📄 production optimizations

lib/env-validation.ts

@@ -0,0 +1,47 @@
+/**
+ * Environment variable validation for production builds
+ * Ensures all required environment variables are set before deployment
+ */
+
+const requiredEnvVars = [
+  'NEXT_PUBLIC_SITE_URL',
+  'NODE_ENV',
+] as const
+
+const optionalEnvVars = [
+  'PORT',
+  'HOSTNAME',
+  'NEXT_PUBLIC_GA_ID',
+] as const
+
+export function validateEnvironment() {
+  const missingVars: string[] = []
+
+  // Check required variables
+  for (const varName of requiredEnvVars) {
+    if (!process.env[varName]) {
+      missingVars.push(varName)
+    }
+  }
+
+  if (missingVars.length > 0) {
+    console.error('❌ Missing required environment variables:')
+    missingVars.forEach(varName => {
+      console.error(`   - ${varName}`)
+    })
+    console.error('\n💡 Check .env.example for reference')
+    throw new Error('Environment validation failed')
+  }
+
+  // Log configuration (safe - no secrets)
+  if (process.env.NODE_ENV === 'production') {
+    console.log('✅ Environment validation passed')
+    console.log(`   - NEXT_PUBLIC_SITE_URL: ${process.env.NEXT_PUBLIC_SITE_URL}`)
+    console.log(`   - PORT: ${process.env.PORT || '3030'}`)
+  }
+}
+
+// Run validation for production builds
+if (process.env.NODE_ENV === 'production') {
+  validateEnvironment()
+}