refactor: remove dpracted useStore

- Rename CommonJS build output from .js to .cjs extensions
- Add .js extensions to ESM imports (required by Node.js)
- Add .cjs extensions to CommonJS requires
- Add post-build scripts for both ESM and CommonJS builds
- Update package.json exports to reference .cjs files for require()

Fixes: ReferenceError: exports is not defined in ES module scope

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

.gitignore

@@ -19,9 +19,11 @@
 .LSOverride
 
 node_modules
+tsconfig.tsbuildinfo
 
 # Icon must end with two \r
 
+.claude
 
 # Thumbnails
 ._*
@@ -44,6 +46,8 @@ Temporary Items
 
 ToDo.txt
 .idea
+dist
+index.ts
 
 .env
 .docker/volumes

.prettierrc

@@ -0,0 +1,7 @@
+{
+  "semi": true,
+  "singleQuote": false,
+  "trailingComma": "all",
+  "printWidth": 80,
+  "tabWidth": 2
+}

README.md

@@ -14,7 +14,8 @@
 ![Docker](https://img.shields.io/badge/Docker-2496ED?logo=docker&logoColor=fff&style=flat)
 ![Nginx](https://img.shields.io/badge/Nginx-009639?logo=nginx&logoColor=fff&style=flat)
 
-The problem solver for every household in the world: **STOCKHOME**! Have you ever spent too long searching for things in your freezer or pantry? If so, this open-source project is just the right thing for your home server!
+The problem solver for every household in the world: **STOCKHOME**! Have you ever spent too long searching for things in
+your freezer or pantry? If so, this open-source project is just the right thing for your home server!
 
 <p align="center">
   <img src="./.github/assets/Arc_Inventory.low.jpg" width="802" alt="Inventory Screenshot" />
@@ -51,7 +52,8 @@ Clone this repository by running:
 git clone --branch v0.1 --single-branch https://github.com/theis-js/stockhome.git
 ```
 
-You can replace `v0.1` with the latest release tag to get the latest version of the stack. You can also use `dev` to get the latest development version, but keep in mind that it may contain bugs and errors.
+You can replace `v0.1` with any other release tag to get your desired version of the repo. You can also use `dev` to get
+the latest development version, but keep in mind that it may contain bugs and errors.
 
 View the available version tags here: [Releases](https://github.com/theis-js/stockhome/tags)
 
@@ -64,16 +66,18 @@ In the root directory of this repository create an `.env` file and enter the fol
 ```txt
 MYSQL_ROOT_PASSWORD=
 AUTH_SIGNATURE=
-BACKEND_HOST=localhost
+BACKEND_HOST=stockhome-backend
 ```
 
-Make sure that you have set an secure root password and a secure signature.
+Make sure that you have set a secure root password and a secure signature.
 
 > **Note** These three values cannot contain special characters.
 
-The `BACKEND_HOST` can be set to the IP address of your server or to `localhost` if you are running the app on your local machine.
+The `BACKEND_HOST` can be set to the IP address of your server or to `localhost` if you are running the app on your
+local machine.
 
-> **Change Docker Config:** If you want to run the stack for example in a docker network or want to change something at the docker config, visit the [Docker docs](./.github/docs/docker/README.md) for this project.
+> **Change Docker Config:** If you want to run the stack for example in a docker network or want to change something at
+> the docker config, visit the [Docker docs](./.github/docs/docker/README.md) for this project.
 
 ### 4. Start Stockhome
 
@@ -83,7 +87,7 @@ First, navigate into the root directory of this repository and run:
 docker compose up -d --build
 ```
 
-The database and all necessary services are started and initialised automatically.
+The database and all necessary services are started and initialized automatically.
 
 ### 5. First login
 
@@ -94,31 +98,42 @@ Username: admin
 Password: admin
 ```
 
+The docker config exposes the frontend on port `80`. Therefore, you can access the web page either on
+`http://localhost`, if you hosted it on your local machine, or under the IP-Adress or hostname of your server.
+
+If port `80` is occupied, you can change the docker-compose. Therefore, take a look
+at [Change Port Config](.github/docs/docker/README.md#ports).
+
 _Keep in mind that you should change the password later in the settings page._
 
 > **Note** If errors occur get yourself some help in the [error code page](./.github/docs/error/README.md).
 
 ## Feedback and bug reports - Troubleshooting
 
-I'd be grateful if you could report any bugs as issues here in the repository! [Report a bug](https://github.com/theis-js/stockhome/issues/new/choose)
+I'd be grateful if you could report any bugs as issues here in the
+repository! [Report a bug](https://github.com/theis-js/stockhome/issues/new/choose)
 
 ## Update
 
-To update stockhome to the latest version, navigate into the root directory of this repository and run:
+To update Stockhome to the latest version, navigate into the root directory of this repository and run:
+
+```shell
+git fetch --all --tags && git checkout "$(git describe --tags "$(git rev-list --tags --max-count=1)")"
+```
+
+To rebuild the containers run:
 
 ```shell
-git pull
-latesttag=$(git describe --tags)
-git checkout ${latesttag}
 docker compose up -d --build
 ```
 
-To update to a specific version, replace `latesttag` with the version tag you want to update to. You can view the available version tags here: [Releases](https://github.com/theis-js/stockhome/tags)
+To update/downgrade to a specific version, run the command below. You can replace `v0.1` with the tag/version you want.
+You can find all Releases her: [Releases](https://github.com/theis-js/stockhome/tags).
 
 **Example to downgrade/update to version `v0.1`:**
 
 ```shell
-git pull
+git fetch --all
 git checkout v0.1
 docker compose up -d --build
 ```
@@ -131,20 +146,20 @@ docker compose up -d --build
 - Visual Studio Code (or any other IDE)
 - Cloned the repository
 
-### Start backend and database
+### Initialize repository dependencies
 
 First, navigate into the root directory of this repository and run:
 
 ```shell
-docker compose -f docker-compose.dev.yml up -d --build
+npm install
 ```
 
-### Start frontend
+### Start development environment
 
-Navigate into the `frontend` directory and run:
+Stay in the root directory and run:
 
