name: Promote to Stable

on:
  workflow_dispatch:
    inputs:
      version_bump:
        description: 'Version bump type'
        required: true
        default: 'minor'
        type: choice
        options:
          - patch
          - minor
          - major

jobs:
  promote:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
    
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'
          registry-url: 'https://registry.npmjs.org'

      - name: Configure Git
        run: |
          git config --global user.name "github-actions[bot]"
          git config --global user.email "github-actions[bot]@users.noreply.github.com"
          git config --global url."https://x-access-token:${{ secrets.GITHUB_TOKEN }}@github.com/".insteadOf "https://github.com/"

      - name: Switch to stable branch
        run: |
          git checkout stable
          git pull origin stable

      - name: Merge main into stable
        run: |
          git merge origin/main --no-edit

      - name: Install dependencies
        run: npm ci

      - name: Get current version and calculate new version
        id: version
        run: |
          # Get current version from package.json
          CURRENT_VERSION=$(node -p "require('./package.json').version")
          echo "current_version=$CURRENT_VERSION" >> $GITHUB_OUTPUT
          
          # Remove beta suffix if present
          BASE_VERSION=$(echo $CURRENT_VERSION | sed 's/-beta\.[0-9]\+//')
          echo "base_version=$BASE_VERSION" >> $GITHUB_OUTPUT
          
          # Calculate new version based on bump type
          IFS='.' read -ra VERSION_PARTS <<< "$BASE_VERSION"
          MAJOR=${VERSION_PARTS[0]}
          MINOR=${VERSION_PARTS[1]}
          PATCH=${VERSION_PARTS[2]}
          
          case "${{ github.event.inputs.version_bump }}" in
            "major")
              NEW_VERSION="$((MAJOR + 1)).0.0"
              ;;
            "minor")
              NEW_VERSION="$MAJOR.$((MINOR + 1)).0"
              ;;
            "patch")
              NEW_VERSION="$MAJOR.$MINOR.$((PATCH + 1))"
              ;;
            *)
              NEW_VERSION="$BASE_VERSION"
              ;;
          esac
          
          # Check if calculated version already exists on NPM and increment if necessary
          while npm view bmad-method@$NEW_VERSION version >/dev/null 2>&1; do
            echo "Version $NEW_VERSION already exists, incrementing..."
            IFS='.' read -ra NEW_VERSION_PARTS <<< "$NEW_VERSION"
            NEW_MAJOR=${NEW_VERSION_PARTS[0]}
            NEW_MINOR=${NEW_VERSION_PARTS[1]}
            NEW_PATCH=${NEW_VERSION_PARTS[2]}
            
            case "${{ github.event.inputs.version_bump }}" in
              "major")
                NEW_VERSION="$((NEW_MAJOR + 1)).0.0"
                ;;
              "minor")
                NEW_VERSION="$NEW_MAJOR.$((NEW_MINOR + 1)).0"
                ;;
              "patch")
                NEW_VERSION="$NEW_MAJOR.$NEW_MINOR.$((NEW_PATCH + 1))"
                ;;
            esac
          done
          
          echo "new_version=$NEW_VERSION" >> $GITHUB_OUTPUT
          echo "Promoting from $CURRENT_VERSION to $NEW_VERSION"

      - name: Update package.json versions
        run: |
          # Update main package.json
          npm version ${{ steps.version.outputs.new_version }} --no-git-tag-version
          
          # Update installer package.json
          sed -i 's/"version": ".*"/"version": "${{ steps.version.outputs.new_version }}"/' tools/installer/package.json

      - name: Update package-lock.json
        run: npm install --package-lock-only

      - name: Commit stable release
        run: |
          git add .
          git commit -m "feat: promote to stable ${{ steps.version.outputs.new_version }}

          BREAKING CHANGE: Promote beta features to stable release

          - Update version from ${{ steps.version.outputs.current_version }} to ${{ steps.version.outputs.new_version }}
          - Automated promotion via GitHub Actions"

      - name: Push stable release
        run: |
          git remote set-url origin https://x-access-token:${{ secrets.GITHUB_TOKEN }}@github.com/${{ github.repository }}.git
          git push origin stable

      - name: Switch back to main
        run: git checkout main

      - name: Summary
        run: |
          echo "🎉 Successfully promoted to stable!"
          echo "📦 Version: ${{ steps.version.outputs.new_version }}"
          echo "🚀 The stable release will be automatically published to NPM via semantic-release"
          echo "✅ Users running 'npx bmad-method install' will now get version ${{ steps.version.outputs.new_version }}"