name: CI/CD Pipeline (Fast)

on:
  push:
    branches: [ production ]

env:
  NODE_VERSION: '20'
  DOCKER_IMAGE: portfolio-app
  CONTAINER_NAME: portfolio-app

jobs:
  production:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Setup Node.js (Fast)
        uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          # Disable cache to avoid slow validation
          cache: ''

      - name: Cache npm dependencies
        uses: actions/cache@v3
        with:
          path: ~/.npm
          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
          restore-keys: |
            ${{ runner.os }}-node-

      - name: Install dependencies
        run: npm ci --prefer-offline --no-audit

      - name: Run linting
        run: npm run lint

      - name: Run tests
        run: npm run test

      - name: Build application
        run: npm run build

      - name: Run security scan
        run: |
          echo "🔍 Running npm audit..."
          npm audit --audit-level=high || echo "⚠️ Some vulnerabilities found, but continuing..."

      - name: Build Docker image
        run: |
          docker build -t ${{ env.DOCKER_IMAGE }}:latest .
          docker tag ${{ env.DOCKER_IMAGE }}:latest ${{ env.DOCKER_IMAGE }}:$(date +%Y%m%d-%H%M%S)

      - name: Prepare for zero-downtime deployment
        run: |
          echo "🚀 Preparing zero-downtime deployment..."
          
          # Check if current container is running
          if docker ps -q -f name=portfolio-app | grep -q .; then
            echo "📊 Current container is running, proceeding with zero-downtime update"
            CURRENT_CONTAINER_RUNNING=true
          else
            echo "📊 No current container running, doing fresh deployment"
            CURRENT_CONTAINER_RUNNING=false
          fi
          
          # Ensure database and redis are running
          echo "🔧 Ensuring database and redis are running..."
          docker compose up -d postgres redis
          
          # Wait for services to be ready
          sleep 10

      - name: Verify secrets and variables before deployment
        run: |
          echo "🔍 Verifying secrets and variables..."
          
          # Check Variables
          if [ -z "${{ vars.NEXT_PUBLIC_BASE_URL }}" ]; then
            echo "❌ NEXT_PUBLIC_BASE_URL variable is missing!"
            exit 1
          fi
          if [ -z "${{ vars.MY_EMAIL }}" ]; then
            echo "❌ MY_EMAIL variable is missing!"
            exit 1
          fi
          if [ -z "${{ vars.MY_INFO_EMAIL }}" ]; then
            echo "❌ MY_INFO_EMAIL variable is missing!"
            exit 1
          fi
          
          # Check Secrets
          if [ -z "${{ secrets.MY_PASSWORD }}" ]; then
            echo "❌ MY_PASSWORD secret is missing!"
            exit 1
          fi
          if [ -z "${{ secrets.MY_INFO_PASSWORD }}" ]; then
            echo "❌ MY_INFO_PASSWORD secret is missing!"
            exit 1
          fi
          if [ -z "${{ secrets.ADMIN_BASIC_AUTH }}" ]; then
            echo "❌ ADMIN_BASIC_AUTH secret is missing!"
            exit 1
          fi
          
          echo "✅ All required secrets and variables are present"

      - name: Deploy with zero downtime
        run: |
          echo "🚀 Deploying with zero downtime..."
          
          if [ "$CURRENT_CONTAINER_RUNNING" = "true" ]; then
            echo "🔄 Performing rolling update..."
            
            # Generate unique container name
            TIMESTAMP=$(date +%s)
            TEMP_CONTAINER_NAME="portfolio-app-temp-$TIMESTAMP"
            echo "🔧 Using temporary container name: $TEMP_CONTAINER_NAME"
            
            # Clean up any existing temporary containers
            echo "🧹 Cleaning up any existing temporary containers..."
            
            # Remove specific known problematic containers
            docker rm -f portfolio-app-new portfolio-app-temp-* portfolio-app-backup || true
            
            # Find and remove any containers with portfolio-app in the name (except the main one)
            EXISTING_CONTAINERS=$(docker ps -a --format "table {{.Names}}" | grep "portfolio-app" | grep -v "^portfolio-app$" || true)
            if [ -n "$EXISTING_CONTAINERS" ]; then
              echo "🗑️ Removing existing portfolio-app containers:"
              echo "$EXISTING_CONTAINERS"
              echo "$EXISTING_CONTAINERS" | xargs -r docker rm -f || true
            fi
            