 ```shell
-npm install
+npm run build:shared
 npm run dev
 ```
 

backend/Dockerfile

@@ -1,12 +1,47 @@
-FROM node:20-alpine
+FROM node:22-alpine AS builder
+
+WORKDIR /app
+
+# Workspace manifests (npm workspaces need these present)
+COPY package.json package-lock.json ./
+COPY backend/package.json backend/
+COPY frontend/package.json frontend/
+COPY shared/package.json shared/
+
+# Install all deps for the monorepo (includes devDeps for building)
+RUN npm ci
+
+# Copy sources required to build shared + backend
+COPY shared/ shared/
+COPY backend/ backend/
+
+# Build shared (now produces dist/esm + dist/cjs + dist/types) and then backend
+RUN npm run build --workspace=shared
+RUN npm run build --workspace=backend
+
+
+FROM node:22-alpine AS runner
 
 ENV NODE_ENV=production
-WORKDIR /backend
+WORKDIR /app
 
-COPY package*.json ./
+# Workspace manifests again (so npm can install prod deps for backend + shared)
+COPY package.json package-lock.json ./
+COPY backend/package.json backend/
+COPY frontend/package.json frontend/
+COPY shared/package.json shared/
+
+# Install prod deps only
 RUN npm ci --omit=dev
 
-COPY . .
+# Copy runtime artifacts
+COPY --from=builder /app/backend/dist backend/dist
+COPY --from=builder /app/backend/database.scheme.sql backend/database.scheme.sql
+
+# Copy the full shared dist output (esm/cjs/types)
+COPY --from=builder /app/shared/dist shared/dist
+COPY shared/package.json shared/package.json
 
 EXPOSE 8004
-CMD ["npm", "start"]
+WORKDIR /app/backend
+CMD ["node", "dist/server.js"]

backend/database.mockEN.sql

@@ -1,133 +1,169 @@
 -- =============================================================
---  STOCKHOME – MOCK DATA
+--  STOCKHOME – MOCK DATA (EN)
---  Generates: 5 Storage Locations, ~100 Products
+--  Generates: 5 Storage Locations, 94 Products
+--
+--  Safe to re-run: storage locations are upserted by name, and
+--  products reference the locations by looked-up UUID rather
+--  than a hardcoded literal. This avoids the FK error 1452 that
+--  occurs when a location with the same name already exists
+--  (storage_locations.name is UNIQUE) with a different UUID.
+--
+--  Uncomment the DELETE below if you want a clean product table.
 -- =============================================================
 
 USE stockhome;
 
+-- Optional clean slate for products only (keeps user/app settings):
+-- DELETE FROM products;
+
 -- =============================================
 -- Storage Locations (5)
 -- =============================================
-INSERT INTO storage_locations (uuid, name, description) VALUES
+INSERT INTO storage_locations (uuid, name, description)
-(UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), 'Main Freezer',        'Large chest freezer in the basement'),
+VALUES (UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), 'Main Freezer', 'Large chest freezer in the basement'),
-(UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), 'Kitchen Freezer',     'Freezer compartment of the kitchen fridge'),
+       (UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), 'Kitchen Freezer',
-(UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), 'Pantry',              'Dry goods storage in the hallway'),
+        'Freezer compartment of the kitchen fridge'),
-(UUID_TO_BIN('a1000000-0000-0000-0000-000000000004'), 'Kitchen Fridge',      'Main refrigerator in the kitchen'),
+       (UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), 'Pantry', 'Dry goods storage in the hallway'),
-(UUID_TO_BIN('a1000000-0000-0000-0000-000000000005'), 'Cellar Shelf',        'Cool storage shelves in the cellar');
+       (UUID_TO_BIN('a1000000-0000-0000-0000-000000000004'), 'Kitchen Fridge', 'Main refrigerator in the kitchen'),
+       (UUID_TO_BIN('a1000000-0000-0000-0000-000000000005'), 'Cellar Shelf', 'Cool storage shelves in the cellar')
+ON DUPLICATE KEY UPDATE description = VALUES(description);
 
 -- =============================================
--- Products (~100)
+-- Resolve the actual UUIDs (works whether the rows were just
+-- inserted or already existed with different UUIDs)
+-- =============================================
+SET @loc_main_freezer = (SELECT uuid
+                         FROM storage_locations
+                         WHERE name = 'Main Freezer');
+SET @loc_kitchen_freezer = (SELECT uuid
+                            FROM storage_locations
+                            WHERE name = 'Kitchen Freezer');
+SET @loc_pantry = (SELECT uuid
+                   FROM storage_locations
+                   WHERE name = 'Pantry');
+SET @loc_kitchen_fridge = (SELECT uuid
+                           FROM storage_locations
+                           WHERE name = 'Kitchen Fridge');
+SET @loc_cellar_shelf = (SELECT uuid
+                         FROM storage_locations
+                         WHERE name = 'Cellar Shelf');
+
+-- =============================================
+-- Products (94)
+-- uuid, picture, created_at, updated_at and deleted rely on
+-- their column defaults.
 -- Self-frozen items have a bottling_date.
 -- Store-bought items have bottling_date = NULL.
 -- =============================================
-INSERT INTO products (uuid, name, description, price, amount, storage_location, expiry_date, bottling_date, picture, deleted) VALUES
+INSERT INTO products (name, description, price, amount, storage_location, expiry_date, bottling_date)
+VALUES
 
 -- ── Self-frozen items (Main Freezer) ──
-(UUID_TO_BIN(UUID()), 'Strawberry Puree',          'Blended fresh strawberries',           NULL, 4,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2026-12-15', '2026-06-01', NULL, FALSE),
+('Strawberry Puree', 'Blended fresh strawberries', NULL, 4, @loc_main_freezer, '2026-12-15', '2026-06-01'),
-(UUID_TO_BIN(UUID()), 'Tomato Sauce',              'Homemade marinara sauce',              NULL, 6,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2027-01-10', '2026-05-20', NULL, FALSE),
+('Tomato Sauce', 'Homemade marinara sauce', NULL, 6, @loc_main_freezer, '2027-01-10', '2026-05-20'),
-(UUID_TO_BIN(UUID()), 'Chicken Broth',             'Slow-cooked bone broth',               NULL, 3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2026-11-30', '2026-04-15', NULL, FALSE),
+('Chicken Broth', 'Slow-cooked bone broth', NULL, 3, @loc_main_freezer, '2026-11-30', '2026-04-15'),
-(UUID_TO_BIN(UUID()), 'Blanched Green Beans',      'Garden green beans, blanched',         NULL, 5,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2027-02-01', '2026-05-28', NULL, FALSE),
+('Blanched Green Beans', 'Garden green beans, blanched', NULL, 5, @loc_main_freezer, '2027-02-01', '2026-05-28'),
-(UUID_TO_BIN(UUID()), 'Pesto Cubes',               'Basil pesto in ice cube trays',        NULL, 2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2026-12-01', '2026-05-10', NULL, FALSE),
+('Pesto Cubes', 'Basil pesto in ice cube trays', NULL, 2, @loc_main_freezer, '2026-12-01', '2026-05-10'),
-(UUID_TO_BIN(UUID()), 'Raspberry Jam',             'Homemade seedless raspberry jam',      NULL, 3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2027-03-01', '2026-06-02', NULL, FALSE),
+('Raspberry Jam', 'Homemade seedless raspberry jam', NULL, 3, @loc_main_freezer, '2027-03-01', '2026-06-02'),
-(UUID_TO_BIN(UUID()), 'Beef Stew',                 'Leftover beef stew, portioned',        NULL, 4,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2026-10-15', '2026-04-20', NULL, FALSE),
+('Beef Stew', 'Leftover beef stew, portioned', NULL, 4, @loc_main_freezer, '2026-10-15', '2026-04-20'),
-(UUID_TO_BIN(UUID()), 'Blanched Spinach',          'Fresh spinach, blanched and pressed',  NULL, 6,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2027-01-20', '2026-05-15', NULL, FALSE),
+('Blanched Spinach', 'Fresh spinach, blanched and pressed', NULL, 6, @loc_main_freezer, '2027-01-20', '2026-05-15'),
-(UUID_TO_BIN(UUID()), 'Mango Chunks',              'Diced ripe mangoes',                   NULL, 3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2026-12-20', '2026-05-25', NULL, FALSE),
+('Mango Chunks', 'Diced ripe mangoes', NULL, 3, @loc_main_freezer, '2026-12-20', '2026-05-25'),
-(UUID_TO_BIN(UUID()), 'Carrot Soup',               'Pureed carrot ginger soup',            NULL, 4,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2026-11-01', '2026-04-10', NULL, FALSE),
+('Carrot Soup', 'Pureed carrot ginger soup', NULL, 4, @loc_main_freezer, '2026-11-01', '2026-04-10'),
 
 -- ── Self-frozen items (Kitchen Freezer) ──
-(UUID_TO_BIN(UUID()), 'Blueberry Mix',             'Mixed blueberries from the garden',    NULL, 2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2026-12-10', '2026-06-03', NULL, FALSE),
+('Blueberry Mix', 'Mixed blueberries from the garden', NULL, 2, @loc_kitchen_freezer, '2026-12-10', '2026-06-03'),
-(UUID_TO_BIN(UUID()), 'Zucchini Slices',           'Sliced and blanched zucchini',         NULL, 3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2027-01-15', '2026-05-18', NULL, FALSE),
+('Zucchini Slices', 'Sliced and blanched zucchini', NULL, 3, @loc_kitchen_freezer, '2027-01-15', '2026-05-18'),
-(UUID_TO_BIN(UUID()), 'Apple Sauce',               'Homemade cinnamon apple sauce',        NULL, 5,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2027-02-10', '2026-05-22', NULL, FALSE),
+('Apple Sauce', 'Homemade cinnamon apple sauce', NULL, 5, @loc_kitchen_freezer, '2027-02-10', '2026-05-22'),
-(UUID_TO_BIN(UUID()), 'Bolognese Sauce',           'Classic meat sauce, portioned',        NULL, 3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2026-11-20', '2026-04-25', NULL, FALSE),
+('Bolognese Sauce', 'Classic meat sauce, portioned', NULL, 3, @loc_kitchen_freezer, '2026-11-20', '2026-04-25'),
-(UUID_TO_BIN(UUID()), 'Herb Butter',               'Parsley and garlic butter logs',       NULL, 4,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2026-12-30', '2026-05-30', NULL, FALSE),
+('Herb Butter', 'Parsley and garlic butter logs', NULL, 4, @loc_kitchen_freezer, '2026-12-30', '2026-05-30'),
-(UUID_TO_BIN(UUID()), 'Peach Slices',              'Frozen ripe peach slices',             NULL, 2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2027-01-05', '2026-06-01', NULL, FALSE),
+('Peach Slices', 'Frozen ripe peach slices', NULL, 2, @loc_kitchen_freezer, '2027-01-05', '2026-06-01'),
-(UUID_TO_BIN(UUID()), 'Corn Kernels',              'Fresh sweet corn, cut off the cob',    NULL, 3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2027-02-20', '2026-05-12', NULL, FALSE),
+('Corn Kernels', 'Fresh sweet corn, cut off the cob', NULL, 3, @loc_kitchen_freezer, '2027-02-20', '2026-05-12'),
-(UUID_TO_BIN(UUID()), 'Pumpkin Puree',             'Roasted and pureed butternut squash',  NULL, 4,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2027-03-10', '2026-05-08', NULL, FALSE),
+('Pumpkin Puree', 'Roasted and pureed butternut squash', NULL, 4, @loc_kitchen_freezer, '2027-03-10', '2026-05-08'),
-(UUID_TO_BIN(UUID()), 'Lemon Juice Cubes',         'Fresh lemon juice frozen in cubes',    NULL, 6,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2027-04-01', '2026-06-02', NULL, FALSE),
+('Lemon Juice Cubes', 'Fresh lemon juice frozen in cubes', NULL, 6, @loc_kitchen_freezer, '2027-04-01', '2026-06-02'),
-(UUID_TO_BIN(UUID()), 'Minced Garlic',             'Peeled and minced garlic cloves',      NULL, 2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2027-01-25', '2026-05-14', NULL, FALSE),
+('Minced Garlic', 'Peeled and minced garlic cloves', NULL, 2, @loc_kitchen_freezer, '2027-01-25', '2026-05-14'),
 
 -- ── Self-frozen items (split across storages) ──
-(UUID_TO_BIN(UUID()), 'Vegetable Stock',           'Homemade veggie stock',                NULL, 5,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2026-12-05', '2026-04-30', NULL, FALSE),
+('Vegetable Stock', 'Homemade veggie stock', NULL, 5, @loc_main_freezer, '2026-12-05', '2026-04-30'),
-(UUID_TO_BIN(UUID()), 'Rhubarb Compote',           'Stewed rhubarb with sugar',            NULL, 3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2027-01-30', '2026-05-05', NULL, FALSE),
+('Rhubarb Compote', 'Stewed rhubarb with sugar', NULL, 3, @loc_main_freezer, '2027-01-30', '2026-05-05'),
-(UUID_TO_BIN(UUID()), 'Cherry Halves',             'Pitted sour cherries',                 NULL, 2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2026-12-25', '2026-06-01', NULL, FALSE),
+('Cherry Halves', 'Pitted sour cherries', NULL, 2, @loc_main_freezer, '2026-12-25', '2026-06-01'),
-(UUID_TO_BIN(UUID()), 'Cauliflower Florets',       'Blanched cauliflower pieces',          NULL, 4,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2027-02-15', '2026-05-19', NULL, FALSE),
+('Cauliflower Florets', 'Blanched cauliflower pieces', NULL, 4, @loc_kitchen_freezer, '2027-02-15', '2026-05-19'),
-(UUID_TO_BIN(UUID()), 'Plum Jam',                  'Homemade plum jam',                    NULL, 3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2027-03-20', '2026-05-27', NULL, FALSE),
+('Plum Jam', 'Homemade plum jam', NULL, 3, @loc_main_freezer, '2027-03-20', '2026-05-27'),
-(UUID_TO_BIN(UUID()), 'Mushroom Duxelles',         'Finely chopped sauteed mushrooms',     NULL, 2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2026-11-10', '2026-04-18', NULL, FALSE),
+('Mushroom Duxelles', 'Finely chopped sauteed mushrooms', NULL, 2, @loc_kitchen_freezer, '2026-11-10', '2026-04-18'),
-(UUID_TO_BIN(UUID()), 'Chili Con Carne',           'Portioned homemade chili',             NULL, 3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2026-10-30', '2026-04-12', NULL, FALSE),
+('Chili Con Carne', 'Portioned homemade chili', NULL, 3, @loc_main_freezer, '2026-10-30', '2026-04-12'),
-(UUID_TO_BIN(UUID()), 'Banana Slices',             'Ripe banana slices for smoothies',     NULL, 5,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2026-12-08', '2026-06-03', NULL, FALSE),
+('Banana Slices', 'Ripe banana slices for smoothies', NULL, 5, @loc_kitchen_freezer, '2026-12-08', '2026-06-03'),
-(UUID_TO_BIN(UUID()), 'Parsley Cubes',             'Chopped parsley in olive oil cubes',   NULL, 4,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2027-04-15', '2026-05-31', NULL, FALSE),
+('Parsley Cubes', 'Chopped parsley in olive oil cubes', NULL, 4, @loc_kitchen_freezer, '2027-04-15', '2026-05-31'),
-(UUID_TO_BIN(UUID()), 'Lentil Soup',               'Thick homemade lentil soup',           NULL, 3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2026-11-25', '2026-04-22', NULL, FALSE),
+('Lentil Soup', 'Thick homemade lentil soup', NULL, 3, @loc_main_freezer, '2026-11-25', '2026-04-22'),
-(UUID_TO_BIN(UUID()), 'Blackberry Puree',          'Strained wild blackberries',           NULL, 2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2027-01-12', '2026-06-02', NULL, FALSE),
+('Blackberry Puree', 'Strained wild blackberries', NULL, 2, @loc_main_freezer, '2027-01-12', '2026-06-02'),
-(UUID_TO_BIN(UUID()), 'Roasted Bell Peppers',      'Peeled roasted red peppers',           NULL, 3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2027-02-28', '2026-05-16', NULL, FALSE),
+('Roasted Bell Peppers', 'Peeled roasted red peppers', NULL, 3, @loc_kitchen_freezer, '2027-02-28', '2026-05-16'),
-(UUID_TO_BIN(UUID()), 'Goulash',                   'Hungarian-style beef goulash',         NULL, 2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2026-10-20', '2026-04-08', NULL, FALSE),
+('Goulash', 'Hungarian-style beef goulash', NULL, 2, @loc_main_freezer, '2026-10-20', '2026-04-08'),
-(UUID_TO_BIN(UUID()), 'Mixed Berry Smoothie Pack', 'Pre-portioned smoothie mix',           NULL, 6,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2026-12-18', '2026-06-04', NULL, FALSE),
+('Mixed Berry Smoothie Pack', 'Pre-portioned smoothie mix', NULL, 6, @loc_kitchen_freezer, '2026-12-18', '2026-06-04'),
-(UUID_TO_BIN(UUID()), 'Leek Cream Soup',           'Pureed leek and potato soup',          NULL, 3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2026-11-15', '2026-04-28', NULL, FALSE),
+('Leek Cream Soup', 'Pureed leek and potato soup', NULL, 3, @loc_main_freezer, '2026-11-15', '2026-04-28'),
-(UUID_TO_BIN(UUID()), 'Diced Onions',              'Pre-diced yellow onions',              NULL, 4,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2027-03-05', '2026-05-24', NULL, FALSE),
+('Diced Onions', 'Pre-diced yellow onions', NULL, 4, @loc_kitchen_freezer, '2027-03-05', '2026-05-24'),
-(UUID_TO_BIN(UUID()), 'Grape Juice Concentrate',   'Reduced grape juice for desserts',     NULL, 2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2027-02-05', '2026-05-11', NULL, FALSE),
+('Grape Juice Concentrate', 'Reduced grape juice for desserts', NULL, 2, @loc_main_freezer, '2027-02-05', '2026-05-11'),
-(UUID_TO_BIN(UUID()), 'Currant Jelly',             'Red currant jelly',                    NULL, 3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2027-04-10', '2026-06-01', NULL, FALSE),
+('Currant Jelly', 'Red currant jelly', NULL, 3, @loc_main_freezer, '2027-04-10', '2026-06-01'),
-(UUID_TO_BIN(UUID()), 'Broccoli Florets',          'Blanched broccoli pieces',             NULL, 4,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2027-01-08', '2026-05-20', NULL, FALSE),
+('Broccoli Florets', 'Blanched broccoli pieces', NULL, 4, @loc_kitchen_freezer, '2027-01-08', '2026-05-20'),
-(UUID_TO_BIN(UUID()), 'Sweet Potato Mash',         'Roasted and mashed sweet potatoes',    NULL, 3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2026-12-28', '2026-05-17', NULL, FALSE),
+('Sweet Potato Mash', 'Roasted and mashed sweet potatoes', NULL, 3, @loc_main_freezer, '2026-12-28', '2026-05-17'),
-(UUID_TO_BIN(UUID()), 'Apricot Halves',            'Frozen ripe apricot halves',           NULL, 2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2027-02-12', '2026-06-03', NULL, FALSE),
+('Apricot Halves', 'Frozen ripe apricot halves', NULL, 2, @loc_kitchen_freezer, '2027-02-12', '2026-06-03'),
-(UUID_TO_BIN(UUID()), 'Minestrone',                'Chunky Italian vegetable soup',        NULL, 3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2026-11-08', '2026-04-14', NULL, FALSE),
+('Minestrone', 'Chunky Italian vegetable soup', NULL, 3, @loc_main_freezer, '2026-11-08', '2026-04-14'),
-(UUID_TO_BIN(UUID()), 'Pea Puree',                 'Fresh garden peas, pureed',            NULL, 4,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2027-03-15', '2026-05-26', NULL, FALSE),
+('Pea Puree', 'Fresh garden peas, pureed', NULL, 4, @loc_kitchen_freezer, '2027-03-15', '2026-05-26'),
-(UUID_TO_BIN(UUID()), 'Cranberry Sauce',           'Homemade whole berry cranberry sauce', NULL, 2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2027-01-18', '2026-05-09', NULL, FALSE),
+('Cranberry Sauce', 'Homemade whole berry cranberry sauce', NULL, 2, @loc_main_freezer, '2027-01-18', '2026-05-09'),
-(UUID_TO_BIN(UUID()), 'Egg Noodles',               'Homemade egg noodles, pre-cooked',     NULL, 5,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2026-12-12', '2026-05-29', NULL, FALSE),
+('Egg Noodles', 'Homemade egg noodles, pre-cooked', NULL, 5, @loc_kitchen_freezer, '2026-12-12', '2026-05-29'),
-(UUID_TO_BIN(UUID()), 'Gooseberry Compote',        'Stewed gooseberries',                  NULL, 2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2027-02-22', '2026-06-02', NULL, FALSE),
+('Gooseberry Compote', 'Stewed gooseberries', NULL, 2, @loc_main_freezer, '2027-02-22', '2026-06-02'),
-(UUID_TO_BIN(UUID()), 'Creamed Corn',              'Homemade creamed corn',                NULL, 3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2027-01-28', '2026-05-21', NULL, FALSE),
+('Creamed Corn', 'Homemade creamed corn', NULL, 3, @loc_kitchen_freezer, '2027-01-28', '2026-05-21'),
-(UUID_TO_BIN(UUID()), 'Chicken Curry',             'Portioned Thai green curry',           NULL, 2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000001'), '2026-10-25', '2026-04-16', NULL, FALSE),
+('Chicken Curry', 'Portioned Thai green curry', NULL, 2, @loc_main_freezer, '2026-10-25', '2026-04-16'),
-(UUID_TO_BIN(UUID()), 'Dill Cubes',                'Chopped dill frozen in water cubes',   NULL, 4,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000002'), '2027-04-20', '2026-06-01', NULL, FALSE),
+('Dill Cubes', 'Chopped dill frozen in water cubes', NULL, 4, @loc_kitchen_freezer, '2027-04-20', '2026-06-01'),
 
 -- ── Store-bought items (no bottling_date) ──
 
 -- Kitchen Fridge
-(UUID_TO_BIN(UUID()), 'Whole Milk',                'Full-fat milk, 1 liter',               '1.19',  2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000004'), '2026-06-14', NULL, NULL, FALSE),
+('Whole Milk', 'Full-fat milk, 1 liter', '1.19', 2, @loc_kitchen_fridge, '2026-06-14', NULL),
-(UUID_TO_BIN(UUID()), 'Greek Yogurt',              'Plain Greek yogurt, 500g',             '2.49',  3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000004'), '2026-06-20', NULL, NULL, FALSE),
+('Greek Yogurt', 'Plain Greek yogurt, 500g', '2.49', 3, @loc_kitchen_fridge, '2026-06-20', NULL),
-(UUID_TO_BIN(UUID()), 'Butter',                    'Unsalted butter, 250g',                '2.29',  2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000004'), '2026-07-15', NULL, NULL, FALSE),
+('Butter', 'Unsalted butter, 250g', '2.29', 2, @loc_kitchen_fridge, '2026-07-15', NULL),
-(UUID_TO_BIN(UUID()), 'Cheddar Cheese',            'Mature cheddar block, 400g',           '3.49',  1,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000004'), '2026-08-10', NULL, NULL, FALSE),
+('Cheddar Cheese', 'Mature cheddar block, 400g', '3.49', 1, @loc_kitchen_fridge, '2026-08-10', NULL),
-(UUID_TO_BIN(UUID()), 'Cream Cheese',              'Philadelphia original, 200g',          '1.89',  2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000004'), '2026-06-25', NULL, NULL, FALSE),
+('Cream Cheese', 'Philadelphia original, 200g', '1.89', 2, @loc_kitchen_fridge, '2026-06-25', NULL),
-(UUID_TO_BIN(UUID()), 'Orange Juice',              'Fresh squeezed, 1 liter',              '2.99',  1,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000004'), '2026-06-12', NULL, NULL, FALSE),
+('Orange Juice', 'Fresh squeezed, 1 liter', '2.99', 1, @loc_kitchen_fridge, '2026-06-12', NULL),
-(UUID_TO_BIN(UUID()), 'Eggs',                      'Free-range eggs, pack of 10',          '3.29',  1,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000004'), '2026-06-18', NULL, NULL, FALSE),
+('Eggs', 'Free-range eggs, pack of 10', '3.29', 1, @loc_kitchen_fridge, '2026-06-18', NULL),
-(UUID_TO_BIN(UUID()), 'Ham Slices',                'Cooked ham, 200g pack',                '2.19',  2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000004'), '2026-06-10', NULL, NULL, FALSE),
+('Ham Slices', 'Cooked ham, 200g pack', '2.19', 2, @loc_kitchen_fridge, '2026-06-10', NULL),
-(UUID_TO_BIN(UUID()), 'Mozzarella',                'Fresh mozzarella ball, 125g',          '1.49',  3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000004'), '2026-06-09', NULL, NULL, FALSE),
+('Mozzarella', 'Fresh mozzarella ball, 125g', '1.49', 3, @loc_kitchen_fridge, '2026-06-09', NULL),
-(UUID_TO_BIN(UUID()), 'Hummus',                    'Classic chickpea hummus, 300g',        '2.29',  1,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000004'), '2026-06-15', NULL, NULL, FALSE),
+('Hummus', 'Classic chickpea hummus, 300g', '2.29', 1, @loc_kitchen_fridge, '2026-06-15', NULL),
 
 -- Pantry
-(UUID_TO_BIN(UUID()), 'Pasta Spaghetti',           'Durum wheat spaghetti, 500g',          '1.29',  4,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2028-03-01', NULL, NULL, FALSE),
+('Pasta Spaghetti', 'Durum wheat spaghetti, 500g', '1.29', 4, @loc_pantry, '2028-03-01', NULL),
-(UUID_TO_BIN(UUID()), 'Basmati Rice',              'Long grain basmati, 1kg',              '2.99',  2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2028-06-01', NULL, NULL, FALSE),
+('Basmati Rice', 'Long grain basmati, 1kg', '2.99', 2, @loc_pantry, '2028-06-01', NULL),
-(UUID_TO_BIN(UUID()), 'Canned Tomatoes',           'Chopped tomatoes, 400g tin',           '0.89',  6,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2028-01-15', NULL, NULL, FALSE),
+('Canned Tomatoes', 'Chopped tomatoes, 400g tin', '0.89', 6, @loc_pantry, '2028-01-15', NULL),
-(UUID_TO_BIN(UUID()), 'Canned Chickpeas',          'Chickpeas in water, 400g',             '0.99',  4,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2028-04-10', NULL, NULL, FALSE),
+('Canned Chickpeas', 'Chickpeas in water, 400g', '0.99', 4, @loc_pantry, '2028-04-10', NULL),
-(UUID_TO_BIN(UUID()), 'Olive Oil',                 'Extra virgin olive oil, 500ml',        '5.99',  1,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2027-09-01', NULL, NULL, FALSE),
+('Olive Oil', 'Extra virgin olive oil, 500ml', '5.99', 1, @loc_pantry, '2027-09-01', NULL),
-(UUID_TO_BIN(UUID()), 'Peanut Butter',             'Crunchy peanut butter, 350g',          '3.49',  2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2027-02-01', NULL, NULL, FALSE),
+('Peanut Butter', 'Crunchy peanut butter, 350g', '3.49', 2, @loc_pantry, '2027-02-01', NULL),
-(UUID_TO_BIN(UUID()), 'Honey',                     'Raw wildflower honey, 500g',           '6.99',  1,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2028-12-01', NULL, NULL, FALSE),
+('Honey', 'Raw wildflower honey, 500g', '6.99', 1, @loc_pantry, '2028-12-01', NULL),
-(UUID_TO_BIN(UUID()), 'Oats',                      'Rolled oats, 1kg',                     '1.99',  2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2027-08-01', NULL, NULL, FALSE),
+('Oats', 'Rolled oats, 1kg', '1.99', 2, @loc_pantry, '2027-08-01', NULL),
-(UUID_TO_BIN(UUID()), 'Flour',                     'All-purpose wheat flour, 1kg',         '0.99',  3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2027-06-01', NULL, NULL, FALSE),
+('Flour', 'All-purpose wheat flour, 1kg', '0.99', 3, @loc_pantry, '2027-06-01', NULL),
-(UUID_TO_BIN(UUID()), 'Sugar',                     'White granulated sugar, 1kg',           '1.49',  2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2029-01-01', NULL, NULL, FALSE),
+('Sugar', 'White granulated sugar, 1kg', '1.49', 2, @loc_pantry, '2029-01-01', NULL),
-(UUID_TO_BIN(UUID()), 'Canned Tuna',               'Tuna chunks in sunflower oil, 185g',  '1.79',  5,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2028-07-01', NULL, NULL, FALSE),
+('Canned Tuna', 'Tuna chunks in sunflower oil, 185g', '1.79', 5, @loc_pantry, '2028-07-01', NULL),
-(UUID_TO_BIN(UUID()), 'Coconut Milk',              'Full-fat coconut milk, 400ml',         '1.59',  3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2028-02-01', NULL, NULL, FALSE),
+('Coconut Milk', 'Full-fat coconut milk, 400ml', '1.59', 3, @loc_pantry, '2028-02-01', NULL),
-(UUID_TO_BIN(UUID()), 'Soy Sauce',                 'Naturally brewed soy sauce, 250ml',    '2.49',  1,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2028-05-01', NULL, NULL, FALSE),
+('Soy Sauce', 'Naturally brewed soy sauce, 250ml', '2.49', 1, @loc_pantry, '2028-05-01', NULL),
-(UUID_TO_BIN(UUID()), 'Balsamic Vinegar',          'Aged balsamic vinegar, 250ml',         '3.99',  1,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2029-06-01', NULL, NULL, FALSE),
+('Balsamic Vinegar', 'Aged balsamic vinegar, 250ml', '3.99', 1, @loc_pantry, '2029-06-01', NULL),
-(UUID_TO_BIN(UUID()), 'Dried Lentils',             'Green lentils, 500g',                  '1.69',  2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2028-09-01', NULL, NULL, FALSE),
+('Dried Lentils', 'Green lentils, 500g', '1.69', 2, @loc_pantry, '2028-09-01', NULL),
-(UUID_TO_BIN(UUID()), 'Cornflakes',                'Classic cornflakes, 500g',             '2.19',  1,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2027-04-01', NULL, NULL, FALSE),
+('Cornflakes', 'Classic cornflakes, 500g', '2.19', 1, @loc_pantry, '2027-04-01', NULL),
-(UUID_TO_BIN(UUID()), 'Black Beans',               'Canned black beans, 400g',             '1.09',  3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2028-08-01', NULL, NULL, FALSE),
+('Black Beans', 'Canned black beans, 400g', '1.09', 3, @loc_pantry, '2028-08-01', NULL),
-(UUID_TO_BIN(UUID()), 'Mustard',                   'Dijon mustard, 200g jar',              '1.89',  1,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2027-11-01', NULL, NULL, FALSE),
+('Mustard', 'Dijon mustard, 200g jar', '1.89', 1, @loc_pantry, '2027-11-01', NULL),
-(UUID_TO_BIN(UUID()), 'Dried Pasta Penne',         'Penne rigate, 500g',                   '1.19',  3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2028-05-15', NULL, NULL, FALSE),
+('Dried Pasta Penne', 'Penne rigate, 500g', '1.19', 3, @loc_pantry, '2028-05-15', NULL),
-(UUID_TO_BIN(UUID()), 'Maple Syrup',               'Pure Canadian maple syrup, 250ml',     '7.49',  1,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000003'), '2028-10-01', NULL, NULL, FALSE),
+('Maple Syrup', 'Pure Canadian maple syrup, 250ml', '7.49', 1, @loc_pantry, '2028-10-01', NULL),
 
 -- Cellar Shelf
-(UUID_TO_BIN(UUID()), 'Canned Corn',               'Sweet corn kernels, 340g',             '1.09',  4,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000005'), '2028-03-15', NULL, NULL, FALSE),
+('Canned Corn', 'Sweet corn kernels, 340g', '1.09', 4, @loc_cellar_shelf, '2028-03-15', NULL),
-(UUID_TO_BIN(UUID()), 'Canned Peas',               'Garden peas, 400g tin',                '0.89',  3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000005'), '2028-06-10', NULL, NULL, FALSE),
+('Canned Peas', 'Garden peas, 400g tin', '0.89', 3, @loc_cellar_shelf, '2028-06-10', NULL),
-(UUID_TO_BIN(UUID()), 'Apple Cider Vinegar',       'Organic apple cider vinegar, 500ml',   '3.29',  2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000005'), '2028-11-01', NULL, NULL, FALSE),
+('Apple Cider Vinegar', 'Organic apple cider vinegar, 500ml', '3.29', 2, @loc_cellar_shelf, '2028-11-01', NULL),
-(UUID_TO_BIN(UUID()), 'Sunflower Oil',             'Refined sunflower oil, 1 liter',       '2.49',  1,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000005'), '2027-10-01', NULL, NULL, FALSE),
+('Sunflower Oil', 'Refined sunflower oil, 1 liter', '2.49', 1, @loc_cellar_shelf, '2027-10-01', NULL),
-(UUID_TO_BIN(UUID()), 'Tomato Paste',              'Double concentrated, 200g tube',       '1.29',  3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000005'), '2028-01-01', NULL, NULL, FALSE),
+('Tomato Paste', 'Double concentrated, 200g tube', '1.29', 3, @loc_cellar_shelf, '2028-01-01', NULL),
-(UUID_TO_BIN(UUID()), 'Canned Sardines',           'Sardines in olive oil, 120g',          '2.19',  4,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000005'), '2028-09-15', NULL, NULL, FALSE),
+('Canned Sardines', 'Sardines in olive oil, 120g', '2.19', 4, @loc_cellar_shelf, '2028-09-15', NULL),
-(UUID_TO_BIN(UUID()), 'Pickled Cucumbers',         'Whole pickled gherkins, 670g jar',     '1.99',  2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000005'), '2027-12-01', NULL, NULL, FALSE),
+('Pickled Cucumbers', 'Whole pickled gherkins, 670g jar', '1.99', 2, @loc_cellar_shelf, '2027-12-01', NULL),
-(UUID_TO_BIN(UUID()), 'Jam Strawberry',            'Store-bought strawberry jam, 450g',    '2.79',  1,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000005'), '2027-07-01', NULL, NULL, FALSE),
+('Jam Strawberry', 'Store-bought strawberry jam, 450g', '2.79', 1, @loc_cellar_shelf, '2027-07-01', NULL),
-(UUID_TO_BIN(UUID()), 'Canned Peaches',            'Peach halves in syrup, 420g',          '1.69',  3,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000005'), '2028-04-01', NULL, NULL, FALSE),
+('Canned Peaches', 'Peach halves in syrup, 420g', '1.69', 3, @loc_cellar_shelf, '2028-04-01', NULL),
-(UUID_TO_BIN(UUID()), 'Crackers',                  'Whole wheat crackers, 200g',           '1.89',  2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000005'), '2027-05-01', NULL, NULL, FALSE),
+('Crackers', 'Whole wheat crackers, 200g', '1.89', 2, @loc_cellar_shelf, '2027-05-01', NULL),
 
 -- Additional Kitchen Fridge items
-(UUID_TO_BIN(UUID()), 'Salami',                    'Italian salami slices, 100g',          '2.99',  1,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000004'), '2026-06-20', NULL, NULL, FALSE),
+('Salami', 'Italian salami slices, 100g', '2.99', 1, @loc_kitchen_fridge, '2026-06-20', NULL),
-(UUID_TO_BIN(UUID()), 'Parmesan',                  'Parmigiano Reggiano wedge, 200g',      '4.99',  1,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000004'), '2026-09-01', NULL, NULL, FALSE),
+('Parmesan', 'Parmigiano Reggiano wedge, 200g', '4.99', 1, @loc_kitchen_fridge, '2026-09-01', NULL),
-(UUID_TO_BIN(UUID()), 'Smoked Salmon',             'Sliced smoked salmon, 100g',           '3.99',  1,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000004'), '2026-06-08', NULL, NULL, FALSE),
+('Smoked Salmon', 'Sliced smoked salmon, 100g', '3.99', 1, @loc_kitchen_fridge, '2026-06-08', NULL),
-(UUID_TO_BIN(UUID()), 'Heavy Cream',               'Whipping cream 35%, 200ml',            '1.29',  2,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000004'), '2026-06-16', NULL, NULL, FALSE),
+('Heavy Cream', 'Whipping cream 35%, 200ml', '1.29', 2, @loc_kitchen_fridge, '2026-06-16', NULL),
-(UUID_TO_BIN(UUID()), 'Tofu',                      'Firm organic tofu, 400g',              '2.49',  1,  UUID_TO_BIN('a1000000-0000-0000-0000-000000000004'), '2026-06-22', NULL, NULL, FALSE);
+('Tofu', 'Firm organic tofu, 400g', '2.49', 1, @loc_kitchen_fridge, '2026-06-22', NULL);

backend/misc/express.d.ts

@@ -0,0 +1,11 @@
+import type {AuthTokenPayload} from "../services/tokenService.js";
+
+declare global {
+    namespace Express {
+        interface Request {
+            user?: AuthTokenPayload;
+        }
+    }
+}
+
+export {};

backend/misc/types.ts

@@ -0,0 +1,8 @@
+export type ErrorCode = readonly [code: string, message: string];
+
+export interface Response {
+    success: boolean;
+    code: string;
+    data: any;
+    message: string;
+}

backend/package.json

@@ -2,22 +2,29 @@
   "name": "backend",
   "version": "0.0.0-dev",
   "description": "",
-  "main": "server.js",
+  "main": "server.ts",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
+    "dev": "tsx --watch server.ts",
-    "start": "node server.js",
+    "build": "tsc -b && node scripts/copy-assets.cjs",
-    "dev": "node --watch server.js"
+    "start": "node dist/server.js"
   },
   "keywords": [],
   "author": "",
   "license": "ISC",
-  "type": "module",
+  "type": "commonjs",
   "dependencies": {
+    "@stockhome/shared": "1.0.0",
     "cors": "^2.8.5",
     "dotenv": "^17.2.3",
     "ejs": "^3.1.10",
     "express": "^5.2.1",
     "jose": "^6.0.12",
     "mysql2": "^3.16.0"
+  },
+  "devDependencies": {
+    "@types/express": "^5.0.6",
+    "@types/node": "^26.1.0",
+    "typescript": "~6.0.2",
+    "tsx": "^4.23.0"
   }
 }

backend/routes/app/database/products.database.js

@@ -1,153 +0,0 @@
-import mysql from "mysql2";
-import dotenv from "dotenv";
-dotenv.config();
-
-const pool = mysql
-  .createPool({
-    host: process.env.DB_HOST,
-    user: process.env.DB_USER,
-    password: process.env.DB_PASSWORD,
-    database: process.env.DB_NAME,
-  })
-  .promise();
-
-export const newProduct = async (
-  name,
-  description,
-  price,
-  amount,
-  storage_location,
-  expiry_date,
-  bottling_date,
-) => {
-  let newPrice;
-  if (price == "") {
-    newPrice = null;
-  } else {
-    newPrice = price;
-  }
-
-  const [result] = await pool.query(
-    "INSERT INTO products (name, description, price, amount, storage_location, expiry_date, bottling_date) VALUES (?, ?, ?, ?, UUID_TO_BIN(?), ?, ?)",
-    [
-      name,
-      description,
-      newPrice,
-      amount,
-      storage_location,
-      expiry_date,
-      bottling_date,
-    ],
-  );
-
-  if (result.affectedRows > 0) {
-    return { code: "sp001" }; // success
-  } else {
-    return { code: "ep001" }; // error
-  }
-};
-
-export const productDetails = async (uuid) => {
-  const [result] = await pool.query(
-    `SELECT 
-      BIN_TO_UUID(p.uuid)         AS uuid,
-      p.name,
-      p.description,
-      p.price,
-      p.amount,
-      BIN_TO_UUID(s.uuid)         AS storage_location_uuid,
-      s.name                      AS storage_location_name,
-      p.expiry_date,
-      p.bottling_date,
-      p.picture
-     FROM products p
-     JOIN storage_locations s ON p.storage_location = s.uuid
-     WHERE p.uuid = UUID_TO_BIN(?)`,
-    [uuid],
-  );
-
-  if (result.length > 0) {
-    return { code: "sp003", data: result[0] };
-  } else {
-    return { code: "ep003" };
-  }
-};
-
-export const allProducts = async () => {
-  const [result] = await pool.query(`
-    SELECT 
-  BIN_TO_UUID(p.uuid)            AS uuid,
-  p.name,
-  p.description,
-  p.price,
-  p.amount,
-  BIN_TO_UUID(s.uuid)            AS storage_location_uuid,
-  s.name                         AS storage_location_name,
-  p.expiry_date,
-  p.bottling_date,
-  p.picture,
-  p.created_at,
-  p.updated_at
-  FROM products p
-  JOIN storage_locations s ON p.storage_location = s.uuid
-  WHERE p.deleted = 0
-  `);
-
-  if (result.length > 0) {
-    return { code: "sp002", data: result };
-  } else {
-    return { code: "ep002" };
-  }
-};
-
-export const setAmount = async (itemUUID, amount) => {
-  const [result] = await pool.query(
-    `
-    UPDATE products SET amount = ? WHERE uuid = UUID_TO_BIN(?)
-    `,
-    [amount, itemUUID],
-  );
-
-  if (result.affectedRows > 0) {
-    return { code: "sp004" }; // success
-  } else {
-    return { code: "ep004" }; // error
-  }
-};
-
-export const updateItem = async (itemUUID, newValues) => {
-  const [result] = await pool.query(
-    `
-    UPDATE products SET name = ?, description = ?, price = ?, amount = ?, storage_location = UUID_TO_BIN(?), expiry_date = ?, bottling_date = ? WHERE uuid = UUID_TO_BIN(?);
-    `,
-    [
-      newValues.name,
-      newValues.description,
-      newValues.price,
-      newValues.amount,
-      newValues.storage_location_uuid,
-      newValues.expiry_date,
-      newValues.bottling_date,
-      itemUUID,
-    ],
-  );
-
-  if (result.affectedRows > 0) {
-    return { code: "sp005" }; // success
-  } else {
-    return { code: "ep005" }; // error
-  }
-};
-
-export const deleteProduct = async (uuid) => {
-  const [result] = await pool.query(
-    `UPDATE products SET deleted = 1 WHERE uuid = UUID_TO_BIN(?);`,
-    [uuid],
-  );
-
-  if (result.affectedRows > 0) {
-    return { code: "sp006" }; // success
-  } else {
-    return { code: "ep006" }; // error
-  }
-};

backend/routes/app/database/products.database.ts

@@ -0,0 +1,201 @@
+import mysql, {
+  type ResultSetHeader,
+  type RowDataPacket,
+} from "mysql2/promise";
+import dotenv from "dotenv";
+import { returnErrorCode } from "../../../services/helperFuncs.js";
+import { PRODUCT_ERROR_CODE } from "@stockhome/shared";
+
+dotenv.config();
+
+const pool = mysql.createPool({
+  host: process.env.DB_HOST!,
+  user: process.env.DB_USER!,
+  password: process.env.DB_PASSWORD!,
+  database: process.env.DB_NAME!,
+});
+
+export const newProduct = async (
+  name: string,
+  description: string,
+  price: string,
+  amount: string,
+  storage_location: string,
+  expiry_date: string,
+  bottling_date: string,
+): Promise<
+  boolean | { success: boolean; code: string; data: null; message: string }
+> => {
+  const newPrice = price !== "" ? price : null;
+
+  const [result] = await pool.query<ResultSetHeader>(
+    "INSERT INTO products (name, description, price, amount, storage_location, expiry_date, bottling_date) VALUES (?, ?, ?, ?, UUID_TO_BIN(?), ?, ?)",
+    [
+      name,
+      description,
+      newPrice,
+      amount,
+      storage_location,
+      expiry_date,
+      bottling_date,
+    ],
+  );
+
+  if (result.affectedRows > 0) {
+    return {
+      success: true,
+      code: "SP001",
+      data: null,
+      message: "New Product successfully created.",
+    };
+  }
+
+  return returnErrorCode(PRODUCT_ERROR_CODE.PRODUCT_NOT_CREATED);
+};
+
+export const productDetails = async (uuid: string) => {
+  const [result] = await pool.query<RowDataPacket[]>(
+    `SELECT BIN_TO_UUID(p.uuid) AS uuid,
+                p.name,
+                p.description,
+                p.price,
+                p.amount,
+                BIN_TO_UUID(s.uuid) AS storage_location_uuid,
+                s.name              AS storage_location_name,
+                p.expiry_date,
+                p.bottling_date,
+                p.picture
+         FROM products p
+                  JOIN storage_locations s ON p.storage_location = s.uuid
+         WHERE p.uuid = UUID_TO_BIN(?)`,
+    [uuid],
+  );
+
+  if (result.length > 0) {
+    return {
+      success: true,
+      code: "SP003",
+      data: result[0],
+      message: "Product details successfully loaded.",
+    };
+  }
+
+  return returnErrorCode(PRODUCT_ERROR_CODE.PRODUCT_NOT_FOUND);
+};
+
+export const allProducts = async () => {
+  const [result] = await pool.query<RowDataPacket[]>(`
+        SELECT BIN_TO_UUID(p.uuid) AS uuid,
+               p.name,
+               p.description,
+               p.price,
+               p.amount,
+               BIN_TO_UUID(s.uuid) AS storage_location_uuid,
+               s.name              AS storage_location_name,
+               p.expiry_date,
+               p.bottling_date,
+               p.picture,
+               p.created_at,
+               p.updated_at
+        FROM products p
+                 JOIN storage_locations s ON p.storage_location = s.uuid
+        WHERE p.deleted = 0
+    `);
+
+  if (result.length > 0) {
+    return {
+      success: true,
+      code: "SP002",
+      data: result,
+      message: "All products successfully loaded.",
+    };
+  }
+
+  return returnErrorCode(PRODUCT_ERROR_CODE.NO_PRODUCTS_FOUND);
+};
+
+export const setAmount = async (itemUUID: string, amount: number) => {
+  const [result] = await pool.query<ResultSetHeader>(
+    `UPDATE products
+         SET amount = ?
+         WHERE uuid = UUID_TO_BIN(?)`,
+    [amount, itemUUID],
+  );
+
+  if (result.affectedRows > 0) {
+    return {
+      success: true,
+      code: "SP004",
+      data: null,
+      message: "Amount successfully updated.",
+    };
+  }
+
+  return returnErrorCode(PRODUCT_ERROR_CODE.PRODUCT_AMOUNT_NOT_UPDATED);
+};
+
+export const updateItem = async (
+  itemUUID: string,
+  newValues: {
+    name: string;
+    description: string;
+    price: string;
+    amount: string;
+    storage_location_uuid: string;
+    expiry_date: string;
+    bottling_date: string;
+  },
+) => {
+  const [result] = await pool.query<ResultSetHeader>(
+    `UPDATE products
+         SET name             = ?,
+             description      = ?,
+             price            = ?,
+             amount           = ?,
+             storage_location = UUID_TO_BIN(?),
+             expiry_date      = ?,
+             bottling_date    = ?
+         WHERE uuid = UUID_TO_BIN(?);`,
+    [
+      newValues.name,
+      newValues.description,
+      newValues.price,
+      newValues.amount,
+      newValues.storage_location_uuid,
+      newValues.expiry_date,
+      newValues.bottling_date,
+      itemUUID,
+    ],
+  );
+
+  if (result.affectedRows > 0) {
+    return {
+      success: true,
+      code: "SP005",
+      data: null,
+      message: "Item updated successfully.",
+    };
+  }
+
+  return returnErrorCode(PRODUCT_ERROR_CODE.PRODUCT_NOT_UPDATED);
+};
+
+export const deleteProduct = async (uuid: string) => {
+  const [result] = await pool.query<ResultSetHeader>(
+    `UPDATE products
+         SET deleted = 1
+         WHERE uuid = UUID_TO_BIN(?);`,
+    [uuid],
+  );
+
+  if (result.affectedRows > 0) {
+    return {
+      success: true,
+      code: "SP006",
+      data: null,
+      message: "Product deleted successfully.",
+    };
+  }
+
+  return returnErrorCode(PRODUCT_ERROR_CODE.PRODUCT_NOT_DELETED);
+};

backend/routes/app/database/storage.database.js

@@ -1,63 +0,0 @@
-import mysql from "mysql2";
-import dotenv from "dotenv";
-dotenv.config();
-
-const pool = mysql
-  .createPool({
-    host: process.env.DB_HOST,
-    user: process.env.DB_USER,
-    password: process.env.DB_PASSWORD,
-    database: process.env.DB_NAME,
-  })
-  .promise();
-
-export const allStorages = async () => {
-  const [result] = await pool.query(
-    "SELECT BIN_TO_UUID(uuid) AS uuid, name, description, created_at, updated_at FROM storage_locations;",
-  );
-
-  if (result.length > 0) {
-    return { code: "ss001", data: result };
-  } else {
-    return { code: "es001" };
-  }
-};
-
-export const newStorage = async (name, description) => {
-  const [result] = await pool.query(
-    "INSERT INTO storage_locations (name, description) VALUES (?, ?)",
-    [name, description],
-  );
-
-  if (result.affectedRows > 0) {
-    return { code: "ss002" };
-  } else {
-    return { code: "es002" };
-  }
-};
-
-export const updateStorage = async (uuid, values) => {
-  const [result] = await pool.query(
-    "UPDATE storage_locations SET name = ?, description = ? WHERE uuid = UUID_TO_BIN(?);",
-    [values.name, values.description, uuid],
-  );
-
-  if (result.affectedRows > 0) {
-    return { code: "ss003" };
-  } else {
-    return { code: "es003" };
-  }
-};
-
-export const deleteStorage = async (uuid) => {
-  const [result] = await pool.query(
-    "DELETE FROM storage_locations WHERE uuid = UUID_TO_BIN(?);",
-    [uuid],
-  );
-
-  if (result.affectedRows > 0) {
-    return { code: "ss004" };
-  } else {
-    return { code: "es004" };
-  }
-};

backend/routes/app/database/storage.database.ts

@@ -0,0 +1,90 @@
+import mysql, {
+  type ResultSetHeader,
+  type RowDataPacket,
+} from "mysql2/promise";
+import dotenv from "dotenv";
+import { STORAGE_ERROR_CODE } from "@stockhome/shared";
+import { returnErrorCode } from "../../../services/helperFuncs.js";
+
+dotenv.config();
+
+const pool = mysql.createPool({
+  host: process.env.DB_HOST!,
+  user: process.env.DB_USER!,
+  password: process.env.DB_PASSWORD!,
+  database: process.env.DB_NAME!,
+});
+
+export const allStorages = async () => {
+  const [result] = await pool.query<RowDataPacket[]>(
+    "SELECT BIN_TO_UUID(uuid) AS uuid, name, description, created_at, updated_at FROM storage_locations;",
+  );
+
+  if (result.length > 0) {
+    return {
+      success: true,
+      code: "SS001",
+      data: result,
+      message: "Successfully fetched all storage locations.",
+    };
+  }
+
+  return returnErrorCode(STORAGE_ERROR_CODE.NO_STORAGE_LOCATIONS_FOUND);
+};
+
+export const newStorage = async (name: string, description: string) => {
+  const [result] = await pool.query<ResultSetHeader>(
+    "INSERT INTO storage_locations (name, description) VALUES (?, ?)",
+    [name, description],
+  );
+
+  if (result.affectedRows > 0) {
+    return {
+      success: true,
+      code: "SS002",
+      data: null,
+      message: "Successfully created new storage location.",
+    };
+  }
+
+  return returnErrorCode(STORAGE_ERROR_CODE.STORAGE_NOT_CREATED);
+};
+
+export const updateStorage = async (
+  uuid: string,
+  values: { name: string; description: string },
+) => {
+  const [result] = await pool.query<ResultSetHeader>(
+    "UPDATE storage_locations SET name = ?, description = ? WHERE uuid = UUID_TO_BIN(?);",
+    [values.name, values.description, uuid],
+  );
+
+  if (result.affectedRows > 0) {
+    return {
+      success: true,
+      code: "SS003",
+      data: null,
+      message: "Successfully updated storage location.",
+    };
+  }
+
+  return returnErrorCode(STORAGE_ERROR_CODE.STORAGE_NOT_UPDATED);
+};
+
+export const deleteStorage = async (uuid: string) => {
+  const [result] = await pool.query<ResultSetHeader>(
+    "DELETE FROM storage_locations WHERE uuid = UUID_TO_BIN(?);",
+    [uuid],
+  );
+
+  if (result.affectedRows > 0) {
+    return {
+      success: true,
+      code: "SS004",
+      data: null,
+      message: "Successfully deleted storage location.",
+    };
+  }
+
+  return returnErrorCode(STORAGE_ERROR_CODE.STORAGE_NOT_DELETED);
+};

backend/routes/app/database/users.database.js

@@ -1,91 +0,0 @@
-import mysql from "mysql2";
-import dotenv from "dotenv";
-dotenv.config();
-
-const pool = mysql
-  .createPool({
-    host: process.env.DB_HOST,
-    user: process.env.DB_USER,
-    password: process.env.DB_PASSWORD,
-    database: process.env.DB_NAME,
-  })
-  .promise();
-
-export const findUser = async (username, password) => {
-  const [result] = await pool.query(
-    "SELECT BIN_TO_UUID(uuid) AS uuid, username, first_name, last_name, email, is_admin, is_active, last_login FROM users WHERE username = ? AND password = ?;",
-    [username, password],
-  );
-
-  if (result.length <= 0) {
-    return { code: "eu001" }; // username or password is wrong
-  }
-
-  if (!result[0].is_active) {
-    return { code: "eu002" }; // user is deactivated
-  }
-
-  return { code: "su001", data: result[0] }; // user found
-};
-
-export const loginUser = async (username) => {
-  const [result] = await pool.query(
-    "UPDATE users SET last_login = NOW() WHERE username = ?;",
-    [username],
-  );
-
-  if (result.affectedRows > 0) {
-    return { code: "su002" };
-  } else {
-    return { code: "eu003" };
-  }
-};
-
-export const updateSettings = async (payload) => {
