name: Build and Deploy

on:
  push:
    branches: [master, dev]
  pull_request:
    branches: [master, dev]

# Allow concurrent deployments for different environments
concurrency:
  group: 'pages-${{ github.ref }}'
  cancel-in-progress: true

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        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: Run type check
        run: npm run type-check

      - name: Run linting
        run: npm run lint

      - name: Run tests
        run: npm run test

      - name: Build application
        run: npm run build
        env:
          NEXT_PUBLIC_GA_ID: ${{ secrets.NEXT_PUBLIC_GA_ID }}
          NEXT_PUBLIC_REQUIRE_CONSENT: true
          NEXT_PUBLIC_ANONYMIZE_IP: true

      - name: Upload Pages Artifact (Production)
        if: github.ref == 'refs/heads/master'
        uses: actions/upload-pages-artifact@v3
        with:
          path: ./out

      - name: Upload Preview Artifact
        if: github.ref != 'refs/heads/master'
        uses: actions/upload-artifact@v4
        with:
          name: preview-build-${{ github.run_number }}-${{ github.run_attempt }}
          path: ./out
          retention-days: 30

  # Production deployment to main GitHub Pages
  deploy-production:
    needs: build
    runs-on: ubuntu-latest

    # Only deploy to production from master branch
    if: github.ref == 'refs/heads/master'

    permissions:
      pages: write
      id-token: write

    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}

    steps:
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4

  # Preview deployment for development branches
  deploy-preview:
    needs: build
    runs-on: ubuntu-latest

    # Deploy preview for dev branches (not master, only on direct push)
    if: github.ref != 'refs/heads/master' && github.event_name == 'push'

    steps:
      - name: Debug deployment conditions
        run: |
          echo "GitHub ref: ${{ github.ref }}"
          echo "GitHub ref name: ${{ github.ref_name }}"
          echo "Event name: ${{ github.event_name }}"
          echo "Is master?: ${{ github.ref == 'refs/heads/master' }}"
          echo "Is push?: ${{ github.event_name == 'push' }}"
          echo "Should deploy?: ${{ github.ref != 'refs/heads/master' && github.event_name == 'push' }}"

      - name: Download Preview Artifact
        uses: actions/download-artifact@v4
        with:
          name: preview-build-${{ github.run_number }}-${{ github.run_attempt }}
          path: ./preview-out

      - name: Deploy to Surge.sh (Preview)
        run: |
          npm install -g surge
          # Sanitize branch name for URL (replace invalid characters with dashes)
          SANITIZED_BRANCH=$(echo "${{ github.ref_name }}" | sed 's/[^a-zA-Z0-9-]/-/g' | tr '[:upper:]' '[:lower:]')
          echo "Deploying preview for branch: ${{ github.ref_name }}"
          echo "Sanitized branch name: $SANITIZED_BRANCH"
          surge ./preview-out https://gprg-${SANITIZED_BRANCH}.surge.sh --token ${{ secrets.SURGE_TOKEN }}
        env:
          SURGE_TOKEN: ${{ secrets.SURGE_TOKEN }}

      - name: Comment PR with Preview URL
        if: github.event_name == 'pull_request'
        uses: actions/github-script@v7
        with:
          script: |
            // Sanitize branch name for URL (replace invalid characters with dashes)
            const branchName = '${{ github.ref_name }}';
            const sanitizedBranch = branchName.replace(/[^a-zA-Z0-9-]/g, '-').toLowerCase();
            const previewUrl = `https://gprg-${sanitizedBranch}.surge.sh`;

            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: `🚀 **Preview Deployment Ready!**\n\n📱 Preview URL: ${previewUrl}\n\n*This preview will be available for 30 days.*`
            });

      - name: Update Status Check
        run: |
          # Sanitize branch name for URL (replace invalid characters with dashes)
          SANITIZED_BRANCH=$(echo "${{ github.ref_name }}" | sed 's/[^a-zA-Z0-9-]/-/g' | tr '[:upper:]' '[:lower:]')
          echo "Preview deployed successfully!"
          echo "Preview URL: https://gprg-${SANITIZED_BRANCH}.surge.sh"