name: CI/CD Pipeline

on:
  push:
    branches: [main, production]
  pull_request:
    branches: [main, production]

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  # Test Job
  test:
    name: Run Tests
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: 'npm'

      - name: Install dependencies
        run: npm ci

      - name: Create test environment file
        run: |
          cat > .env <<EOF
          NODE_ENV=test
          NEXT_PUBLIC_BASE_URL=http://localhost:3000
          MY_EMAIL=test@example.com
          MY_INFO_EMAIL=test@example.com
          MY_PASSWORD=test
          MY_INFO_PASSWORD=test
          NEXT_PUBLIC_UMAMI_URL=https://analytics.dk0.dev
          NEXT_PUBLIC_UMAMI_WEBSITE_ID=b3665829-927a-4ada-b9bb-fcf24171061e
          ADMIN_BASIC_AUTH=admin:test
          LOG_LEVEL=info
          EOF

      - name: Run linting
        run: npm run lint

      - name: Run tests
        run: npm run test

      - name: Build application
        run: npm run build

  # Security scan
  security:
    name: Security Scan
    runs-on: ubuntu-latest
    needs: test
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Run Trivy vulnerability scanner
        uses: aquasecurity/trivy-action@master
        with:
          scan-type: 'fs'
          scan-ref: '.'
          format: 'sarif'
          output: 'trivy-results.sarif'

      - name: Upload Trivy scan results to GitHub Security tab
        uses: github/codeql-action/upload-sarif@v2
        if: always()
        with:
          sarif_file: 'trivy-results.sarif'

  # Build and push Docker image
  build:
    name: Build and Push Docker Image
    runs-on: ubuntu-latest
    needs: [test, security]
    if: github.event_name == 'push' && (github.ref == 'refs/heads/main' || github.ref == 'refs/heads/production')
    permissions:
      contents: read
      packages: write
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Log in to Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=ref,event=branch
            type=ref,event=pr
            type=sha,prefix={{branch}}-
            type=raw,value=latest,enable={{is_default_branch}}

      - name: Create production environment file
        run: |
          cat > .env <<EOF
          NODE_ENV=production
          NEXT_PUBLIC_BASE_URL=${{ vars.NEXT_PUBLIC_BASE_URL }}
          MY_EMAIL=${{ vars.MY_EMAIL }}
          MY_INFO_EMAIL=${{ vars.MY_INFO_EMAIL }}
          MY_PASSWORD=${{ secrets.MY_PASSWORD }}
          MY_INFO_PASSWORD=${{ secrets.MY_INFO_PASSWORD }}
          NEXT_PUBLIC_UMAMI_URL=${{ vars.NEXT_PUBLIC_UMAMI_URL }}
          NEXT_PUBLIC_UMAMI_WEBSITE_ID=${{ vars.NEXT_PUBLIC_UMAMI_WEBSITE_ID }}
          ADMIN_BASIC_AUTH=${{ secrets.ADMIN_BASIC_AUTH }}
          LOG_LEVEL=info
          EOF

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

  # Deploy to server
  deploy:
    name: Deploy to Server
    runs-on: self-hosted
    needs: build
    if: github.event_name == 'push' && github.ref == 'refs/heads/production'
    environment: production
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Log in to Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Deploy to server
        run: |
          # Set deployment variables
          export IMAGE_NAME="${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:production"
          export CONTAINER_NAME="portfolio-app"
          export COMPOSE_FILE="docker-compose.prod.yml"
          
          # Pull latest image
          docker pull $IMAGE_NAME
          
          # Stop and remove old container
          docker-compose -f $COMPOSE_FILE down || true
          
          # Start new container
          docker-compose -f $COMPOSE_FILE up -d
          
          # Wait for health check
          echo "Waiting for application to be healthy..."
          timeout 60 bash -c 'until curl -f http://localhost:3000/api/health; do sleep 2; done'
          
          # Verify deployment
          if curl -f http://localhost:3000/api/health; then
            echo "✅ Deployment successful!"
          else
            echo "❌ Deployment failed!"
            docker-compose -f $COMPOSE_FILE logs
            exit 1
          fi

      - name: Cleanup old images
        run: |
          # Remove unused images older than 7 days
          docker image prune -f --filter "until=168h"
          
          # Remove unused containers
          docker container prune -f