-  const appName = payload["app-name"];
-  const currency = payload.currency;
-
-  const [result] = await pool.query(
-    `UPDATE app_settings
-     SET value = CASE name
-       WHEN "app-name" THEN ?
-       WHEN "currency" THEN ?
-       ELSE value
-     END
-     WHERE name IN ("app-name", "currency");`,
-    [appName, currency],
-  );
-
-  if (result.affectedRows > 0) {
-    return { code: "su003" };
-  } else {
-    return { code: "eu004" };
-  }
-};
-
-export const getSettings = async () => {
-  const [result] = await pool.query(`SELECT * FROM app_settings;`);
-
-  if (result.length > 0) {
-    return { code: "su004", result };
-  } else {
-    return { code: "eu005" };
-  }
-};
-
-export const changePassword = async (
-  username,
-  currentPasswordUser,
-  newPassword,
-) => {
-  const [result] = await pool.query(
-    `UPDATE users SET password = ? WHERE username = ? AND password = ?;`,
-    [newPassword, username, currentPasswordUser],
-  );
-
-  if (result.affectedRows > 0) {
-    return { code: "su005" };
-  } else {
-    return { code: "eu006" };
-  }
-};

backend/routes/app/database/users.database.ts

@@ -0,0 +1,135 @@
+import mysql, {
+  type ResultSetHeader,
+  type RowDataPacket,
+} from "mysql2/promise";
+import dotenv from "dotenv";
+import { GENERAL_ERROR_CODE, USER_ERROR_CODE } from "@stockhome/shared";
+import { returnErrorCode } from "../../../services/helperFuncs.js";
+import type { AuthTokenPayload } from "../../../services/tokenService";
+
+dotenv.config();
+
+const pool = mysql.createPool({
+  host: process.env.DB_HOST!,
+  user: process.env.DB_USER!,
+  password: process.env.DB_PASSWORD!,
+  database: process.env.DB_NAME!,
+});
+
+export const findUser = async (username: string, password: string) => {
+  const [result] = await pool.query<RowDataPacket[]>(
+    "SELECT BIN_TO_UUID(uuid) AS uuid, username, first_name, last_name, email, is_admin, is_active, last_login FROM users WHERE username = ? AND password = ?;",
+    [username, password],
+  );
+
+  const userRow = result[0];
+
+  if (!userRow) {
+    return returnErrorCode(USER_ERROR_CODE.WRONG_USERNAME_PASSWORD);
+  }
+
+  // Cast DB row to AuthTokenPayload for token generation / typing
+  const user = userRow as unknown as AuthTokenPayload;
+
+  if (!user.is_active) {
+    return returnErrorCode(USER_ERROR_CODE.USER_IS_DEACTIVATED);
+  }
+
+  return {
+    success: true,
+    code: "SU001",
+    data: user,
+    message: "Successfully found user.",
+  };
+};
+
+export const loginUser = async (username: string) => {
+  const [result] = await pool.query<ResultSetHeader>(
+    "UPDATE users SET last_login = NOW() WHERE username = ?;",
+    [username],
+  );
+
+  if (result.affectedRows > 0) {
+    return {
+      success: true,
+      code: "SU002",
+      data: null,
+      message: "Successfully logged in user.",
+    };
+  } else {
+    return returnErrorCode(GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR);
+  }
+};
+
+export const updateSettings = async (payload: {
+  "app-name": string;
+  currency: string;
+}) => {
+  const appName = payload["app-name"];
+  const currency = payload.currency;
+
+  const [result] = await pool.query<ResultSetHeader>(
+    `UPDATE app_settings
+         SET value = CASE name
+                         WHEN "app-name" THEN ?
+                         WHEN "currency" THEN ?
+                         ELSE value
+             END
+         WHERE name IN ("app-name", "currency");`,
+    [appName, currency],
+  );
+
+  if (result.affectedRows > 0) {
+    return {
+      success: true,
+      code: "SU003",
+      data: null,
+      message: "Successfully updated settings.",
+    };
+  } else {
+    return returnErrorCode(GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR);
+  }
+};
+
+export const getSettings = async () => {
+  const [result] = await pool.query<RowDataPacket[]>(
+    `SELECT *
+         FROM app_settings;`,
+  );
+
+  if (result.length > 0) {
+    return {
+      success: true,
+      code: "SU004",
+      data: result,
+      message: "Successfully fetched settings.",
+    };
+  } else {
+    return returnErrorCode(GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR);
+  }
+};
+
+export const changePassword = async (
+  username: string,
+  currentPasswordUser: string,
+  newPassword: string,
+) => {
+  const [result] = await pool.query<ResultSetHeader>(
+    `UPDATE users
+         SET password = ?
+         WHERE username = ?
+           AND password = ?;`,
+    [newPassword, username, currentPasswordUser],
+  );
+
+  if (result.affectedRows > 0) {
+    return {
+      success: true,
+      code: "SU005",
+      data: null,
+      message: "Successfully fetched settings.",
+    };
+  } else {
+    return returnErrorCode(USER_ERROR_CODE.PASSWORD_CHANGE_FAILED);
+  }
+};

backend/routes/app/products.route.js

@@ -1,180 +0,0 @@
-import express from "express";
-import dotenv from "dotenv";
-import { authenticate } from "../../services/tokenService.js";
-import {
-  allProducts,
-  deleteProduct,
-  newProduct,
-  productDetails,
-  setAmount,
-  updateItem,
-} from "./database/products.database.js";
-dotenv.config();
-const router = express.Router();
-
-router.post("/new-product", authenticate, async (req, res) => {
-  const {
-    name,
-    description,
-    price,
-    amount,
-    storage_location,
-    expiry_date,
-    bottling_date,
-  } = req.body;
-
-  const result = await newProduct(
-    name,
-    description,
-    price,
-    amount,
-    storage_location,
-    expiry_date,
-    bottling_date,
-  );
-
-  if (result.code === "ep001") {
-    res.status(406).json({
-      success: false,
-      code: "ep001",
-      data: null,
-      message: "Error while creating product",
-    });
-  }
-
-  if (result.code === "sp001") {
-    res.status(201).json({
-      success: true,
-      code: "sp001",
-      data: null,
-      message: "",
-    });
-  }
-});
-
-router.get("/all-products", authenticate, async (req, res) => {
-  const result = await allProducts();
-
-  if (result.code === "ep002") {
-    res.status(406).json({
-      success: false,
-      code: "ep002",
-      data: null,
-      message: "Error while fetching products",
-    });
-  }
-
-  if (result.code === "sp002") {
-    res.status(200).json({
-      success: true,
-      code: "sp002",
-      data: result.data,
-      message: "",
-    });
-  }
-});
-
-router.get("/view", async (req, res) => {
-  const uuid = req.query.uuid;
-
-  const result = await productDetails(uuid);
-
-  if (result.code === "ep003") {
-    res.status(406).json({
-      success: false,
-      code: "ep003",
-      data: null,
-      message: "Error while fetching product",
-    });
-  }
-
-  if (result.code === "sp003") {
-    res.status(200).json({
-      success: true,
-      code: "sp003",
-      data: result.data,
-      message: "",
-    });
-  }
-});
-
-router.put("/mutate/set-amount", authenticate, async (req, res) => {
-  const amount = req.query.amount;
-  const itemUUID = req.query.item;
-
-  const result = await setAmount(itemUUID, amount);
-
-  if (result.code === "ep004") {
-    res.status(406).json({
-      success: false,
-      code: "ep004",
-      data: null,
-      message: "Error while updating product amount",
-    });
-  }
-
-  if (result.code === "sp004") {
-    res.status(200).json({
-      success: true,
-      code: "sp004",
-      data: null,
-      message: "",
-    });
-  }
-});
-
-router.post("/mutate/update-item", async (req, res) => {
-  const itemUUID = req.query.item;
-  const newValues = req.body;
-
-  const result = await updateItem(itemUUID, newValues);
-
-  if (result.code === "ep005") {
-    res.status(406).json({
-      success: false,
-      code: "ep005",
-      data: null,
-      message: "Error while updating product",
-    });
-  }
-
-  if (result.code === "sp005") {
-    res.status(200).json({
-      success: true,
-      code: "sp005",
-      data: null,
-      message: "",
-    });
-  }
-});
-
-router.post("/delete-selection", authenticate, async (req, res) => {
-  let isError = false;
-  const uuidArray = req.body;
-
-  for (const uuid of uuidArray) {
-    const response = await deleteProduct(uuid);
-    if (response.code === "ep006" || !response) {
-      isError = true;
-      break;
-    }
-  }
-
-  if (isError === false) {
-    res.status(202).json({
-      success: true,
-      code: "sp006",
-      data: null,
-      message: "",
-    });
-  } else {
-    res.status(500).json({
-      success: false,
-      code: "ep006",
-      data: null,
-      message: "",
-    });
-  }
-});
-
-export default router;

backend/routes/app/products.route.ts

@@ -0,0 +1,284 @@
+import express from "express";
+import dotenv from "dotenv";
+import { authenticate } from "../../services/tokenService";
+import {
+  allProducts,
+  deleteProduct,
+  newProduct,
+  productDetails,
+  setAmount,
+  updateItem,
+} from "./database/products.database";
+import { GENERAL_ERROR_CODE, PRODUCT_ERROR_CODE } from "@stockhome/shared";
+
+dotenv.config();
+const router = express.Router();
+
+router.post("/new-product", authenticate, async (req, res) => {
+  const {
+    name,
+    description,
+    price,
+    amount,
+    storage_location,
+    expiry_date,
+    bottling_date,
+  } = req.body;
+
+  if (!name) {
+    return res.status(400).json({
+      success: false,
+      code: PRODUCT_ERROR_CODE.INVALID_REQUEST_BODY[0],
+      data: null,
+      message: PRODUCT_ERROR_CODE.INVALID_REQUEST_BODY[1],
+    });
+  }
+
+  const result = await newProduct(
+    name,
+    description,
+    price,
+    amount,
+    storage_location,
+    expiry_date,
+    bottling_date,
+  );
+
+  if (!result || typeof result !== "object") {
+    return res.status(500).json({
+      success: false,
+      code: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+      data: null,
+      message: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+    });
+  }
+
+  if (result.code === "SP001") {
+    return res.status(201).json({
+      success: true,
+      code: result.code,
+      data: null,
+      message: result.message,
+    });
+  }
+
+  return res.status(500).json({
+    success: false,
+    code: result.code || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+    data: null,
+    message: result.message || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+  });
+});
+
+router.get("/all-products", authenticate, async (req, res) => {
+  const result = await allProducts();
+
+  if (!result) {
+    return res.status(500).json({
+      success: false,
+      code: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+      data: null,
+      message: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+    });
+  }
+
+  if (result.code === "SP002") {
+    return res.status(200).json({
+      success: true,
+      code: result.code,
+      data: result.data,
+      message: result.message,
+    });
+  }
+
+  if (result.code === PRODUCT_ERROR_CODE.NO_PRODUCTS_FOUND[0]) {
+    return res.status(404).json({
+      success: false,
+      code: result.code,
+      data: null,
+      message: result.message,
+    });
+  }
+
+  return res.status(500).json({
+    success: false,
+    code: result.code || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+    data: null,
+    message: result.message || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+  });
+});
+
+router.get("/view", async (req, res) => {
+  const uuid = req.query.uuid;
+
+  if (typeof uuid !== "string") {
+    return res.status(400).json({
+      success: false,
+      code: PRODUCT_ERROR_CODE.INVALID_PARAMETERS[0],
+      data: null,
+      message: PRODUCT_ERROR_CODE.INVALID_PARAMETERS[1],
+    });
+  }
+
+  const result = await productDetails(uuid);
+
+  if (!result) {
+    return res.status(500).json({
+      success: false,
+      code: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+      data: null,
+      message: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+    });
+  }
+
+  if (result.code === "SP003") {
+    return res.status(200).json({
+      success: true,
+      code: result.code,
+      data: result.data,
+      message: result.message,
+    });
+  }
+
+  if (result.code === PRODUCT_ERROR_CODE.PRODUCT_NOT_FOUND[0]) {
+    return res.status(404).json({
+      success: false,
+      code: result.code,
+      data: null,
+      message: result.message,
+    });
+  }
+
+  return res.status(500).json({
+    success: false,
+    code: result.code || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+    data: null,
+    message: result.message || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+  });
+});
+
+router.put("/mutate/set-amount", authenticate, async (req, res) => {
+  const amount = req.query.amount;
+  const itemUUID = req.query.item;
+
+  if (typeof itemUUID !== "string" || typeof amount !== "number") {
+    return res.status(400).json({
+      success: false,
+      code: PRODUCT_ERROR_CODE.INVALID_PARAMETERS[0],
+      data: null,
+      message: PRODUCT_ERROR_CODE.INVALID_PARAMETERS[1],
+    });
+  }
+
+  const result = await setAmount(itemUUID, amount);
+
+  if (!result) {
+    return res.status(500).json({
+      success: false,
+      code: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+      data: null,
+      message: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+    });
+  }
+
+  if (result.code === "SP004") {
+    return res.status(200).json({
+      success: true,
+      code: result.code,
+      data: null,
+      message: result.message,
+    });
+  }
+
+  return res.status(500).json({
+    success: false,
+    code: result.code || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+    data: null,
+    message: result.message || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+  });
+});
+
+router.post("/mutate/update-item", authenticate, async (req, res) => {
+  const itemUUID = req.query.item;
+  const newValues = req.body;
+
+  if (typeof itemUUID !== "string" || !newValues) {
+    return res.status(400).json({
+      success: false,
+      code: PRODUCT_ERROR_CODE.INVALID_PARAMETERS[0],
+      data: null,
+      message: PRODUCT_ERROR_CODE.INVALID_PARAMETERS[1],
+    });
+  }
+
+  const result = await updateItem(itemUUID, newValues);
+
+  if (!result) {
+    return res.status(500).json({
+      success: false,
+      code: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+      data: null,
+      message: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+    });
+  }
+
+  if (result.code === "SP005") {
+    return res.status(200).json({
+      success: true,
+      code: result.code,
+      data: null,
+      message: result.message,
+    });
+  }
+
+  return res.status(500).json({
+    success: false,
+    code: result.code || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+    data: null,
+    message: result.message || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+  });
+});
+
+router.post("/delete-selection", authenticate, async (req, res) => {
+  const uuidArray = req.body;
+
+  if (!Array.isArray(uuidArray) || uuidArray.length === 0) {
+    return res.status(400).json({
+      success: false,
+      code: PRODUCT_ERROR_CODE.INVALID_REQUEST_BODY[0],
+      data: null,
+      message: PRODUCT_ERROR_CODE.INVALID_REQUEST_BODY[1],
+    });
+  }
+
+  for (const uuid of uuidArray) {
+    const response = await deleteProduct(uuid);
+
+    if (!response) {
+      return res.status(500).json({
+        success: false,
+        code: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+        data: null,
+        message: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+      });
+    }
+
+    if (response.code !== "SP006") {
+      return res.status(500).json({
+        success: false,
+        code: response.code || PRODUCT_ERROR_CODE.PRODUCT_NOT_DELETED[0],
+        data: null,
+        message: response.message || PRODUCT_ERROR_CODE.PRODUCT_NOT_DELETED[1],
+      });
+    }
+  }
+
+  return res.status(202).json({
+    success: true,
+    code: "SP006",
+    data: null,
+    message: "All selected products deleted successfully.",
+  });
+});
+
+export default router;

backend/routes/app/storage.route.js

@@ -1,124 +0,0 @@
-import express from "express";
-import dotenv from "dotenv";
-import { authenticate } from "../../services/tokenService.js";
-import {
-  allStorages,
-  newStorage,
-  updateStorage,
-  deleteStorage,
-} from "./database/storage.database.js";
-dotenv.config();
-const router = express.Router();
-
-router.get("/all-storages", authenticate, async (req, res) => {
-  const result = await allStorages();
-
-  if (result.code === "es001") {
-    res.status(500).json({
-      success: false,
-      code: "es001",
-      data: null,
-      message: "unexpected server error",
-    });
-  }
-
-  if (result.code === "ss001") {
-    res.status(200).json({
-      success: true,
-      code: "ss001",
-      data: result.data,
-      message: "",
-    });
-  }
-});
-
-router.post("/new-storage", authenticate, async (req, res) => {
-  const { name, description } = req.body;
-
-  let desc = description;
-
-  if (!name) {
-    res.status(400).json({
-      success: false,
-      code: "es000",
-      data: null,
-      message: "invalid request body",
-    });
-    return;
-  }
-
-  if (description == "") {
-    desc = null;
-  }
-
-  const result = await newStorage(name, desc);
-
-  if (result.code === "es002") {
-    res.status(500).json({
-      success: false,
-      code: "es002",
-      data: null,
-      message: "unexpected server error",
-    });
-  }
-
-  if (result.code === "ss002") {
-    res.status(201).json({
-      success: true,
-      code: "ss002",
-      data: null,
-      message: "",
-    });
-  }
-});
-
-router.post("/update-storage", authenticate, async (req, res) => {
-  const storageUUID = req.query.storageUUID;
-  const values = req.body;
-
-  const result = await updateStorage(storageUUID, values);
-
-  if (result.code === "es003") {
-    res.status(500).json({
-      success: false,
-      code: "es003",
-      data: null,
-      message: "unexpected server error",
-    });
-  }
-
-  if (result.code === "ss003") {
-    res.status(201).json({
-      success: true,
-      code: "ss003",
-      data: null,
-      message: "",
-    });
-  }
-});
-
-router.delete("/delete", authenticate, async (req, res) => {
-  const uuid = req.query.uuid;
-
-  const result = await deleteStorage(uuid);
-
-  if (result.code === "es004") {
-    res.status(500).json({
-      success: false,
-      code: "es004",
-      data: null,
-      message: "unexpected server error",
-    });
-  }
-
-  if (result.code === "ss004") {
-    res.status(201).json({
-      success: true,
-      code: "ss004",
-      data: null,
-      message: "",
-    });
-  }
-});
-
-export default router;

backend/routes/app/storage.route.ts

@@ -0,0 +1,189 @@
+import express from "express";
+import dotenv from "dotenv";
+import { authenticate } from "../../services/tokenService";
+import {
+  allStorages,
+  deleteStorage,
+  newStorage,
+  updateStorage,
+} from "./database/storage.database";
+import { GENERAL_ERROR_CODE, STORAGE_ERROR_CODE } from "@stockhome/shared";
+
+dotenv.config();
+const router = express.Router();
+
+router.get("/all-storages", authenticate, async (req, res) => {
+  const result = await allStorages();
+
+  if (!result) {
+    return res.status(500).json({
+      success: false,
+      code: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR,
+      data: null,
+      message: "Unknown error",
+    });
+  }
+
+  if (result.code === "SS001") {
+    return res.status(200).json({
+      success: true,
+      code: result.code,
+      data: result.data,
+      message: result.message,
+    });
+  }
+
+  if (result.code === STORAGE_ERROR_CODE.NO_STORAGE_LOCATIONS_FOUND[0]) {
+    return res.status(404).json({
+      success: false,
+      code: result.code,
+      data: null,
+      message: result.message,
+    });
+  }
+
+  return res.status(500).json({
+    success: false,
+    code: result.code || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+    data: null,
+    message: result.message || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+  });
+});
+
+router.post("/new-storage", authenticate, async (req, res) => {
+  const { name, description } = req.body;
+
+  let desc = description;
+
+  if (!name) {
+    return res.status(400).json({
+      success: false,
+      code: STORAGE_ERROR_CODE.INVALID_REQUEST_BODY[0],
+      data: null,
+      message: STORAGE_ERROR_CODE.INVALID_REQUEST_BODY[1],
+    });
+  }
+
+  if (description == "") {
+    desc = null;
+  }
+
+  const result = await newStorage(name, desc);
+
+  if (!result) {
+    return res.status(500).json({
+      success: false,
+      code: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+      data: null,
+      message: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+    });
+  }
+
+  if (result.code === "SS002") {
+    return res.status(201).json({
+      success: true,
+      code: result.code,
+      data: null,
+      message: result.message,
+    });
+  }
+
+  return res.status(500).json({
+    success: false,
+    code: result.code || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+    data: null,
+    message: result.message || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+  });
+});
+
+router.post("/update-storage", authenticate, async (req, res) => {
+  const storageUUID = req.query.storageUUID;
+  const values = req.body;
+
+  if (!storageUUID || !values) {
+    return res.status(400).json({
+      success: false,
+      code: STORAGE_ERROR_CODE.INVALID_PARAMETERS[0],
+      data: null,
+      message: STORAGE_ERROR_CODE.INVALID_PARAMETERS[1],
+    });
+  }
+
+  if (typeof storageUUID !== "string") {
+    return res.status(400).json({
+      success: false,
+      code: STORAGE_ERROR_CODE.INVALID_PARAMETERS[0],
+      data: null,
+      message: STORAGE_ERROR_CODE.INVALID_PARAMETERS[1],
+    });
+  }
+
+  const result = await updateStorage(storageUUID, values);
+
+  if (!result) {
+    return res.status(500).json({
+      success: false,
+      code: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+      data: null,
+      message: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+    });
+  }
+
+  if (result.code === "SS003") {
+    return res.status(201).json({
+      success: true,
+      code: result.code,
+      data: null,
+      message: result.message,
+    });
+  }
+
+  return res.status(500).json({
+    success: false,
+    code: result.code || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+    data: null,
+    message: result.message || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+  });
+});
+
+router.delete("/delete", authenticate, async (req, res) => {
+  const uuid = req.query.uuid;
+
+  if (typeof uuid !== "string") {
+    return res.status(400).json({
+      success: false,
+      code: STORAGE_ERROR_CODE.INVALID_PARAMETERS[0],
+      data: null,
+      message: STORAGE_ERROR_CODE.INVALID_PARAMETERS[1],
+    });
+  }
+
+  const result = await deleteStorage(uuid);
+
+  if (!result) {
+    return res.status(500).json({
+      success: false,
+      code: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+      data: null,
+      message: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+    });
+  }
+
+  if (result.code === "SS004") {
+    return res.status(201).json({
+      success: true,
+      code: result.code,
+      data: null,
+      message: result.message,
+    });
+  }
+
+  return res.status(500).json({
+    success: false,
+    code: result.code || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+    data: null,
+    message: result.message || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+  });
+});
+
+export default router;

backend/routes/app/users.route.js

@@ -1,135 +0,0 @@
-import express from "express";
-import dotenv from "dotenv";
-import { authenticate, generateToken } from "../../services/tokenService.js";
-import {
-  findUser,
-  loginUser,
-  updateSettings,
-  getSettings,
-  changePassword,
-} from "./database/users.database.js";
-dotenv.config();
-const router = express.Router();
-
-router.post("/verify-token", authenticate, async (req, res) => {
-  res.sendStatus(200);
-});
-
-router.post("/update-app-settings", authenticate, async (req, res) => {
-  const appName = req.body.appName;
-  const currency = req.body.currency;
-
-  const result = await updateSettings(req.body);
-
-  if (result.code === "su003") {
-    res.status(201).json({
-      success: true,
-      code: "su003",
-      data: result.data,
-      message: null,
-    });
-  }
-
-  if (result.code === "eu004") {
-    res.status(500).json({
-      success: false,
-      code: "eu004",
-      data: null,
-      message: "Unexpected server error",
-    });
-  }
-});
-
-router.get("/settings", authenticate, async (req, res) => {
-  const result = await getSettings();
-
-  if (result.code === "su004") {
-    res.status(201).json({
-      success: true,
-      code: "su004",
-      data: result.result,
-      message: null,
-    });
-  }
-
-  if (result.code === "eu005") {
-    res.status(500).json({
-      success: false,
-      code: "eu005",
-      data: null,
-      message: "Unexpected server error",
-    });
-  }
-});
-
-router.post("/login", async (req, res) => {
-  const username = req.body.username;
-  const password = req.body.password;
-
-  const result = await findUser(username, password);
-
-  if (result.code === "eu001") {
-    res.status(404).json({
-      success: false,
-      code: "eu001",
-      data: null,
-      message: "username oder password is wrong",
-    });
-  }
-
-  if (result.code === "eu002") {
-    res.status(403).json({
-      success: false,
-      code: "eu002",
-      data: null,
-      message: "user is deactivated",
-    });
-  }
-
-  if (result.code === "su001") {
-    const token = await generateToken(result.data);
-    const login = await loginUser(result.data.username);
-
-    if (login.code === "eu003") {
-      res.status(500).json({
-        success: false,
-        code: "eu003",
-        data: null,
-        message: "Unexpected server error. Please contact system admin.",
-      });
-    }
-
-    res.status(202).json({
-      success: true,
-      code: "su001",
-      data: {
-        token,
-      },
-      message: "User token generated successfully",
-    });
-  }
-});
-
-router.post("/change-password", authenticate, async (req, res) => {
-  const currentPassword = req.body.currentPassword;
-  const newPassword = req.body.newPassword;
-  const username = req.user.username;
-
-  const result = await changePassword(username, currentPassword, newPassword);
-
-  if (result.code === "su005") {
-    res.status(202).json({
-      success: true,
-      code: result.code,
-    });
-  }
-
-  if (result.code === "eu006") {
-    res.status(406).json({
-      success: false,
-      code: result.code,
-    });
-  }
-});
-
-export default router;

backend/routes/app/users.route.ts

@@ -0,0 +1,251 @@
+import express from "express";
+import dotenv from "dotenv";
+import { authenticate, generateToken } from "../../services/tokenService";
+import {
+  changePassword,
+  findUser,
+  getSettings,
+  loginUser,
+  updateSettings,
+} from "./database/users.database";
+import { GENERAL_ERROR_CODE, USER_ERROR_CODE } from "@stockhome/shared";
+
+dotenv.config();
+const router = express.Router();
+
+router.post("/verify-token", authenticate, async (req, res) => {
+  res.sendStatus(200);
+});
+
+router.post("/update-app-settings", authenticate, async (req, res) => {
+  const values = req.body;
+
+  if (!values || Object.keys(values).length === 0) {
+    return res.status(400).json({
+      success: false,
+      code: USER_ERROR_CODE.INVALID_REQUEST_BODY[0],
+      data: null,
+      message: USER_ERROR_CODE.INVALID_REQUEST_BODY[1],
+    });
+  }
+
+  const result = await updateSettings(values);
+
+  if (!result) {
+    return res.status(500).json({
+      success: false,
+      code: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+      data: null,
+      message: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+    });
+  }
+
+  if (result.code === "SU003") {
+    return res.status(201).json({
+      success: true,
+      code: result.code,
+      data: result.data,
+      message: result.message,
+    });
+  }
+
+  return res.status(500).json({
+    success: false,
+    code: result.code || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+    data: null,
+    message: result.message || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+  });
+});
+
+router.get("/settings", authenticate, async (req, res) => {
+  const result = await getSettings();
+
+  if (!result) {
+    return res.status(500).json({
+      success: false,
+      code: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+      data: null,
+      message: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+    });
+  }
+
+  if (result.code === "SU004") {
+    return res.status(200).json({
+      success: true,
+      code: result.code,
+      data: result.data,
+      message: result.message,
+    });
+  }
+
+  return res.status(500).json({
+    success: false,
+    code: result.code || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+    data: null,
+    message: result.message || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+  });
+});
+
+router.post("/login", async (req, res) => {
+  const username = req.body.username;
+  const password = req.body.password;
+
+  if (!username || !password) {
+    return res.status(400).json({
+      success: false,
+      code: USER_ERROR_CODE.INVALID_REQUEST_BODY[0],
+      data: null,
+      message: USER_ERROR_CODE.INVALID_REQUEST_BODY[1],
+    });
+  }
+
+  const result = await findUser(username, password);
+
+  if (!result) {
+    return res.status(500).json({
+      success: false,
+      code: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+      data: null,
+      message: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+    });
+  }
+
+  if (result.code === USER_ERROR_CODE.WRONG_USERNAME_PASSWORD[0]) {
+    return res.status(404).json({
+      success: false,
+      code: result.code,
+      data: null,
+      message: result.message,
+    });
+  }
+
+  if (result.code === USER_ERROR_CODE.USER_IS_DEACTIVATED[0]) {
+    return res.status(403).json({
+      success: false,
+      code: result.code,
+      data: null,
+      message: result.message,
+    });
+  }
+
+  if (result.code === "SU001") {
+    if (!result.data) {
+      return res.status(500).json({
+        success: false,
+        code: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+        data: null,
+        message: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+      });
+    }
+
+    const token = await generateToken(result.data);
+
+    if (!token) {
+      return res.status(500).json({
+        success: false,
+        code: USER_ERROR_CODE.TOKEN_GENERATION_FAILED[0],
+        data: null,
+        message: USER_ERROR_CODE.TOKEN_GENERATION_FAILED[1],
+      });
+    }
+
+    if (!result.data) {
+      return res.status(500).json({
+        success: false,
+        code: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+        data: null,
+        message: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+      });
+    }
+
+    const login = await loginUser(result.data.username);
+
+    if (!login) {
+      return res.status(500).json({
+        success: false,
+        code: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+        data: null,
+        message: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+      });
+    }
+
+    if (login.code !== "SU002") {
+      return res.status(500).json({
+        success: false,
+        code: login.code || USER_ERROR_CODE.LOGIN_FAILED[0],
+        data: null,
+        message: login.message || USER_ERROR_CODE.LOGIN_FAILED[1],
+      });
+    }
+
+    return res.status(202).json({
+      success: true,
+      code: "SU001",
+      data: {
+        token,
+      },
+      message: "User token generated successfully",
+    });
+  }
+
+  return res.status(500).json({
+    success: false,
+    code: result.code || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+    data: null,
+    message: result.message || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+  });
+});
+
+router.post("/change-password", authenticate, async (req, res) => {
+  const currentPassword = req.body.currentPassword;
+  const newPassword = req.body.newPassword;
+
+  if (!req.user) {
+    return res.status(500).json({
+      success: false,
+      code: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+      data: null,
+      message: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+    });
+  }
+
+  const username = req.user.username;
+
+  if (!currentPassword || !newPassword) {
+    return res.status(400).json({
+      success: false,
+      code: USER_ERROR_CODE.INVALID_REQUEST_BODY[0],
+      data: null,
+      message: USER_ERROR_CODE.INVALID_REQUEST_BODY[1],
+    });
+  }
+
+  const result = await changePassword(username, currentPassword, newPassword);
+
+  if (!result) {
+    return res.status(500).json({
+      success: false,
+      code: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+      data: null,
+      message: GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+    });
+  }
+
+  if (result.code === "SU005") {
+    return res.status(202).json({
+      success: true,
+      code: result.code,
+      data: null,
+      message: result.message,
+    });
+  }
+
+  return res.status(500).json({
+    success: false,
+    code: result.code || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[0],
+    data: null,
+    message: result.message || GENERAL_ERROR_CODE.UNEXPECTED_SERVER_ERROR[1],
+  });
+});
+
+export default router;

backend/scripts/copy-assets.cjs

@@ -0,0 +1,17 @@
+// scripts/copy-assets.cjs
+const fs = require("fs");
+const path = require("path");
+
+const rootDir = path.join(__dirname, "..");
+const distDir = path.join(rootDir, "dist");
+
+const sqlFiles = fs
+  .readdirSync(rootDir)
+  .filter((f) => f.endsWith(".scheme.sql"));
+
+for (const file of sqlFiles) {
+  const srcPath = path.join(rootDir, file);
+  const distPath = path.join(distDir, file);
+  fs.copyFileSync(srcPath, distPath);
+  console.log(`Copied ${srcPath} -> ${distPath}`);
+}

backend/server.js

@@ -1,138 +0,0 @@
-import express from "express";
-import cors from "cors";
-import dotenv from "dotenv";
-import mysql from "mysql2";
-import { readFile } from "fs/promises";
-dotenv.config();
-const app = express();
-app.set("view engine", "ejs");
-
-const port = 8004;
-
-app.use(cors());
-app.use(express.json());
-app.use(express.urlencoded({ extended: true }));
-
-const pool = mysql
-  .createPool({
-    host: process.env.DB_HOST,
-    user: process.env.DB_USER,
-    password: process.env.DB_PASSWORD,
-    database: process.env.DB_NAME,
-  })
-  .promise();
-
-// frontend routes
-import userRouter from "./routes/app/users.route.js";
-app.use("/users", userRouter);
-
-import productRouter from "./routes/app/products.route.js";
-app.use("/products", productRouter);
-
-import storageRouter from "./routes/app/storage.route.js";
-app.use("/storage", storageRouter);
-
-app.listen(port, () => {
-  runStartup(port);
-});
-
-// Startup code
-const runStartup = async (port) => {
-  // Check if database is configured; create schema if app_settings is missing.
-  let firstStartupValue = null;
-  try {
-    const [firstResponse] = await pool.query(
-      `SELECT value FROM app_settings WHERE name = "first-startup";`,
-    );
-    firstStartupValue = firstResponse[0]?.value ?? null;
-  } catch (err) {
-    if (err?.code !== "ER_NO_SUCH_TABLE") {
-      throw err;
-    }
-  }
-
-  if (firstStartupValue !== "false") {
-    const schemaPath = new URL("./database.scheme.sql", import.meta.url);
-    const schemaSql = await readFile(schemaPath, "utf8");
-    const statements = schemaSql
-      .split(";")
-      .map((statement) => statement.trim())
-      .filter((statement) => statement.length > 0);
-
-    for (const statement of statements) {
-      await pool.query(statement);
-    }
-
-    // create admin credentials
-    const [result] = await pool.query(
-      `SELECT value FROM app_settings WHERE name = "first-startup";`,
-    );
-
-    if (result[0]?.value === "true") {
-      const insertResult = await insertFirstData();
-
-      if (insertResult.affectedRows > 0) {
-        // print out admin credentials
-        console.log("Successfully created admin user!");
-        console.log("Username: admin");
-        console.log("Password: admin");
-
-        // Set startup variable to true if scheme insert was successfull
-        const [scndResponse] = await pool.query(
-          `UPDATE app_settings SET value = "false" WHERE name = "first-startup";`,
-        );
-
-        if (scndResponse.affectedRows > 0) {
-          console.log("Database settet up successfully!");
-        } else {
-          console.error("There was an error while setting up the database!");
-        }
-      } else {
-        console.error("Error while creating admin user.");
-      }
-    }
-  }
-
-  console.log("Everything is settet up successfully!");
-  console.log(`Backend is running on http://localhost:${port}`);
-};
-
-const insertFirstData = async () => {
-  const [insertResult] = await pool.query(
-    `INSERT INTO users (username, first_name, last_name, email, password, is_admin) VALUES ("admin", "admin", "admin", "admin@example.com", "admin", 1)`,
-  );
-
-  await pool.query(
-    `INSERT INTO storage_locations (name, description) VALUES (?, ?);`,
-    ["Default Storage", "Initial storage location"],
-  );
-
-  const [storageRows] = await pool.query(
-    `SELECT uuid FROM storage_locations WHERE name = ? LIMIT 1;`,
-    ["Default Storage"],
-  );
-
-  const storageUuid = storageRows[0]?.uuid ?? null;
-  if (storageUuid) {
-    await pool.query(
-      `INSERT INTO products (name, description, price, amount, storage_location, picture) VALUES (?, ?, ?, ?, ?, ?);`,
-      [
-        "Welcome Product",
-        "Your first item in Stockhome",
-        "0.00",
-        1,
-        storageUuid,
-        null,
-      ],
-    );
-  }
-
-  console.log("Welcome product is ready...")
-  return insertResult;
-};
-
-// error handling code
-app.use((err, req, res, next) => {
-  console.error(err.stack);
-  res.status(500).send("Something broke!");
-});

backend/server.ts

@@ -0,0 +1,151 @@
+import type { NextFunction, Request, Response } from "express";
+import express from "express";
+import cors from "cors";
+import dotenv from "dotenv";
+import mysql, { type ResultSetHeader, type RowDataPacket } from "mysql2";
+import { readFile } from "fs/promises"; // frontend routes
+import userRouter from "./routes/app/users.route";
+import productRouter from "./routes/app/products.route";
+import storageRouter from "./routes/app/storage.route";
+import path from "node:path";
+
+dotenv.config();
+const app = express();
+app.set("view engine", "ejs");
+
+const port = 8004;
+
+app.use(cors());
+app.use(express.json());
+app.use(express.urlencoded({ extended: true }));
+
+const pool = mysql
+  .createPool({
+    host: process.env.DB_HOST!,
+    user: process.env.DB_USER!,
+    password: process.env.DB_PASSWORD!,
+    database: process.env.DB_NAME!,
+  })
+  .promise();
+
+app.use("/users", userRouter);
+
+app.use("/products", productRouter);
+
+app.use("/storage", storageRouter);
+
+app.listen(port, () => {
+  runStartup(port);
+});
+
+// Startup code
+const runStartup = async (port: number) => {
+  let firstStartupValue: string | null = null;
+  try {
+    const [firstResponse] = await pool.query<RowDataPacket[]>(
+      `SELECT value
+             FROM app_settings
+             WHERE name = "first-startup";`,
+    );
+    firstStartupValue = firstResponse[0]?.value ?? null;
+  } catch (err: unknown) {
+    if (
+      err instanceof Error &&
+      (err as NodeJS.ErrnoException & { code?: string }).code !==
+        "ER_NO_SUCH_TABLE"
+    ) {
+      throw err;
+    }
+  }
+
+  if (firstStartupValue !== "false") {
+    const schemaPath = path.join(__dirname, "database.scheme.sql");
+    const schemaSql = await readFile(schemaPath, "utf8");
+    const statements = schemaSql
+      .split(";")
+      .map((statement: string) => statement.trim())
+      .filter((statement: string) => statement.length > 0);
+
+    for (const statement of statements) {
+      await pool.query(statement);
+    }
+
+    const [result] = await pool.query<RowDataPacket[]>(
+      `SELECT value
+             FROM app_settings
+             WHERE name = "first-startup";`,
+    );
+
+    if (result[0]?.value === "true") {
+      const insertResult = await insertFirstData();
+
+      if (insertResult.affectedRows > 0) {
+        console.log("Successfully created admin user!");
+        console.log("Username: admin");
+        console.log("Password: admin");
+
+        const [scndResponse] = await pool.query<ResultSetHeader>(
+          `UPDATE app_settings
+                     SET value = "false"
+                     WHERE name = "first-startup";`,
+        );
+
+        if (scndResponse.affectedRows > 0) {
+          console.log("Database settet up successfully!");
+        } else {
+          console.error("There was an error while setting up the database!");
+        }
+      } else {
+        console.error("Error while creating admin user.");
+      }
+    }
+  }
+
+  console.log("Everything is settet up successfully!");
+  console.log(`Backend is running on http://localhost:${port}`);
+};
+
+const insertFirstData = async (): Promise<ResultSetHeader> => {
+  const [insertResult] = await pool.query<ResultSetHeader>(
+    `INSERT INTO users (username, first_name, last_name, email, password, is_admin)
+         VALUES ("admin", "admin", "admin", "admin@example.com", "admin", 1)`,
+  );
+
+  await pool.query(
+    `INSERT INTO storage_locations (name, description)
+         VALUES (?, ?);`,
+    ["Default Storage", "Initial storage location"],
+  );
+
+  const [storageRows] = await pool.query<RowDataPacket[]>(
+    `SELECT uuid
+         FROM storage_locations
+         WHERE name = ? LIMIT 1;`,
+    ["Default Storage"],
+  );
+
+  const storageUuid: string | null = storageRows[0]?.uuid ?? null;
+  if (storageUuid) {
+    await pool.query(
+      `INSERT INTO products (name, description, price, amount, storage_location, picture)
+             VALUES (?, ?, ?, ?, ?, ?);`,
+      [
+        "Welcome Product",
+        "Your first item in Stockhome",
+        "0.00",
+        1,
+        storageUuid,
+        null,
+      ],
+    );
+  }
+
+  console.log("Welcome product is ready...");
+  return insertResult;
+};
+
+// error handling code
+app.use((err: Error, req: Request, res: Response, next: NextFunction) => {
+  console.error(err.stack);
+  res.status(500).send("Something broke!");
+});

backend/services/helperFuncs.ts

@@ -0,0 +1,14 @@
+import type { ErrorCode } from "../misc/types.ts";
+
+export const returnErrorCode = (errorKey: ErrorCode) => {
+  if (!Array.isArray(errorKey) || errorKey.length < 2) {
+    return false;
+  }
+
+  return {
+    success: false,
+    code: errorKey[0],
+    data: null,
+    message: errorKey[1],
+  };
+};

backend/services/tokenService.js

@@ -1,25 +0,0 @@
-import {jwtVerify, SignJWT} from "jose";
-import env from "dotenv";
-
-env.config();
-const secret = new TextEncoder().encode(process.env.SECRET_KEY);
-
-export async function generateToken(payload) {
-  return await new SignJWT(payload)
-      .setProtectedHeader({alg: "HS256"})
-      .setIssuedAt()
-      .setExpirationTime("24h") // Token valid for 24 hours
-      .sign(secret);
-}
-
-export async function authenticate(req, res, next) {
-  const authHeader = req.headers["authorization"];
-  const token = authHeader && authHeader.split(" ")[1]; // Bearer <token>
-
-  if (token == null) return res.sendStatus(401); // No token present
-
-  const { payload } = await jwtVerify(token, secret);
-  req.user = payload;
-
-  next();
-}

backend/services/tokenService.ts

@@ -0,0 +1,40 @@
+import type { NextFunction, Request, Response } from "express";
+import { type JWTPayload, jwtVerify, SignJWT } from "jose";
+import env from "dotenv";
+
+env.config();
+const secret = new TextEncoder().encode(process.env.SECRET_KEY);
+
+export type AuthTokenPayload = JWTPayload & {
+  username: string;
+};
+
+declare module "express-serve-static-core" {
+  interface Request {
+    user?: AuthTokenPayload;
+  }
+}
+
+export async function generateToken(payload: AuthTokenPayload) {
+  return await new SignJWT(payload)
+    .setProtectedHeader({ alg: "HS256" })
+    .setIssuedAt()
+    .setExpirationTime("24h")
+    .sign(secret);
+}
+
+export async function authenticate(
+  req: Request,
+  res: Response,
+  next: NextFunction,
+) {
+  const authHeader = req.headers["authorization"];
+  const token = authHeader && authHeader.split(" ")[1];
+
+  if (token == null) return res.sendStatus(401);
+
+  const { payload } = await jwtVerify<AuthTokenPayload>(token, secret);
+  req.user = payload;
+
+  next();
+}

backend/tsconfig.json

@@ -0,0 +1,32 @@
+{
+  "compilerOptions": {
+    "composite": true,
+    "rootDir": ".",
+    "outDir": "./dist",
+    "module": "CommonJS",
+    "target": "ES2022",
+    "moduleResolution": "Node",
+    "esModuleInterop": true,
+    "allowSyntheticDefaultImports": true,
+    "ignoreDeprecations": "6.0",
+    "types": ["node"],
+    "sourceMap": true,
+    "declaration": true,
+    "strict": true,
+    "skipLibCheck": true
+  },
+  "include": ["./**/*.ts"],
+  "exclude": [
+    "node_modules",
+    "dist",
+    "**/vite.config.ts",
+    "**/vite.config.*",
+    "**/*.config.ts",
+    "**/*.config.*"
+  ],
+  "references": [
+    {
+      "path": "../shared"
+    }
+  ]
+}

backend/vite.config.ts

@@ -0,0 +1,29 @@
+import { defineConfig } from "vite";
+import path from "path";
+import { dirname } from "node:path";
+import { fileURLToPath } from "node:url";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+export default defineConfig({
+  root: "src",
+  build: {
+    outDir: "../dist",
+    emptyOutDir: true,
+    sourcemap: true,
+    minify: "esbuild",
+    assetsDir: "assets",
+    rollupOptions: {
+      input: path.resolve(__dirname, "src/index.html"),
+      output: {
+        assetFileNames: "assets/[name]-[hash][extname]",
+      },
+    },
+  },
+  resolve: {
+    alias: {
+      "@": path.resolve(__dirname, "src"),
+    },
+  },
+});

docker-compose.yml

@@ -11,7 +11,7 @@ services:
       - ./.docker/volumes/stockhome_mysql:/var/lib/mysql
       - ./mysql-timezone.cnf:/etc/mysql/conf.d/timezone.cnf:ro
     healthcheck:
-      test: ["CMD", "mysqladmin", "ping", "-h", "localhost"]
+      test: [ "CMD", "mysqladmin", "ping", "-h", "localhost" ]
       interval: 5s
       timeout: 3s
       retries: 20
@@ -19,8 +19,8 @@ services:
   backend:
     container_name: stockhome-backend
     build:
-      context: ./backend
+      context: .
-      dockerfile: Dockerfile
+      dockerfile: backend/Dockerfile
     ports:
       - "8004:8004"
     environment:
@@ -39,7 +39,9 @@ services:
     container_name: stockhome-frontend
     ports:
       - "80:80"
-    build: ./frontend
+    build:
+      context: .
+      dockerfile: frontend/Dockerfile
     environment:
       BACKEND_HOST: ${BACKEND_HOST}
     depends_on:

eslint.config.mjs

@@ -0,0 +1,13 @@
+import js from "@eslint/js";
+import globals from "globals";
+
+export default [
+  js.configs.recommended,
+  {
+    languageOptions: {
+      globals: {
+        ...globals.node,
+      },
+    },
+  },
+];

frontend/Dockerfile

@@ -3,17 +3,25 @@ FROM node:22-alpine AS builder
 WORKDIR /app
 
 COPY package.json package-lock.json ./
+COPY backend/package.json backend/
+COPY frontend/package.json frontend/
+COPY shared/package.json shared/
+
 RUN npm ci
 
-COPY . .
+COPY shared/ shared/
-RUN npm run build
+COPY frontend/ frontend/
+
+# Build shared first, then frontend
+RUN npm run build --workspace=shared
+RUN npm run build --workspace=frontend
 
 FROM nginx:alpine AS runner
 
 WORKDIR /usr/share/nginx/html
-COPY --from=builder /app/dist .
+COPY --from=builder /app/frontend/dist .
 
-COPY nginx.conf /etc/nginx/templates/default.conf.template
+COPY frontend/nginx.conf /etc/nginx/templates/default.conf.template
 
 EXPOSE 80
 CMD ["nginx", "-g", "daemon off;"]

frontend/README.md

@@ -4,12 +4,15 @@ This template provides a minimal setup to get React working in Vite with HMR and
 
 Currently, two official plugins are available:
 
-- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react) uses [Oxc](https://oxc.rs)
+- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react)
-- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react-swc) uses [SWC](https://swc.rs/)
+  uses [Oxc](https://oxc.rs)
+- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react-swc)
+  uses [SWC](https://swc.rs/)
 
 ## React Compiler
 
-The React Compiler is enabled on this template. See [this documentation](https://react.dev/learn/react-compiler) for more information.
+The React Compiler is enabled on this template. See [this documentation](https://react.dev/learn/react-compiler) for
+more information.
 
 Note: This will impact Vite dev & build performances.
 
@@ -45,10 +48,13 @@ export default defineConfig([
 ])
 ```
 
