name: Version Bump

on:
  pull_request:
    types:
      - closed
    labels:
      - 'release'

permissions:
  contents: write

jobs:
  bump-version:
    if: github.event.pull_request.merged == true
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Setup Bun
        uses: oven-sh/setup-bun@v2
        with:
          bun-version: '1.3.1'

      - name: Configure Git
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"

      - name: Extract bump info from PR
        id: bump_info
        run: |
          BUMP_TYPE=$(echo "${{ github.event.pull_request.body }}" | grep -oP "bump: \K(major|minor|patch)" || echo "patch")
          IS_RELEASE=$(echo "${{ github.event.pull_request.body }}" | grep -q "is_release: true" && echo "true" || echo "false")
          
          echo "bump_type=$BUMP_TYPE" >> $GITHUB_OUTPUT
          echo "is_release=$IS_RELEASE" >> $GITHUB_OUTPUT

      - name: Calculate new version
        id: version
        run: |
          CURRENT_VERSION=$(node -p "require('./package.json').version")
          BASE_VERSION=$(echo $CURRENT_VERSION | sed 's/-.*$//')
          IFS='.' read -r -a VERSION_PARTS <<< "$BASE_VERSION"
          
          MAJOR="${VERSION_PARTS[0]}"
          MINOR="${VERSION_PARTS[1]}"
          PATCH="${VERSION_PARTS[2]}"
          
          case "${{ steps.bump_info.outputs.bump_type }}" in
            major)
              MAJOR=$((MAJOR + 1))
              MINOR=0
              PATCH=0
              ;;
            minor)
              MINOR=$((MINOR + 1))
              PATCH=0
              ;;
            patch)
              PATCH=$((PATCH + 1))
              ;;
          esac
          
          NEW_VERSION="${MAJOR}.${MINOR}.${PATCH}"
          
          # Add pre-release suffix if NOT a production release AND NOT on main branch
          if [ "${{ steps.bump_info.outputs.is_release }}" != "true" ] && [ "${{ github.ref_name }}" != "main" ]; then
            BETA_COUNT=$(git tag -l "v${NEW_VERSION}-beta.*" | wc -l)
            BETA_NUM=$((BETA_COUNT + 1))
            NEW_VERSION="${NEW_VERSION}-beta.${BETA_NUM}"
          fi
          
          echo "new_version=$NEW_VERSION" >> $GITHUB_OUTPUT

      - name: Update package.json
        run: bun x json -I -f package.json -e "this.version='${{ steps.version.outputs.new_version }}'"

      - name: Update Chrome manifest
        run: bun x json -I -f manifest/chrome.json -e "this.version='${{ steps.version.outputs.new_version }}'"

      - name: Update Firefox manifest
        run: bun x json -I -f manifest/firefox.json -e "this.version='${{ steps.version.outputs.new_version }}'"

      - name: Update Safari manifest
        run: bun x json -I -f safari/Mue\ Extension/Resources/manifest.json -e "this.version='${{ steps.version.outputs.new_version }}'"

      - name: Update Safari Xcode (4 MARKETING_VERSION entries)
        run: sed -i '' "s/MARKETING_VERSION = [^;]*/MARKETING_VERSION = ${{ steps.version.outputs.new_version }}/g" safari/Mue.xcodeproj/project.pbxproj

      - name: Update constants.js
        run: sed -i '' "s/export const VERSION = '[^']*'/export const VERSION = '${{ steps.version.outputs.new_version }}'/" src/config/constants.js

      - name: Commit and tag
        run: |
          git add package.json manifest/chrome.json manifest/firefox.json safari/Mue\ Extension/Resources/manifest.json safari/Mue.xcodeproj/project.pbxproj src/config/constants.js
          git commit -m "chore: bump version to ${{ steps.version.outputs.new_version }}"
          git tag -a "v${{ steps.version.outputs.new_version }}" -m "Release v${{ steps.version.outputs.new_version }}"
          git push origin ${{ github.ref_name }}
          git push origin "v${{ steps.version.outputs.new_version }}"

      - name: Auto back-merge (main only)
        if: github.ref_name == 'main'
        run: |
          git fetch origin
          git checkout beta
          git merge --no-ff origin/main -m "chore: back-merge main into beta"
          git push origin beta
          
          git checkout dev
          git merge --no-ff origin/beta -m "chore: back-merge beta into dev"
          git push origin dev

      - name: Summary
        run: |
          echo "✅ Version bumped to ${{ steps.version.outputs.new_version }}" >> $GITHUB_STEP_SUMMARY
          echo "📦 Tag: v${{ steps.version.outputs.new_version }}" >> $GITHUB_STEP_SUMMARY
          echo "🔀 Branch: ${{ github.ref_name }}" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "### Files updated:" >> $GITHUB_STEP_SUMMARY
          echo "- package.json" >> $GITHUB_STEP_SUMMARY
          echo "- manifest/chrome.json" >> $GITHUB_STEP_SUMMARY
          echo "- manifest/firefox.json" >> $GITHUB_STEP_SUMMARY
          echo "- safari/Mue Extension/Resources/manifest.json" >> $GITHUB_STEP_SUMMARY
          echo "- safari/Mue.xcodeproj/project.pbxproj" >> $GITHUB_STEP_SUMMARY
          echo "- src/config/constants.js" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          if [ "${{ github.ref_name }}" = "main" ]; then
            echo "### 🔄 Auto back-merge:" >> $GITHUB_STEP_SUMMARY
            echo "- main → beta ✅" >> $GITHUB_STEP_SUMMARY
            echo "- beta → dev ✅" >> $GITHUB_STEP_SUMMARY
          fi