name: Build and Publish Docker Images

on:
  push:
    tags:
      - "v*"
      - "release-*"
    branches:
      - main
      - production
  workflow_dispatch:
    inputs:
      version:
        description: "Version tag (e.g., 1.0.0)"
        required: true
        type: string

env:
  REGISTRY: ghcr.io
  PROJECT_NAME: edh-stats

jobs:
  build:
    name: Build and Push Docker Images
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
        with:
          driver-options: image=moby/buildkit:latest

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

      - name: Extract version
        id: version
        run: |
          if [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then
            VERSION=${{ github.event.inputs.version }}
          elif [[ "${{ github.ref }}" =~ ^refs/tags/v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
            VERSION=${GITHUB_REF#refs/tags/v}
          elif [[ "${{ github.ref }}" =~ ^refs/tags/release-(.+)$ ]]; then
            VERSION=${BASH_REMATCH[1]}
          elif [[ "${{ github.ref }}" == "refs/heads/main" || "${{ github.ref }}" == "refs/heads/production" ]]; then
            VERSION=${{ github.ref_name }}-${{ github.sha }}
          else
            VERSION=latest
          fi
          echo "VERSION=${VERSION}" >> $GITHUB_OUTPUT
          echo "BACKEND_IMAGE=${{ env.REGISTRY }}/${{ github.repository_owner }}/${{ env.PROJECT_NAME }}-backend:${VERSION}" >> $GITHUB_OUTPUT
          echo "FRONTEND_IMAGE=${{ env.REGISTRY }}/${{ github.repository_owner }}/${{ env.PROJECT_NAME }}-frontend:${VERSION}" >> $GITHUB_OUTPUT

      - name: Build and push backend image
        uses: docker/build-push-action@v5
        with:
          context: ./backend
          file: ./backend/Dockerfile
          target: production
          platforms: linux/amd64
          push: true
          tags: |
            ${{ steps.version.outputs.BACKEND_IMAGE }}
            ${{ env.REGISTRY }}/${{ github.repository_owner }}/${{ env.PROJECT_NAME }}-backend:latest

      - name: Build and push frontend image
        uses: docker/build-push-action@v5
        with:
          context: ./frontend
          file: ./frontend/Dockerfile.svelte
          platforms: linux/amd64
          push: true
          tags: |
            ${{ steps.version.outputs.FRONTEND_IMAGE }}
            ${{ env.REGISTRY }}/${{ github.repository_owner }}/${{ env.PROJECT_NAME }}-frontend:latest

      - name: Generate deployment config
        id: config
        run: |
          cat > docker-compose.prod.deployed.yml << 'EOF'
          version: '3.8'

          services:
             postgres:
               image: postgres:16-alpine
               environment:
                 - POSTGRES_USER=${DB_USER:-postgres}
                 - POSTGRES_PASSWORD=${DB_PASSWORD:-edh_password}
                 - POSTGRES_DB=${DB_NAME:-edh_stats}
               ports:
                 - '${DB_PORT:-5432}:5432'
               volumes:
                 - postgres_data:/var/lib/postgresql/data
               healthcheck:
                 test:
                   - CMD-SHELL
                   - 'PGPASSWORD=${DB_PASSWORD:-edh_password} pg_isready -U ${DB_USER:-postgres} -h localhost'
                interval: 10s
                timeout: 5s
                retries: 5
              networks:
                - edh-stats-network
              restart: unless-stopped

             db-migrate:
               image: ${{ steps.version.outputs.BACKEND_IMAGE }}
               depends_on:
                 postgres:
                   condition: service_healthy
               environment:
                 - NODE_ENV=production
                 - DB_HOST=${DB_HOST:-postgres}
                 - DB_PORT=${DB_PORT:-5432}
                 - DB_NAME=${DB_NAME:-edh_stats}
                 - DB_USER=${DB_USER:-postgres}
                 - DB_PASSWORD=${DB_PASSWORD:-edh_password}
                 - DB_SEED=${DB_SEED:-false}
               command: node src/database/migrate.js migrate
              networks:
                - edh-stats-network
              restart: 'no'

             backend:
               image: ${{ steps.version.outputs.BACKEND_IMAGE }}
               depends_on:
                 db-migrate:
                   condition: service_completed_successfully
               environment:
                 - NODE_ENV=production
                 - DB_HOST=${DB_HOST:-postgres}
                 - DB_PORT=${DB_PORT:-5432}
                 - DB_NAME=${DB_NAME:-edh_stats}
                 - DB_USER=${DB_USER:-postgres}
                 - DB_PASSWORD=${DB_PASSWORD:-edh_password}
                 - JWT_SECRET=${JWT_SECRET}
                 - CORS_ORIGIN=${CORS_ORIGIN:-https://yourdomain.com}
                 - LOG_LEVEL=${LOG_LEVEL:-warn}
                 - ALLOW_REGISTRATION=${ALLOW_REGISTRATION:-false}
              restart: unless-stopped
              healthcheck:
                test:
                  - CMD
                  - wget
                  - --no-verbose
                  - --tries=1
                  - --spider
                  - http://localhost:3000/api/health
                interval: 30s
                timeout: 10s
                retries: 3
                start_period: 40s
              networks:
                - edh-stats-network
              stop_grace_period: 30s

            frontend:
              image: ${{ steps.version.outputs.FRONTEND_IMAGE }}
              ports:
                - '80:80'
                - '443:443'
              depends_on:
                - backend
              restart: unless-stopped
              networks:
                - edh-stats-network

          volumes:
            postgres_data:
              driver: local

          networks:
            edh-stats-network:
              driver: bridge
          EOF

      - name: Upload deployment config
        uses: actions/upload-artifact@v4
        with:
          name: deployment-config
          path: docker-compose.prod.deployed.yml

      - name: Create Release
        if: startsWith(github.ref, 'refs/tags/')
        uses: softprops/action-gh-release@v1
        with:
          files: docker-compose.prod.deployed.yml
          generate_release_notes: true
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Clean up old backend images
        uses: actions/delete-package-versions@v5
        continue-on-error: true
        with:
          owner: ${{ github.repository_owner }}
          package-name: ${{ env.PROJECT_NAME }}-backend
          package-type: container
          min-versions-to-keep: 10
          delete-only-untagged-versions: true

      - name: Clean up old backend images
        uses: actions/delete-package-versions@v5
        continue-on-error: true
        with:
          owner: ${{ github.repository_owner }}
          package-name: ${{ env.PROJECT_NAME }}-frontend
          package-type: container
          min-versions-to-keep: 10
          delete-only-untagged-versions: true

      - name: Post deployment info
        run: |
          echo "## Deployment Summary" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "**Version:** ${{ steps.version.outputs.VERSION }}" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "**Backend Image:** ${{ steps.version.outputs.BACKEND_IMAGE }}" >> $GITHUB_STEP_SUMMARY
          echo "**Frontend Image:** ${{ steps.version.outputs.FRONTEND_IMAGE }}" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "**Pull Commands:**" >> $GITHUB_STEP_SUMMARY
          echo "\`\`\`bash" >> $GITHUB_STEP_SUMMARY
          echo "docker pull ${{ steps.version.outputs.BACKEND_IMAGE }}" >> $GITHUB_STEP_SUMMARY
          echo "docker pull ${{ steps.version.outputs.FRONTEND_IMAGE }}" >> $GITHUB_STEP_SUMMARY
          echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "**Cleanup:** Old images (keeping last 10 versions)" >> $GITHUB_STEP_SUMMARY