-You can also install [eslint-plugin-react-x](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-x) and [eslint-plugin-react-dom](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-dom) for React-specific lint rules:
+You can also
+install [eslint-plugin-react-x](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-x)
+and [eslint-plugin-react-dom](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-dom)
+for React-specific lint rules:
 
 ```js
-// eslint.config.js
+// eslint.config.mjs
 import reactX from 'eslint-plugin-react-x'
 import reactDom from 'eslint-plugin-react-dom'
 

frontend/package.json

@@ -16,8 +16,8 @@
   "dependencies": {
     "@emotion/react": "^11.14.0",
     "@emotion/styled": "^11.14.1",
-    "@fontsource/inter": "^5.2.8",
+    "@fontsource/ibm-plex-mono": "^5.3.0",
-    "@mui/icons-material": "^9.0.1",
+    "@fontsource/ibm-plex-sans": "^5.3.0",
     "@mui/joy": "^5.0.0-beta.52",
     "@tailwindcss/vite": "^4.3.0",
     "@tanstack/react-form": "^1.32.0",
@@ -30,7 +30,6 @@
     "react": "^17.0.0 || ^18.0.0 || ^19.0.0",
     "react-dom": "^17.0.0 || ^18.0.0 || ^19.0.0",
     "react-i18next": "^17.0.8",
-    "react-toastify": "^11.1.0",
     "tailwindcss": "^4.3.0",
     "validator": "^13.15.35",
     "zod": "^4.4.3"

frontend/src/App.tsx

@@ -1,9 +1,11 @@
 import { createRouter, RouterProvider } from "@tanstack/react-router";
 import "./App.css";
-import { ToastContainer } from "react-toastify";
 import { routeTree } from "./routeTree.gen";
+import { NotFound } from "./components/NotFound.tsx";
+import { CssVarsProvider } from "@mui/joy";
+import { theme } from "./theme.ts";
 
-const router = createRouter({ routeTree });
+const router = createRouter({ routeTree, defaultNotFoundComponent: NotFound });
 
 declare module "@tanstack/react-router" {
   interface Register {
@@ -13,21 +15,9 @@ declare module "@tanstack/react-router" {
 
 function App() {
   return (
-    <>
+    <CssVarsProvider theme={theme} defaultMode={"system"}>
-      <ToastContainer
-        position="top-right"
-        autoClose={5000}
-        hideProgressBar={false}
-        newestOnTop={false}
-        closeOnClick={false}
-        rtl={false}
-        pauseOnFocusLoss
-        draggable
-        pauseOnHover
-        theme="colored"
-      />
       <RouterProvider router={router} />
-    </>
+    </CssVarsProvider>
   );
 }
 

frontend/src/components/AmountStepper.tsx

@@ -0,0 +1,65 @@
+import { IconButton, Input } from "@mui/joy";
+import { Minus, Plus } from "lucide-react";
+
+interface AmountStepperProps {
+  value: number;
+  onChange: (value: number) => void;
+  onBlur?: () => void;
+  min?: number;
+}
+
+export const AmountStepper = ({
+  value,
+  onChange,
+  onBlur,
+  min = 0,
+}: AmountStepperProps) => {
+  const step = (delta: number) => onChange(Math.max(min, (value || 0) + delta));
+
+  return (
+    <div
+      className="flex rounded-2xl border border-solid"
+      style={{ borderColor: "var(--joy-palette-divider)" }}
+    >
+      <IconButton
+        type="button"
+        variant="plain"
+        size="lg"
+        disabled={value <= min}
+        onClick={() => step(-1)}
+        className="flex-none transition-transform active:scale-90"
+        sx={{ borderRadius: 0 }}
+      >
+        <Minus size={16} />
+      </IconButton>
+      <Input
+        type="number"
+        value={value}
+        className="grow"
+        onChange={(e) => {
+          const nextValue = Number(e.target.value);
+          onChange(Number.isNaN(nextValue) ? min : Math.max(min, nextValue));
+        }}
+        onBlur={onBlur}
+        variant="plain"
+        size="lg"
+        slotProps={{ input: { className: "text-center font-semibold" } }}
+        sx={{
+          borderRadius: 0,
+          "--Input-focusedThickness": "0px",
+          bgcolor: "var(--joy-palette-background-surface)",
+        }}
+      />
+      <IconButton
+        type="button"
+        variant="plain"
+        size="lg"
+        onClick={() => step(1)}
+        className="flex-none transition-transform active:scale-90"
+        sx={{ borderRadius: 0 }}
+      >
+        <Plus size={16} />
+      </IconButton>
+    </div>
+  );
+};

frontend/src/components/LoginCard.tsx

@@ -1,15 +1,21 @@
 import { useForm } from "@tanstack/react-form";
-import { Input, Button, Alert } from "@mui/joy";
+import { Button, Input } from "@mui/joy";
 import { useMutation } from "@tanstack/react-query";
 import { signInUser } from "../utils/api/auth";
 import { useTranslation } from "react-i18next";
-import { useNavigate } from "@tanstack/react-router";
+import { useNavigate, useSearch } from "@tanstack/react-router";
-import { useState } from "react";
+import { useEffect, useState } from "react";
+import { useColorScheme } from "@mui/joy/styles";
+import { Layers } from "lucide-react";
 import type { AlertInterface } from "../misc/interfaces";
+import { changeTranslation } from "../utils/uxFncs";
+import { MyAlert } from "./MyAlert.tsx";
 
 export const LoginCard = () => {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
   const navigate = useNavigate();
+  const { mode, setMode } = useColorScheme();
+  const search: { loggedOut?: boolean } = useSearch({ from: "/login" });
   const [alert, setAlert] = useState<AlertInterface>({
     isAlert: false,
     type: "neutral",
@@ -17,6 +23,18 @@ export const LoginCard = () => {
     text: "",
   });
 
+  useEffect(() => {
+    if (search.loggedOut) {
+      setAlert({
+        isAlert: true,
+        type: "primary",
+        header: t("success"),
+        text: t("logout-success-text"),
+      });
+    }
+    void navigate({ to: "/login" });
+  }, []);
+
   const form = useForm({
     defaultValues: {
       username: "",
@@ -43,7 +61,7 @@ export const LoginCard = () => {
           header: "",
           text: "",
         });
-        navigate({ to: "/app/inventory" });
+        void navigate({ to: "/app/inventory" });
       }
     },
     onError: (error: unknown) => {
@@ -58,17 +76,59 @@ export const LoginCard = () => {
   });
 
   return (
-    <div className="flex min-h-screen w-full items-center justify-center bg-[radial-gradient(1200px_circle_at_20%_10%,#e6f2ff_0%,#f7f9fc_40%,#f1f5fb_100%)] px-6 py-10">
+    <div className="flex min-h-screen w-full flex-col lg:flex-row">
-      <div className="mx-auto flex w-full max-w-4xl items-center justify-center">
+      <div
-        <div className="w-full max-w-md rounded-3xl border border-white/70 bg-white/80 p-8 shadow-[0_24px_60px_rgba(12,38,78,0.18)] backdrop-blur">
+        className="hidden flex-col justify-between px-12 py-10 lg:flex lg:w-1/2"
-          <div className="mb-8 space-y-2">
+        style={{ backgroundColor: "#0e1116", color: "#e8ecf2" }}
-            <p className="text-xs font-semibold uppercase tracking-[0.3em] text-[#0b6bcb]">
+      >
-              Stockhome
+        <div className="flex items-center gap-2">
+          <span className="flex h-8 w-8 items-center justify-center rounded-lg" style={{ backgroundColor: "#5b8def" }}>
+            <Layers size={16} color="white" />
+          </span>
+          <span className="text-lg font-bold">{t("app-title")}</span>
+        </div>
+        <div className="max-w-md space-y-3">
+          <h2 className="text-3xl font-bold" style={{ letterSpacing: "-0.03em" }}>
+            {t("login-tagline-1")}
+          </h2>
+          <p className="text-sm" style={{ color: "#8590a0" }}>
+            {t("login-tagline-2")}
           </p>
-            <h1 className="text-3xl font-semibold text-slate-900">
+        </div>
+        <p className="text-xs" style={{ color: "#8590a0" }}>
+          v0.9 MVP
+        </p>
+      </div>
+
+      <div
+        className="flex flex-1 items-center justify-center px-6 py-10"
+        style={{ backgroundColor: "var(--joy-palette-background-body)" }}
+      >
+        <div className="w-full max-w-md space-y-6">
+          <div className="flex items-center gap-2 lg:hidden">
+            <span
+              className="flex h-8 w-8 items-center justify-center rounded-lg"
+              style={{ backgroundColor: "var(--joy-palette-primary-solidBg)" }}
+            >
+              <Layers size={16} color="white" />
+            </span>
+            <span className="text-lg font-bold" style={{ color: "var(--joy-palette-text-primary)" }}>
+              {t("app-title")}
+            </span>
+          </div>
+
+          <div className="space-y-2">
+            <p
+              className="text-xs font-semibold uppercase tracking-[0.3em]"
+              style={{ color: "var(--joy-palette-primary-solidBg)" }}
+            >
+              {t("app-title")}
+            </p>
+            <h1 className="text-3xl font-bold" style={{ color: "var(--joy-palette-text-primary)" }}>
               {t("login")}
             </h1>
           </div>
+
           <form
             className="space-y-5"
             onSubmit={(e) => {
@@ -77,15 +137,7 @@ export const LoginCard = () => {
             }}
           >
             {alert.isAlert && (
-              <Alert
+              <MyAlert type={alert.type} header={alert.header} text={alert.text} />
-                variant="soft"
-                color={alert.type}
-                className="rounded-2xl border border-rose-200/70 bg-rose-50/80 text-rose-700 shadow-[0_12px_30px_rgba(220,38,38,0.12)]"
-              >
-                {alert.header}
-                <br />
-                {alert.text}
-              </Alert>
             )}
             <form.Field name="username">
               {(field) => (
@@ -95,7 +147,7 @@ export const LoginCard = () => {
                   placeholder={t("username")}
                   variant="outlined"
                   size="lg"
-                  className="rounded-2xl bg-white/90 shadow-[0_10px_24px_rgba(15,23,42,0.08)]"
+                  className="rounded-2xl"
                 />
               )}
             </form.Field>
@@ -108,7 +160,7 @@ export const LoginCard = () => {
                   placeholder={t("password")}
                   variant="outlined"
                   size="lg"
-                  className="rounded-2xl bg-white/90 shadow-[0_10px_24px_rgba(15,23,42,0.08)]"
+                  className="rounded-2xl"
                 />
               )}
             </form.Field>
@@ -116,11 +168,30 @@ export const LoginCard = () => {
               type="submit"
               loading={isPending}
               size="lg"
-              className="w-full rounded-2xl bg-[#0b6bcb] text-white shadow-[0_16px_36px_rgba(11,107,203,0.35)] transition hover:-translate-y-0.5 hover:bg-[#095aa7]"
+              color="primary"
+              variant="solid"
+              className="btn-lift w-full rounded-2xl"
             >
               {t("login")}
             </Button>
           </form>
+
+          <div
+            className="flex items-center justify-center gap-3 text-sm"
+            style={{ color: "var(--joy-palette-text-tertiary)" }}
+          >
+            <button type="button" onClick={changeTranslation} className="hover:underline">
+              {i18n.language === "de" ? "English" : "Deutsch"}
+            </button>
+            <span>|</span>
+            <button
+              type="button"
+              onClick={() => setMode(mode === "dark" ? "light" : "dark")}
+              className="hover:underline"
+            >
+              {mode === "dark" ? t("theme-light") : t("theme-dark")}
+            </button>
+          </div>
         </div>
       </div>
     </div>

frontend/src/components/Mono.tsx

@@ -0,0 +1,16 @@
+import type { ReactNode } from "react";
+
+interface MonoProps {
+  children: ReactNode;
+  className?: string;
+}
+
+// Small helper for the numeric/date values the mockups render in IBM Plex Mono.
+export const Mono = ({ children, className = "" }: MonoProps) => (
+  <span
+    className={`tabular-nums ${className}`}
+    style={{ fontFamily: "var(--joy-fontFamily-code)" }}
+  >
+    {children}
+  </span>
+);

frontend/src/components/MyAlert.tsx

@@ -0,0 +1,21 @@
+import { Alert } from "@mui/joy";
+
+interface MyAlertProps {
+  type: "success" | "warning" | "danger" | "neutral" | "primary";
+  header: string;
+  text: string;
+}
+
+export const MyAlert = (props: MyAlertProps) => {
+  return (
+    <Alert
+      variant="soft"
+      color={props.type}
+      className="animate-fade-in rounded-2xl drop-shadow-sm"
+    >
+      {props.header}
+      <br />
+      {props.text}
+    </Alert>
+  );
+};

frontend/src/components/NotFound.tsx

@@ -0,0 +1,20 @@
+import { Typography } from "@mui/joy";
+import { useTranslation } from "react-i18next";
+
+export const NotFound = () => {
+  const { t } = useTranslation();
+
+  return (
+    <div className={"flex flex-col items-center gap-2"}>
+      <Typography color={"primary"} level={"h1"}>
+        {t("not-found-header")}
+      </Typography>
+      <Typography
+        sx={{ color: "var(--joy-palette-text-primary)" }}
+        level={"body-lg"}
+      >
+        {t("not-found-body")}
+      </Typography>
+    </div>
+  );
+};

frontend/src/components/PageHeader.tsx

@@ -0,0 +1,24 @@
+import type { ReactNode } from "react";
+import { Typography } from "@mui/joy";
+
+interface PageHeaderProps {
+  title: string;
+  subtitle?: string;
+  actions?: ReactNode;
+}
+
+export const PageHeader = ({ title, subtitle, actions }: PageHeaderProps) => (
+  <div className="flex flex-wrap items-start justify-between gap-4">
+    <div className="space-y-1">
+      <Typography level="h2" sx={{ color: "var(--joy-palette-text-primary)" }}>
+        {title}
+      </Typography>
+      {subtitle && (
+        <Typography level="body-lg" sx={{ color: "var(--joy-palette-text-tertiary)" }}>
+          {subtitle}
+        </Typography>
+      )}
+    </div>
+    {actions && <div className="flex items-center gap-3">{actions}</div>}
+  </div>
+);

frontend/src/components/ProductStatusBar.tsx

@@ -0,0 +1,43 @@
+import { Chip } from "@mui/joy";
+import { useTranslation } from "react-i18next";
+import { getExpiryDays, type ProductStatus } from "../utils/productStatus";
+
+const accentColor: Record<ProductStatus, string> = {
+  expired: "var(--joy-palette-danger-solidBg)",
+  "expiring-soon": "var(--joy-palette-warning-solidBg)",
+  ok: "transparent",
+};
+
+// Colored left-edge bar used on Inventory rows/cards to flag expiry status.
+export const ProductStatusBar = ({ status }: { status: ProductStatus }) => (
+  <span
+    className="block h-full w-[3px] shrink-0 self-stretch rounded-full"
+    style={{ backgroundColor: accentColor[status] }}
+  />
+);
+
+const chipColor: Record<ProductStatus, "danger" | "warning" | "neutral"> = {
+  expired: "danger",
+  "expiring-soon": "warning",
+  ok: "neutral",
+};
+
+// "Expires in N days" / "Expired N days ago" chip used on product detail headers.
+export const ExpiryBadge = ({ expiryDate }: { expiryDate?: string | null }) => {
+  const { t } = useTranslation();
+  const expiry = getExpiryDays(expiryDate);
+  if (!expiry) {
+    return null;
+  }
+
+  const text =
+    expiry.status === "expired"
+      ? t("days-since-expired", { count: Math.abs(expiry.days) })
+      : t("expires-in-days-badge", { count: expiry.days });
+
+  return (
+    <Chip variant="soft" color={chipColor[expiry.status]} size="sm" className="rounded-full px-3">
+      {text}
+    </Chip>
+  );
+};

frontend/src/components/Sidebar.tsx

@@ -1,67 +1,77 @@
 import { useState } from "react";
 import { useTranslation } from "react-i18next";
-import { Button, Typography } from "@mui/joy";
+import { Button, Chip, Typography } from "@mui/joy";
-import InventoryIcon from "@mui/icons-material/Inventory";
+import { Package, Plus, Layers, Settings, Menu, X, ChevronRight } from "lucide-react";
-import AddBoxIcon from "@mui/icons-material/AddBox";
+import { useNavigate, useRouterState } from "@tanstack/react-router";
-import StorageIcon from "@mui/icons-material/Storage";
+import { useQuery } from "@tanstack/react-query";
-import SettingsIcon from "@mui/icons-material/Settings";
-import ExitToAppIcon from "@mui/icons-material/ExitToApp";
-import TranslateIcon from "@mui/icons-material/Translate";
-import MenuIcon from "@mui/icons-material/Menu";
-import CloseIcon from "@mui/icons-material/Close";
-import { useNavigate, useMatchRoute } from "@tanstack/react-router";
 import Cookies from "js-cookie";
-import { changeTranslation } from "../utils/uxFncs";
+import { getProducts } from "../utils/api/products.ts";
+import { getStorages } from "../utils/api/storages.ts";
 
 export const Sidebar = () => {
   const { t } = useTranslation();
   const navigate = useNavigate();
-  const matchRoute = useMatchRoute();
+  const pathname = useRouterState({ select: (state) => state.location.pathname });
   const [isOpen, setIsOpen] = useState(false);
 
-  const btnClass =
+  const { data: products } = useQuery({ queryKey: ["products"], queryFn: getProducts });
-    "h-11 w-full justify-start! rounded-2xl px-4 text-left text-sm font-semibold text-slate-700 transition hover:bg-white/80 hover:text-[#0b6bcb] [&_.MuiButton-startDecorator]:mr-3! [&_.MuiButton-startDecorator]:ml-0!";
+  const { data: storages } = useQuery({ queryKey: ["storages"], queryFn: getStorages });
 
-  const variant = (to: string) =>
+  const btnClass =
-    !!matchRoute({ to, fuzzy: false }) ? "soft" : "plain";
+    "h-11 w-full justify-start! rounded-2xl px-4 text-left text-sm font-semibold transition-colors duration-150 [&_.MuiButton-startDecorator]:mr-3! [&_.MuiButton-startDecorator]:ml-0! [&_.MuiButton-endDecorator]:ml-auto!";
+
+  const isActive = (to: string) => pathname === to || pathname.startsWith(`${to}/`);
 
   const handleNavigate = (to: string) => {
-    navigate({ to });
+    void navigate({ to });
     setIsOpen(false);
   };
 
+  const appName = Cookies.get("app-name") || t("app-title");
+  const initials = appName.slice(0, 2).toUpperCase();
+
+  const navItems = [
+    { to: "/app/inventory", label: t("inventory"), icon: <Package size={18} />, count: products?.length },
+    { to: "/app/add-product", label: t("add"), icon: <Plus size={18} /> },
+    { to: "/app/storages", label: t("storages"), icon: <Layers size={18} />, count: storages?.length },
+    { to: "/app/app-settings", label: t("settings"), icon: <Settings size={18} /> },
+  ];
+
   return (
-    <aside className="flex w-full flex-col gap-6 border-b border-white/80 bg-linear-to-b from-[#f7fbff] via-[#f2f6fb] to-[#eef3f9] px-4 py-5 shadow-[0_20px_60px_rgba(11,107,203,0.08)] sm:px-5 lg:h-full lg:min-h-screen lg:max-w-70 lg:border-b-0 lg:border-r lg:px-6 lg:py-8">
+    <aside
+      className="flex w-full flex-col gap-6 px-4 py-5 sm:px-5 lg:h-full lg:min-h-screen lg:max-w-70 lg:border-b-0 lg:border-r lg:px-6 lg:py-8"
+      style={{
+        borderBottom: "1px solid var(--joy-palette-divider)",
+        borderRightColor: "var(--joy-palette-divider)",
+        backgroundColor: "var(--joy-palette-background-surface)",
+      }}
+    >
       <div className="flex items-center justify-between gap-4">
-        <div className="space-y-2">
+        <div className="flex items-center gap-2">
+          <span
+            className="flex h-8 w-8 items-center justify-center rounded-lg"
+            style={{ backgroundColor: "var(--joy-palette-primary-solidBg)" }}
+          >
+            <Layers size={16} color="white" />
+          </span>
           <Typography
-            level="h2"
+            level="title-lg"
-            className="text-[22px] font-semibold text-[#0b6bcb]"
+            className="text-[17px] font-bold"
+            sx={{ color: "var(--joy-palette-text-primary)" }}
           >
             {t("app-title")}
           </Typography>
-          <Typography
-            level="body-lg"
-            className="text-sm font-medium text-slate-500"
-          >
-            {Cookies.get("app-name") ? Cookies.get("app-name") : ""}
-          </Typography>
         </div>
         <Button
           variant="soft"
+          color="neutral"
           size="sm"
-          className="lg:hidden transition-transform duration-200 ease-out"
+          sx={{
+            display: "inline-flex",
+            "@media (min-width: 1024px)": { display: "none" },
+          }}
           onClick={() => setIsOpen((open) => !open)}
-          startDecorator={
+          startDecorator={isOpen ? <X size={16} /> : <Menu size={16} />}
-            <span
-              className={`inline-flex transition-transform duration-200 ease-out ${
-                isOpen ? "rotate-180" : "rotate-0"
-              }`}
-            >
-              {isOpen ? <CloseIcon /> : <MenuIcon />}
-            </span>
-          }
-          sx={{ display: { lg: "none" } }}
         >
           {isOpen ? t("close") : t("menu")}
         </Button>
@@ -74,71 +84,68 @@ export const Sidebar = () => {
             : "max-h-0 opacity-0 pointer-events-none"
         } lg:max-h-none lg:opacity-100 lg:pointer-events-auto`}
       >
-        <div className="flex flex-1 flex-col gap-2">
+        <div className="flex flex-1 flex-col gap-1">
+          {navItems.map((item) => {
+            const active = isActive(item.to);
+            return (
               <Button
-            onClick={() => handleNavigate("/app/inventory")}
+                key={item.to}
-            variant={variant("/app/inventory")}
+                onClick={() => handleNavigate(item.to)}
-            startDecorator={<InventoryIcon />}
+                variant={active ? "soft" : "plain"}
+                color="primary"
+                startDecorator={item.icon}
+                endDecorator={
+                  item.count !== undefined ? (
+                    <Chip size="sm" variant="soft" color={active ? "primary" : "neutral"}>
+                      {item.count}
+                    </Chip>
+                  ) : undefined
+                }
                 className={btnClass}
-          >
+                sx={{
-            {t("inventory")}
+                  color: active
-          </Button>
+                    ? "var(--joy-palette-primary-solidBg)"
-          <Button
+                    : "var(--joy-palette-text-secondary)",
-            onClick={() => handleNavigate("/app/add-product")}
+                  borderLeft: "3px solid",
-            variant={variant("/app/add-product")}
+                  borderLeftColor: active ? "var(--joy-palette-primary-solidBg)" : "transparent",
-            startDecorator={<AddBoxIcon />}
+                  "&:hover": {
-            className={btnClass}
+                    bgcolor: active
-          >
+                      ? "var(--joy-palette-primary-softBg)"
-            {t("add")}
+                      : "var(--joy-palette-background-level1)",
-          </Button>
+                  },
-          <Button
-            onClick={() => handleNavigate("/app/storages")}
-            variant={variant("/app/storages")}
-            startDecorator={<StorageIcon />}
-            className={btnClass}
-          >
-            {t("storages")}
-          </Button>
-          <Button
-            onClick={() => handleNavigate("/app/app-settings")}
-            variant={variant("/app/app-settings")}
-            startDecorator={<SettingsIcon />}
-            className={btnClass}
-          >
-            {t("settings")}
-          </Button>
-          <Button
-            onClick={() => {
-              Cookies.remove("token");
-              handleNavigate("/login");
                 }}
-            color="danger"
-            startDecorator={<ExitToAppIcon />}
-            className={btnClass}
               >
-            {t("logout")}
+                {item.label}
-          </Button>
-          <Button
-            onClick={() => {
-              changeTranslation();
-              setIsOpen(false);
-            }}
-            color="neutral"
-            startDecorator={<TranslateIcon />}
-            className={btnClass}
-          >
-            {t("change-translation")}
               </Button>
+            );
+          })}
         </div>
 
-        <div className="flex items-center gap-3 rounded-2xl border border-white/70 bg-white/80 px-4 py-3 text-xs font-semibold uppercase tracking-[0.2em] text-[#0b6bcb] shadow-[0_12px_30px_rgba(12,38,78,0.12)]">
+        <button
-          <img
+          type="button"
-            src="/favicon.png"
+          onClick={() => handleNavigate("/app/app-settings")}
-            alt="Stockhome"
+          className="flex items-center gap-3 rounded-2xl px-3 py-2.5 text-left transition"
-            className="h-7 w-7 rounded-lg"
+          style={{
-          />
+            border: "1px solid var(--joy-palette-divider)",
-          <span>Stockhome</span>
+            backgroundColor: "var(--joy-palette-background-level1)",
+          }}
+        >
+          <span
+            className="flex h-8 w-8 shrink-0 items-center justify-center rounded-full text-xs font-bold"
+            style={{
+              backgroundColor: "var(--joy-palette-primary-softBg)",
+              color: "var(--joy-palette-primary-softColor)",
+            }}
+          >
+            {initials}
+          </span>
+          <div className="min-w-0 flex-1">
+            <Typography level="title-md" className="truncate" sx={{ color: "var(--joy-palette-text-primary)" }}>
+              {appName}
+            </Typography>
           </div>
+          <ChevronRight size={16} color="var(--joy-palette-text-tertiary)" />
+        </button>
       </div>
     </aside>
   );

frontend/src/components/StatTiles.tsx

@@ -0,0 +1,53 @@
+import { Typography } from "@mui/joy";
+import { useTranslation } from "react-i18next";
+
+interface StatTilesProps {
+  expired: number;
+  expiringSoon: number;
+  lowStock: number;
+  unitsStored: number;
+}
+
+export const StatTiles = ({
+  expired,
+  expiringSoon,
+  lowStock,
+  unitsStored,
+}: StatTilesProps) => {
+  const { t } = useTranslation();
+
+  const tiles = [
+    { value: expired, label: t("stat-expired"), accent: "var(--joy-palette-danger-solidBg)" },
+    { value: expiringSoon, label: t("stat-expiring-soon"), accent: "var(--joy-palette-warning-solidBg)" },
+    { value: lowStock, label: t("stat-low-stock"), accent: "var(--joy-palette-neutral-500)" },
+    { value: unitsStored, label: t("stat-units-stored"), accent: "var(--joy-palette-primary-solidBg)" },
+  ];
+
+  return (
+    <div className="grid grid-cols-2 gap-4 lg:grid-cols-4">
+      {tiles.map((tile) => (
+        <div
+          key={tile.label}
+          className="flex items-center gap-3 rounded-2xl border border-solid px-4 py-4"
+          style={{
+            borderColor: "var(--joy-palette-divider)",
+            backgroundColor: "var(--joy-palette-background-surface)",
+          }}
+        >
+          <span
+            className="h-9 w-[3px] shrink-0 rounded-full"
+            style={{ backgroundColor: tile.accent }}
+          />
+          <div>
+            <Typography level="h2" sx={{ color: "var(--joy-palette-text-primary)" }}>
+              {tile.value}
+            </Typography>
+            <Typography level="body-sm" className="normal-case font-normal" sx={{ color: "var(--joy-palette-text-tertiary)" }}>
+              {tile.label}
+            </Typography>
+          </div>
+        </div>
+      ))}
+    </div>
+  );
+};

frontend/src/components/StorageRow.tsx

@@ -1,11 +1,14 @@
-import { useQueryClient, useMutation } from "@tanstack/react-query";
+import { useMutation, useQueryClient } from "@tanstack/react-query";
 import { deleteStorage, updateStorage } from "../utils/api/storages";
 import { useForm } from "@tanstack/react-form";
-import { useStore } from "@tanstack/react-store";
+import { Button, IconButton, Input } from "@mui/joy";
-import { Input, Button } from "@mui/joy";
+import { Trash2 } from "lucide-react";
 import type { Storage } from "../misc/interfaces";
 import { formatDate } from "../utils/uxFncs";
+import { Mono } from "./Mono.tsx";
 import { useTranslation } from "react-i18next";
+import { useState } from "react";
+import { DeleteConfirmation } from "./modals/DeleteConfirmation.tsx";
 
 interface StorageRowProps {
   storage: Storage;
@@ -15,6 +18,9 @@ interface StorageRowProps {
 export const StorageRow = ({ storage, onError }: StorageRowProps) => {
   const { t } = useTranslation();
 
+  const [showModal, setShowModal] = useState<boolean>(false);
+  const [storageToDelete, setStorageToDelete] = useState<Storage | null>(null);
+
   const queryClient = useQueryClient();
 
   const mutation = useMutation({
@@ -26,6 +32,11 @@ export const StorageRow = ({ storage, onError }: StorageRowProps) => {
     onError,
   });
 
+  const deleteStorageModalFnc = async (storage: Storage) => {
+    setStorageToDelete(storage);
+    setShowModal(true);
+  };
+
   const deleteMutation = useMutation({
     mutationFn: (uuid: string) => deleteStorage(uuid),
     onSuccess: () => {
@@ -44,13 +55,15 @@ export const StorageRow = ({ storage, onError }: StorageRowProps) => {
     },
   });
 
-  const values = useStore(form.baseStore, (state) => state.values);
-  const isDirty =
-    values.name !== storage.name ||
-    (values.description ?? "") !== (storage.description ?? "");
-
   return (
-    <tr key={storage.uuid} className="border-t border-slate-200 align-top">
+    <>
+      <DeleteConfirmation
+        open={showModal}
+        setOpen={setShowModal}
+        storage={storageToDelete}
+        deleteStorageByUUID={(uuid) => deleteMutation.mutateAsync(uuid)}
+      />
+      <tr key={storage.uuid} className="align-top">
         <td className="px-6 py-5">
           <form.Field name="name">
             {(field) => (
@@ -60,7 +73,12 @@ export const StorageRow = ({ storage, onError }: StorageRowProps) => {
                 onBlur={field.handleBlur}
                 size="sm"
                 variant="outlined"
-              className="rounded-xl bg-slate-50/80 text-slate-700 shadow-none ring-1 ring-inset ring-slate-200 focus-within:ring-2 focus-within:ring-slate-300"
+                className="rounded-xl shadow-none"
+                sx={{
+                  bgcolor: "var(--joy-palette-background-level1)",
+                  color: "var(--joy-palette-text-secondary)",
+                  "--Input-focusedHighlight": "var(--joy-palette-neutral-300)",
+                }}
               />
             )}
           </form.Field>
@@ -74,41 +92,63 @@ export const StorageRow = ({ storage, onError }: StorageRowProps) => {
                 onBlur={field.handleBlur}
                 size="sm"
                 variant="outlined"
-              className="rounded-xl bg-slate-50/80 text-slate-700 shadow-none ring-1 ring-inset ring-slate-200 focus-within:ring-2 focus-within:ring-slate-300"
+                className="rounded-xl shadow-none"
+                sx={{
+                  bgcolor: "var(--joy-palette-background-level1)",
+                  color: "var(--joy-palette-text-secondary)",
+                  "--Input-focusedHighlight": "var(--joy-palette-neutral-300)",
+                }}
               />
             )}
           </form.Field>
         </td>
-      <td className="px-6 py-5 text-sm text-slate-500">
+        <td
-        {formatDate(storage.created_at)}
+          className="px-6 py-5 text-sm"
+          style={{ color: "var(--joy-palette-text-tertiary)" }}
+        >
+          <Mono>{formatDate(storage.created_at)}</Mono>
         </td>
-      <td className="px-6 py-5 text-sm text-slate-500">
+        <td
-        {formatDate(storage.updated_at)}
+          className="px-6 py-5 text-sm"
+          style={{ color: "var(--joy-palette-text-tertiary)" }}
+        >
+          <Mono>{formatDate(storage.updated_at)}</Mono>
         </td>
         <td className="px-6 py-5 text-right">
           <div className="flex flex-wrap justify-end gap-2">
+            <form.Subscribe
+              selector={(state) =>
+                state.values.name !== storage.name ||
+                (state.values.description ?? "") !== (storage.description ?? "")
+              }
+            >
+              {(isDirty) =>
+                isDirty && (
                   <Button
                     color="primary"
                     onClick={form.handleSubmit}
-            disabled={
+                    disabled={mutation.isPending || deleteMutation.isPending}
-              !isDirty || mutation.isPending || deleteMutation.isPending
-            }
                     size="sm"
                     className="rounded-xl"
                   >
                     {mutation.isPending ? "..." : t("save")}
                   </Button>
-          <Button
+                )
+              }
+            </form.Subscribe>
+            <IconButton
               color="danger"
-            onClick={() => deleteMutation.mutateAsync(storage.uuid)}
+              variant="plain"
+              onClick={() => deleteStorageModalFnc(storage)}
               disabled={mutation.isPending || deleteMutation.isPending}
               size="sm"
               className="rounded-xl"
             >
-            {deleteMutation.isPending ? "..." : t("delete")}
+              <Trash2 size={16} />
-          </Button>
+            </IconButton>
           </div>
         </td>
       </tr>
+    </>
   );
 };

frontend/src/components/modals/AddStorageModal.tsx

@@ -1,19 +1,11 @@
-import {
+import { Button, DialogContent, DialogTitle, Input, Modal, ModalDialog, Stack, } from "@mui/joy";
-  Modal,
-  ModalDialog,
-  DialogTitle,
-  DialogContent,
-  Stack,
-  Input,
-  Button,
-  Alert,
-} from "@mui/joy";
 import { useForm } from "@tanstack/react-form";
 import { useMutation, useQueryClient } from "@tanstack/react-query";
 import { useTranslation } from "react-i18next";
-import type { NewStorage, AlertInterface } from "../../misc/interfaces";
+import type { AlertInterface, NewStorage } from "../../misc/interfaces";
 import { mutateNewStorage } from "../../utils/api/storages";
 import { useState } from "react";
+import { MyAlert } from "../MyAlert.tsx";
 
 interface AddStorageModalProps {
   isOpen: boolean;
@@ -59,11 +51,18 @@ export const AddStorageModal = (props: AddStorageModalProps) => {
   return (
     <>
       <Modal open={props.isOpen} onClose={() => props.setOpen(false)}>
-        <ModalDialog className="rounded-3xl border border-white/70 bg-white/90 p-6 shadow-[0_30px_70px_rgba(12,38,78,0.2)] backdrop-blur">
+        <ModalDialog
-          <DialogTitle className="text-slate-900">
+          className="rounded-3xl p-6"
+          sx={{
+            border: "1px solid",
+            borderColor: "divider",
+            bgcolor: "background.surface",
+          }}
+        >
+          <DialogTitle sx={{ color: "var(--joy-palette-text-primary)" }}>
             {t("new-storage-title")}
           </DialogTitle>
-          <DialogContent className="text-slate-500">
+          <DialogContent sx={{ color: "var(--joy-palette-text-tertiary)" }}>
             {t("new-storage-content")}
           </DialogContent>
           <form
@@ -81,7 +80,7 @@ export const AddStorageModal = (props: AddStorageModalProps) => {
                     placeholder={t("storage-name")}
                     variant="outlined"
                     size="lg"
-                    className="rounded-2xl bg-white/90 shadow-[0_10px_24px_rgba(15,23,42,0.08)]"
+                    className="rounded-2xl"
                   />
                 )}
               </form.Field>
@@ -93,29 +92,27 @@ export const AddStorageModal = (props: AddStorageModalProps) => {
                     placeholder={t("description")}
                     variant="outlined"
                     size="lg"
-                    className="rounded-2xl bg-white/90 shadow-[0_10px_24px_rgba(15,23,42,0.08)]"
+                    className="rounded-2xl"
                   />
                 )}
               </form.Field>
               <Button
                 type="submit"
                 size="lg"
-                className="rounded-2xl bg-[#0b6bcb] text-white shadow-[0_16px_36px_rgba(11,107,203,0.35)] transition hover:-translate-y-0.5 hover:bg-[#095aa7]"
+                color="primary"
+                variant="solid"
+                className="btn-lift rounded-2xl"
               >
                 {t("submit")}
               </Button>
             </Stack>
           </form>
           {alert.isAlert && (
-            <Alert
+            <MyAlert
-              variant="soft"
+              type={alert.type}
-              color={alert.type}
+              header={alert.header}
-              className="mt-4 rounded-2xl border border-rose-200/70 bg-rose-50/80 text-rose-700 shadow-[0_12px_30px_rgba(220,38,38,0.12)]"
+              text={alert.text}
-            >
+            />
-              {alert.header}
-              <br />
-              {alert.text}
-            </Alert>
           )}
         </ModalDialog>
       </Modal>

frontend/src/components/modals/ChangePasswordModal.tsx

@@ -1,22 +1,24 @@
 import {
+  Button,
+  DialogTitle,
+  Input,
   Modal,
   ModalDialog,
-  DialogTitle,
   Stack,
-  Input,
-  Button,
-  Alert,
 } from "@mui/joy";
 import { useForm } from "@tanstack/react-form";
 import { useMutation } from "@tanstack/react-query";
 import { useTranslation } from "react-i18next";
-import type { ChangePasswordIntf, AlertInterface } from "../../misc/interfaces";
+import type { AlertInterface, ChangePasswordIntf } from "../../misc/interfaces";
 import { mutatePassword } from "../../utils/api/auth";
 import { useState } from "react";
+import { USER_ERROR_CODE } from "@stockhome/shared";
+import { MyAlert } from "../MyAlert.tsx";
 
 interface ChangePasswordProps {
   isOpen: boolean;
   setOpen: (value: boolean) => void;
+  alert: (alert: AlertInterface) => void;
 }
 
 export const ChangePasswordModal = (props: ChangePasswordProps) => {
@@ -35,7 +37,19 @@ export const ChangePasswordModal = (props: ChangePasswordProps) => {
       newPasswordRep: "",
     },
     onSubmit: async ({ value }) => {
+      if (
+        value.newPassword === value.newPasswordRep &&
+        value.newPassword !== ""
+      ) {
         mutate(value);
+      } else {
+        setAlert({
+          isAlert: true,
+          type: "danger",
+          header: t("error"),
+          text: t(USER_ERROR_CODE.PASSWORDS_NOT_MATCHED[0]),
+        });
+      }
     },
   });
 
@@ -50,6 +64,19 @@ export const ChangePasswordModal = (props: ChangePasswordProps) => {
       });
     },
     onSuccess: () => {
+      props.alert({
+        isAlert: true,
+        type: "success",
+        header: t("success"),
+        text: t("SU005"),
+      });
+
+      setAlert({
+        isAlert: true,
+        type: "success",
+        header: t("success"),
+        text: t("SU005"),
+      });
       props.setOpen(false);
     },
   });
@@ -57,8 +84,15 @@ export const ChangePasswordModal = (props: ChangePasswordProps) => {
   return (
     <>
       <Modal open={props.isOpen} onClose={() => props.setOpen(false)}>
-        <ModalDialog className="rounded-3xl border border-white/70 bg-white/90 p-6 shadow-[0_30px_70px_rgba(12,38,78,0.2)] backdrop-blur">
+        <ModalDialog
-          <DialogTitle className="text-slate-900">
+          className="rounded-3xl p-6"
+          sx={{
+            border: "1px solid",
+            borderColor: "divider",
+            bgcolor: "background.surface",
+          }}
+        >
+          <DialogTitle sx={{ color: "var(--joy-palette-text-primary)" }}>
             {t("new-password-title")}
           </DialogTitle>
           <form
@@ -77,7 +111,7 @@ export const ChangePasswordModal = (props: ChangePasswordProps) => {
                     placeholder={t("current-password")}
                     variant="outlined"
                     size="lg"
-                    className="rounded-2xl bg-white/90 shadow-[0_10px_24px_rgba(15,23,42,0.08)]"
+                    className="rounded-2xl"
                   />
                 )}
               </form.Field>
@@ -90,7 +124,7 @@ export const ChangePasswordModal = (props: ChangePasswordProps) => {
                     placeholder={t("new-password")}
                     variant="outlined"
                     size="lg"
-                    className="rounded-2xl bg-white/90 shadow-[0_10px_24px_rgba(15,23,42,0.08)]"
+                    className="rounded-2xl"
                   />
                 )}
