#!/bin/bash

# Server setup untuk optimasi memory dan build
# Jalankan dengan sudo di server production

echo "🔧 Setting up server for optimized building..."

# 1. Check current memory
echo "📊 Current memory status:"
free -h

# 2. Setup swap file (temporary solution for low memory)
echo "💾 Setting up swap file (1GB)..."
if [ ! -f /swapfile ]; then
    fallocate -l 1G /swapfile
    chmod 600 /swapfile
    mkswap /swapfile
    sysctl vm.swappiness=10
    echo '/swapfile none swap sw 0 0' >> /etc/fstab
    echo 'vm.swappiness=10' >> /etc/sysctl.conf
    swapon /swapfile
    echo "✅ Swap file created and activated"
else
    echo "ℹ️ Swap file already exists"
fi

# 3. Optimize Node.js for production
echo "⚙️ Optimizing Node.js..."
npm config set fund false
npm config set audit false

# 4. Install PM2 untuk process management
echo "📦 Installing PM2..."
npm install -g pm2

# 5. Create PM2 ecosystem file for build process
cat > ecosystem.config.js << 'EOF'
module.exports = {
  apps: [{
    name: 'build-app',
    script: 'npm',
    args: 'run build:prod',
    instances: 1,
    autorestart: false,
    watch: false,
    max_memory_restart: '1G',
    env: {
      NODE_ENV: 'production',
      NODE_OPTIONS: '--max-old-space-size=1024'
    }
  }]
}
EOF

echo "✅ Server setup completed!"
echo ""
echo "📝 Now you can:"
echo "  1. Build with memory limit: npm run build:prod"
echo "  2. Build with PM2: pm2 start ecosystem.config.js"
echo "  3. Monitor: pm2 monit"
echo "  4. Check memory: free -h"