release.yml

name: Release

on:
  push:
    tags:
      - 'v*.*.*'

env:
  PYTHON_VERSION: '3.8'

jobs:
  test:
    name: Test Before Release
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v4

    - name: Set up Python
      uses: actions/setup-python@v4
      with:
        python-version: ${{ env.PYTHON_VERSION }}

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install -r requirements.txt

    - name: Run tests
      run: |
        pytest tests/ --cov=. --cov-report=xml

  build:
    name: Build Release
    runs-on: ubuntu-latest
    needs: test

    steps:
    - uses: actions/checkout@v4

    - name: Set up Python
      uses: actions/setup-python@v4
      with:
        python-version: ${{ env.PYTHON_VERSION }}

    - name: Install build dependencies
      run: |
        python -m pip install --upgrade pip
        pip install build twine

    - name: Build package
      run: |
        python -m build

    - name: Upload build artifacts
      uses: actions/upload-artifact@v3
      with:
        name: dist
        path: dist/

  docker:
    name: Build and Push Docker Image
    runs-on: ubuntu-latest
    needs: test

    steps:
    - uses: actions/checkout@v4

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

    - name: Log in to Docker Hub
      uses: docker/login-action@v3
      with:
        username: ${{ secrets.DOCKER_USERNAME }}
        password: ${{ secrets.DOCKER_PASSWORD }}

    - name: Extract metadata
      id: meta
      uses: docker/metadata-action@v5
      with:
        images: manhattan-power-grid/app
        tags: |
          type=ref,event=tag
          type=semver,pattern={{version}}
          type=semver,pattern={{major}}.{{minor}}

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

  release:
    name: Create GitHub Release
    runs-on: ubuntu-latest
    needs: [build, docker]

    steps:
    - uses: actions/checkout@v4
      with:
        fetch-depth: 0

    - name: Download build artifacts
      uses: actions/download-artifact@v3
      with:
        name: dist
        path: dist/

    - name: Generate changelog
      run: |
        # Get the tag name
        TAG_NAME=${GITHUB_REF#refs/tags/}
        echo "TAG_NAME=$TAG_NAME" >> $GITHUB_ENV

        # Generate changelog from git commits
        PREVIOUS_TAG=$(git describe --tags --abbrev=0 HEAD^ 2>/dev/null || echo "")
        if [ -n "$PREVIOUS_TAG" ]; then
          echo "## Changes since $PREVIOUS_TAG" > CHANGELOG.md
          git log --oneline --no-merges $PREVIOUS_TAG..HEAD >> CHANGELOG.md
        else
          echo "## Initial Release" > CHANGELOG.md
          git log --oneline --no-merges >> CHANGELOG.md
        fi

    - name: Create Release
      uses: actions/create-release@v1
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        tag_name: ${{ env.TAG_NAME }}
        release_name: Manhattan Power Grid ${{ env.TAG_NAME }}
        body_path: CHANGELOG.md
        draft: false
        prerelease: ${{ contains(env.TAG_NAME, '-') }}

    - name: Upload Release Assets
      uses: actions/upload-release-asset@v1
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        upload_url: ${{ steps.create_release.outputs.upload_url }}
        asset_path: dist/
        asset_name: manhattan-power-grid-${{ env.TAG_NAME }}.tar.gz
        asset_content_type: application/gzip

  deploy:
    name: Deploy Release
    runs-on: ubuntu-latest
    needs: release
    environment: production

    steps:
    - uses: actions/checkout@v4

    - name: Deploy to production
      run: |
        echo "Deploying release ${{ env.TAG_NAME }} to production..."
        # Add actual deployment commands here

    - name: Update deployment status
      run: |
        echo "✅ Release ${{ env.TAG_NAME }} deployed successfully!"

  notify:
    name: Release Notifications
    runs-on: ubuntu-latest
    needs: [deploy]
    if: always()

    steps:
    - name: Notify on success
      if: success()
      run: |
        echo "🎉 Release ${{ env.TAG_NAME }} completed successfully!"

    - name: Notify on failure
      if: failure()
      run: |
        echo "❌ Release ${{ env.TAG_NAME }} failed!"