            # Also clean up any stopped containers
            docker container prune -f || true
            
            # Start new container with unique temporary name (no port mapping needed for health check)
            docker run -d \
              --name $TEMP_CONTAINER_NAME \
              --restart unless-stopped \
              --network portfolio_net \
              -e NODE_ENV=${{ vars.NODE_ENV }} \
              -e LOG_LEVEL=${{ vars.LOG_LEVEL }} \
              -e DATABASE_URL=postgresql://portfolio_user:portfolio_pass@postgres:5432/portfolio_db?schema=public \
              -e REDIS_URL=redis://redis:6379 \
              -e NEXT_PUBLIC_BASE_URL="${{ vars.NEXT_PUBLIC_BASE_URL }}" \
              -e NEXT_PUBLIC_UMAMI_URL="${{ vars.NEXT_PUBLIC_UMAMI_URL }}" \
              -e NEXT_PUBLIC_UMAMI_WEBSITE_ID="${{ vars.NEXT_PUBLIC_UMAMI_WEBSITE_ID }}" \
              -e MY_EMAIL="${{ vars.MY_EMAIL }}" \
              -e MY_INFO_EMAIL="${{ vars.MY_INFO_EMAIL }}" \
              -e MY_PASSWORD="${{ secrets.MY_PASSWORD }}" \
              -e MY_INFO_PASSWORD="${{ secrets.MY_INFO_PASSWORD }}" \
              -e ADMIN_BASIC_AUTH="${{ secrets.ADMIN_BASIC_AUTH }}" \
              ${{ env.DOCKER_IMAGE }}:latest
            
            # Wait for new container to be ready
            echo "⏳ Waiting for new container to be ready..."
            sleep 15
            
            # Health check new container using docker exec
            for i in {1..20}; do
              if docker exec $TEMP_CONTAINER_NAME curl -f http://localhost:3000/api/health > /dev/null 2>&1; then
                echo "✅ New container is healthy!"
                break
              fi
              echo "⏳ Health check attempt $i/20..."
              sleep 3
            done
            
            # Stop old container
            echo "🛑 Stopping old container..."
            docker stop portfolio-app || true
            
            # Remove old container
            docker rm portfolio-app || true
            
            # Rename new container
            docker rename $TEMP_CONTAINER_NAME portfolio-app
            
            # Update port mapping
            docker stop portfolio-app
            docker rm portfolio-app
            
            # Start with correct port
            docker run -d \
              --name portfolio-app \
              --restart unless-stopped \
              --network portfolio_net \
              -p 3000:3000 \
              -e NODE_ENV=${{ vars.NODE_ENV }} \
              -e LOG_LEVEL=${{ vars.LOG_LEVEL }} \
              -e DATABASE_URL=postgresql://portfolio_user:portfolio_pass@postgres:5432/portfolio_db?schema=public \
              -e REDIS_URL=redis://redis:6379 \
              -e NEXT_PUBLIC_BASE_URL="${{ vars.NEXT_PUBLIC_BASE_URL }}" \
              -e NEXT_PUBLIC_UMAMI_URL="${{ vars.NEXT_PUBLIC_UMAMI_URL }}" \
              -e NEXT_PUBLIC_UMAMI_WEBSITE_ID="${{ vars.NEXT_PUBLIC_UMAMI_WEBSITE_ID }}" \
              -e MY_EMAIL="${{ vars.MY_EMAIL }}" \
              -e MY_INFO_EMAIL="${{ vars.MY_INFO_EMAIL }}" \
              -e MY_PASSWORD="${{ secrets.MY_PASSWORD }}" \
              -e MY_INFO_PASSWORD="${{ secrets.MY_INFO_PASSWORD }}" \
              -e ADMIN_BASIC_AUTH="${{ secrets.ADMIN_BASIC_AUTH }}" \
              ${{ env.DOCKER_IMAGE }}:latest
              
