version-bump.yml

name: Version Bump

on:
  workflow_dispatch:
    inputs:
      bump_type:
        description: 'Type of version bump'
        required: true
        type: choice
        options:
          - patch
          - minor
          - major
          - prerelease
        default: 'patch'
      prerelease_type:
        description: 'Pre-release identifier (only for prerelease)'
        required: false
        type: choice
        options:
          - alpha
          - beta
          - rc
        default: 'beta'

jobs:
  bump-version:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
      
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      with:
        token: ${{ secrets.GITHUB_TOKEN }}
        
    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: '20.x'
        cache: 'npm'
        
    - name: Install dependencies
      run: npm ci
      
    - name: Configure Git
      run: |
        git config --local user.email "action@github.com"
        git config --local user.name "GitHub Action"
        
    - name: Get current version
      id: current
      run: |
        CURRENT_VERSION=$(node -p "require('./package.json').version")
        echo "version=$CURRENT_VERSION" >> $GITHUB_OUTPUT
        
    - name: Bump version
      id: bump
      run: |
        if [ "${{ github.event.inputs.bump_type }}" = "prerelease" ]; then
          NEW_VERSION=$(npm version prerelease --preid=${{ github.event.inputs.prerelease_type }} --no-git-tag-version)
        else
          NEW_VERSION=$(npm version ${{ github.event.inputs.bump_type }} --no-git-tag-version)
        fi
        
        # Remove the 'v' prefix that npm version adds
        NEW_VERSION=${NEW_VERSION#v}
        echo "version=$NEW_VERSION" >> $GITHUB_OUTPUT
        
    - name: Update CHANGELOG.md
      run: |
        TODAY=$(date +%Y-%m-%d)
        
        if [ -f CHANGELOG.md ]; then
          # Create new changelog entry
          {
            echo "# Changelog"
            echo ""
            echo "## [${{ steps.bump.outputs.version }}] - $TODAY"
            echo ""
            echo "### Added"
            echo "- New features will be listed here"
            echo ""
            echo "### Changed" 
            echo "- Changes will be listed here"
            echo ""
            echo "### Fixed"
            echo "- Bug fixes will be listed here"
            echo ""
            # Append existing changelog content (skip the first line)
            tail -n +2 CHANGELOG.md
          } > CHANGELOG_NEW.md
          
          mv CHANGELOG_NEW.md CHANGELOG.md
        else
          # Create new changelog
          cat > CHANGELOG.md << EOF
# Changelog

## [${{ steps.bump.outputs.version }}] - $TODAY

### Added
- Initial release

### Changed
- Project setup and configuration

### Fixed
- Initial bug fixes and improvements
EOF
        fi
        
    - name: Create Pull Request
      uses: peter-evans/create-pull-request@v5
      with:
        token: ${{ secrets.GITHUB_TOKEN }}
        commit-message: |
          chore: bump version to ${{ steps.bump.outputs.version }}
          
          - Update package.json version from ${{ steps.current.outputs.version }} to ${{ steps.bump.outputs.version }}
          - Update CHANGELOG.md with new version entry
          - Prepare for release ${{ steps.bump.outputs.version }}
        title: 'chore: bump version to ${{ steps.bump.outputs.version }}'
        body: |
          ## Version Bump: ${{ steps.current.outputs.version }} → ${{ steps.bump.outputs.version }}
          
          ### Changes
          - 📦 Bumped version from `${{ steps.current.outputs.version }}` to `${{ steps.bump.outputs.version }}`
          - 📝 Updated CHANGELOG.md with new version entry
          - 🔖 Prepared for ${{ github.event.inputs.bump_type }} release
          
          ### Type of Bump
          **${{ github.event.inputs.bump_type }}** ${{ github.event.inputs.bump_type == 'prerelease' && format('({0})', github.event.inputs.prerelease_type) || '' }}
          
          ### Next Steps
          1. ✅ Review the changes
          2. ✅ Update CHANGELOG.md with actual changes
          3. ✅ Merge this PR
          4. 🚀 Create a release with tag `v${{ steps.bump.outputs.version }}`
          
          ### Automatic Actions After Merge
          - CI will run tests and build
          - Release workflow can be triggered manually
          - Deployment will happen automatically on tag creation
          
          ---
          🤖 This PR was created automatically by the Version Bump workflow.
        branch: version-bump-${{ steps.bump.outputs.version }}
        delete-branch: true
        
    - name: Output summary
      run: |
        echo "## Version Bump Summary" >> $GITHUB_STEP_SUMMARY
        echo "- **Previous Version**: ${{ steps.current.outputs.version }}" >> $GITHUB_STEP_SUMMARY
        echo "- **New Version**: ${{ steps.bump.outputs.version }}" >> $GITHUB_STEP_SUMMARY
        echo "- **Bump Type**: ${{ github.event.inputs.bump_type }}" >> $GITHUB_STEP_SUMMARY
        echo "- **Pull Request**: Created automatically" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        echo "### Next Steps" >> $GITHUB_STEP_SUMMARY
        echo "1. Review and merge the created pull request" >> $GITHUB_STEP_SUMMARY
        echo "2. Update CHANGELOG.md with actual changes" >> $GITHUB_STEP_SUMMARY
        echo "3. Create a release tag \`v${{ steps.bump.outputs.version }}\`" >> $GITHUB_STEP_SUMMARY