name: Pull Request Validation

on:
  pull_request:
    branches: [ develop, staging, master ]

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

jobs:
  validate:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      pull-requests: write

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

    - name: Set up Node.js
      uses: actions/setup-node@v4
      with:
        node-version: '18'
        cache: 'npm'
        cache-dependency-path: tests/package.json

    - name: Install Playwright dependencies
      run: |
        cd tests
        npm install
        npx playwright install --with-deps

    - name: Start local server
      run: |
        npm start &
        sleep 5
        curl -f http://localhost:8080/ || exit 1
      env:
        CI: true

    - name: Run Playwright tests locally
      run: |
        cd tests
        BASE_URL=http://localhost:8080 npx playwright test
      env:
        CI: true

    - name: Build Docker image
      uses: docker/build-push-action@v5
      with:
        context: .
        push: false
        tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:pr-${{ github.event.number }}

    - name: Validate Kubernetes manifests
      run: |
        # Install kubeval for validation
        curl -L https://github.com/instrumenta/kubeval/releases/latest/download/kubeval-linux-amd64.tar.gz | tar xz
        sudo mv kubeval /usr/local/bin
        
        # Validate all manifests
        kubeval manifests/dev/*.yml
        kubeval manifests/staging/*.yml
        kubeval manifests/prod/*.yml

    - name: Upload PR test results
      uses: actions/upload-artifact@v4
      if: always()
      with:
        name: pr-test-results-${{ github.event.number }}
        path: |
          tests/playwright-report/
          tests/test-results/
        retention-days: 7

    - name: Comment PR with test results
      uses: actions/github-script@v7
      if: always()
      with:
        script: |
          const { owner, repo } = context.repo;
          const issue_number = context.payload.pull_request.number;
          
          const comment = `## 🧪 PR Validation Results
          
          **Tests Status**: ${{ job.status == 'success' && '✅ Passed' || '❌ Failed' }}
          **Commit**: ${{ github.event.pull_request.head.sha }}
          
          ### Test Summary:
          - ✅ Local server started successfully
          - ✅ Playwright tests executed
          - ✅ Docker image built
          - ✅ Kubernetes manifests validated
          
          ### Artifacts:
          - Test results and screenshots are available in the workflow artifacts
          
          ${{ job.status == 'success' && '🚀 Ready for merge!' || '⚠️ Please check the failed tests and fix issues before merging.' }}
          `;
          
          await github.rest.issues.createComment({
            owner,
            repo,
            issue_number,
            body: comment
          });