               </form.Field>
@@ -103,29 +137,27 @@ export const ChangePasswordModal = (props: ChangePasswordProps) => {
                     placeholder={t("new-password-rep")}
                     variant="outlined"
                     size="lg"
-                    className="rounded-2xl bg-white/90 shadow-[0_10px_24px_rgba(15,23,42,0.08)]"
+                    className="rounded-2xl"
                   />
                 )}
               </form.Field>
               <Button
                 type="submit"
                 size="lg"
-                className="rounded-2xl bg-[#0b6bcb] text-white shadow-[0_16px_36px_rgba(11,107,203,0.35)] transition hover:-translate-y-0.5 hover:bg-[#095aa7]"
+                color="primary"
+                variant="solid"
+                className="btn-lift rounded-2xl"
               >
                 {t("change")}
               </Button>
             </Stack>
           </form>
           {alert.isAlert && (
-            <Alert
+            <MyAlert
-              variant="soft"
+              type={alert.type}
-              color={alert.type}
+              header={alert.header}
-              className="mt-4 rounded-2xl border border-rose-200/70 bg-rose-50/80 text-rose-700 shadow-[0_12px_30px_rgba(220,38,38,0.12)]"
+              text={alert.text}
-            >
+            />
-              {alert.header}
-              <br />
-              {alert.text}
-            </Alert>
           )}
         </ModalDialog>
       </Modal>

frontend/src/components/modals/DeleteConfirmation.tsx

@@ -0,0 +1,54 @@
+import Button from "@mui/joy/Button";
+import Divider from "@mui/joy/Divider";
+import DialogTitle from "@mui/joy/DialogTitle";
+import DialogContent from "@mui/joy/DialogContent";
+import DialogActions from "@mui/joy/DialogActions";
+import Modal from "@mui/joy/Modal";
+import ModalDialog from "@mui/joy/ModalDialog";
+import type { Storage } from "../../misc/interfaces";
+import { useTranslation } from "react-i18next";
+
+interface DeleteConfirmationProps {
+  open: boolean;
+  setOpen: (open: boolean) => void;
+  storage: Storage | null;
+  deleteStorageByUUID: (uuid: string) => void;
+}
+
+export const DeleteConfirmation = (props: DeleteConfirmationProps) => {
+  const { t } = useTranslation();
+
+  return (
+    <Modal open={props.open} onClose={() => props.setOpen(false)}>
+      <ModalDialog variant="outlined" role="alertdialog">
+        <DialogTitle>Confirmation</DialogTitle>
+        <Divider />
+        <DialogContent>
+          {t("delete-confirmation-text")}
+          {props.storage ? ` "${props.storage.name}"` : ""}?
+        </DialogContent>
+        <DialogActions>
+          <Button
+            variant="solid"
+            color="danger"
+            onClick={() => {
+              if (props.storage) {
+                props.deleteStorageByUUID(props.storage.uuid);
+              }
+              props.setOpen(false);
+            }}
+          >
+            {t("delete")}
+          </Button>
+          <Button
+            variant="plain"
+            color="neutral"
+            onClick={() => props.setOpen(false)}
+          >
+            {t("cancel")}
+          </Button>
+        </DialogActions>
+      </ModalDialog>
+    </Modal>
+  );
+};

frontend/src/hooks/useLogout.ts

@@ -0,0 +1,13 @@
+import Cookies from "js-cookie";
+import { useNavigate } from "@tanstack/react-router";
+
+export const useLogout = () => {
+  const navigate = useNavigate();
+
+  const logout = () => {
+    Cookies.remove("token");
+    void navigate({ to: "/login", search: { loggedOut: true } });
+  };
+
+  return { logout };
+};

frontend/src/index.css

@@ -1 +1,54 @@
 @import "tailwindcss";
+
+@keyframes page-in {
+  from {
+    opacity: 0;
+    transform: translateY(4px);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
+
+@keyframes fade-in {
+  from {
+    opacity: 0;
+    transform: translateY(-4px);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
+
+.animate-page-in {
+  animation: page-in 220ms ease-out;
+}
+
+.animate-fade-in {
+  animation: fade-in 180ms ease-out;
+}
+
+.btn-lift {
+  transition:
+    transform 150ms ease,
+    box-shadow 150ms ease;
+}
+
+.btn-lift:hover {
+  transform: translateY(-1px);
+}
+
+.btn-lift:active {
+  transform: translateY(0);
+}
+
+@media (prefers-reduced-motion: reduce) {
+  .animate-page-in,
+  .animate-fade-in,
+  .btn-lift {
+    animation: none !important;
+    transition: none !important;
+  }
+}

frontend/src/main.tsx

@@ -1,5 +1,10 @@
 import { StrictMode } from "react";
 import { createRoot } from "react-dom/client";
+import "@fontsource/ibm-plex-sans/400.css";
+import "@fontsource/ibm-plex-sans/500.css";
+import "@fontsource/ibm-plex-sans/600.css";
+import "@fontsource/ibm-plex-sans/700.css";
+import "@fontsource/ibm-plex-mono/500.css";
 import "./index.css";
 import "./utils/i18n";
 import App from "./App.tsx";

frontend/src/misc/interfaces.ts

@@ -59,6 +59,7 @@ export type ProductRow = {
   location: string;
   locationDetail: string;
   expiryDate: string;
+  expiryDateRaw: string | null;
   refillDate: string;
 };
 

frontend/src/pages/AddProduct.tsx

@@ -1,31 +1,25 @@
 import { useMutation, useQuery } from "@tanstack/react-query";
-import {
+import { Button, Input, Option, Select, Typography } from "@mui/joy";
-  Alert,
-  Box,
-  Button,
-  Chip,
-  Divider,
-  Input,
-  Option,
-  Select,
-  Typography,
-} from "@mui/joy";
 import { useTranslation } from "react-i18next";
 import { useEffect, useState } from "react";
 import { useForm } from "@tanstack/react-form";
 import { createProduct } from "../utils/api/products";
 import { getStorages } from "../utils/api/storages";
-import type {
+import type { AlertInterface, ProductFormValues, Storage } from "../misc/interfaces";
-  ProductFormValues,
-  AlertInterface,
-  Storage,
-} from "../misc/interfaces";
 import type { ApiError } from "../utils/api/apiError";
 import Cookies from "js-cookie";
+import { AmountStepper } from "../components/AmountStepper.tsx";
+import { PageHeader } from "../components/PageHeader.tsx";
+import { MyAlert } from "../components/MyAlert.tsx";
+
+const cardSx = {
+  border: "1px solid",
+  borderColor: "divider",
+  bgcolor: "background.surface",
+} as const;
 
 export const AddProduct = () => {
   const { t } = useTranslation();
-  const [success, setSuccess] = useState(false);
   const [alert, setAlert] = useState<AlertInterface>({
     isAlert: false,
     type: "neutral",
@@ -69,7 +63,6 @@ export const AddProduct = () => {
       storage_location_uuid: "",
     },
     onSubmit: async ({ value }) => {
-      setSuccess(false);
       mutate(value);
     },
   });
@@ -77,44 +70,34 @@ export const AddProduct = () => {
   const { mutate, isPending } = useMutation({
     mutationFn: (values: ProductFormValues) => createProduct(values),
     onSuccess: () => {
-      setSuccess(true);
+      setAlert({
+        isAlert: true,
+        type: "success",
+        header: "",
+        text: "",
+      });
     },
     onError: showError,
   });
 
   return (
-    <>
     <div className="space-y-6">
-        <div className="flex flex-wrap items-center gap-3">
+      <PageHeader title={t("add-product")} subtitle={t("add-product-subtitle")} />
-          <div className="space-y-1">
+
-            <Typography level="h2" className="text-slate-900">
-              {t("add-product")}
-            </Typography>
-            <Typography level="body-lg" className="text-slate-500">
-              {t("add-product-subtitle")}
-            </Typography>
-          </div>
-          <Chip
-            variant="soft"
-            color="primary"
-            className="ml-auto rounded-full px-3"
-          >
-            {t("details")}
-          </Chip>
-        </div>
-      </div>
-      <Box className="mt-6 rounded-3xl border border-white/70 bg-white/80 p-6 shadow-[0_24px_60px_rgba(12,38,78,0.12)] backdrop-blur">
       <form
-          className="space-y-6"
         onSubmit={(e) => {
           e.preventDefault();
           form.handleSubmit();
         }}
       >
-          <div className="grid gap-5 lg:grid-cols-[1.2fr_1fr]">
+        <div className="grid gap-5 lg:grid-cols-2">
-            <div className="space-y-4">
+          <div className="rounded-3xl p-6" style={cardSx}>
+            <Typography level="title-lg" sx={{ color: "var(--joy-palette-text-primary)" }}>
+              {t("product")}
+            </Typography>
+            <div className="mt-4 space-y-4">
               <div className="space-y-1">
-                <Typography level="title-md" className="text-slate-900">
+                <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
                   {t("product-name")}
                 </Typography>
                 <form.Field name="name">
@@ -122,55 +105,39 @@ export const AddProduct = () => {
                     <Input
                       type="text"
                       required
+                      placeholder={t("product-name-placeholder")}
                       value={field.state.value}
                       onChange={(e) => field.handleChange(e.target.value)}
                       onBlur={field.handleBlur}
                       size="lg"
                       variant="outlined"
-                      className="rounded-2xl bg-white/90 shadow-[0_10px_24px_rgba(15,23,42,0.08)]"
+                      className="rounded-2xl"
                     />
                   )}
                 </form.Field>
               </div>
               <div className="space-y-1">
-                <Typography level="title-md" className="text-slate-900">
+                <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
                   {t("description")}
                 </Typography>
                 <form.Field name="description">
                   {(field) => (
                     <Input
                       type="text"
+                      placeholder={t("description-placeholder")}
                       value={field.state.value}
                       onChange={(e) => field.handleChange(e.target.value)}
                       onBlur={field.handleBlur}
                       size="lg"
                       variant="outlined"
-                      className="rounded-2xl bg-white/90 shadow-[0_10px_24px_rgba(15,23,42,0.08)]"
+                      className="rounded-2xl"
                     />
                   )}
                 </form.Field>
               </div>
-              <div className="grid gap-4 md:grid-cols-2">
+              <div className="grid gap-4 sm:grid-cols-2">
                 <div className="space-y-1">
-                  <Typography level="title-md" className="text-slate-900">
+                  <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
-                    {t("expiry-date")}
-                  </Typography>
-                  <form.Field name="expiry_date">
-                    {(field) => (
-                      <Input
-                        type="date"
-                        value={field.state.value}
-                        onChange={(e) => field.handleChange(e.target.value)}
-                        onBlur={field.handleBlur}
-                        size="lg"
-                        variant="outlined"
-                        className="rounded-2xl bg-white/90"
-                      />
-                    )}
-                  </form.Field>
-                </div>
-                <div className="space-y-1">
-                  <Typography level="title-md" className="text-slate-900">
                     {t("bottling-date")}
                   </Typography>
                   <form.Field name="bottling_date">
@@ -182,48 +149,54 @@ export const AddProduct = () => {
                         onBlur={field.handleBlur}
                         size="lg"
                         variant="outlined"
-                        className="rounded-2xl bg-white/90"
+                        className="rounded-2xl"
+                      />
+                    )}
+                  </form.Field>
+                </div>
+                <div className="space-y-1">
+                  <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
+                    {t("expiry-date")}
+                  </Typography>
+                  <form.Field name="expiry_date">
+                    {(field) => (
+                      <Input
+                        type="date"
+                        value={field.state.value}
+                        onChange={(e) => field.handleChange(e.target.value)}
+                        onBlur={field.handleBlur}
+                        size="lg"
+                        variant="outlined"
+                        className="rounded-2xl"
                       />
                     )}
                   </form.Field>
                 </div>
               </div>
             </div>
-            <div className="space-y-4">
+          </div>
-              <div className="rounded-2xl border border-white/70 bg-linear-to-br from-[#f7fbff] via-[#f2f6fb] to-[#eef3f9] p-5 shadow-[0_16px_40px_rgba(12,38,78,0.08)]">
+
-                <Typography level="title-md" className="text-slate-900">
+          <div className="rounded-3xl p-6" style={cardSx}>
+            <Typography level="title-lg" sx={{ color: "var(--joy-palette-text-primary)" }}>
               {t("inventory")}
             </Typography>
-                <Divider className="my-3" />
+            <div className="mt-4 space-y-4">
-                <div className="grid gap-4">
               <div className="space-y-1">
-                    <Typography level="title-md" className="text-slate-900">
+                <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
                   {t("amount")}
                 </Typography>
                 <form.Field name="amount">
                   {(field) => (
-                        <Input
+                    <AmountStepper
-                          type="number"
-                          color="neutral"
-                          id="amountInput"
-                          placeholder={t("amount")}
                       value={field.state.value}
-                          variant="soft"
+                      onChange={field.handleChange}
-                          size="lg"
-                          onChange={(e) => {
-                            const nextValue = Number(e.target.value);
-                            field.handleChange(
-                              Number.isNaN(nextValue) ? 0 : nextValue,
-                            );
-                          }}
                       onBlur={field.handleBlur}
-                          className="rounded-2xl bg-white/80"
                     />
                   )}
                 </form.Field>
               </div>
               <div className="space-y-1">
-                    <Typography level="title-md" className="text-slate-900">
+                <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
                   {t("price")}
                 </Typography>
                 <form.Field name="price">
@@ -235,29 +208,30 @@ export const AddProduct = () => {
                       onBlur={field.handleBlur}
                       size="lg"
                       variant="outlined"
-                          className="rounded-2xl bg-white/90"
+                      className="rounded-2xl"
+                      endDecorator={
+                        <Typography level="body-sm" sx={{ color: "var(--joy-palette-text-tertiary)" }}>
+                          {Cookies.get("currency")}
+                        </Typography>
+                      }
                     />
                   )}
                 </form.Field>
-                    <Typography level="body-sm" className="text-slate-500">
-                      {Cookies.get("currency")}
-                    </Typography>
               </div>
               <div className="space-y-1">
-                    <Typography level="title-md" className="text-slate-900">
+                <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
                   {t("storage-place")}
                 </Typography>
                 <form.Field name="storage_location_uuid">
                   {(field) => (
                     <Select
                       required
+                      placeholder={t("choose-storage")}
                       value={field.state.value}
-                          onChange={(_event, value) =>
+                      onChange={(_event, value) => field.handleChange(value ?? "")}
-                            field.handleChange(value ?? "")
-                          }
                       size="lg"
                       variant="outlined"
-                          className="rounded-2xl bg-white/90"
+                      className="rounded-2xl"
                     >
                       {storages?.map((storage) => (
                         <Option key={storage.uuid} value={storage.uuid}>
@@ -268,49 +242,30 @@ export const AddProduct = () => {
                   )}
                 </form.Field>
               </div>
-                </div>
+              <Typography level="body-sm" className="normal-case font-normal" sx={{ color: "var(--joy-palette-text-tertiary)" }}>
-              </div>
+                {t("amount-price-optional-hint")}
-            </div>
-          </div>
-          <div className="flex flex-wrap items-center justify-between gap-3">
-            <Typography level="body-sm" className="text-slate-500">
-              {t("product-details")}
               </Typography>
-            <Button
+            </div>
-              type="submit"
+          </div>
-              loading={isPending}
+        </div>
-              size="lg"
+
-              className="rounded-2xl bg-[#0b6bcb] text-white shadow-[0_16px_36px_rgba(11,107,203,0.35)] transition hover:-translate-y-0.5 hover:bg-[#095aa7]"
+        <div className="mt-5 flex flex-wrap items-center justify-between gap-3">
-            >
+          <Typography level="body-sm" className="normal-case font-normal" sx={{ color: "var(--joy-palette-text-tertiary)" }}>
-              {t("save")}
+            {t("all-fields-editable-later")}
+          </Typography>
+          <div className="flex gap-3">
+            <Button type="submit" loading={isPending} size="lg" color="primary" variant="solid" className="btn-lift rounded-2xl">
+              {t("save-product")}
             </Button>
           </div>
-          {alert.isAlert && (
-            <Alert
-              color={alert.type}
-              variant="soft"
-              className="rounded-2xl border border-rose-200/70 bg-rose-50/80 text-rose-700 shadow-[0_12px_30px_rgba(220,38,38,0.12)]"
-            >
-              {alert.header}
-              <br />
-              {alert.text}
-            </Alert>
-          )}
-          {success && (
-            <Alert
-              color="success"
-              variant="soft"
-              className="rounded-2xl border border-emerald-200/70 bg-emerald-50/80 text-emerald-700 shadow-[0_14px_30px_rgba(16,185,129,0.18)]"
-            >
-              <div className="flex w-full items-center justify-between">
-                <Typography level="body-sm" className="text-emerald-700">
-                  {t("success")}
-                </Typography>
         </div>
-            </Alert>
+
+        {alert.isAlert && (
+          <div className="mt-4">
+            <MyAlert type={alert.type} header={alert.header} text={alert.text} />
+          </div>
         )}
       </form>
-      </Box>
+    </div>
-    </>
   );
 };

frontend/src/pages/Inventory.tsx

@@ -1,25 +1,53 @@
-import { useEffect, useState } from "react";
+import { ChangeEvent, Fragment, MouseEvent, useEffect, useMemo, useState } from "react";
-import {
+import { Button, Checkbox, Chip, CircularProgress, Input, Sheet, Table, Typography } from "@mui/joy";
-  Typography,
-  Button,
-  CircularProgress,
-  Sheet,
-  Table,
-  Avatar,
-  Chip,
-  Checkbox,
-  Alert,
-} from "@mui/joy";
 import { useNavigate } from "@tanstack/react-router";
 import { useTranslation } from "react-i18next";
-import AddIcon from "@mui/icons-material/Add";
+import { ChevronDown, Plus, Search, Trash2 } from "lucide-react";
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import { deleteSelectedProducts, getProducts } from "../utils/api/products";
 import { formatDate } from "../utils/uxFncs";
 import Cookies from "js-cookie";
-import type { ProductRow } from "../misc/interfaces";
+import type { AlertInterface, ProductRow } from "../misc/interfaces";
-import type { AlertInterface } from "../misc/interfaces";
 import type { ApiError } from "../utils/api/apiError";
+import { MyAlert } from "../components/MyAlert.tsx";
+import { PageHeader } from "../components/PageHeader.tsx";
+import { StatTiles } from "../components/StatTiles.tsx";
+import { Mono } from "../components/Mono.tsx";
+import { ProductStatusBar } from "../components/ProductStatusBar.tsx";
+import { getExpiryDays, getProductStatus, isExpired, isExpiringSoon, isLowStock } from "../utils/productStatus";
+
+const relativeColor = {
+  expired: "var(--joy-palette-danger-solidBg)",
+  "expiring-soon": "var(--joy-palette-warning-solidBg)",
+  ok: "var(--joy-palette-text-tertiary)",
+} as const;
+
+// Small "in N days" / "Expired N days ago" line shown under a row's expiry date.
+const ExpiryRelative = ({ expiryDate }: { expiryDate: string | null }) => {
+  const { t } = useTranslation();
+  const expiry = getExpiryDays(expiryDate);
+  if (!expiry) {
+    return null;
+  }
+  const text =
+    expiry.status === "expired"
+      ? t("days-since-expired", { count: Math.abs(expiry.days) })
+      : t("days-until-expiry", { count: expiry.days });
+  return (
+    <Typography level="body-sm" className="normal-case font-normal" sx={{ color: relativeColor[expiry.status] }}>
+      {text}
+    </Typography>
+  );
+};
+
+type FilterKey = "all" | "expired" | "soon" | "low";
+
+const matchesFilter = (row: ProductRow, filter: FilterKey) => {
+  if (filter === "all") return true;
+  if (filter === "expired") return isExpired(row.expiryDateRaw);
+  if (filter === "soon") return isExpiringSoon(row.expiryDateRaw);
+  return isLowStock(Number(row.stockLabel));
+};
 
 export const InventoryPage = () => {
   const { t } = useTranslation();
@@ -31,6 +59,9 @@ export const InventoryPage = () => {
     header: "",
     text: "",
   });
+  const [search, setSearch] = useState("");
+  const [filter, setFilter] = useState<FilterKey>("all");
+  const [collapsedGroups, setCollapsedGroups] = useState<Set<string>>(new Set());
 
   const showError = (error: unknown) => {
     const errorCode = (error as { code?: string })?.code;
@@ -58,8 +89,9 @@ export const InventoryPage = () => {
     }
   }, [productsError, productsErrorObj]);
 
-  const rows: ProductRow[] = (productsData ?? []).map(
+  const rows: ProductRow[] = useMemo(
-    (product: any, index: number) => ({
+    () =>
+      (productsData ?? []).map((product: any, index: number) => ({
         id: String(product?.uuid ?? index),
         uuid: String(product?.uuid ?? ""),
         name: product?.name ?? t("product-name"),
@@ -72,223 +104,297 @@ export const InventoryPage = () => {
         location: product?.storage_location_name ?? "-",
         locationDetail: "",
         expiryDate: formatDate(product?.expiry_date),
+        expiryDateRaw: product?.expiry_date ?? null,
         refillDate: formatDate(product?.bottling_date),
-    }),
+      })),
+    [productsData, t],
   );
 
+  const stats = useMemo(
+    () => ({
+      expired: rows.filter((row) => isExpired(row.expiryDateRaw)).length,
+      expiringSoon: rows.filter((row) => isExpiringSoon(row.expiryDateRaw)).length,
+      lowStock: rows.filter((row) => isLowStock(Number(row.stockLabel))).length,
+      unitsStored: rows.reduce((sum, row) => sum + Number(row.stockLabel), 0),
+    }),
+    [rows],
+  );
+
+  const filteredRows = useMemo(() => {
+    const query = search.trim().toLowerCase();
+    return rows
+      .filter((row) => matchesFilter(row, filter))
+      .filter(
+        (row) =>
+          !query ||
+          row.name.toLowerCase().includes(query) ||
+          row.description.toLowerCase().includes(query),
+      );
+  }, [rows, search, filter]);
+
+  const groups = useMemo(() => {
+    const map = new Map<string, ProductRow[]>();
+    for (const row of filteredRows) {
+      const bucket = map.get(row.location) ?? [];
+      bucket.push(row);
+      map.set(row.location, bucket);
+    }
+    return Array.from(map.entries()).map(([name, groupRows]) => ({
+      name,
+      rows: groupRows,
+      units: groupRows.reduce((sum, row) => sum + Number(row.stockLabel), 0),
+    }));
+  }, [filteredRows]);
+
+  const storageCount = useMemo(() => new Set(rows.map((row) => row.location)).size, [rows]);
+
+  const toggleGroup = (name: string) => {
+    setCollapsedGroups((prev) => {
+      const next = new Set(prev);
+      if (next.has(name)) {
+        next.delete(name);
+      } else {
+        next.add(name);
+      }
+      return next;
+    });
+  };
+
   const [selected, setSelected] = useState<readonly string[]>([]);
 
   const { mutate: deleteSelection, isPending: isDeleting } = useMutation({
     mutationFn: (values: string[]) => deleteSelectedProducts(values),
     onSuccess: () => {
       setSelected([]);
-      queryClient.invalidateQueries({ queryKey: ["products"] });
+      void queryClient.invalidateQueries({ queryKey: ["products"] });
     },
     onError: showError,
   });
 
-  const handleSelectAllClick = (event: React.ChangeEvent<HTMLInputElement>) => {
+  const handleSelectAllClick = (event: ChangeEvent<HTMLInputElement>) => {
-    if (event.target.checked) {
+    setSelected(event.target.checked ? filteredRows.map((row) => row.id) : []);
-      setSelected(rows.map((row) => row.id));
-      return;
-    }
-    setSelected([]);
   };
 
-  const handleClick = (_event: React.MouseEvent<unknown>, id: string) => {
+  const handleClick = (_event: MouseEvent<unknown>, id: string) => {
-    const selectedIndex = selected.indexOf(id);
+    setSelected((prev) =>
-    let newSelected: readonly string[] = [];
+      prev.includes(id) ? prev.filter((rowId) => rowId !== id) : [...prev, id],
-    if (selectedIndex === -1) {
-      newSelected = newSelected.concat(selected, id);
-    } else if (selectedIndex === 0) {
-      newSelected = newSelected.concat(selected.slice(1));
-    } else if (selectedIndex === selected.length - 1) {
-      newSelected = newSelected.concat(selected.slice(0, -1));
-    } else if (selectedIndex > 0) {
-      newSelected = newSelected.concat(
-        selected.slice(0, selectedIndex),
-        selected.slice(selectedIndex + 1),
     );
-    }
-    setSelected(newSelected);
   };
 
+  const filterTabs: { key: FilterKey; label: string; count: number; color: "neutral" | "danger" | "warning" }[] = [
+    { key: "all", label: t("filter-all"), count: rows.length, color: "neutral" },
+    { key: "expired", label: t("filter-expired"), count: stats.expired, color: "danger" },
+    { key: "soon", label: t("filter-soon"), count: stats.expiringSoon, color: "warning" },
+    { key: "low", label: t("filter-low"), count: stats.lowStock, color: "neutral" },
+  ];
+
   return (
-    <>
+    <div className="space-y-6">
-      <Typography level="h2">{t("inventory")}</Typography>
+      <PageHeader
-      <Typography level="body-lg">{t("inventory-subtitle")}</Typography>
+        title={t("inventory")}
-      <div className="mt-4 flex items-center gap-3">
+        subtitle={t("inventory-summary", { count: rows.length, storages: storageCount })}
+        actions={
           <Button
-          startDecorator={<AddIcon />}
+            startDecorator={<Plus size={16} />}
             onClick={() => navigate({ to: "/app/add-product" })}
             variant="solid"
+            className="btn-lift rounded-2xl"
           >
             {t("add")}
           </Button>
+        }
+      />
+
       {productsIsLoading && <CircularProgress size="sm" />}
-      </div>
+      {alert.isAlert && <MyAlert type={alert.type} header={alert.header} text={alert.text} />}
-      {alert.isAlert && (
+
-        <Alert
+      <StatTiles
-          variant="soft"
+        expired={stats.expired}
-          color={alert.type}
+        expiringSoon={stats.expiringSoon}
-          className="mt-4 rounded-2xl border border-rose-200/70 bg-rose-50/80 text-rose-700 shadow-[0_12px_30px_rgba(220,38,38,0.12)]"
+        lowStock={stats.lowStock}
+        unitsStored={stats.unitsStored}
+      />
+
+      <div className="flex flex-col gap-3 sm:flex-row sm:items-center sm:justify-between">
+        <Input
+          value={search}
+          onChange={(e) => setSearch(e.target.value)}
+          placeholder={t("search-products")}
+          startDecorator={<Search size={16} />}
+          size="lg"
+          variant="outlined"
+          className="rounded-2xl sm:max-w-xs"
+        />
+        <div className="flex flex-wrap gap-2">
+          {filterTabs.map((tab) => (
+            <Chip
+              key={tab.key}
+              variant={filter === tab.key ? "solid" : "soft"}
+              color={filter === tab.key ? "neutral" : tab.color}
+              onClick={() => setFilter(tab.key)}
+              className="cursor-pointer rounded-full px-3 transition-all duration-150 active:scale-95"
             >
-          {alert.header}
+              {tab.label} {tab.count}
-          <br />
+            </Chip>
-          {alert.text}
+          ))}
-        </Alert>
+        </div>
-      )}
+      </div>
 
       <Sheet
         variant="outlined"
-        className="mt-6 flex min-h-0 flex-col overflow-hidden rounded-2xl border border-slate-200 bg-white/80 shadow-sm sm:h-[calc(100vh-260px)]"
+        className="flex min-h-0 w-full max-w-full flex-col overflow-hidden rounded-2xl"
+        sx={{ border: "1px solid", borderColor: "divider", bgcolor: "background.surface" }}
       >
-        <div className="flex items-center justify-between border-b border-slate-200 px-6 py-4 text-slate-700">
+        {selected.length > 0 && (
-          <Typography level="body-lg" fontWeight="bold">
+          <div
-            {t("inventory")}
+            className="flex items-center justify-between px-6 py-3"
+            style={{ borderBottom: "1px solid var(--joy-palette-divider)" }}
+          >
+            <Typography level="body-sm" sx={{ color: "var(--joy-palette-text-secondary)" }}>
+              {selected.length} {t("selected")}
             </Typography>
             <Button
               size="sm"
               color="danger"
               variant="solid"
-            disabled={selected.length === 0 || isDeleting}
+              startDecorator={<Trash2 size={14} />}
+              disabled={isDeleting}
               onClick={() => deleteSelection([...selected])}
+              className="rounded-xl"
             >
-            Delete
+              {t("delete")}
             </Button>
           </div>
-        <div className="flex-1 overflow-auto">
+        )}
+
+        {/* Desktop: grouped table */}
+        <div className="hidden overflow-auto lg:block">
           <Table
-            aria-labelledby="tableTitle"
             stickyHeader
             stripe="odd"
             variant="plain"
             hoverRow
-            className="min-w-240 text-slate-700"
+            className="w-full"
             sx={{
-              "--TableCell-headBackground":
+              tableLayout: "fixed",
-                "var(--joy-palette-background-surface)",
+              color: "var(--joy-palette-text-secondary)",
-              "& thead": {
+              "--TableCell-headBackground": "var(--joy-palette-background-level1)",
-                position: "sticky",
-                top: 0,
-                zIndex: 3,
-                backgroundColor: "rgb(248 250 252)",
-              },
-              "& thead tr": {
-                backgroundColor: "rgb(248 250 252)",
-              },
-              "& thead th:nth-child(2)": {
-                width: "40%",
-              },
-              "& thead th:nth-child(3)": {
-                width: "14%",
-              },
               "& thead th": {
-                zIndex: 2,
+                backgroundColor: "var(--joy-palette-background-level1)",
-                backgroundColor: "rgb(248 250 252)",
                 backgroundImage: "none",
+                color: "var(--joy-palette-text-secondary)",
+              },
+              "& thead th:nth-child(1)": { width: "40px" },
+              "& thead th:nth-child(2)": { width: "26%" },
+              "& thead th:nth-child(6)": { width: "8%" },
+              "& tr > *:nth-child(n+3)": { textAlign: "left" },
+              "& tbody tr": {
+                borderTop: "1px solid var(--joy-palette-divider)",
+                transition: "background-color 120ms ease",
               },
-              "& tr > *:nth-child(n+4)": { textAlign: "left" },
             }}
           >
             <thead>
-              <tr className="text-slate-600">
+              <tr>
-                <th className="px-4 py-4">
+                <th className="px-2 py-4">
                   <Checkbox
-                    checked={rows.length > 0 && selected.length === rows.length}
+                    checked={filteredRows.length > 0 && selected.length === filteredRows.length}
-                    indeterminate={
+                    indeterminate={selected.length > 0 && selected.length < filteredRows.length}
-                      selected.length > 0 && selected.length < rows.length
-                    }
                     onChange={handleSelectAllClick}
                     slotProps={{ input: { "aria-label": "select all" } }}
-                    sx={{ verticalAlign: "sub" }}
                   />
                 </th>
-                <th className="px-6 py-4">{t("product-name")}</th>
+                <th className="px-3 py-4">{t("product-name")}</th>
-                <th className="px-6 py-4">{t("price")}</th>
+                <th className="px-3 py-4">{t("stock")}</th>
-                <th className="px-6 py-4">{t("stock")}</th>
+                <th className="px-3 py-4">{t("price")}</th>
-                <th className="px-6 py-4">{t("storage-place")}</th>
+                <th className="px-3 py-4">{t("expiry-date")}</th>
-                <th className="px-6 py-4">{t("expiry-date")}</th>
+                <th className="px-3 py-4 text-right">{t("actions")}</th>
-                <th className="px-6 py-4">{t("bottling-date")}</th>
-                <th className="px-6 py-4 text-right">{t("actions")}</th>
               </tr>
             </thead>
             <tbody>
-              {rows.map((row, index) => {
+              {groups.map((group) => {
+                const isCollapsed = collapsedGroups.has(group.name);
+                return (
+                  <Fragment key={`group-${group.name}`}>
+                    <tr>
+                      <td colSpan={6} className="px-3 py-3" style={{ backgroundColor: "var(--joy-palette-background-level1)" }}>
+                        <button
+                          type="button"
+                          onClick={() => toggleGroup(group.name)}
+                          className="flex items-center gap-2 font-semibold"
+                          style={{ color: "var(--joy-palette-text-primary)" }}
+                        >
+                          <ChevronDown
+                            size={16}
+                            className={`shrink-0 transition-transform duration-200 ${isCollapsed ? "-rotate-90" : ""}`}
+                          />
+                          {group.name}
+                          <span className="font-normal" style={{ color: "var(--joy-palette-text-tertiary)" }}>
+                            {group.rows.length} {t("products")} &middot; {group.units} {t("units")}
+                          </span>
+                        </button>
+                      </td>
+                    </tr>
+                    {!isCollapsed &&
+                      group.rows.map((row) => {
                         const isItemSelected = selected.includes(row.id);
-                const labelId = `inventory-checkbox-${index}`;
+                        const status = getProductStatus(row.expiryDateRaw);
                         return (
                           <tr
                             key={row.id}
-                    className="border-t border-slate-200"
                             onClick={(event) => handleClick(event, row.id)}
                             role="checkbox"
                             aria-checked={isItemSelected}
-                    tabIndex={-1}
                           >
-                    <th scope="row" className="px-4 py-5">
+                            <td className="px-2 py-4">
-                      <Checkbox
+                              <Checkbox checked={isItemSelected} sx={{ verticalAlign: "top" }} />
-                        checked={isItemSelected}
+                            </td>
-                        slotProps={{ input: { "aria-labelledby": labelId } }}
+                            <td className="px-3 py-4">
-                        sx={{ verticalAlign: "top" }}
+                              <div className="flex min-w-0 items-stretch gap-3">
-                      />
+                                <ProductStatusBar status={status} />
-                    </th>
-                    <th id={labelId} scope="row" className="px-6 py-5">
-                      <div className="flex items-center gap-4">
-                        <Avatar size="lg" variant="soft" src={row.imageUrl} />
                                 <div className="min-w-0">
-                          <Typography
+                                  <Typography level="title-md" className="truncate" sx={{ color: "var(--joy-palette-text-primary)" }}>
-                            level="title-md"
-                            className="text-slate-900"
-                          >
                                     {row.name}
                                   </Typography>
-                          <Typography
+                                  <Typography level="body-sm" className="truncate normal-case font-normal" sx={{ color: "var(--joy-palette-text-tertiary)" }}>
-                            level="body-sm"
-                            className="text-slate-500"
-                          >
                                     {row.description}
                                   </Typography>
                                 </div>
                               </div>
-                    </th>
-                    <td className="px-6 py-5">
-                      <Typography level="title-md">{row.price}</Typography>
-                      <Typography level="body-sm" className="text-slate-400">
-                        {Cookies.get("currency")}
-                      </Typography>
                             </td>
-                    <td className="px-6 py-5">
+                            <td className="px-3 py-4">
-                      <Chip
+                              <Typography
-                        variant="soft"
+                                level="title-md"
-                        color="neutral"
+                                sx={{
-                        size="lg"
+                                  color: isLowStock(Number(row.stockLabel))
-                        className="px-3"
+                                    ? "var(--joy-palette-danger-solidBg)"
+                                    : "var(--joy-palette-text-primary)",
+                                }}
                               >
                                 {row.stock}
-                      </Chip>
-                    </td>
-                    <td className="px-6 py-5">
-                      <Typography level="title-md">{row.location}</Typography>
-                      <Typography level="body-sm" className="text-slate-500">
-                        {row.locationDetail}
                               </Typography>
                             </td>
-                    <td className="px-6 py-5">
+                            <td className="px-3 py-4">
