initial commit

lib/mongodb.ts

@@ -0,0 +1,87 @@
+import mongoose from 'mongoose'
+
+const MONGODB_URI = process.env.MONGODB_URI || 'mongodb://localhost:27017/siliconpin'
+
+if (!MONGODB_URI) {
+  throw new Error('Please define the MONGODB_URI environment variable inside .env.local')
+}
+
+interface CachedConnection {
+  conn: typeof mongoose | null
+  promise: Promise<typeof mongoose> | null
+}
+
+// Global variable to cache the database connection across hot reloads in development
+declare global {
+  var mongoose: CachedConnection | undefined
+}
+
+let cached: CachedConnection = global.mongoose || { conn: null, promise: null }
+
+if (!global.mongoose) {
+  global.mongoose = cached
+}
+
+async function connectDB(): Promise<typeof mongoose> {
+  // Skip database connection during build phase
+  const isBuildTime = process.env.NEXT_PHASE === 'phase-production-build'
+  if (isBuildTime) {
+    throw new Error('Database connection skipped during build phase')
+  }
+
+  if (cached.conn) {
+    return cached.conn
+  }
+
+  if (!cached.promise) {
+    const opts = {
+      bufferCommands: false,
+      maxPoolSize: 10,
+      minPoolSize: 5,
+      socketTimeoutMS: 45000,
+      connectTimeoutMS: 10000,
+      serverSelectionTimeoutMS: 10000,
+    }
+
+    cached.promise = mongoose.connect(MONGODB_URI, opts)
+  }
+
+  try {
+    cached.conn = await cached.promise
+    console.log('Connected to MongoDB')
+    return cached.conn
+  } catch (error) {
+    cached.promise = null
+    console.error('MongoDB connection error:', error)
+    throw error
+  }
+}
+
+// Test MongoDB connection
+export async function testMongoConnection(): Promise<boolean> {
+  try {
+    const connection = await connectDB()
+
+    // Test database operations
+    await connection.connection.db.admin().ping()
+    console.log('✅ MongoDB connection test successful')
+
+    // Optional: Test if we can create a test collection
+    const testCollection = connection.connection.db.collection('connection_test')
+    await testCollection.insertOne({ test: true, timestamp: new Date() })
+    await testCollection.deleteOne({ test: true })
+
+    console.log('✅ MongoDB read/write test successful')
+    return true
+  } catch (error) {
+    console.error('❌ MongoDB connection test failed:', error)
+    console.error('Please check:')
+    console.error('1. MongoDB is running (docker-compose up -d in /mongo directory)')
+    console.error('2. MONGODB_URI in .env is correct')
+    console.error('3. MongoDB credentials are valid')
+    return false
+  }
+}
+
+export default connectDB
+export { connectDB }