Initial commit

Co-authored-by: Cursor <cursoragent@cursor.com>

db-connection.js

@@ -0,0 +1,62 @@
+const mongoose = require('mongoose');
+require('./models'); // Load all schemas
+
+/**
+ * Connect to MongoDB with reconnection logic
+ * @param {string} uri - MongoDB connection URI (from process.env.MONGODB_URI)
+ * @param {object} options - Optional Mongoose connection options
+ * @returns {Promise<void>}
+ */
+async function connectMongoDB(uri, options = {}) {
+    if (!uri) {
+        throw new Error('MONGODB_URI is required. Add it to your .env file.');
+    }
+
+    const defaultOptions = {
+        serverSelectionTimeoutMS: 5000,
+        socketTimeoutMS: 45000,
+        ...options
+    };
+
+    try {
+        await mongoose.connect(uri, defaultOptions);
+        console.log('✓ Connected to MongoDB');
+        
+        // Handle connection events
+        mongoose.connection.on('error', (err) => {
+            console.error('MongoDB connection error:', err);
+        });
+
+        mongoose.connection.on('disconnected', () => {
+            console.warn('MongoDB disconnected. Attempting to reconnect...');
+        });
+
+        mongoose.connection.on('reconnected', () => {
+            console.log('✓ MongoDB reconnected');
+        });
+
+    } catch (err) {
+        console.error('Failed to connect to MongoDB:', err.message);
+        console.error('Stack:', err.stack);
+        throw err;
+    }
+}
+
+/**
+ * Gracefully close MongoDB connection
+ * @returns {Promise<void>}
+ */
+async function closeMongoDB() {
+    try {
+        await mongoose.connection.close();
+        console.log('MongoDB connection closed');
+    } catch (err) {
+        console.error('Error closing MongoDB:', err);
+    }
+}
+
+module.exports = {
+    connectMongoDB,
+    closeMongoDB,
+    mongoose
+};