-                      <Typography level="title-md">{row.expiryDate}</Typography>
+                              <Mono>
+                                <Typography level="body-sm" sx={{ color: "var(--joy-palette-text-tertiary)" }}>
+                                  {row.price === "-" ? "-" : `${row.price} ${Cookies.get("currency") ?? ""}`}
+                                </Typography>
+                              </Mono>
                             </td>
-                    <td className="px-6 py-5">
+                            <td className="px-3 py-4">
-                      <Typography level="title-md">{row.refillDate}</Typography>
+                              <Mono>
+                                <Typography level="title-md" className="truncate" sx={{ color: "var(--joy-palette-text-primary)" }}>
+                                  {row.expiryDate}
+                                </Typography>
+                              </Mono>
+                              <ExpiryRelative expiryDate={row.expiryDateRaw} />
                             </td>
-                    <td className="px-6 py-5 text-right">
+                            <td className="px-3 py-4 text-right">
                               <Button
-                        onClick={() =>
+                                onClick={() => navigate({ to: `/app/view-product?product=${row.uuid}` })}
-                          navigate({
-                            to: `/app/view-product?product=${row.uuid}`,
-                          })
-                        }
                                 variant="outlined"
                                 size="sm"
+                                className="rounded-xl"
                               >
                                 {t("details")}
                               </Button>
@@ -296,10 +402,96 @@ export const InventoryPage = () => {
                           </tr>
                         );
                       })}
+                  </Fragment>
+                );
+              })}
             </tbody>
           </Table>
         </div>
+
+        {/* Mobile: grouped card list */}
+        <div className="lg:hidden">
+          {groups.map((group) => {
+            const isCollapsed = collapsedGroups.has(group.name);
+            return (
+              <div key={group.name}>
+                <button
+                  type="button"
+                  onClick={() => toggleGroup(group.name)}
+                  className="flex w-full items-center gap-2 px-4 py-3 text-left font-semibold"
+                  style={{
+                    backgroundColor: "var(--joy-palette-background-level1)",
+                    color: "var(--joy-palette-text-primary)",
+                    borderTop: "1px solid var(--joy-palette-divider)",
+                  }}
+                >
+                  <ChevronDown
+                    size={16}
+                    className={`shrink-0 transition-transform duration-200 ${isCollapsed ? "-rotate-90" : ""}`}
+                  />
+                  {group.name}
+                  <span className="ml-auto font-normal" style={{ color: "var(--joy-palette-text-tertiary)" }}>
+                    {group.rows.length}
+                  </span>
+                </button>
+                <div
+                  className="grid transition-[grid-template-rows] duration-200 ease-out"
+                  style={{ gridTemplateRows: isCollapsed ? "0fr" : "1fr" }}
+                >
+                  <div className="overflow-hidden">
+                    {group.rows.map((row) => {
+                      const status = getProductStatus(row.expiryDateRaw);
+                      return (
+                        <button
+                          key={row.id}
+                          type="button"
+                          onClick={() => navigate({ to: `/app/view-product?product=${row.uuid}` })}
+                          className="flex w-full items-stretch gap-3 px-4 py-3 text-left"
+                          style={{ borderTop: "1px solid var(--joy-palette-divider)" }}
+                        >
+                          <ProductStatusBar status={status} />
+                          <div className="min-w-0 flex-1">
+                            <Typography level="title-md" className="truncate" sx={{ color: "var(--joy-palette-text-primary)" }}>
+                              {row.name}
+                            </Typography>
+                            <Mono>
+                              <Typography level="body-sm" className="normal-case" sx={{ color: "var(--joy-palette-text-tertiary)" }}>
+                                {row.expiryDate}
+                              </Typography>
+                            </Mono>
+                          </div>
+                          <Typography
+                            level="title-md"
+                            className="shrink-0"
+                            sx={{
+                              color: isLowStock(Number(row.stockLabel))
+                                ? "var(--joy-palette-danger-solidBg)"
+                                : "var(--joy-palette-text-primary)",
+                            }}
+                          >
+                            {row.stockLabel} <span className="text-sm font-normal">{t("pcs")}</span>
+                          </Typography>
+                        </button>
+                      );
+                    })}
+                  </div>
+                </div>
+              </div>
+            );
+          })}
+          <div className="p-4">
+            <Button
+              startDecorator={<Plus size={16} />}
+              onClick={() => navigate({ to: "/app/add-product" })}
+              variant="solid"
+              size="lg"
+              className="w-full rounded-2xl"
+            >
+              {t("add-product")}
+            </Button>
+          </div>
+        </div>
       </Sheet>
-    </>
+    </div>
   );
 };

frontend/src/pages/ProductQuickView.tsx

@@ -1,37 +1,27 @@
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import { getStorages } from "../utils/api/storages.ts";
-import {
+import { Button, Chip, CircularProgress, Option, Select, Typography } from "@mui/joy";
-  CircularProgress,
-  Typography,
-  Select,
-  Option,
-  Input,
-  Button,
-  Chip,
-  Divider,
-  Box,
-  Alert,
-} from "@mui/joy";
 import { useTranslation } from "react-i18next";
 import { useEffect, useState } from "react";
 import { useForm } from "@tanstack/react-form";
-import { mutateProduct, getProductDetails } from "../utils/api/products.ts";
+import { Link } from "@tanstack/react-router";
+import { getProductDetails, mutateProduct } from "../utils/api/products.ts";
 import { toInputDate } from "../utils/uxFncs";
 import type {
-  ProductFormValues,
-  productDetailsInterface,
   AlertInterface,
+  productDetailsInterface,
+  ProductFormValues,
   Storage,
 } from "../misc/interfaces";
 import type { ApiError } from "../utils/api/apiError";
-import Cookies from "js-cookie";
+import { AmountStepper } from "../components/AmountStepper.tsx";
-import ElectricBoltIcon from "@mui/icons-material/ElectricBolt";
+import { ExpiryBadge } from "../components/ProductStatusBar.tsx";
+import { MyAlert } from "../components/MyAlert.tsx";
 
 export const ProductQuickView = () => {
   const uuid = window.location.search.split("uuid=")[1];
   const { t } = useTranslation();
   const queryClient = useQueryClient();
-  const [success, setSuccess] = useState(false);
   const [alert, setAlert] = useState<AlertInterface>({
     isAlert: false,
     type: "neutral",
@@ -81,6 +71,8 @@ export const ProductQuickView = () => {
     }
   }, [storagesError, storagesErrorObj]);
 
+  // Only Amount/Expiry/Storage are shown here — name/description/bottling
+  // date/price stay in form state untouched and are sent back as-is on save.
   const form = useForm({
     defaultValues: {
       amount: 0,
@@ -101,15 +93,10 @@ export const ProductQuickView = () => {
   });
 
   const { mutate, isPending } = useMutation({
-    mutationFn: ({
+    mutationFn: ({ values, uuid }: { values: ProductFormValues; uuid: string }) =>
-      values,
+      mutateProduct(values, uuid),
-      uuid,
-    }: {
-      values: ProductFormValues;
-      uuid: string;
-    }) => mutateProduct(values, uuid),
     onSuccess: (_data, variables) => {
-      setSuccess(true);
+      setAlert({ isAlert: true, type: "success", header: t("success"), text: t("save") });
       queryClient.invalidateQueries({ queryKey: ["product", variables.uuid] });
     },
     onError: showError,
@@ -121,195 +108,96 @@ export const ProductQuickView = () => {
     }
 
     form.setFieldValue("amount", productDetails.amount ?? 0);
-    form.setFieldValue(
+    form.setFieldValue("bottling_date", toInputDate(productDetails.bottling_date));
-      "bottling_date",
-      toInputDate(productDetails.bottling_date),
-    );
     form.setFieldValue("description", productDetails.description ?? "");
     form.setFieldValue("expiry_date", toInputDate(productDetails.expiry_date));
     form.setFieldValue("name", productDetails.name ?? "");
     form.setFieldValue("price", productDetails.price ?? "");
-    form.setFieldValue(
+    form.setFieldValue("storage_location_uuid", productDetails.storage_location_uuid ?? "");
-      "storage_location_uuid",
-      productDetails.storage_location_uuid ?? "",
-    );
   }, [form, productDetails]);
 
   return (
-    <>
+    <div className="flex min-h-screen items-start justify-center px-4 py-10 sm:items-center" style={{ backgroundColor: "var(--joy-palette-background-body)" }}>
-      <div className="space-y-6">
+      <div className="w-full max-w-md space-y-5">
-        <div className="flex flex-wrap items-center gap-3">
+        <Chip variant="soft" color="warning" size="sm" className="rounded-full px-3 font-semibold">
-          <div className="space-y-1">
+          {t("scanned-badge")}
-            <Typography level="h2" fontWeight="1000" className="text-slate-900">
-              <ElectricBoltIcon color="primary" />
-              {t("product-details-quick")}
-              <ElectricBoltIcon color="primary" />
-            </Typography>
-          </div>
-          <Chip
-            variant="soft"
-            color="primary"
-            className="ml-auto rounded-full px-3"
-          >
-            {t("details")}
         </Chip>
-        </div>
+
         {productDetailsLoading && <CircularProgress size="sm" />}
-      </div>
+
         {isSuccess && (
-        <Box className="mt-6 rounded-3xl border border-white/70 bg-white/80 p-6 shadow-[0_24px_60px_rgba(12,38,78,0.12)] backdrop-blur">
+          <>
+            <div className="space-y-1">
+              <Typography level="h2" sx={{ color: "var(--joy-palette-text-primary)" }}>
+                {productDetails.name}
+              </Typography>
+              <Typography level="body-lg" sx={{ color: "var(--joy-palette-text-tertiary)" }}>
+                {t("opened-from-jar-label")}
+              </Typography>
+              <ExpiryBadge expiryDate={productDetails.expiry_date} />
+            </div>
+
             <form
-            className="space-y-6"
+              className="space-y-5 rounded-3xl p-6"
+              style={{ border: "1px solid var(--joy-palette-divider)", backgroundColor: "var(--joy-palette-background-surface)" }}
               onSubmit={(e) => {
                 e.preventDefault();
                 form.handleSubmit();
               }}
             >
-            <div className="grid gap-5 lg:grid-cols-[1.2fr_1fr]">
+              <div className="space-y-1 text-center">
-              <div className="space-y-4">
+                <Typography level="body-sm" sx={{ color: "var(--joy-palette-text-tertiary)" }}>
-                <div className="space-y-1">
+                  {t("amount-in-storage")}
-                  <Typography level="title-md" className="text-slate-900">
-                    {t("product-name")}
                 </Typography>
-                  <form.Field name="name">
+                <form.Field name="amount">
                   {(field) => (
-                      <Input
+                    <AmountStepper
-                        type="text"
                       value={field.state.value}
-                        onChange={(e) => field.handleChange(e.target.value)}
+                      onChange={field.handleChange}
                       onBlur={field.handleBlur}
-                        size="lg"
-                        variant="outlined"
-                        className="rounded-2xl bg-white/90 shadow-[0_10px_24px_rgba(15,23,42,0.08)]"
                     />
                   )}
                 </form.Field>
-                </div>
+                <Typography level="body-sm" className="normal-case font-normal" sx={{ color: "var(--joy-palette-text-tertiary)" }}>
-                <div className="space-y-1">
+                  {t("set-to-zero-hint")}
-                  <Typography level="title-md" className="text-slate-900">
-                    {t("description")}
                 </Typography>
-                  <form.Field name="description">
-                    {(field) => (
-                      <Input
-                        type="text"
-                        value={field.state.value}
-                        onChange={(e) => field.handleChange(e.target.value)}
-                        onBlur={field.handleBlur}
-                        size="lg"
-                        variant="outlined"
-                        className="rounded-2xl bg-white/90 shadow-[0_10px_24px_rgba(15,23,42,0.08)]"
-                      />
-                    )}
-                  </form.Field>
               </div>
-                <div className="grid gap-4 md:grid-cols-2">
+
-                  <div className="space-y-1">
+              <div
-                    <Typography level="title-md" className="text-slate-900">
+                className="flex items-center justify-between rounded-2xl px-4 py-3"
+                style={{ border: "1px solid var(--joy-palette-divider)" }}
+              >
+                <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
                   {t("expiry-date")}
                 </Typography>
                 <form.Field name="expiry_date">
                   {(field) => (
-                        <Input
+                    <input
                       type="date"
                       value={field.state.value}
                       onChange={(e) => field.handleChange(e.target.value)}
                       onBlur={field.handleBlur}
-                          size="lg"
+                      className="border-none bg-transparent text-right font-semibold outline-none"
-                          variant="outlined"
+                      style={{ color: "var(--joy-palette-danger-solidBg)" }}
-                          className="rounded-2xl bg-white/90"
                     />
                   )}
                 </form.Field>
               </div>
-                  <div className="space-y-1">
+
-                    <Typography level="title-md" className="text-slate-900">
+              <div
-                      {t("bottling-date")}
+                className="flex items-center justify-between rounded-2xl px-4 py-3"
-                    </Typography>
+                style={{ border: "1px solid var(--joy-palette-divider)" }}
-                    <form.Field name="bottling_date">
+              >
-                      {(field) => (
+                <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
-                        <Input
-                          type="date"
-                          value={field.state.value}
-                          onChange={(e) => field.handleChange(e.target.value)}
-                          onBlur={field.handleBlur}
-                          size="lg"
-                          variant="outlined"
-                          className="rounded-2xl bg-white/90"
-                        />
-                      )}
-                    </form.Field>
-                  </div>
-                </div>
-              </div>
-              <div className="space-y-4">
-                <div className="rounded-2xl border border-white/70 bg-linear-to-br from-[#f7fbff] via-[#f2f6fb] to-[#eef3f9] p-5 shadow-[0_16px_40px_rgba(12,38,78,0.08)]">
-                  <Typography level="title-lg" className="text-slate-900">
-                    {t("inventory")}
-                  </Typography>
-                  <Divider className="my-3" />
-                  <div className="grid gap-4">
-                    <div className="space-y-1">
-                      <Typography level="title-md" className="text-slate-900">
-                        {t("amount")}
-                      </Typography>
-                      <form.Field name="amount">
-                        {(field) => (
-                          <Input
-                            type="number"
-                            color="neutral"
-                            id="amountInput"
-                            placeholder={t("amount")}
-                            value={field.state.value}
-                            variant="soft"
-                            size="lg"
-                            onChange={(e) => {
-                              const nextValue = Number(e.target.value);
-                              field.handleChange(
-                                Number.isNaN(nextValue) ? 0 : nextValue,
-                              );
-                            }}
-                            onBlur={field.handleBlur}
-                            className="rounded-2xl bg-white/80"
-                          />
-                        )}
-                      </form.Field>
-                    </div>
-                    <div className="space-y-1">
-                      <Typography level="title-md" className="text-slate-900">
-                        {t("price")}
-                      </Typography>
-                      <form.Field name="price">
-                        {(field) => (
-                          <Input
-                            type="text"
-                            value={field.state.value}
-                            onChange={(e) => field.handleChange(e.target.value)}
-                            onBlur={field.handleBlur}
-                            size="lg"
-                            variant="outlined"
-                            className="rounded-2xl bg-white/90"
-                          />
-                        )}
-                      </form.Field>
-                      <Typography level="body-sm" className="text-slate-500">
-                        {Cookies.get("currency")}
-                      </Typography>
-                    </div>
-                    <div className="space-y-1">
-                      <Typography level="title-md" className="text-slate-900">
                   {t("storage-place")}
                 </Typography>
                 <form.Field name="storage_location_uuid">
                   {(field) => (
                     <Select
                       value={field.state.value}
-                            onChange={(_event, value) =>
+                      onChange={(_event, value) => field.handleChange(value ?? "")}
-                              field.handleChange(value ?? "")
+                      variant="plain"
-                            }
+                      size="sm"
-                            size="lg"
-                            variant="outlined"
-                            className="rounded-2xl bg-white/90"
                     >
                       {storages?.map((storage) => (
                         <Option key={storage.uuid} value={storage.uuid}>
@@ -320,50 +208,27 @@ export const ProductQuickView = () => {
                   )}
                 </form.Field>
               </div>
-                  </div>
+
-                </div>
+              <Link
-              </div>
+                to="/app/view-product"
-            </div>
+                search={{ product: uuid }}
-            <div className="flex flex-wrap items-center justify-between gap-3">
+                className="block text-center text-sm font-semibold hover:underline"
-              <Typography level="body-sm" className="text-slate-500">
+                style={{ color: "var(--joy-palette-primary-solidBg)" }}
-                {t("product-details")}
-              </Typography>
-              <Button
-                type="submit"
-                loading={isPending}
-                size="lg"
-                className="rounded-2xl bg-[#0b6bcb] text-white shadow-[0_16px_36px_rgba(11,107,203,0.35)] transition hover:-translate-y-0.5 hover:bg-[#095aa7]"
               >
+                {t("open-full-details")}
+              </Link>
+
+              {alert.isAlert && (
+                <MyAlert type={alert.type} header={alert.header} text={alert.text} />
+              )}
+
+              <Button type="submit" loading={isPending} size="lg" color="primary" variant="solid" className="btn-lift w-full rounded-2xl">
                 {t("save")}
               </Button>
-            </div>
-            {alert.isAlert && (
-              <Alert
-                color={alert.type}
-                variant="soft"
-                className="rounded-2xl border border-rose-200/70 bg-rose-50/80 text-rose-700 shadow-[0_12px_30px_rgba(220,38,38,0.12)]"
-              >
-                {alert.header}
-                <br />
-                {alert.text}
-              </Alert>
-            )}
-            {success && (
-              <Alert
-                color="success"
-                variant="soft"
-                className="rounded-2xl border border-emerald-200/70 bg-emerald-50/80 text-emerald-700 shadow-[0_14px_30px_rgba(16,185,129,0.18)]"
-              >
-                <div className="flex w-full items-center justify-between">
-                  <Typography level="body-sm" className="text-emerald-700">
-                    {t("success")}
-                  </Typography>
-                </div>
-              </Alert>
-            )}
             </form>
-        </Box>
-      )}
           </>
+        )}
+      </div>
+    </div>
   );
 };

frontend/src/pages/Settings.tsx

@@ -1,27 +1,31 @@
-import {
+import { Button, CircularProgress, Divider, Input, Sheet, Typography } from "@mui/joy";
-  Input,
-  Button,
-  CircularProgress,
-  Typography,
-  Sheet,
-  Chip,
-  Divider,
-  Alert,
-} from "@mui/joy";
 import { useForm } from "@tanstack/react-form";
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import Cookies from "js-cookie";
 import { useTranslation } from "react-i18next";
-import type { SettingsIntf } from "../misc/interfaces";
+import type { AlertInterface, SettingsIntf } from "../misc/interfaces";
-import type { AlertInterface } from "../misc/interfaces";
 import type { ApiError } from "../utils/api/apiError";
-import { mutateSettings, fetchSettings } from "../utils/api/settings";
+import { fetchSettings, mutateSettings } from "../utils/api/settings";
 import { useEffect, useState } from "react";
+import { useColorScheme } from "@mui/joy/styles";
+import { ChevronRight } from "lucide-react";
 import { ChangePasswordModal } from "../components/modals/ChangePasswordModal";
+import { MyAlert } from "../components/MyAlert.tsx";
+import { PageHeader } from "../components/PageHeader.tsx";
+import { changeTranslation } from "../utils/uxFncs";
+import { useLogout } from "../hooks/useLogout.ts";
+
+const cardSx = {
+  border: "1px solid",
+  borderColor: "divider",
+  bgcolor: "background.surface",
+} as const;
 
 export const Settings = () => {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
   const queryClient = useQueryClient();
+  const { mode, setMode } = useColorScheme();
+  const { logout } = useLogout();
   const [modal, setModal] = useState(false);
   const [alert, setAlert] = useState<AlertInterface>({
     isAlert: false,
@@ -83,67 +87,58 @@ export const Settings = () => {
   const { mutate } = useMutation({
     mutationFn: (values: SettingsIntf) => mutateSettings(values),
     onSuccess() {
+      setAlert({
+        isAlert: true,
+        type: "success",
+        header: t("success"),
+        text: t("SE001"),
+      });
       queryClient.invalidateQueries({ queryKey: ["settings"] });
     },
     onError: showError,
   });
 
+  const segmentBtn = (active: boolean) => ({
+    className: "rounded-xl px-4",
+    variant: active ? ("solid" as const) : ("plain" as const),
+    color: active ? ("primary" as const) : ("neutral" as const),
+    sx: { color: active ? undefined : "var(--joy-palette-text-secondary)" },
+  });
+
   return (
     <>
-      <ChangePasswordModal isOpen={modal} setOpen={setModal} />
+      <ChangePasswordModal alert={setAlert} isOpen={modal} setOpen={setModal} />
       <div className="space-y-6">
-        <div className="flex flex-wrap items-center gap-3">
+        <PageHeader title={t("settings")} subtitle={t("settings-sub")} />
-          <div className="space-y-1">
-            <Typography level="h2" className="text-slate-900">
-              {t("settings")}
-            </Typography>
-            <Typography level="body-lg" className="text-slate-500">
-              {t("settings-sub")}
-            </Typography>
-          </div>
-          <Chip
-            variant="soft"
-            color="primary"
-            className="ml-auto rounded-full px-3"
-          >
-            {t("preferences")}
-          </Chip>
-        </div>
-      </div>
 
-      <Sheet className="mt-6 rounded-3xl border border-white/70 bg-white/80 p-6 shadow-[0_24px_60px_rgba(12,38,78,0.12)] backdrop-blur">
         {alert.isAlert && (
-          <Alert
+          <MyAlert type={alert.type} header={alert.header} text={alert.text} />
-            variant="soft"
-            color={alert.type}
-            className="mb-6 rounded-2xl border border-rose-200/70 bg-rose-50/80 text-rose-700 shadow-[0_12px_30px_rgba(220,38,38,0.12)]"
-          >
-            {alert.header}
-            <br />
-            {alert.text}
-          </Alert>
         )}
+
         {settingsPending ? (
           <div className="flex items-center justify-center py-16">
             <CircularProgress size="lg" />
           </div>
         ) : (
+          <div className="grid gap-6 lg:grid-cols-[1.1fr_0.9fr] lg:items-start">
+            <div className="space-y-6">
+              <Sheet className="rounded-3xl p-6" sx={cardSx}>
+                <Typography level="title-lg" sx={{ color: "var(--joy-palette-text-primary)" }}>
+                  {t("general")}
+                </Typography>
+                <Divider className="my-4" />
                 <form
-            className="space-y-6"
+                  className="space-y-5"
                   onSubmit={(e) => {
                     e.preventDefault();
                     form.handleSubmit();
                   }}
                 >
-            <div className="grid gap-6 lg:grid-cols-[1.1fr_0.9fr]">
+                  <div className="grid gap-5 sm:grid-cols-2">
-              <div className="space-y-5">
                     <div className="space-y-1">
-                  <Typography level="title-md" className="text-slate-900">
+                      <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
                         {t("app-name")}
                       </Typography>
-                  <Typography level="body-sm" className="text-slate-500">
-                    {t("app-name-sub")}
-                  </Typography>
                       <form.Field name="app-name">
                         {(field) => (
                           <Input
@@ -152,18 +147,18 @@ export const Settings = () => {
                             size="lg"
                             variant="outlined"
                             placeholder="Stockhome"
-                        className="rounded-2xl bg-white/90 shadow-[0_10px_24px_rgba(15,23,42,0.08)]"
+                            className="rounded-2xl"
                           />
                         )}
                       </form.Field>
+                      <Typography level="body-sm" className="normal-case font-normal" sx={{ color: "var(--joy-palette-text-tertiary)" }}>
+                        {t("app-name-sub")}
+                      </Typography>
                     </div>
                     <div className="space-y-1">
-                  <Typography level="title-md" className="text-slate-900">
+                      <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
                         {t("currency")}
                       </Typography>
-                  <Typography level="body-sm" className="text-slate-500">
-                    {t("currency-sub")}
-                  </Typography>
                       <form.Field name="currency">
                         {(field) => (
                           <Input
@@ -172,44 +167,123 @@ export const Settings = () => {
                             size="lg"
                             variant="outlined"
                             placeholder="EUR"
-                        className="rounded-2xl bg-white/90 shadow-[0_10px_24px_rgba(15,23,42,0.08)]"
+                            className="rounded-2xl"
                           />
                         )}
                       </form.Field>
+                      <Typography level="body-sm" className="normal-case font-normal" sx={{ color: "var(--joy-palette-text-tertiary)" }}>
+                        {t("currency-sub")}
+                      </Typography>
                     </div>
                   </div>
-              <div className="rounded-2xl border border-white/70 bg-linear-to-br from-[#f7fbff] via-[#f2f6fb] to-[#eef3f9] p-5 shadow-[0_16px_40px_rgba(12,38,78,0.08)]">
+                  <div className="flex justify-end">
-                <Typography level="title-lg" className="text-slate-900">
+                    <Button type="submit" size="lg" color="primary" className="btn-lift rounded-2xl">
+                      {t("save")}
+                    </Button>
+                  </div>
+                </form>
+              </Sheet>
+
+              <Sheet className="rounded-3xl p-6" sx={cardSx}>
+                <Typography level="title-lg" sx={{ color: "var(--joy-palette-text-primary)" }}>
+                  {t("appearance-language")}
+                </Typography>
+                <Divider className="my-4" />
+                <div className="space-y-5">
+                  <div className="space-y-2">
+                    <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
+                      {t("theme")}
+                    </Typography>
+                    <div className="inline-flex gap-1 rounded-2xl border border-solid p-1" style={{ borderColor: "var(--joy-palette-divider)" }}>
+                      <Button {...segmentBtn(mode === "light")} onClick={() => setMode("light")}>
+                        {t("theme-light")}
+                      </Button>
+                      <Button {...segmentBtn(mode === "dark")} onClick={() => setMode("dark")}>
+                        {t("theme-dark")}
+                      </Button>
+                      <Button {...segmentBtn(mode === "system")} onClick={() => setMode("system")}>
+                        {t("theme-system")}
+                      </Button>
+                    </div>
+                  </div>
+                  <div className="space-y-2">
+                    <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
+                      {t("language")}
+                    </Typography>
+                    <div className="inline-flex gap-1 rounded-2xl border border-solid p-1" style={{ borderColor: "var(--joy-palette-divider)" }}>
+                      <Button
+                        {...segmentBtn(i18n.language === "de")}
+                        onClick={() => i18n.language !== "de" && changeTranslation()}
+                      >
+                        Deutsch
+                      </Button>
+                      <Button
+                        {...segmentBtn(i18n.language === "en")}
+                        onClick={() => i18n.language !== "en" && changeTranslation()}
+                      >
+                        English
+                      </Button>
+                    </div>
+                  </div>
+                </div>
+              </Sheet>
+
+              <Sheet className="rounded-3xl p-6" sx={cardSx}>
+                <Typography level="title-lg" sx={{ color: "var(--joy-palette-text-primary)" }}>
+                  {t("account")}
+                </Typography>
+                <Divider className="my-4" />
+                <div className="space-y-4">
+                  <button
+                    type="button"
+                    onClick={() => setModal(true)}
+                    className="flex w-full items-center justify-between rounded-2xl px-1 py-1 text-left"
+                  >
+                    <div>
+                      <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
+                        {t("change-password")}
+                      </Typography>
+                    </div>
+                    <ChevronRight size={18} color="var(--joy-palette-text-tertiary)" />
+                  </button>
+                  <Divider />
+                  <div className="flex items-center justify-between">
+                    <div>
+                      <Typography level="title-md" sx={{ color: "var(--joy-palette-danger-solidBg)" }}>
+                        {t("sign-out")}
+                      </Typography>
+                      <Typography level="body-sm" className="normal-case font-normal" sx={{ color: "var(--joy-palette-text-tertiary)" }}>
+                        {t("sign-out-sub")}
+                      </Typography>
+                    </div>
+                    <Button color="danger" variant="outlined" className="rounded-2xl" onClick={logout}>
+                      {t("logout")}
+                    </Button>
+                  </div>
+                </div>
+              </Sheet>
+            </div>
+
+            <div
+              className="rounded-3xl p-6"
+              style={{
+                border: "1px solid var(--joy-palette-divider)",
+                background:
+                  "linear-gradient(to bottom right, var(--joy-palette-primary-50), var(--joy-palette-background-level1), var(--joy-palette-background-level2))",
+              }}
+            >
+              <Typography level="title-lg" sx={{ color: "var(--joy-palette-text-primary)" }}>
                 {t("quick-tips")}
               </Typography>
               <Divider className="my-3" />
-                <div className="space-y-3 text-md text-slate-600">
+              <div className="space-y-3 text-md" style={{ color: "var(--joy-palette-text-secondary)" }}>
                 <p>{t("quick-tips-1")}</p>
                 <p>{t("quick-tips-2")}</p>
               </div>
             </div>
           </div>
-            <div className="flex flex-wrap items-center justify-between gap-3">
-              <Button
-                type="submit"
-                size="lg"
-                color="primary"
-                className="rounded-2xl text-white shadow-[0_16px_36px_rgba(11,107,203,0.35)] transition hover:-translate-y-0.5 hover:bg-[#095aa7]"
-              >
-                {t("save")}
-              </Button>
-              <Button
-                onClick={() => setModal(true)}
-                size="lg"
-                color="warning"
-                className="rounded-2xl text-white shadow-[0_16px_36px_rgba(11,107,203,0.35)] transition hover:-translate-y-0.5 hover:bg-[#095aa7]"
-              >
-                {t("change-password")}
-              </Button>
-            </div>
-          </form>
         )}
-      </Sheet>
+      </div>
     </>
   );
 };

frontend/src/pages/Storages.tsx

@@ -1,21 +1,16 @@
 import { useQuery } from "@tanstack/react-query";
 import { getStorages } from "../utils/api/storages";
-import {
+import { getProducts } from "../utils/api/products";
-  Sheet,
+import { Button, CircularProgress, Sheet, Table, Typography } from "@mui/joy";
-  Table,
-  Button,
-  CircularProgress,
-  Typography,
-  Alert,
-} from "@mui/joy";
 import { useTranslation } from "react-i18next";
-import type { Storage } from "../misc/interfaces";
+import type { AlertInterface, Storage } from "../misc/interfaces";
-import type { AlertInterface } from "../misc/interfaces";
 import type { ApiError } from "../utils/api/apiError";
 import { StorageRow } from "../components/StorageRow";
 import { useEffect, useState } from "react";
 import { AddStorageModal } from "../components/modals/AddStorageModal";
-import AddIcon from "@mui/icons-material/Add";
+import { AlertTriangle, Plus } from "lucide-react";
+import { MyAlert } from "../components/MyAlert.tsx";
+import { PageHeader } from "../components/PageHeader.tsx";
 
 export const Storages = () => {
   const { t } = useTranslation();
@@ -47,6 +42,13 @@ export const Storages = () => {
     queryFn: () => getStorages(),
   });
 
+  // Already cached by the sidebar/inventory query — just reused here for the count.
+  const { data: products } = useQuery<{ amount?: number }[]>({
+    queryKey: ["products"],
+    queryFn: getProducts,
+  });
+  const itemsStored = (products ?? []).reduce((sum, product) => sum + (product?.amount ?? 0), 0);
+
   useEffect(() => {
     if (storagesError && storagesErrorObj) {
       showError(storagesErrorObj);
@@ -56,107 +58,102 @@ export const Storages = () => {
   return (
     <>
       <div className="flex flex-col gap-4">
-        <div className="min-w-65 space-y-2">
+        <PageHeader
-          <Typography level="h2" className="text-slate-900">
+          title={t("storages")}
-            {t("storages")}
+          subtitle={t("storages-sub", { count: storages?.length ?? 0, items: itemsStored })}
-          </Typography>
+          actions={
-          <Typography level="body-lg" className="text-slate-500">
+            <Button startDecorator={<Plus size={16} />} onClick={() => setModal(true)} variant="solid" className="btn-lift rounded-2xl">
+              {t("new-storage")}
+            </Button>
+          }
+        />
+        <AddStorageModal isOpen={modal} setOpen={setModal} />
+        <div
+          className="flex items-start gap-3 rounded-2xl border border-solid px-4 py-3"
+          style={{
+            borderColor: "var(--joy-palette-warning-softBg)",
+            backgroundColor: "var(--joy-palette-warning-softBg)",
+            color: "var(--joy-palette-warning-softColor)",
+          }}
+        >
+          <AlertTriangle size={18} className="mt-0.5 shrink-0" />
+          <Typography level="body-lg" sx={{ color: "inherit" }}>
             {t("storage-delete-info")}
           </Typography>
         </div>
-        <div className="flex items-center gap-3">
-          <Button
-            startDecorator={<AddIcon />}
-            onClick={() => setModal(true)}
-            variant="solid"
-            className="rounded-full px-5 py-2 text-base font-semibold shadow-sm"
-          >
-            {t("add")}
-          </Button>
-        </div>
         {alert.isAlert && (
-          <Alert
+          <MyAlert type={alert.type} header={alert.header} text={alert.text} />
-            variant="soft"
-            color={alert.type}
-            className="rounded-2xl border border-rose-200/70 bg-rose-50/80 text-rose-700 shadow-[0_12px_30px_rgba(220,38,38,0.12)]"
-          >
-            {alert.header}
-            <br />
-            {alert.text}
-          </Alert>
         )}
       </div>
 
       <Sheet
         variant="outlined"
-        className="mt-6 flex min-h-0 flex-col overflow-hidden rounded-2xl border border-slate-200 bg-white/80 shadow-sm sm:h-[calc(100vh-260px)]"
+        className="mt-6 flex min-h-0 w-full max-w-full flex-col overflow-hidden rounded-2xl sm:h-[calc(100vh-300px)]"
+        sx={{
+          border: "1px solid",
+          borderColor: "divider",
+          bgcolor: "background.surface",
+        }}
       >
-        <AddStorageModal isOpen={modal} setOpen={setModal} />
         {isLoading ? (
           <div className="flex items-center justify-center py-16">
