name: Build and Publish Docker Image

on:
  pull_request:
    branches:
      - main

jobs:
  build-and-validate:
    name: Build and Validate
    runs-on: ubuntu
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Validate PR Title
        run: |
          PR_TITLE="${{ github.event.pull_request.title }}"
          echo "PR Title: $PR_TITLE"
          
          # Check if PR title starts with valid prefix
          if [[ "$PR_TITLE" =~ ^(Release|Feature|Hotfix|Bugfix)/ ]]; then
            echo "✅ PR title is valid: $PR_TITLE"
          else
            echo "❌ PR title must start with one of: Release/, Feature/, Hotfix/, or Bugfix/"
            echo "Current title: $PR_TITLE"
            exit 1
          fi

      - name: Build Docker Image
        run: |
          docker build --build-arg VERSION=test --build-arg BUILD_DATE=$(date -u +"%Y-%m-%dT%H:%M:%SZ") -t threejs-test:test .

      - name: Validate Image
        run: |
          docker run --rm -d --name test-container -p 8080:80 threejs-test:test
          sleep 2
          curl -f http://localhost:8080 || exit 1
          docker stop test-container

      - name: Job Summary
        if: success()
        run: |
          SUMMARY_FILE="${FORGEJO_STEP_SUMMARY}"
          cat >> "$SUMMARY_FILE" << 'EOF'
          ## ✅ Build and Validation Complete
          
          - ✅ Docker image built successfully
          - ✅ Image validated (container started and HTTP check passed)
          
          The image is ready for deployment.
          EOF
          cat "$SUMMARY_FILE"