chore: Unify backend express project into ESM (#281)

backend/routes/cases/index.js

@@ -0,0 +1,68 @@
+import express from 'express';
+const router = express.Router();
+import { DataTypes, Op } from 'sequelize';
+import defineCase from '../../models/cases.js';
+import authMiddleware from '../../middleware/auth.js';
+import visibilityMiddleware from '../../middleware/verifyVisible.js';
+
+export default function (sequelize) {
+  const { verifySignedIn } = authMiddleware(sequelize);
+  const { verifyProjectVisibleFromFolderId } = visibilityMiddleware(sequelize);
+  const Case = defineCase(sequelize, DataTypes);
+
+  router.get('/', verifySignedIn, verifyProjectVisibleFromFolderId, async (req, res) => {
+    const { folderId, priority, type, q } = req.query;
+
+    if (!folderId) {
+      return res.status(400).json({ error: 'folderId is required' });
+    }
+
+    try {
+      const whereClause = {
+        folderId: folderId,
+      };
+
+      if (q) {
+        const searchTerm = q.trim();
+
+        if (searchTerm.length > 100) {
+          return res.status(400).json({ error: 'Search term too long' });
+        }
+
+        if (searchTerm.length >= 2) {
+          whereClause[Op.or] = [{ title: { [Op.like]: `%${q}%` } }];
+        }
+      }
+
+      if (priority) {
+        const priorityValues = priority
+          .split(',')
+          .map((p) => parseInt(p.trim(), 10))
+          .filter((p) => !isNaN(p));
+        if (priorityValues.length > 0) {
+          whereClause.priority = { [Op.in]: priorityValues };
+        }
+      }
+
+      if (type) {
+        const typeValues = type
+          .split(',')
+          .map((t) => parseInt(t.trim(), 10))
+          .filter((t) => !isNaN(t));
+        if (typeValues.length > 0) {
+          whereClause.type = { [Op.in]: typeValues };
+        }
+      }
+
+      const cases = await Case.findAll({
+        where: whereClause,
+      });
+      res.json(cases);
+    } catch (error) {
+      console.error(error);
+      res.status(500).send('Internal Server Error');
+    }
+  });
+
+  return router;
+}