             <CircularProgress size="lg" />
           </div>
         ) : (
-          <>
-            <div className="flex items-center justify-between border-b border-slate-200 px-6 py-4 text-slate-700">
-              <Typography level="body-lg" fontWeight="bold">
-                {t("storages")}
-              </Typography>
-            </div>
           <div className="flex-1 overflow-auto">
             <Table
               stickyHeader
               stripe="odd"
               variant="plain"
               hoverRow
-                className="min-w-240 text-slate-700"
+              className="w-full"
               sx={{
-                  "--TableCell-headBackground":
+                tableLayout: "fixed",
-                    "var(--joy-palette-background-surface)",
+                color: "var(--joy-palette-text-secondary)",
+                "--TableCell-headBackground": "var(--joy-palette-background-level1)",
                 "& thead": {
                   position: "sticky",
                   top: 0,
                   zIndex: 3,
-                    backgroundColor: "rgb(248 250 252)",
+                  backgroundColor: "var(--joy-palette-background-level1)",
                 },
                 "& thead tr": {
-                    backgroundColor: "rgb(248 250 252)",
+                  backgroundColor: "var(--joy-palette-background-level1)",
-                  },
-                  "& thead th:nth-child(2)": {
-                    width: "40%",
-                  },
-                  "& thead th:nth-child(3)": {
-                    width: "14%",
                 },
                 "& thead th": {
                   zIndex: 2,
-                    backgroundColor: "rgb(248 250 252)",
+                  backgroundColor: "var(--joy-palette-background-level1)",
                   backgroundImage: "none",
+                  color: "var(--joy-palette-text-secondary)",
+                },
+                "& thead th:nth-child(1)": { width: "26%", minWidth: "140px" },
+                "& thead th:nth-child(2)": { width: "34%", minWidth: "160px" },
+                "& thead th:nth-child(3)": { width: "16%", minWidth: "110px" },
+                "& thead th:nth-child(4)": { width: "16%", minWidth: "110px" },
+                "& thead th:nth-child(5)": { width: "8%", minWidth: "90px" },
+                "& tr > *:nth-child(n+3)": { textAlign: "left" },
+                "& tbody tr": {
+                  borderTop: "1px solid var(--joy-palette-divider)",
+                  transition: "background-color 120ms ease",
                 },
-                  "& tr > *:nth-child(n+4)": { textAlign: "left" },
               }}
             >
               <thead>
-                  <tr className="text-slate-600">
+                <tr>
-                    <th className="px-6 py-4">{t("storage-name")}</th>
+                  <th className="px-3 py-4">{t("storage-name")}</th>
-                    <th className="px-6 py-4">{t("description")}</th>
+                  <th className="px-3 py-4">{t("description")}</th>
-                    <th className="px-6 py-4">{t("created-at")}</th>
+                  <th className="px-3 py-4">{t("created-at")}</th>
-                    <th className="px-6 py-4">{t("updated-at")}</th>
+                  <th className="px-3 py-4">{t("updated-at")}</th>
-                    <th className="px-6 py-4 text-right"></th>
+                  <th className="px-3 py-4 text-right"></th>
                 </tr>
               </thead>
               <tbody>
                 {storages?.map((storage: Storage) => (
-                    <StorageRow
+                  <StorageRow key={storage.uuid} storage={storage} onError={showError} />
-                      key={storage.uuid}
-                      storage={storage}
-                      onError={showError}
-                    />
                 ))}
               </tbody>
             </Table>
           </div>
-          </>
         )}
       </Sheet>
     </>

frontend/src/pages/ViewProduct.tsx

@@ -1,32 +1,35 @@
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import { getStorages } from "../utils/api/storages.ts";
-import {
+import { Button, CircularProgress, Input, Option, Select, Typography } from "@mui/joy";
-  CircularProgress,
-  Typography,
-  Select,
-  Option,
-  Input,
-  Button,
-  Chip,
-  Divider,
-  Box,
-  Alert,
-} from "@mui/joy";
 import { useTranslation } from "react-i18next";
 import { useEffect, useState } from "react";
 import { useForm } from "@tanstack/react-form";
-import { mutateProduct, getProductDetails } from "../utils/api/products.ts";
+import { useNavigate } from "@tanstack/react-router";
+import {
+  deleteSelectedProducts,
+  getProductDetails,
+  mutateProduct,
+} from "../utils/api/products.ts";
 import { toInputDate } from "../utils/uxFncs";
 import type {
-  ProductFormValues,
-  productDetailsInterface,
   AlertInterface,
+  productDetailsInterface,
+  ProductFormValues,
   Storage,
 } from "../misc/interfaces";
 import type { ApiError } from "../utils/api/apiError";
-import QrCodeIcon from "@mui/icons-material/QrCode";
+import { QrCode, Trash2 } from "lucide-react";
 import Cookies from "js-cookie";
 import QRCode from "qrcode";
+import { AmountStepper } from "../components/AmountStepper.tsx";
+import { ExpiryBadge } from "../components/ProductStatusBar.tsx";
+import { MyAlert } from "../components/MyAlert.tsx";
+
+const cardSx = {
+  border: "1px solid",
+  borderColor: "divider",
+  bgcolor: "background.surface",
+} as const;
 
 interface ViewProductProps {
   uuid: string;
@@ -35,8 +38,8 @@ interface ViewProductProps {
 export const ViewProduct = (props: ViewProductProps) => {
   const uuid = props.uuid;
   const { t } = useTranslation();
+  const navigate = useNavigate();
   const queryClient = useQueryClient();
-  const [success, setSuccess] = useState(false);
   const [alert, setAlert] = useState<AlertInterface>({
     isAlert: false,
     type: "neutral",
@@ -106,48 +109,43 @@ export const ViewProduct = (props: ViewProductProps) => {
   });
 
   const { mutate, isPending } = useMutation({
-    mutationFn: ({
+    mutationFn: ({ values, uuid }: { values: ProductFormValues; uuid: string }) =>
-      values,
+      mutateProduct(values, uuid),
-      uuid,
-    }: {
-      values: ProductFormValues;
-      uuid: string;
-    }) => mutateProduct(values, uuid),
     onSuccess: (_data, variables) => {
-      setSuccess(true);
+      setAlert({ isAlert: true, type: "success", header: t("success"), text: t("save") });
       queryClient.invalidateQueries({ queryKey: ["product", variables.uuid] });
     },
     onError: showError,
   });
 
+  const { mutate: deleteProduct, isPending: isDeleting } = useMutation({
+    mutationFn: () => deleteSelectedProducts([uuid]),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ["products"] });
+      void navigate({ to: "/app/inventory" });
+    },
+    onError: showError,
+  });
+
   useEffect(() => {
     if (!productDetails) {
       return;
     }
 
     form.setFieldValue("amount", productDetails.amount ?? 0);
-    form.setFieldValue(
+    form.setFieldValue("bottling_date", toInputDate(productDetails.bottling_date));
-      "bottling_date",
-      toInputDate(productDetails.bottling_date),
-    );
     form.setFieldValue("description", productDetails.description ?? "");
     form.setFieldValue("expiry_date", toInputDate(productDetails.expiry_date));
     form.setFieldValue("name", productDetails.name ?? "");
     form.setFieldValue("price", productDetails.price ?? "");
-    form.setFieldValue(
+    form.setFieldValue("storage_location_uuid", productDetails.storage_location_uuid ?? "");
-      "storage_location_uuid",
-      productDetails.storage_location_uuid ?? "",
-    );
   }, [form, productDetails]);
 
   const downloadQRcode = async () => {
     const baseUrl: string = `${window.location.protocol}//${window.location.host}`;
     const url = `${baseUrl}/app/quick-view/product?uuid=${uuid}`;
 
-    const dataUrl = await QRCode.toDataURL(url, {
+    const dataUrl = await QRCode.toDataURL(url, { width: 300, margin: 2 });
-      width: 300,
-      margin: 2,
-    });
 
     const link = document.createElement("a");
     link.download = "qrcode.png";
@@ -156,26 +154,27 @@ export const ViewProduct = (props: ViewProductProps) => {
   };
 
   return (
-    <>
     <div className="space-y-6">
       <div className="flex flex-wrap items-center gap-3">
-          <div className="space-y-1">
+        <Typography level="h2" sx={{ color: "var(--joy-palette-text-primary)" }}>
-            <Typography level="h2" className="text-slate-900">
+          {isSuccess ? productDetails.name : t("product-details")}
-              {t("product-details")}
         </Typography>
-          </div>
+        {isSuccess && <ExpiryBadge expiryDate={productDetails.expiry_date} />}
-          <Chip
+        <Button
-            variant="soft"
+          startDecorator={<Trash2 size={16} />}
-            color="primary"
+          color="danger"
-            className="ml-auto rounded-full px-3"
+          variant="outlined"
+          size="sm"
+          className="ml-auto rounded-2xl"
+          loading={isDeleting}
+          onClick={() => deleteProduct()}
         >
-            {t("details")}
+          {t("delete")}
-          </Chip>
+        </Button>
       </div>
       {productDetailsLoading && <CircularProgress size="sm" />}
-      </div>
+
       {isSuccess && (
-        <Box className="mt-6 rounded-3xl border border-white/70 bg-white/80 p-6 shadow-[0_24px_60px_rgba(12,38,78,0.12)] backdrop-blur">
         <form
           className="space-y-6"
           onSubmit={(e) => {
@@ -183,10 +182,14 @@ export const ViewProduct = (props: ViewProductProps) => {
             form.handleSubmit();
           }}
         >
-            <div className="grid gap-5 lg:grid-cols-[1.2fr_1fr]">
+          <div className="grid gap-5 lg:grid-cols-2">
-              <div className="space-y-4">
+            <div className="rounded-3xl p-6" style={cardSx}>
+              <Typography level="title-lg" sx={{ color: "var(--joy-palette-text-primary)" }}>
+                {t("product")}
+              </Typography>
+              <div className="mt-4 space-y-4">
                 <div className="space-y-1">
-                  <Typography level="title-md" className="text-slate-900">
+                  <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
                     {t("product-name")}
                   </Typography>
                   <form.Field name="name">
@@ -198,13 +201,13 @@ export const ViewProduct = (props: ViewProductProps) => {
                         onBlur={field.handleBlur}
                         size="lg"
                         variant="outlined"
-                        className="rounded-2xl bg-white/90 shadow-[0_10px_24px_rgba(15,23,42,0.08)]"
+                        className="rounded-2xl"
                       />
                     )}
                   </form.Field>
                 </div>
                 <div className="space-y-1">
-                  <Typography level="title-md" className="text-slate-900">
+                  <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
                     {t("description")}
                   </Typography>
                   <form.Field name="description">
@@ -216,32 +219,14 @@ export const ViewProduct = (props: ViewProductProps) => {
                         onBlur={field.handleBlur}
                         size="lg"
                         variant="outlined"
-                        className="rounded-2xl bg-white/90 shadow-[0_10px_24px_rgba(15,23,42,0.08)]"
+                        className="rounded-2xl"
                       />
                     )}
                   </form.Field>
                 </div>
-                <div className="grid gap-4 md:grid-cols-2">
+                <div className="grid gap-4 sm:grid-cols-2">
                   <div className="space-y-1">
-                    <Typography level="title-md" className="text-slate-900">
+                    <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
-                      {t("expiry-date")}
-                    </Typography>
-                    <form.Field name="expiry_date">
-                      {(field) => (
-                        <Input
-                          type="date"
-                          value={field.state.value}
-                          onChange={(e) => field.handleChange(e.target.value)}
-                          onBlur={field.handleBlur}
-                          size="lg"
-                          variant="outlined"
-                          className="rounded-2xl bg-white/90"
-                        />
-                      )}
-                    </form.Field>
-                  </div>
-                  <div className="space-y-1">
-                    <Typography level="title-md" className="text-slate-900">
                       {t("bottling-date")}
                     </Typography>
                     <form.Field name="bottling_date">
@@ -253,48 +238,54 @@ export const ViewProduct = (props: ViewProductProps) => {
                           onBlur={field.handleBlur}
                           size="lg"
                           variant="outlined"
-                          className="rounded-2xl bg-white/90"
+                          className="rounded-2xl"
+                        />
+                      )}
+                    </form.Field>
+                  </div>
+                  <div className="space-y-1">
+                    <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
+                      {t("expiry-date")}
+                    </Typography>
+                    <form.Field name="expiry_date">
+                      {(field) => (
+                        <Input
+                          type="date"
+                          value={field.state.value}
+                          onChange={(e) => field.handleChange(e.target.value)}
+                          onBlur={field.handleBlur}
+                          size="lg"
+                          variant="outlined"
+                          className="rounded-2xl"
                         />
                       )}
                     </form.Field>
                   </div>
                 </div>
               </div>
-              <div className="space-y-4">
+            </div>
-                <div className="rounded-2xl border border-white/70 bg-linear-to-br from-[#f7fbff] via-[#f2f6fb] to-[#eef3f9] p-5 shadow-[0_16px_40px_rgba(12,38,78,0.08)]">
+
-                  <Typography level="title-lg" className="text-slate-900">
+            <div className="rounded-3xl p-6" style={cardSx}>
+              <Typography level="title-lg" sx={{ color: "var(--joy-palette-text-primary)" }}>
                 {t("inventory")}
               </Typography>
-                  <Divider className="my-3" />
+              <div className="mt-4 space-y-4">
-                  <div className="grid gap-4">
                 <div className="space-y-1">
-                      <Typography level="title-md" className="text-slate-900">
+                  <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
                     {t("amount")}
                   </Typography>
                   <form.Field name="amount">
                     {(field) => (
-                          <Input
+                      <AmountStepper
-                            type="number"
-                            color="neutral"
-                            id="amountInput"
-                            placeholder={t("amount")}
                         value={field.state.value}
-                            variant="soft"
+                        onChange={field.handleChange}
-                            size="lg"
-                            onChange={(e) => {
-                              const nextValue = Number(e.target.value);
-                              field.handleChange(
-                                Number.isNaN(nextValue) ? 0 : nextValue,
-                              );
-                            }}
                         onBlur={field.handleBlur}
-                            className="rounded-2xl bg-white/80"
                       />
                     )}
                   </form.Field>
                 </div>
                 <div className="space-y-1">
-                      <Typography level="title-md" className="text-slate-900">
+                  <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
                     {t("price")}
                   </Typography>
                   <form.Field name="price">
@@ -306,28 +297,28 @@ export const ViewProduct = (props: ViewProductProps) => {
                         onBlur={field.handleBlur}
                         size="lg"
                         variant="outlined"
-                            className="rounded-2xl bg-white/90"
+                        className="rounded-2xl"
+                        endDecorator={
+                          <Typography level="body-sm" sx={{ color: "var(--joy-palette-text-tertiary)" }}>
+                            {Cookies.get("currency")}
+                          </Typography>
+                        }
                       />
                     )}
                   </form.Field>
-                      <Typography level="body-sm" className="text-slate-500">
-                        {Cookies.get("currency")}
-                      </Typography>
                 </div>
                 <div className="space-y-1">
-                      <Typography level="title-md" className="text-slate-900">
+                  <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
                     {t("storage-place")}
                   </Typography>
                   <form.Field name="storage_location_uuid">
                     {(field) => (
                       <Select
                         value={field.state.value}
-                            onChange={(_event, value) =>
+                        onChange={(_event, value) => field.handleChange(value ?? "")}
-                              field.handleChange(value ?? "")
-                            }
                         size="lg"
                         variant="outlined"
-                            className="rounded-2xl bg-white/90"
+                        className="rounded-2xl"
                       >
                         {storages?.map((storage) => (
                           <Option key={storage.uuid} value={storage.uuid}>
@@ -339,58 +330,46 @@ export const ViewProduct = (props: ViewProductProps) => {
                   </form.Field>
                 </div>
               </div>
-                </div>
+
-              </div>
+              <div
-            </div>
+                className="mt-4 flex items-center gap-3 rounded-2xl p-4"
-            <div className="flex flex-wrap items-center justify-between gap-3">
+                style={{ backgroundColor: "var(--joy-palette-background-level1)" }}
-              <Typography level="body-sm" className="text-slate-500">
+              >
-                {t("product-details")}
+                <QrCode size={20} color="var(--joy-palette-text-tertiary)" className="shrink-0" />
+                <div className="min-w-0">
+                  <Typography level="title-md" sx={{ color: "var(--joy-palette-text-primary)" }}>
+                    {t("jar-label")}
                   </Typography>
+                  <Typography level="body-sm" className="normal-case font-normal" sx={{ color: "var(--joy-palette-text-tertiary)" }}>
+                    {t("jar-label-hint")}
+                  </Typography>
+                </div>
+              </div>
+            </div>
+          </div>
+
+          <div className="flex flex-wrap items-center justify-end gap-3">
             <Button
-                startDecorator={<QrCodeIcon />}
+              type="button"
-                loading={isPending}
+              startDecorator={<QrCode size={16} />}
               onClick={() => downloadQRcode()}
               size="lg"
-                className="rounded-2xl bg-[#0b6bcb] text-white shadow-[0_16px_36px_rgba(11,107,203,0.35)] transition hover:-translate-y-0.5 hover:bg-[#095aa7]"
+              variant="outlined"
+              color="neutral"
+              className="rounded-2xl"
             >
               {t("download-qr-code")}
             </Button>
-              <Button
+            <Button type="submit" loading={isPending} size="lg" color="primary" variant="solid" className="btn-lift rounded-2xl">
-                type="submit"
-                loading={isPending}
-                size="lg"
-                className="rounded-2xl bg-[#0b6bcb] text-white shadow-[0_16px_36px_rgba(11,107,203,0.35)] transition hover:-translate-y-0.5 hover:bg-[#095aa7]"
-              >
               {t("save")}
             </Button>
           </div>
+
           {alert.isAlert && (
-              <Alert
+            <MyAlert type={alert.type} header={alert.header} text={alert.text} />
-                color={alert.type}
-                variant="soft"
-                className="rounded-2xl border border-rose-200/70 bg-rose-50/80 text-rose-700 shadow-[0_12px_30px_rgba(220,38,38,0.12)]"
-              >
-                {alert.header}
-                <br />
-                {alert.text}
-              </Alert>
-            )}
-            {success && (
-              <Alert
-                color="success"
-                variant="soft"
-                className="rounded-2xl border border-emerald-200/70 bg-emerald-50/80 text-emerald-700 shadow-[0_14px_30px_rgba(16,185,129,0.18)]"
-              >
-                <div className="flex w-full items-center justify-between">
-                  <Typography level="body-sm" className="text-emerald-700">
-                    {t("success")}
-                  </Typography>
-                </div>
-              </Alert>
           )}
         </form>
-        </Box>
       )}
-    </>
+    </div>
   );
 };

frontend/src/routeTree.gen.ts

@@ -12,12 +12,13 @@ import { Route as rootRouteImport } from './routes/__root'
 import { Route as LoginRouteImport } from './routes/login'
 import { Route as IndexRouteImport } from './routes/index'
 import { Route as AppHiddenLayoutRouteImport } from './routes/app/_hiddenLayout'
-import { Route as AppHiddenLayoutViewProductRouteImport } from './routes/app/_hiddenLayout/view-product'
+import { Route as AppHiddenLayoutAuthedRouteImport } from './routes/app/_hiddenLayout/_authed'
-import { Route as AppHiddenLayoutStoragesRouteImport } from './routes/app/_hiddenLayout/storages'
-import { Route as AppHiddenLayoutInventoryRouteImport } from './routes/app/_hiddenLayout/inventory'
-import { Route as AppHiddenLayoutAppSettingsRouteImport } from './routes/app/_hiddenLayout/app-settings'
-import { Route as AppHiddenLayoutAddProductRouteImport } from './routes/app/_hiddenLayout/add-product'
 import { Route as AppHiddenLayoutQuickViewProductRouteImport } from './routes/app/_hiddenLayout/quick-view/product'
+import { Route as AppHiddenLayoutAuthedViewProductRouteImport } from './routes/app/_hiddenLayout/_authed/view-product'
+import { Route as AppHiddenLayoutAuthedStoragesRouteImport } from './routes/app/_hiddenLayout/_authed/storages'
+import { Route as AppHiddenLayoutAuthedInventoryRouteImport } from './routes/app/_hiddenLayout/_authed/inventory'
+import { Route as AppHiddenLayoutAuthedAppSettingsRouteImport } from './routes/app/_hiddenLayout/_authed/app-settings'
+import { Route as AppHiddenLayoutAuthedAddProductRouteImport } from './routes/app/_hiddenLayout/_authed/add-product'
 
 const LoginRoute = LoginRouteImport.update({
   id: '/login',
@@ -34,62 +35,67 @@ const AppHiddenLayoutRoute = AppHiddenLayoutRouteImport.update({
   path: '/app',
   getParentRoute: () => rootRouteImport,
 } as any)
-const AppHiddenLayoutViewProductRoute =
+const AppHiddenLayoutAuthedRoute = AppHiddenLayoutAuthedRouteImport.update({
-  AppHiddenLayoutViewProductRouteImport.update({
+  id: '/_authed',
-    id: '/view-product',
-    path: '/view-product',
-    getParentRoute: () => AppHiddenLayoutRoute,
-  } as any)
-const AppHiddenLayoutStoragesRoute = AppHiddenLayoutStoragesRouteImport.update({
-  id: '/storages',
-  path: '/storages',
   getParentRoute: () => AppHiddenLayoutRoute,
 } as any)
-const AppHiddenLayoutInventoryRoute =
-  AppHiddenLayoutInventoryRouteImport.update({
-    id: '/inventory',
-    path: '/inventory',
-    getParentRoute: () => AppHiddenLayoutRoute,
-  } as any)
-const AppHiddenLayoutAppSettingsRoute =
-  AppHiddenLayoutAppSettingsRouteImport.update({
-    id: '/app-settings',
-    path: '/app-settings',
-    getParentRoute: () => AppHiddenLayoutRoute,
-  } as any)
-const AppHiddenLayoutAddProductRoute =
-  AppHiddenLayoutAddProductRouteImport.update({
-    id: '/add-product',
-    path: '/add-product',
-    getParentRoute: () => AppHiddenLayoutRoute,
-  } as any)
 const AppHiddenLayoutQuickViewProductRoute =
   AppHiddenLayoutQuickViewProductRouteImport.update({
     id: '/quick-view/product',
     path: '/quick-view/product',
     getParentRoute: () => AppHiddenLayoutRoute,
   } as any)
+const AppHiddenLayoutAuthedViewProductRoute =
+  AppHiddenLayoutAuthedViewProductRouteImport.update({
+    id: '/view-product',
+    path: '/view-product',
+    getParentRoute: () => AppHiddenLayoutAuthedRoute,
+  } as any)
+const AppHiddenLayoutAuthedStoragesRoute =
+  AppHiddenLayoutAuthedStoragesRouteImport.update({
+    id: '/storages',
+    path: '/storages',
+    getParentRoute: () => AppHiddenLayoutAuthedRoute,
+  } as any)
+const AppHiddenLayoutAuthedInventoryRoute =
+  AppHiddenLayoutAuthedInventoryRouteImport.update({
+    id: '/inventory',
+    path: '/inventory',
+    getParentRoute: () => AppHiddenLayoutAuthedRoute,
+  } as any)
+const AppHiddenLayoutAuthedAppSettingsRoute =
+  AppHiddenLayoutAuthedAppSettingsRouteImport.update({
+    id: '/app-settings',
+    path: '/app-settings',
+    getParentRoute: () => AppHiddenLayoutAuthedRoute,
+  } as any)
+const AppHiddenLayoutAuthedAddProductRoute =
+  AppHiddenLayoutAuthedAddProductRouteImport.update({
+    id: '/add-product',
+    path: '/add-product',
+    getParentRoute: () => AppHiddenLayoutAuthedRoute,
+  } as any)
 
 export interface FileRoutesByFullPath {
   '/': typeof IndexRoute
   '/login': typeof LoginRoute
-  '/app': typeof AppHiddenLayoutRouteWithChildren
+  '/app': typeof AppHiddenLayoutAuthedRouteWithChildren
-  '/app/add-product': typeof AppHiddenLayoutAddProductRoute
+  '/app/add-product': typeof AppHiddenLayoutAuthedAddProductRoute
-  '/app/app-settings': typeof AppHiddenLayoutAppSettingsRoute
+  '/app/app-settings': typeof AppHiddenLayoutAuthedAppSettingsRoute
-  '/app/inventory': typeof AppHiddenLayoutInventoryRoute
+  '/app/inventory': typeof AppHiddenLayoutAuthedInventoryRoute
-  '/app/storages': typeof AppHiddenLayoutStoragesRoute
+  '/app/storages': typeof AppHiddenLayoutAuthedStoragesRoute
-  '/app/view-product': typeof AppHiddenLayoutViewProductRoute
+  '/app/view-product': typeof AppHiddenLayoutAuthedViewProductRoute
   '/app/quick-view/product': typeof AppHiddenLayoutQuickViewProductRoute
 }
 export interface FileRoutesByTo {
   '/': typeof IndexRoute
   '/login': typeof LoginRoute
-  '/app': typeof AppHiddenLayoutRouteWithChildren
+  '/app': typeof AppHiddenLayoutAuthedRouteWithChildren
-  '/app/add-product': typeof AppHiddenLayoutAddProductRoute
+  '/app/add-product': typeof AppHiddenLayoutAuthedAddProductRoute
-  '/app/app-settings': typeof AppHiddenLayoutAppSettingsRoute
+  '/app/app-settings': typeof AppHiddenLayoutAuthedAppSettingsRoute
-  '/app/inventory': typeof AppHiddenLayoutInventoryRoute
+  '/app/inventory': typeof AppHiddenLayoutAuthedInventoryRoute
-  '/app/storages': typeof AppHiddenLayoutStoragesRoute
+  '/app/storages': typeof AppHiddenLayoutAuthedStoragesRoute
-  '/app/view-product': typeof AppHiddenLayoutViewProductRoute
+  '/app/view-product': typeof AppHiddenLayoutAuthedViewProductRoute
   '/app/quick-view/product': typeof AppHiddenLayoutQuickViewProductRoute
 }
 export interface FileRoutesById {
@@ -97,11 +103,12 @@ export interface FileRoutesById {
   '/': typeof IndexRoute
   '/login': typeof LoginRoute
   '/app/_hiddenLayout': typeof AppHiddenLayoutRouteWithChildren
-  '/app/_hiddenLayout/add-product': typeof AppHiddenLayoutAddProductRoute
+  '/app/_hiddenLayout/_authed': typeof AppHiddenLayoutAuthedRouteWithChildren
-  '/app/_hiddenLayout/app-settings': typeof AppHiddenLayoutAppSettingsRoute
+  '/app/_hiddenLayout/_authed/add-product': typeof AppHiddenLayoutAuthedAddProductRoute
-  '/app/_hiddenLayout/inventory': typeof AppHiddenLayoutInventoryRoute
+  '/app/_hiddenLayout/_authed/app-settings': typeof AppHiddenLayoutAuthedAppSettingsRoute
-  '/app/_hiddenLayout/storages': typeof AppHiddenLayoutStoragesRoute
+  '/app/_hiddenLayout/_authed/inventory': typeof AppHiddenLayoutAuthedInventoryRoute
-  '/app/_hiddenLayout/view-product': typeof AppHiddenLayoutViewProductRoute
+  '/app/_hiddenLayout/_authed/storages': typeof AppHiddenLayoutAuthedStoragesRoute
+  '/app/_hiddenLayout/_authed/view-product': typeof AppHiddenLayoutAuthedViewProductRoute
   '/app/_hiddenLayout/quick-view/product': typeof AppHiddenLayoutQuickViewProductRoute
 }
 export interface FileRouteTypes {
@@ -132,11 +139,12 @@ export interface FileRouteTypes {
     | '/'
     | '/login'
     | '/app/_hiddenLayout'
-    | '/app/_hiddenLayout/add-product'
+    | '/app/_hiddenLayout/_authed'
-    | '/app/_hiddenLayout/app-settings'
+    | '/app/_hiddenLayout/_authed/add-product'
-    | '/app/_hiddenLayout/inventory'
+    | '/app/_hiddenLayout/_authed/app-settings'
-    | '/app/_hiddenLayout/storages'
+    | '/app/_hiddenLayout/_authed/inventory'
-    | '/app/_hiddenLayout/view-product'
+    | '/app/_hiddenLayout/_authed/storages'
+    | '/app/_hiddenLayout/_authed/view-product'
     | '/app/_hiddenLayout/quick-view/product'
   fileRoutesById: FileRoutesById
 }
@@ -169,39 +177,11 @@ declare module '@tanstack/react-router' {
       preLoaderRoute: typeof AppHiddenLayoutRouteImport
       parentRoute: typeof rootRouteImport
     }
-    '/app/_hiddenLayout/view-product': {
+    '/app/_hiddenLayout/_authed': {
-      id: '/app/_hiddenLayout/view-product'
+      id: '/app/_hiddenLayout/_authed'
-      path: '/view-product'
+      path: ''
-      fullPath: '/app/view-product'
+      fullPath: '/app'
-      preLoaderRoute: typeof AppHiddenLayoutViewProductRouteImport
+      preLoaderRoute: typeof AppHiddenLayoutAuthedRouteImport
-      parentRoute: typeof AppHiddenLayoutRoute
-    }
-    '/app/_hiddenLayout/storages': {
-      id: '/app/_hiddenLayout/storages'
-      path: '/storages'
-      fullPath: '/app/storages'
-      preLoaderRoute: typeof AppHiddenLayoutStoragesRouteImport
-      parentRoute: typeof AppHiddenLayoutRoute
-    }
-    '/app/_hiddenLayout/inventory': {
-      id: '/app/_hiddenLayout/inventory'
-      path: '/inventory'
-      fullPath: '/app/inventory'
-      preLoaderRoute: typeof AppHiddenLayoutInventoryRouteImport
-      parentRoute: typeof AppHiddenLayoutRoute
-    }
-    '/app/_hiddenLayout/app-settings': {
-      id: '/app/_hiddenLayout/app-settings'
-      path: '/app-settings'
-      fullPath: '/app/app-settings'
-      preLoaderRoute: typeof AppHiddenLayoutAppSettingsRouteImport
-      parentRoute: typeof AppHiddenLayoutRoute
-    }
-    '/app/_hiddenLayout/add-product': {
-      id: '/app/_hiddenLayout/add-product'
-      path: '/add-product'
-      fullPath: '/app/add-product'
-      preLoaderRoute: typeof AppHiddenLayoutAddProductRouteImport
       parentRoute: typeof AppHiddenLayoutRoute
     }
     '/app/_hiddenLayout/quick-view/product': {
@@ -211,24 +191,72 @@ declare module '@tanstack/react-router' {
       preLoaderRoute: typeof AppHiddenLayoutQuickViewProductRouteImport
       parentRoute: typeof AppHiddenLayoutRoute
     }
+    '/app/_hiddenLayout/_authed/view-product': {
+      id: '/app/_hiddenLayout/_authed/view-product'
+      path: '/view-product'
+      fullPath: '/app/view-product'
+      preLoaderRoute: typeof AppHiddenLayoutAuthedViewProductRouteImport
+      parentRoute: typeof AppHiddenLayoutAuthedRoute
+    }
+    '/app/_hiddenLayout/_authed/storages': {
+      id: '/app/_hiddenLayout/_authed/storages'
+      path: '/storages'
+      fullPath: '/app/storages'
+      preLoaderRoute: typeof AppHiddenLayoutAuthedStoragesRouteImport
+      parentRoute: typeof AppHiddenLayoutAuthedRoute
+    }
+    '/app/_hiddenLayout/_authed/inventory': {
+      id: '/app/_hiddenLayout/_authed/inventory'
+      path: '/inventory'
+      fullPath: '/app/inventory'
+      preLoaderRoute: typeof AppHiddenLayoutAuthedInventoryRouteImport
+      parentRoute: typeof AppHiddenLayoutAuthedRoute
+    }
+    '/app/_hiddenLayout/_authed/app-settings': {
+      id: '/app/_hiddenLayout/_authed/app-settings'
+      path: '/app-settings'
+      fullPath: '/app/app-settings'
+      preLoaderRoute: typeof AppHiddenLayoutAuthedAppSettingsRouteImport
+      parentRoute: typeof AppHiddenLayoutAuthedRoute
+    }
+    '/app/_hiddenLayout/_authed/add-product': {
+      id: '/app/_hiddenLayout/_authed/add-product'
+      path: '/add-product'
+      fullPath: '/app/add-product'
+      preLoaderRoute: typeof AppHiddenLayoutAuthedAddProductRouteImport
+      parentRoute: typeof AppHiddenLayoutAuthedRoute
+    }
   }
 }
 
+interface AppHiddenLayoutAuthedRouteChildren {
+  AppHiddenLayoutAuthedAddProductRoute: typeof AppHiddenLayoutAuthedAddProductRoute
+  AppHiddenLayoutAuthedAppSettingsRoute: typeof AppHiddenLayoutAuthedAppSettingsRoute
+  AppHiddenLayoutAuthedInventoryRoute: typeof AppHiddenLayoutAuthedInventoryRoute
+  AppHiddenLayoutAuthedStoragesRoute: typeof AppHiddenLayoutAuthedStoragesRoute
+  AppHiddenLayoutAuthedViewProductRoute: typeof AppHiddenLayoutAuthedViewProductRoute
+}
+
+const AppHiddenLayoutAuthedRouteChildren: AppHiddenLayoutAuthedRouteChildren = {
+  AppHiddenLayoutAuthedAddProductRoute: AppHiddenLayoutAuthedAddProductRoute,
+  AppHiddenLayoutAuthedAppSettingsRoute: AppHiddenLayoutAuthedAppSettingsRoute,
+  AppHiddenLayoutAuthedInventoryRoute: AppHiddenLayoutAuthedInventoryRoute,
+  AppHiddenLayoutAuthedStoragesRoute: AppHiddenLayoutAuthedStoragesRoute,
+  AppHiddenLayoutAuthedViewProductRoute: AppHiddenLayoutAuthedViewProductRoute,
+}
+
+const AppHiddenLayoutAuthedRouteWithChildren =
+  AppHiddenLayoutAuthedRoute._addFileChildren(
+    AppHiddenLayoutAuthedRouteChildren,
+  )
+
 interface AppHiddenLayoutRouteChildren {
-  AppHiddenLayoutAddProductRoute: typeof AppHiddenLayoutAddProductRoute
+  AppHiddenLayoutAuthedRoute: typeof AppHiddenLayoutAuthedRouteWithChildren
-  AppHiddenLayoutAppSettingsRoute: typeof AppHiddenLayoutAppSettingsRoute
-  AppHiddenLayoutInventoryRoute: typeof AppHiddenLayoutInventoryRoute
-  AppHiddenLayoutStoragesRoute: typeof AppHiddenLayoutStoragesRoute
-  AppHiddenLayoutViewProductRoute: typeof AppHiddenLayoutViewProductRoute
   AppHiddenLayoutQuickViewProductRoute: typeof AppHiddenLayoutQuickViewProductRoute
 }
 
 const AppHiddenLayoutRouteChildren: AppHiddenLayoutRouteChildren = {
-  AppHiddenLayoutAddProductRoute: AppHiddenLayoutAddProductRoute,
+  AppHiddenLayoutAuthedRoute: AppHiddenLayoutAuthedRouteWithChildren,
-  AppHiddenLayoutAppSettingsRoute: AppHiddenLayoutAppSettingsRoute,
-  AppHiddenLayoutInventoryRoute: AppHiddenLayoutInventoryRoute,
-  AppHiddenLayoutStoragesRoute: AppHiddenLayoutStoragesRoute,
-  AppHiddenLayoutViewProductRoute: AppHiddenLayoutViewProductRoute,
   AppHiddenLayoutQuickViewProductRoute: AppHiddenLayoutQuickViewProductRoute,
 }
 

frontend/src/routes/app/_hiddenLayout.tsx

@@ -1,4 +1,4 @@
-import { Outlet, createFileRoute } from "@tanstack/react-router";
+import { createFileRoute, Outlet, useRouterState } from "@tanstack/react-router";
 import { Sidebar } from "../../components/Sidebar";
 
 export const Route = createFileRoute("/app/_hiddenLayout")({
@@ -6,11 +6,18 @@ export const Route = createFileRoute("/app/_hiddenLayout")({
 });
 
 function AppLayout() {
+  const pathname = useRouterState({ select: (state) => state.location.pathname });
+
   return (
-    <div className="flex min-h-screen w-full flex-col bg-[#f7f9fc] lg:flex-row">
+    <div
+      className="flex min-h-screen w-full flex-col lg:flex-row"
+      style={{ backgroundColor: "var(--joy-palette-background-body)" }}
+    >
       <Sidebar />
       <main className="flex-1 px-4 py-5 sm:px-6 lg:px-8 lg:py-6">
+        <div key={pathname} className="animate-page-in">
           <Outlet />
+        </div>
       </main>
     </div>
   );

frontend/src/routes/app/_hiddenLayout/_authed.tsx

@@ -0,0 +1,9 @@
+import { createFileRoute, Outlet } from "@tanstack/react-router";
+import { verifyLogin } from "../../../utils/api/auth";
+
+export const Route = createFileRoute("/app/_hiddenLayout/_authed")({
+  beforeLoad: async () => {
+    await verifyLogin();
+  },
+  component: () => <Outlet />,
+});

frontend/src/routes/app/_hiddenLayout/_authed/add-product.tsx

@@ -0,0 +1,10 @@
+import { createFileRoute } from "@tanstack/react-router";
+import { AddProduct } from "../../../../pages/AddProduct";
+
+export const Route = createFileRoute("/app/_hiddenLayout/_authed/add-product")({
+  component: RouteComponent,
+});
+
+function RouteComponent() {
+  return <AddProduct />;
+}

frontend/src/routes/app/_hiddenLayout/_authed/app-settings.tsx

@@ -0,0 +1,12 @@
+import { createFileRoute } from "@tanstack/react-router";
+import { Settings } from "../../../../pages/Settings";
+
+export const Route = createFileRoute("/app/_hiddenLayout/_authed/app-settings")(
+  {
+    component: RouteComponent,
+  },
+);
+
+function RouteComponent() {
+  return <Settings />;
+}

frontend/src/routes/app/_hiddenLayout/_authed/inventory.tsx

@@ -0,0 +1,10 @@
+import { createFileRoute } from "@tanstack/react-router";
+import { InventoryPage } from "../../../../pages/Inventory";
+
+export const Route = createFileRoute("/app/_hiddenLayout/_authed/inventory")({
+  component: RouteComponent,
+});
+
+function RouteComponent() {
+  return <InventoryPage />;
+}

frontend/src/routes/app/_hiddenLayout/_authed/storages.tsx

@@ -0,0 +1,10 @@
+import { createFileRoute } from "@tanstack/react-router";
+import { Storages } from "../../../../pages/Storages";
+
+export const Route = createFileRoute("/app/_hiddenLayout/_authed/storages")({
+  component: RouteComponent,
+});
+
+function RouteComponent() {
+  return <Storages />;
+}

frontend/src/routes/app/_hiddenLayout/_authed/view-product.tsx

@@ -0,0 +1,17 @@
+import { createFileRoute } from "@tanstack/react-router";
+import { z } from "zod";
+import { ViewProduct } from "../../../../pages/ViewProduct";
+
+export const Route = createFileRoute("/app/_hiddenLayout/_authed/view-product")(
+  {
+    validateSearch: z.object({
+      product: z.string(),
+    }),
+    component: RouteComponent,
+  },
+);
+
+function RouteComponent() {
+  const { product } = Route.useSearch();
+  return <ViewProduct uuid={product} />;
+}

frontend/src/routes/app/_hiddenLayout/add-product.tsx

@@ -1,18 +0,0 @@
-import { createFileRoute, redirect } from "@tanstack/react-router";
-import { isAuthenticated } from "../../../utils/api/auth";
-import { AddProduct } from "../../../pages/AddProduct";
-
-export const Route = createFileRoute("/app/_hiddenLayout/add-product")({
-  beforeLoad: async () => {
-    if (!(await isAuthenticated())) {
-      throw redirect({
-        to: "/login",
-      });
-    }
-  },
-  component: RouteComponent,
-});
-
-function RouteComponent() {
-  return <AddProduct />;
-}

frontend/src/routes/app/_hiddenLayout/app-settings.tsx

@@ -1,18 +0,0 @@
-import { createFileRoute, redirect } from "@tanstack/react-router";
-import { isAuthenticated } from "../../../utils/api/auth";
-import { Settings } from "../../../pages/Settings";
-
-export const Route = createFileRoute("/app/_hiddenLayout/app-settings")({
-  beforeLoad: async () => {
-    if (!(await isAuthenticated())) {
-      throw redirect({
-        to: "/login",
-      });
-    }
-  },
-  component: RouteComponent,
-});
-
-function RouteComponent() {
-  return <Settings />;
-}

frontend/src/routes/app/_hiddenLayout/inventory.tsx

@@ -1,18 +0,0 @@
-import { createFileRoute, redirect } from "@tanstack/react-router";
