adjusted new backend with new routes

backendV2/routes/app/loanMgmt.route.js

@@ -1,5 +1,93 @@
 import express from "express";
-
+import { authenticate, generateToken } from "../../services/authentication.js";
 const router = express.Router();
+import dotenv from "dotenv";
+dotenv.config();
+
+// database funcs import
+import {
+  createLoanInDatabase,
+  getLoanInfoWithID,
+  getLoansFromDatabase,
+} from "./database/loansMgmt.database.js";
+import { sendMailLoan } from "./services/mailer.js";
+
+router.post("/createLoan", authenticate, async (req, res) => {
+  try {
+    const { items, startDate, endDate, note } = req.body || {};
+
+    if (!Array.isArray(items) || items.length === 0) {
+      return res.status(400).json({ message: "Items array is required" });
+    }
+
+    // If dates are not provided, default to now .. +7 days
+    const start =
+      startDate ?? new Date().toISOString().slice(0, 19).replace("T", " ");
+    const end =
+      endDate ??
+      new Date(Date.now() + 7 * 24 * 60 * 60 * 1000)
+        .toISOString()
+        .slice(0, 19)
+        .replace("T", " ");
+
+    // Coerce item IDs to numbers and filter invalids
+    const itemIds = items
+      .map((v) => Number(v))
+      .filter((n) => Number.isFinite(n));
+
+    if (itemIds.length === 0) {
+      return res.status(400).json({ message: "No valid item IDs provided" });
+    }
+
+    const result = await createLoanInDatabase(
+      req.user.username,
+      start,
+      end,
+      note,
+      itemIds
+    );
+
+    if (result.success) {
+      const mailInfo = await getLoanInfoWithID(result.data.id);
+      console.log(mailInfo);
+      sendMailLoan(
+        mailInfo.data.username,
+        mailInfo.data.loaned_items_name,
+        mailInfo.data.start_date,
+        mailInfo.data.end_date,
+        mailInfo.data.created_at
+      );
+      return res.status(201).json({
+        message: "Loan created successfully",
+        loanId: result.data.id,
+        loanCode: result.data.loan_code,
+      });
+    }
+
+    if (result.code === "CONFLICT") {
+      return res
+        .status(409)
+        .json({ message: "Items not available in the selected period" });
+    }
+
+    if (result.code === "BAD_REQUEST") {
+      return res.status(400).json({ message: result.message });
+    }
+
+    return res.status(500).json({ message: "Failed to create loan" });
+  } catch (err) {
+    console.error("createLoan error:", err);
+    return res.status(500).json({ message: "Failed to create loan" });
+  }
+});
+
+router.get("/loans", authenticate, async (req, res) => {
+  const result = await getLoansFromDatabase(req.user.username);
+  if (result.success) {
+    res.status(200).json(result.data);
+  } else {
+    res.status(500).json({ message: "Failed to fetch loans" });
+  }
+});
 
 export default router;