            echo "✅ Rolling update completed!"
          else
            echo "🆕 Fresh deployment..."
            docker compose up -d
          fi
        env:
          NODE_ENV: ${{ vars.NODE_ENV }}
          LOG_LEVEL: ${{ vars.LOG_LEVEL }}
          NEXT_PUBLIC_BASE_URL: ${{ vars.NEXT_PUBLIC_BASE_URL }}
          NEXT_PUBLIC_UMAMI_URL: ${{ vars.NEXT_PUBLIC_UMAMI_URL }}
          NEXT_PUBLIC_UMAMI_WEBSITE_ID: ${{ vars.NEXT_PUBLIC_UMAMI_WEBSITE_ID }}
          MY_EMAIL: ${{ vars.MY_EMAIL }}
          MY_INFO_EMAIL: ${{ vars.MY_INFO_EMAIL }}
          MY_PASSWORD: ${{ secrets.MY_PASSWORD }}
          MY_INFO_PASSWORD: ${{ secrets.MY_INFO_PASSWORD }}
          ADMIN_BASIC_AUTH: ${{ secrets.ADMIN_BASIC_AUTH }}

      - name: Wait for container to be ready
        run: |
          echo "⏳ Waiting for container to be ready..."
          sleep 15
          
          # Check if container is actually running
          if ! docker ps --filter "name=portfolio-app" --format "{{.Names}}" | grep -q "portfolio-app"; then
            echo "❌ Container failed to start"
            echo "Container logs:"
            docker logs portfolio-app --tail=50
            exit 1
          fi
          
          # Wait for health check with better error handling
          echo "🏥 Performing health check..."
          for i in {1..40}; do
            # First try direct access to port 3000
            if curl -f http://localhost:3000/api/health > /dev/null 2>&1; then
              echo "✅ Application is healthy (direct access)!"
              break
            fi
            
            # If direct access fails, try through docker exec (internal container check)
            if docker exec portfolio-app curl -f http://localhost:3000/api/health > /dev/null 2>&1; then
              echo "✅ Application is healthy (internal check)!"
              # Check if port is properly exposed
              if ! curl -f http://localhost:3000/api/health > /dev/null 2>&1; then
                echo "⚠️ Application is running but port 3000 is not exposed to host"
                echo "This might be expected in some deployment configurations"
                break
              fi
            fi
            
            # Check if container is still running
            if ! docker ps --filter "name=portfolio-app" --format "{{.Names}}" | grep -q "portfolio-app"; then
              echo "❌ Container stopped during health check"
              echo "Container logs:"
              docker logs portfolio-app --tail=50
              exit 1
            fi
            
            echo "⏳ Health check attempt $i/40..."
            sleep 3
          done
          
          # Final health check - try both methods
          if docker exec portfolio-app curl -f http://localhost:3000/api/health > /dev/null 2>&1; then
            echo "✅ Final health check passed (internal)"
            # Try external access if possible
            if curl -f http://localhost:3000/api/health > /dev/null 2>&1; then
              echo "✅ External access also working"
            else
              echo "⚠️ External access not available (port not exposed)"
            fi
          else
            echo "❌ Health check timeout - application not responding"
            echo "Container logs:"
            docker logs portfolio-app --tail=100
            exit 1
          fi

      - name: Health check
        run: |
          echo "🔍 Final health verification..."
          
          # Check container status
          docker ps --filter "name=portfolio-app" --format "table {{.Names}}\t{{.Status}}\t{{.Ports}}"
          
          # Test health endpoint - try both methods
          echo "🏥 Testing health endpoint..."
          if curl -f http://localhost:3000/api/health; then
            echo "✅ Health endpoint accessible externally"
          elif docker exec portfolio-app curl -f http://localhost:3000/api/health; then
            echo "✅ Health endpoint accessible internally (external port not exposed)"
          else
            echo "❌ Health endpoint not accessible"
            exit 1
          fi
          
          # Test main page - try both methods
          echo "🌐 Testing main page..."
          if curl -f http://localhost:3000/ > /dev/null; then
            echo "✅ Main page is accessible externally"
          elif docker exec portfolio-app curl -f http://localhost:3000/ > /dev/null; then
            echo "✅ Main page is accessible internally (external port not exposed)"
          else
            echo "❌ Main page is not accessible"
            exit 1
          fi
          
          echo "✅ Deployment successful!"

      - name: Cleanup old images
        run: |
          docker image prune -f
          docker system prune -f