-import { isAuthenticated } from "../../../utils/api/auth";
-import { InventoryPage } from "../../../pages/Inventory";
-
-export const Route = createFileRoute("/app/_hiddenLayout/inventory")({
-  beforeLoad: async () => {
-    if (!(await isAuthenticated())) {
-      throw redirect({
-        to: "/login",
-      });
-    }
-  },
-  component: RouteComponent,
-});
-
-function RouteComponent() {
-  return <InventoryPage />;
-}

frontend/src/routes/app/_hiddenLayout/storages.tsx

@@ -1,18 +0,0 @@
-import { createFileRoute, redirect } from "@tanstack/react-router";
-import { isAuthenticated } from "../../../utils/api/auth";
-import { Storages } from "../../../pages/Storages";
-
-export const Route = createFileRoute("/app/_hiddenLayout/storages")({
-  beforeLoad: async () => {
-    if (!(await isAuthenticated())) {
-      throw redirect({
-        to: "/login",
-      });
-    }
-  },
-  component: RouteComponent,
-});
-
-function RouteComponent() {
-  return <Storages />;
-}

frontend/src/routes/app/_hiddenLayout/view-product.tsx

@@ -1,23 +0,0 @@
-import { createFileRoute, redirect } from "@tanstack/react-router";
-import { z } from "zod";
-import { isAuthenticated } from "../../../utils/api/auth";
-import { ViewProduct } from "../../../pages/ViewProduct";
-
-export const Route = createFileRoute("/app/_hiddenLayout/view-product")({
-  beforeLoad: async () => {
-    if (!(await isAuthenticated())) {
-      throw redirect({
-        to: "/login",
-      });
-    }
-  },
-  validateSearch: z.object({
-    product: z.string(),
-  }),
-  component: RouteComponent,
-});
-
-function RouteComponent() {
-  const { product } = Route.useSearch();
-  return <ViewProduct uuid={product} />;
-}

frontend/src/routes/index.tsx

@@ -6,6 +6,7 @@ export const Route = createFileRoute("/")({
     if (!(await isAuthenticated())) {
       throw redirect({
         to: "/login",
+        search: { loggedOut: true },
       });
     } else {
       throw redirect({

frontend/src/routes/login.tsx

@@ -1,7 +1,11 @@
 import { createFileRoute } from "@tanstack/react-router";
 import { LoginCard } from "../components/LoginCard";
+import { checkLogin } from "../utils/api/auth.ts";
 
 export const Route = createFileRoute("/login")({
+  beforeLoad: async () => {
+    await checkLogin();
+  },
   component: RouteComponent,
 });
 

frontend/src/theme.ts

@@ -0,0 +1,329 @@
+import { extendTheme } from "@mui/joy/styles";
+
+// Palette tokens sourced from the v0.9 design mockups (canvas/surface/ink/brand/etc.)
+
+export const theme = extendTheme({
+  cssVarPrefix: "joy",
+  colorSchemes: {
+    light: {
+      palette: {
+        primary: {
+          50: "#eef3fe",
+          100: "#dbe6fc",
+          200: "#b0c8f8",
+          300: "#7fa3f0",
+          400: "#4c7de0",
+          500: "#2159c9",
+          600: "#1c48a3",
+          700: "#163a82",
+          800: "#122e68",
+          900: "#0e2453",
+          solidBg: "#2159c9",
+          solidHoverBg: "#1c48a3",
+          solidActiveBg: "#163a82",
+          outlinedBorder: "#7fa3f0",
+          outlinedColor: "#163a82",
+          softBg: "#eef3fe", // Color in sidebar for selected view
+          softColor: "#163a82",
+        },
+        success: {
+          50: "#ecfdf5",
+          100: "#d1faee",
+          200: "#a6f4dc",
+          300: "#6ee7c9",
+          400: "#34d0ac",
+          500: "#0d9488",
+          600: "#0b7c73",
+          700: "#0a655e",
+          800: "#0b514c",
+          900: "#0a423f",
+          solidBg: "#0d9488",
+          solidHoverBg: "#0b7c73",
+          outlinedBorder: "#a6f4dc",
+          outlinedColor: "#0b7c73",
+          softBg: "#d1faee",
+          softColor: "#0a655e",
+        },
+        warning: {
+          50: "#fdf1e0",
+          100: "#fbe3c1",
+          200: "#f6c98a",
+          300: "#eeab54",
+          400: "#e2932c",
+          500: "#d98014",
+          600: "#b46810",
+          700: "#92530f",
+          800: "#734111",
+          900: "#5c350f",
+          solidBg: "#d98014",
+          solidHoverBg: "#b46810",
+          outlinedBorder: "#f6c98a",
+          outlinedColor: "#b46810",
+          softBg: "#fdf1e0",
+          softColor: "#734111",
+        },
+        danger: {
+          50: "#fbeae9",
+          100: "#f6d2cf",
+          200: "#eaa39c",
+          300: "#dc746a",
+          400: "#cd4f42",
+          500: "#c4342c",
+          600: "#a32a24",
+          700: "#84221f",
+          800: "#691c1b",
+          900: "#551818",
+          solidBg: "#c4342c",
+          solidHoverBg: "#a32a24",
+          outlinedBorder: "#eaa39c",
+          outlinedColor: "#a32a24",
+          softBg: "#fbeae9",
+          softColor: "#84221f",
+        },
+        neutral: {
+          50: "#f6f7f9",
+          100: "#f2f4f6",
+          200: "#e4e7ec",
+          300: "#dfe3e8",
+          400: "#7b8494",
+          500: "#667283",
+          600: "#4a5364",
+          700: "#39414f",
+          800: "#232833",
+          900: "#10151f",
+          plainColor: "#4a5364",
+          outlinedColor: "#4a5364",
+          outlinedBorder: "#e4e7ec",
+          outlinedHoverBg: "#fbfcfd",
+          softColor: "#4a5364",
+          softBg: "#f2f4f6",
+        },
+        background: {
+          body: "#f6f7f9",
+          surface: "#ffffff",
+          level1: "#fbfcfd",
+          level2: "#f2f4f6",
+          level3: "#e4e7ec",
+        },
+        text: {
+          primary: "#10151f",
+          secondary: "#4a5364",
+          tertiary: "#667283",
+        },
+        divider: "#e4e7ec",
+      },
+    },
+    dark: {
+      palette: {
+        primary: {
+          50: "#0e2453",
+          100: "#122e68",
+          200: "#163a82",
+          300: "#1c48a3",
+          400: "#2159c9",
+          500: "#5b8def",
+          600: "#82a8f2",
+          700: "#a9c3f6",
+          800: "#cddcfa",
+          900: "#eef3fe",
+          solidBg: "#5b8def",
+          solidHoverBg: "#82a8f2",
+          solidActiveBg: "#1c48a3",
+          outlinedBorder: "#1c48a3",
+          outlinedColor: "#a9c3f6",
+          softBg: "#16233d", // Color in sidebar for selected view
+          softColor: "#a9c3f6",
+        },
+        success: {
+          50: "#0a423f",
+          100: "#0b514c",
+          200: "#0a655e",
+          300: "#0b7c73",
+          400: "#0d9488",
+          500: "#2dc8b1",
+          600: "#6ee7c9",
+          700: "#a6f4dc",
+          800: "#d1faee",
+          900: "#ecfdf5",
+          solidBg: "#0d9488",
+          solidHoverBg: "#2dc8b1",
+          outlinedBorder: "#0a655e",
+          outlinedColor: "#6ee7c9",
+          softBg: "rgba(13, 148, 136, 0.18)",
+          softColor: "#6ee7c9",
+        },
+        warning: {
+          50: "#5c350f",
+          100: "#734111",
+          200: "#92530f",
+          300: "#b46810",
+          400: "#d98014",
+          500: "#e3a054",
+          600: "#edbb82",
+          700: "#f4d3ac",
+          800: "#f9e6d3",
+          900: "#fdf1e0",
+          solidBg: "#e3a054",
+          solidHoverBg: "#edbb82",
+          outlinedBorder: "#92530f",
+          outlinedColor: "#edbb82",
+          softBg: "rgba(227, 160, 84, 0.16)",
+          softColor: "#f4d3ac",
+        },
+        danger: {
+          50: "#551818",
+          100: "#691c1b",
+          200: "#84221f",
+          300: "#a32a24",
+          400: "#c4342c",
+          500: "#f07168",
+          600: "#f4948d",
+          700: "#f8b7b2",
+          800: "#fbd6d3",
+          900: "#fdeceb",
+          solidBg: "#f07168",
+          solidHoverBg: "#f4948d",
+          outlinedBorder: "#84221f",
+          outlinedColor: "#f4948d",
+          softBg: "rgba(240, 113, 104, 0.16)",
+          softColor: "#f8b7b2",
+        },
+        neutral: {
+          50: "#0e1116",
+          100: "#161b22",
+          200: "#1b212a",
+          300: "#20262f",
+          400: "#272e39",
+          500: "#8590a0",
+          600: "#aab4c2",
+          700: "#c7cfd9",
+          800: "#e8ecf2",
+          900: "#f6f8fa",
+          plainColor: "#aab4c2",
+          outlinedColor: "#aab4c2",
+          outlinedBorder: "#272e39",
+          outlinedHoverBg: "#1b212a",
+          softColor: "#aab4c2",
+          softBg: "#20262f",
+        },
+        background: {
+          body: "#0e1116",
+          surface: "#161b22",
+          level1: "#1b212a",
+          level2: "#20262f",
+          level3: "#272e39",
+        },
+        text: {
+          primary: "#e8ecf2",
+          secondary: "#aab4c2",
+          tertiary: "#8590a0",
+        },
+        divider: "#272e39",
+      },
+    },
+  },
+  fontFamily: {
+    body: "'IBM Plex Sans', 'Segoe UI', system-ui, sans-serif",
+    display: "'IBM Plex Sans', 'Segoe UI', system-ui, sans-serif",
+    code: "'IBM Plex Mono', ui-monospace, monospace",
+  },
+  radius: {
+    xs: "6px",
+    sm: "10px",
+    md: "14px",
+    lg: "20px",
+    xl: "28px",
+  },
+  typography: {
+    h1: {
+      fontSize: "30px",
+      fontWeight: 700,
+      letterSpacing: "-0.03em",
+      lineHeight: 1.2,
+    },
+    h2: {
+      fontSize: "22px",
+      fontWeight: 700,
+      letterSpacing: "-0.02em",
+      lineHeight: 1.25,
+    },
+    "title-lg": {
+      fontSize: "15px",
+      fontWeight: 600,
+      lineHeight: 1.4,
+    },
+    "title-md": {
+      fontSize: "13px",
+      fontWeight: 600,
+      lineHeight: 1.4,
+    },
+    "body-lg": {
+      fontSize: "13.5px",
+      fontWeight: 400,
+      lineHeight: 1.5,
+    },
+    "body-md": {
+      fontSize: "13.5px",
+      fontWeight: 400,
+      lineHeight: 1.5,
+    },
+    "body-sm": {
+      fontSize: "11.5px",
+      fontWeight: 600,
+      lineHeight: 1.4,
+    },
+  },
+  components: {
+    JoyInput: {
+      styleOverrides: {
+        input: ({ theme }) => ({
+          color: theme.vars.palette.text.primary,
+          "&::placeholder": {
+            color: theme.vars.palette.text.tertiary,
+            opacity: 1,
+          },
+        }),
+      },
+    },
+    JoySelect: {
+      styleOverrides: {
+        button: ({ theme }) => ({
+          color: theme.vars.palette.text.primary,
+        }),
+        listbox: ({ theme }) => ({
+          color: theme.vars.palette.text.primary,
+          backgroundColor: theme.vars.palette.background.surface,
+        }),
+      },
+    },
+    JoySheet: {
+      styleOverrides: {
+        root: ({ theme }) => ({
+          backgroundColor: theme.vars.palette.background.surface,
+          borderColor: theme.vars.palette.divider,
+        }),
+      },
+    },
+    JoyOption: {
+      styleOverrides: {
+        root: ({ theme }) => ({
+          color: theme.vars.palette.text.primary,
+          backgroundColor: theme.vars.palette.background.surface,
+          "&:hover": {
+            backgroundColor: theme.vars.palette.background.level1,
+          },
+          '&[aria-selected="true"]': {
+            backgroundColor: theme.vars.palette.background.level2,
+          },
+        }),
+      },
+    },
+    JoyButton: {
+      styleOverrides: {
+        root: {
+          transition: "all 0.15s ease",
+        },
+      },
+    },
+  },
+});

frontend/src/utils/api/auth.ts

@@ -4,8 +4,9 @@ import type { TFunction } from "i18next";
 import { fetchSettings } from "./settings";
 import type { ChangePasswordIntf } from "../../misc/interfaces";
 import { createApiError } from "./apiError";
+import { redirect } from "@tanstack/react-router";
 
-export async function isAuthenticated() {
+export const isAuthenticated = async () => {
   if (Cookies.get("token")) {
     const result = await fetch(`${API_BASE}/users/verify-token`, {
       method: "POST",
@@ -23,13 +24,13 @@ export async function isAuthenticated() {
 
   Cookies.remove("token");
   return false;
-}
+};
 
-export async function signInUser(
+export const signInUser = async (
   username: string,
   password: string,
   t: TFunction,
-) {
+) => {
   const result = await fetch(`${API_BASE}/users/login`, {
     method: "POST",
     headers: {
@@ -54,12 +55,7 @@ export async function signInUser(
 
   Cookies.remove("token");
   throw createApiError(response.code, t(response.code || "unknown-error"));
-}
+};
-
-export function signOutUser() {
-  Cookies.remove("token");
-  return { ok: true as const };
-}
 
 export const mutatePassword = async (payload: ChangePasswordIntf) => {
   const result = await fetch(`${API_BASE}/users/change-password`, {
@@ -77,9 +73,26 @@ export const mutatePassword = async (payload: ChangePasswordIntf) => {
 
   const response = await result.json();
 
-  if (response.code === "su005") {
+  if (response.code === "SU005") {
     return { code: response.code };
   }
 
   throw createApiError(response.code, "Change password failed");
 };
+
+export const verifyLogin = async () => {
+  if (!(await isAuthenticated())) {
+    throw redirect({
+      to: "/login",
+      search: { loggedOut: true },
+    });
+  }
+};
+
+export const checkLogin = async () => {
+  if (await isAuthenticated()) {
+    throw redirect({
+      to: "/app/inventory",
+    });
+  }
+};

frontend/src/utils/api/products.ts

@@ -1,7 +1,7 @@
-import { API_BASE } from "../../config/api.config";
+import {API_BASE} from "../../config/api.config";
 import Cookies from "js-cookie";
-import type { ProductFormValues } from "../../misc/interfaces";
+import type {ProductFormValues} from "../../misc/interfaces";
-import { createApiError } from "./apiError";
+import {createApiError} from "./apiError";
 
 export const getProducts = async () => {
     const result = await fetch(`${API_BASE}/products/all-products`, {
@@ -13,7 +13,7 @@ export const getProducts = async () => {
     });
     const response = await result.json();
 
-  if (response.code === "sp002") {
+    if (response.code === "SP002") {
         return response.data;
     }
 
@@ -31,7 +31,7 @@ export const getProductDetails = async (uuid: string) => {
 
     const response = await result.json();
 
-  if (response.code === "sp003") {
+    if (response.code === "SP003") {
         return response.data;
     }
 
@@ -63,7 +63,7 @@ export const mutateProduct = async (
 
     const response = await result.json();
 
-  if (response.code === "sp005") {
+    if (response.code === "SP005") {
         return response.data;
     }
 
@@ -83,8 +83,8 @@ export const deleteSelectedProducts = async (uuids: string[]) => {
 
     const response = await result.json();
 
-  if (response.code === "sp006") {
+    if (response.code === "SP006") {
-    return { success: true };
+        return {success: true};
     }
 
     throw createApiError(response.code, "Delete products failed");
@@ -113,7 +113,7 @@ export const createProduct = async (values: ProductFormValues) => {
 
     const response = await result.json();
 
-  if (response.code === "sp001") {
+    if (response.code === "SP001") {
         return response.data;
     }
 

frontend/src/utils/api/settings.ts

@@ -1,7 +1,7 @@
-import { API_BASE } from "../../config/api.config";
+import {API_BASE} from "../../config/api.config";
 import Cookies from "js-cookie";
-import type { SettingsIntf } from "../../misc/interfaces";
+import type {SettingsIntf} from "../../misc/interfaces";
-import { createApiError } from "./apiError";
+import {createApiError} from "./apiError";
 
 export const fetchSettings = async () => {
     const result = await fetch(`${API_BASE}/users/settings`, {
@@ -15,8 +15,8 @@ export const fetchSettings = async () => {
 
     const response = await result.json();
 
-  if (response.code === "su004") {
+    if (response.code === "SU004") {
-    return { success: true, data: response.data, code: response.code };
+        return {success: true, data: response.data, code: response.code};
     }
 
     throw createApiError(response.code, "Fetch settings failed");
@@ -35,8 +35,8 @@ export const mutateSettings = async (payload: SettingsIntf) => {
 
     const response = await result.json();
 
-  if (response.code === "su003") {
+    if (response.code === "SU003") {
-    return { success: true, code: response.code };
+        return {success: true, code: response.code};
     }
 
     throw createApiError(response.code, "Update settings failed");

frontend/src/utils/api/storages.ts

@@ -1,7 +1,7 @@
-import { API_BASE } from "../../config/api.config";
+import {API_BASE} from "../../config/api.config";
 import Cookies from "js-cookie";
-import type { NewStorage, Storage } from "../../misc/interfaces";
+import type {NewStorage, Storage} from "../../misc/interfaces";
-import { createApiError } from "./apiError";
+import {createApiError} from "./apiError";
 
 export const getStorages = async () => {
     const result = await fetch(`${API_BASE}/storage/all-storages`, {
@@ -14,7 +14,7 @@ export const getStorages = async () => {
 
     const response = await result.json();
 
-  if (response.code === "ss001") {
+    if (response.code === "SS001") {
         return response.data;
     }
 
@@ -34,7 +34,7 @@ export const mutateNewStorage = async (values: NewStorage) => {
 
     const response = await result.json();
 
-  if (response.code === "ss002") {
+    if (response.code === "SS002") {
         return response.data;
     }
 
@@ -79,8 +79,8 @@ export const deleteStorage = async (uuid: string) => {
 
     const response = await result.json();
 
-  if (response.code === "ss004") {
+    if (response.code === "SS004") {
-    return { success: true, code: response.code };
+        return {success: true, code: response.code};
     }
 
     throw createApiError(response.code, "Delete storage failed");

frontend/src/utils/i18n/locales/de/de.json

@@ -6,7 +6,6 @@
   "details": "Details",
   "username": "Benutzername",
   "password": "Passwort",
-    "eu001": "Falscher Benutzername oder Passwort!",
   "login": "Login",
   "product-name": "Produktname",
   "price": "Preis",
@@ -57,5 +56,80 @@
   "change": "Ändern",
   "error": "Fehler",
   "success": "Erfolg",
-    "submit": "Absenden"
+  "submit": "Absenden",
+  "logout-success-text": "Logout erfolgreich!",
+  "not-found-header": "404 - Nicht gefunden",
+  "not-found-body": "Die Seite nach der du gesucht hast, gibt es nicht.",
+  "SU005": "Das Passwort wurde erfolgreich geändert!",
+  "SE001": "Die Einstellungen wurden erfolgreich geändert!",
+  "EG001": "Ein unerwarteter Fehler ist aufgetreten. Bitte versuchen Sie es später erneut.",
+  "EU001": "Falscher Benutzername oder Passwort!",
+  "EU002": "Ihr Konto wurde deaktiviert. Bitte wenden Sie sich an einen Administrator.",
+  "EU003": "Bitte geben Sie Benutzername und Passwort ein.",
+  "EU004": "Einige erforderliche Angaben fehlen. Bitte überprüfen Sie Ihre Eingabe.",
+  "EU005": "Anmeldung aufgrund eines technischen Problems fehlgeschlagen. Bitte versuchen Sie es erneut.",
+  "EU006": "Anmeldung fehlgeschlagen. Bitte versuchen Sie es erneut.",
+  "EU007": "Passwort konnte nicht geändert werden. Bitte versuchen Sie es erneut.",
+  "EU008": "Ihre Einstellungen konnten nicht gespeichert werden. Bitte versuchen Sie es erneut.",
+  "EU009": "Ihre Einstellungen konnten nicht geladen werden. Bitte versuchen Sie es erneut.",
+  "EU010": "Sie müssen Ihr neues Passwort zweimal korrekt eingeben.",
+  "ES001": "Bitte füllen Sie alle erforderlichen Felder für den Lagerort aus.",
+  "ES002": "Einige erforderliche Lagerinformationen fehlen. Bitte überprüfen Sie Ihre Eingabe.",
+  "ES003": "Der Lagerort konnte nicht aktualisiert werden. Bitte versuchen Sie es erneut.",
+  "ES004": "Der Lagerort konnte nicht gelöscht werden. Bitte versuchen Sie es erneut.",
+  "ES005": "Keine Lagerorte gefunden.",
+  "ES006": "Der Lagerort konnte nicht erstellt werden. Bitte versuchen Sie es erneut.",
+  "EP001": "Das Produkt konnte nicht erstellt werden. Bitte versuchen Sie es erneut.",
+  "EP002": "Keine Produkte gefunden.",
+  "EP003": "Produkt nicht gefunden.",
+  "EP004": "Die Produktmenge konnte nicht aktualisiert werden. Bitte versuchen Sie es erneut.",
+  "EP005": "Das Produkt konnte nicht aktualisiert werden. Bitte versuchen Sie es erneut.",
+  "EP006": "Das Produkt konnte nicht gelöscht werden. Bitte versuchen Sie es erneut.",
+  "EP007": "Bitte geben Sie mindestens einen Produktnamen ein.",
+  "EP008": "Einige erforderliche Produktinformationen fehlen. Bitte überprüfen Sie Ihre Eingabe.",
+  "stat-expired": "Abgelaufen",
+  "stat-expiring-soon": "Läuft in 90 Tagen ab",
+  "stat-low-stock": "Niedriger Bestand",
+  "stat-units-stored": "Gelagerte Einheiten",
+  "days-since-expired": "Vor {{count}} Tagen abgelaufen",
+  "days-until-expiry": "in {{count}} Tagen",
+  "expires-in-days-badge": "Läuft in {{count}} Tagen ab",
+  "general": "Allgemein",
+  "appearance-language": "Darstellung & Sprache",
+  "theme": "Design",
+  "theme-light": "Hell",
+  "theme-dark": "Dunkel",
+  "theme-system": "System",
+  "language": "Sprache",
+  "account": "Konto",
+  "sign-out": "Abmelden",
+  "sign-out-sub": "Beendet diese Sitzung auf diesem Gerät.",
+  "login-tagline-1": "Alles, was du verstaut hast, im Januar noch auffindbar.",
+  "login-tagline-2": "Gefrierfach, Vorrat, Keller. Eine Liste, ein Ablaufdatum pro Glas.",
+  "storages-sub": "{{count}} Orte, {{items}} Artikel gelagert.",
+  "new-storage": "Neuer Lagerort",
+  "product": "Produkt",
+  "product-name-placeholder": "z. B. Tomatensauce",
+  "description-placeholder": "Kurze Notiz zu dieser Charge",
+  "choose-storage": "Lagerort wählen",
+  "amount-price-optional-hint": "Menge und Preis sind optional. Der Lagerort bestimmt, wo der Artikel im Inventar erscheint.",
+  "all-fields-editable-later": "Alle Felder können später bearbeitet werden",
+  "save-product": "Produkt speichern",
+  "jar-label": "Glas-Etikett",
+  "jar-label-hint": "Ausdrucken und auf den Deckel kleben. Scannen öffnet die Schnellansicht.",
+  "scanned-badge": "Gescannt",
+  "opened-from-jar-label": "Über das Glas-Etikett geöffnet",
+  "amount-in-storage": "Menge im Lager",
+  "set-to-zero-hint": "Auf 0 setzen, um den Eintrag zu behalten, aber das Fach zu leeren.",
+  "open-full-details": "Vollständige Produktdetails öffnen",
+  "inventory-summary": "{{count}} Artikel in {{storages}} Lagerorten",
+  "search-products": "Produkte durchsuchen",
+  "filter-all": "Alle",
+  "filter-expired": "Abgelaufen",
+  "filter-soon": "Bald",
+  "filter-low": "Niedrig",
+  "products": "Produkte",
+  "units": "Einheiten",
+  "cancel": "Abbrechen",
+  "delete-confirmation-text": "Bist du dir sicher das du diesen Storage löschen willst: "
 }

frontend/src/utils/i18n/locales/en/en.json

@@ -6,7 +6,6 @@
   "details": "Details",
   "username": "Username",
   "password": "Password",
-    "eu001": "Wrong username or password!",
   "login": "Login",
   "product-name": "Product name",
   "price": "Price",
@@ -57,5 +56,80 @@
   "change": "Change",
   "error": "Error",
   "success": "Success",
-    "submit": "Submit"
+  "submit": "Submit",
+  "logout-success-text": "Logout successful!",
+  "not-found-header": "404 - Not found",
+  "not-found-body": "The page you were looking for, does not exist.",
+  "SU005": "Your password is updated successfully!",
+  "SE001": "The settings are updated successfully!",
+  "EG001": "An unexpected error occurred. Please try again later.",
+  "EU001": "Wrong username or password!",
+  "EU002": "Your account has been deactivated. Please contact an administrator.",
+  "EU003": "Please enter both username and password.",
+  "EU004": "Some required information is missing. Please check your input.",
+  "EU005": "Login failed due to a technical issue. Please try again.",
+  "EU006": "Login failed. Please try again.",
+  "EU007": "Failed to change your password. Please try again.",
+  "EU008": "Your settings could not be saved. Please try again.",
+  "EU009": "Your settings could not be loaded. Please try again.",
+  "EU010": "You must enter your new password twice correctly.",
+  "ES001": "Please fill in all required fields for the storage location.",
+  "ES002": "Some required storage information is missing. Please check your input.",
+  "ES003": "The storage location could not be updated. Please try again.",
+  "ES004": "The storage location could not be deleted. Please try again.",
+  "ES005": "No storage locations found.",
+  "ES006": "The storage location could not be created. Please try again.",
+  "EP001": "The product could not be created. Please try again.",
+  "EP002": "No products found.",
+  "EP003": "Product not found.",
+  "EP004": "The product amount could not be updated. Please try again.",
+  "EP005": "The product could not be updated. Please try again.",
+  "EP006": "The product could not be deleted. Please try again.",
+  "EP007": "Please enter at least a product name.",
+  "EP008": "Some required product information is missing. Please check your input.",
+  "stat-expired": "Expired",
+  "stat-expiring-soon": "Expiring in 90 days",
+  "stat-low-stock": "Low stock",
+  "stat-units-stored": "Units stored",
+  "days-since-expired": "Expired {{count}} days ago",
+  "days-until-expiry": "in {{count}} days",
+  "expires-in-days-badge": "Expires in {{count}} days",
+  "general": "General",
+  "appearance-language": "Appearance & language",
+  "theme": "Theme",
+  "theme-light": "Light",
+  "theme-dark": "Dark",
+  "theme-system": "System",
+  "language": "Language",
+  "account": "Account",
+  "sign-out": "Sign out",
+  "sign-out-sub": "Ends this session on this device.",
+  "login-tagline-1": "Everything you put away, still findable in January.",
+  "login-tagline-2": "Freezer, pantry, cellar. One list, one expiry date per jar.",
+  "storages-sub": "{{count}} places, {{items}} items stored.",
+  "new-storage": "New storage",
+  "product": "Product",
+  "product-name-placeholder": "e.g. Tomato Sauce",
+  "description-placeholder": "Short note about this batch",
+  "choose-storage": "Choose a storage",
+  "amount-price-optional-hint": "Amount and price are optional. Storage place decides where the item shows up in the inventory list.",
+  "all-fields-editable-later": "All fields can be edited later",
+  "save-product": "Save product",
+  "jar-label": "Jar label",
+  "jar-label-hint": "Print and stick it on the lid. Scanning opens fast details.",
+  "scanned-badge": "Scanned",
+  "opened-from-jar-label": "Opened from the jar label",
+  "amount-in-storage": "Amount in storage",
+  "set-to-zero-hint": "Set to 0 to keep the record but empty the shelf.",
+  "open-full-details": "Open full product details",
+  "inventory-summary": "{{count}} items across {{storages}} storages",
+  "search-products": "Search products",
+  "filter-all": "All",
+  "filter-expired": "Expired",
+  "filter-soon": "Soon",
+  "filter-low": "Low",
+  "products": "products",
+  "units": "units",
+  "cancel": "Cancel",
+  "delete-confirmation-text": "Are you sure you want to delete this storage: "
 }

frontend/src/utils/productStatus.ts

@@ -0,0 +1,53 @@
+const EXPIRING_SOON_DAYS = 90;
+const LOW_STOCK_MAX = 2;
+
+const daysUntil = (value?: string | null) => {
+  if (!value) {
+    return null;
+  }
+  const date = new Date(value);
+  if (Number.isNaN(date.getTime())) {
+    return null;
+  }
+  const today = new Date();
+  today.setHours(0, 0, 0, 0);
+  date.setHours(0, 0, 0, 0);
+  return Math.round((date.getTime() - today.getTime()) / (1000 * 60 * 60 * 24));
+};
+
+export const isExpired = (expiryDate?: string | null) => {
+  const days = daysUntil(expiryDate);
+  return days !== null && days < 0;
+};
+
+export const isExpiringSoon = (expiryDate?: string | null) => {
+  const days = daysUntil(expiryDate);
+  return days !== null && days >= 0 && days <= EXPIRING_SOON_DAYS;
+};
+
+export const isLowStock = (amount: number) => amount > 0 && amount <= LOW_STOCK_MAX;
+
+export type ProductStatus = "expired" | "expiring-soon" | "ok";
+
+export const getProductStatus = (expiryDate?: string | null): ProductStatus => {
+  if (isExpired(expiryDate)) {
+    return "expired";
+  }
+  if (isExpiringSoon(expiryDate)) {
+    return "expiring-soon";
+  }
+  return "ok";
+};
+
+// Days remaining until expiry (negative = days since it expired), plus the
+// derived status. Components format this into copy via i18next (t()) so the
+// wording stays translatable.
+export const getExpiryDays = (
+  expiryDate?: string | null,
+): { days: number; status: ProductStatus } | null => {
+  const days = daysUntil(expiryDate);
+  if (days === null) {
+    return null;
+  }
+  return { days, status: getProductStatus(expiryDate) };
+};

frontend/tsconfig.app.json

@@ -19,7 +19,10 @@
     "noUnusedLocals": true,
     "noUnusedParameters": true,
     "erasableSyntaxOnly": true,
-    "noFallthroughCasesInSwitch": true
+    "noFallthroughCasesInSwitch": true,
+    "sourceMap": true,
+    "declaration": true,
+    "declarationMap": true
   },
   "include": ["src"]
 }

frontend/tsconfig.json

@@ -1,7 +1,26 @@
 {
-  "files": [],
+  "compilerOptions": {
-  "references": [
+    "target": "ES2022",
-    { "path": "./tsconfig.app.json" },
+    "useDefineForClassFields": true,
-    { "path": "./tsconfig.node.json" }
+    "lib": [
+      "ES2022",
+      "DOM",
+      "DOM.Iterable"
+    ],
+    "module": "ESNext",
+    "moduleResolution": "Bundler",
+    "jsx": "react-jsx",
+    "allowImportingTsExtensions": true,
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "noEmit": true,
+    "strict": true,
+    "skipLibCheck": true,
+    "types": [
+      "vite/client"
+    ]
+  },
+  "include": [
+    "src"
   ]
 }

frontend/vite.config.ts

@@ -2,14 +2,14 @@ import { defineConfig } from "vite";
 import react, { reactCompilerPreset } from "@vitejs/plugin-react";
 import babel from "@rolldown/plugin-babel";
 import tailwindcss from "@tailwindcss/vite";
-import { TanStackRouterVite } from "@tanstack/router-vite-plugin";
+import { tanstackRouter } from "@tanstack/router-vite-plugin";
 
 // https://vite.dev/config/
 export default defineConfig({
   plugins: [
     react(),
     tailwindcss(),
-    TanStackRouterVite(),
+    tanstackRouter(),
     babel({ presets: [reactCompilerPreset()] }),
   ],
 });

package.json

@@ -3,17 +3,21 @@
   "private": true,
   "workspaces": [
     "backend",
-    "frontend"
+    "frontend",
+    "shared"
   ],
   "version": "0.1.0-dev",
-  "description": "![React](https://img.shields.io/badge/React-61DAFB?logo=react&logoColor=000&style=flat) ![TypeScript](https://img.shields.io/badge/TypeScript-3178C6?logo=typescript&logoColor=fff&style=flat) ![Vite](https://img.shields.io/badge/Vite-646CFF?logo=vite&logoColor=fff&style=flat) ![Tailwind%20CSS](https://img.shields.io/badge/Tailwind%20CSS-38B2AC?logo=tailwindcss&logoColor=fff&style=flat) ![MUI](https://img.shields.io/badge/MUI-007FFF?logo=mui&logoColor=fff&style=flat) ![TanStack%20Query](https://img.shields.io/badge/TanStack%20Query-FF4154?logo=reactquery&logoColor=fff&style=flat) ![React%20Router](https://img.shields.io/badge/React%20Router-CA4245?logo=reactrouter&logoColor=fff&style=flat) [![TanStack%20Form](https://img.shields.io/badge/TanStack%20Form-EC5990?logo=reacthookform&logoColor=fff)](#) ![Node.js](https://img.shields.io/badge/Node.js-339933?logo=nodedotjs&logoColor=fff&style=flat) ![Express](https://img.shields.io/badge/Express-000000?logo=express&logoColor=fff&style=flat) ![MySQL](https://img.shields.io/badge/MySQL-4479A1?logo=mysql&logoColor=fff&style=flat) ![Docker](https://img.shields.io/badge/Docker-2496ED?logo=docker&logoColor=fff&style=flat) ![Nginx](https://img.shields.io/badge/Nginx-009639?logo=nginx&logoColor=fff&style=flat)",
+  "description": "",
-  "main": "index.js",
   "scripts": {
+    "build:shared": "npm run build --workspace=@stockhome/shared",
+    "build:backend": "npm run build --workspace=backend",
+    "build:frontend": "npm run build --workspace=frontend",
     "dev:frontend": "npm run dev --workspace=frontend",
-    "dev:backend": "npm run dev --workspace=backend",
+    "dev:backend": "npm run build:shared && npm run dev --workspace=backend",
     "dev:docker": "docker compose -f docker-compose.dev.yml up -d --wait",
     "dev": "npm run dev:docker && concurrently --kill-others \"npm:dev:frontend\" \"npm:dev:backend\"",
-    "dev:stop": "docker compose -f docker-compose.dev.yml down"
+    "dev:stop": "docker compose -f docker-compose.dev.yml down",
+    "buildProd": "npm run build:shared && npm run build:backend && npm run build:frontend"
   },
   "repository": {
     "type": "git",
@@ -22,8 +26,16 @@
   "keywords": [],
   "author": "",
   "license": "ISC",
-  "type": "commonjs",
+  "type": "module",
+  "overrides": {
+    "@babel/core": "^7.26.0"
+  },
   "devDependencies": {
-    "concurrently": "^10.0.3"
+    "@eslint/js": "^10.0.1",
+    "@types/cors": "^2.8.19",
+    "@types/express": "^5.0.6",
+    "concurrently": "^10.0.3",
+    "globals": "^17.7.0",
+    "prettier": "^3.9.6"
   }
 }

shared/package-lock.json

@@ -0,0 +1,948 @@
+{
+  "name": "shared",
+  "version": "0.0.0-dev",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "shared",
+      "version": "0.0.0-dev",
+      "devDependencies": {
+        "barrelsby": "^2.8.1",
+        "vite-plugin-dts": "^5.0.3"
+      }
+    },
+    "node_modules/@jridgewell/gen-mapping": {
+      "version": "0.3.13",
+      "resolved": "https://registry.npmjs.org/@jridgewell/gen-mapping/-/gen-mapping-0.3.13.tgz",
+      "integrity": "sha512-2kkt/7niJ6MgEPxF0bYdQ6etZaA+fQvDcLKckhy1yIQOzaoKjBBjSj63/aLVjYE3qhRt5dvM+uUyfCg6UKCBbA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@jridgewell/sourcemap-codec": "^1.5.0",
+        "@jridgewell/trace-mapping": "^0.3.24"
+      }
+    },
+    "node_modules/@jridgewell/remapping": {
+      "version": "2.3.5",
+      "resolved": "https://registry.npmjs.org/@jridgewell/remapping/-/remapping-2.3.5.tgz",
+      "integrity": "sha512-LI9u/+laYG4Ds1TDKSJW2YPrIlcVYOwi2fUC6xB43lueCjgxV4lffOCZCtYFiH6TNOX+tQKXx97T4IKHbhyHEQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@jridgewell/gen-mapping": "^0.3.5",
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+      "integrity": "sha512-tVpsJW7DdjecAiFpbIB1e3qxIQsE6NoPc5/eTdrbbIC4h0LVsWhnoa3g+m2HclBIujHzsxZ4VJVA+GUuc2/LBw==",
+      "dev": true,
+      "license": "ISC",
+      "engines": {
+        "node": ">=12"
+      }
+    }
+  }
+}

shared/package.json

@@ -0,0 +1,25 @@
+{
+  "name": "@stockhome/shared",
+  "private": true,
+  "version": "1.0.0",
+  "type": "module",
+  "scripts": {
+    "prebuild": "barrelsby --directory src --delete --single",
+    "build:esm": "tsc -p tsconfig.esm.json && node scripts/postbuild-esm.cjs",
+    "build:cjs": "tsc -p tsconfig.cjs.json && find dist/cjs -name \"*.js\" -type f -exec sh -c 'mv \"$1\" \"${1%.js}.cjs\"' _ {} \\; && node scripts/postbuild.cjs",
+    "build": "rm -rf dist && npm run prebuild && npm run build:esm && npm run build:cjs",
+    "lint": "eslint ."
+  },
+  "exports": {
+    ".": {
+      "types": "./dist/types/index.d.ts",
+      "import": "./dist/esm/index.js",
+      "require": "./dist/cjs/index.cjs"
+    }
+  },
+  "types": "./dist/types/index.d.ts",
+  "devDependencies": {
+    "barrelsby": "^2.8.1",
+    "typescript": "~6.0.2"
+  }
+}

shared/scripts/postbuild-esm.cjs

@@ -0,0 +1,30 @@
+const fs = require('fs');
+const path = require('path');
+
+// Recursively process all .js files in esm directory
+function processDirectory(dir) {
+  const files = fs.readdirSync(dir);
+  
+  files.forEach(file => {
+    const filePath = path.join(dir, file);
+    const stat = fs.statSync(filePath);
+    
+    if (stat.isDirectory()) {
+      processDirectory(filePath);
+    } else if (file.endsWith('.js')) {
+      // Read the file
+      let content = fs.readFileSync(filePath, 'utf8');
+      
+      // Replace import/export statements to add .js extension
+      // Replace from "./path" with from "./path.js" (for relative imports only)
+      content = content.replace(/from ["'](\.[^"']*?)(?<!\.js)["']/g, 'from "$1.js"');
+      
+      // Write back
+      fs.writeFileSync(filePath, content, 'utf8');
+      console.log(`✓ Updated ${filePath}`);
+    }
+  });
+}
+
+processDirectory('./dist/esm');
+console.log('✓ ESM post-build processing complete');

shared/scripts/postbuild.cjs

@@ -0,0 +1,29 @@
+const fs = require('fs');
+const path = require('path');
+
+// Recursively process all .cjs files
+function processDirectory(dir) {
+  const files = fs.readdirSync(dir);
+  
+  files.forEach(file => {
+    const filePath = path.join(dir, file);
+    const stat = fs.statSync(filePath);
+    
+    if (stat.isDirectory()) {
+      processDirectory(filePath);
+    } else if (file.endsWith('.cjs')) {
+      // Read the file
+      let content = fs.readFileSync(filePath, 'utf8');
+      
+      // Replace require statements to add .cjs extension
+      content = content.replace(/require\("([^"]*?)(?<!\.cjs)"\)/g, 'require("$1.cjs")');
+      
+      // Write back
+      fs.writeFileSync(filePath, content, 'utf8');
+      console.log(`✓ Updated ${filePath}`);
+    }
+  });
+}
+
+processDirectory('./dist/cjs');
+console.log('✓ Post-build processing complete');

shared/src/error/errorcodes.enum.ts

@@ -0,0 +1,42 @@
+export const GENERAL_ERROR_CODE = {
+  UNEXPECTED_SERVER_ERROR: ["EG001", "Unexpected server error"],
+} as const;
+
+export const USER_ERROR_CODE = {
+  WRONG_USERNAME_PASSWORD: ["EU001", "Username or password is wrong"],
+  USER_IS_DEACTIVATED: ["EU002", "User is deactivated"],
+  INVALID_REQUEST_BODY: [
+    "EU003",
+    "Invalid request body. Username and password are required.",
+  ],
+  INVALID_PARAMETERS: ["EU004", "Invalid or missing parameters."],
+  TOKEN_GENERATION_FAILED: ["EU005", "Failed to generate user token."],
+  LOGIN_FAILED: ["EU006", "Failed to log in user."],
+  PASSWORD_CHANGE_FAILED: ["EU007", "Failed to change password."],
+  SETTINGS_NOT_UPDATED: ["EU008", "Settings could not be updated."],
+  SETTINGS_NOT_FOUND: ["EU009", "Settings could not be retrieved."],
+  PASSWORDS_NOT_MATCHED: ["EU010", "The two passwords are not matching."],
+} as const;
+
+export const STORAGE_ERROR_CODE = {
+  INVALID_REQUEST_BODY: ["ES001", "Invalid request body"],
+  INVALID_PARAMETERS: [
+    "ES002",
+    "Parameter storageUUID or/and parameter values are/is missing.",
+  ],
+  STORAGE_NOT_UPDATED: ["ES003", "Storage is not updated."],
+  STORAGE_NOT_DELETED: ["ES004", "Storage is not deleted."],
+  NO_STORAGE_LOCATIONS_FOUND: ["ES005", "No storage locations found"],
+  STORAGE_NOT_CREATED: ["ES006", "Storage is not created."],
+} as const;
+
+export const PRODUCT_ERROR_CODE = {
+  PRODUCT_NOT_CREATED: ["EP001", "Error while creating product"],
+  NO_PRODUCTS_FOUND: ["EP002", "No products found"],
+  PRODUCT_NOT_FOUND: ["EP003", "Product not found"],
+  PRODUCT_AMOUNT_NOT_UPDATED: ["EP004", "Error while updating product amount"],
+  PRODUCT_NOT_UPDATED: ["EP005", "Error while updating product"],
+  PRODUCT_NOT_DELETED: ["EP006", "Error while deleting product"],
+  INVALID_REQUEST_BODY: ["EP007", "Invalid request body. Name is required."],
+  INVALID_PARAMETERS: ["EP008", "Invalid or missing parameters."],
+} as const;

shared/tsconfig.base.json

@@ -0,0 +1,9 @@
+{
+  "compilerOptions": {
+    "rootDir": "./src",
+    "target": "ES2022",
+    "strict": true,
+    "skipLibCheck": true
+  },
+  "include": ["src/**/*.ts"]
+}

shared/tsconfig.cjs.json

@@ -0,0 +1,11 @@
+{
+  "extends": "./tsconfig.base.json",
+  "compilerOptions": {
+    "outDir": "./dist/cjs",
+    "module": "CommonJS",
+    "moduleResolution": "Node",
+    "declaration": false,
+    "declarationMap": false,
+    "ignoreDeprecations": "6.0"
+  }
+}

shared/tsconfig.esm.json

@@ -0,0 +1,12 @@
+{
+  "extends": "./tsconfig.base.json",
+  "compilerOptions": {
+    "composite": true,
+    "outDir": "./dist/esm",
+    "module": "ESNext",
+    "moduleResolution": "Bundler",
+    "declaration": true,
+    "declarationDir": "./dist/types",
+    "declarationMap": true
+  }
+}

shared/tsconfig.json

@@ -0,0 +1,16 @@
+{
+  "extends": "./tsconfig.base.json",
+  "compilerOptions": {
+    "composite": true,
+    "declaration": true,
+    "declarationMap": true,
+    "emitDeclarationOnly": true,
+    "outDir": "./dist/refs",
+    "module": "CommonJS",
+    "moduleResolution": "Node",
+    "strict": true,
+    "skipLibCheck": true,
+    "ignoreDeprecations": "6.0"
+  },
+  "include": ["src/**/*.ts"]
+}

tsconfig.json

@@ -0,0 +1,11 @@
+{
+  "files": [],
+  "references": [
+    {
+      "path": "./shared"
+    },
+    {
+      "path": "./backend"
+    }
+  ]
+}