name: Create Release

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

jobs:
  release:
    runs-on: ubuntu-latest

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

    - name: Get version from tag
      id: get_version
      run: |
        VERSION=${GITHUB_REF#refs/tags/v}
        echo "version=$VERSION" >> $GITHUB_OUTPUT
        echo "Version: $VERSION"

    - name: Generate changelog
      id: changelog
      run: |
        # Get previous tag
        PREVIOUS_TAG=$(git describe --tags --abbrev=0 HEAD~1 2>/dev/null || echo "")
        if [ -z "$PREVIOUS_TAG" ]; then
          PREVIOUS_TAG=$(git rev-list --max-parents=0 HEAD)
        fi

        echo "Generating changelog from $PREVIOUS_TAG to ${GITHUB_REF#refs/tags/}"

        # Generate changelog
        CHANGELOG=$(git log --pretty=format:"- %s (%h)" $PREVIOUS_TAG..HEAD | head -20)
        if [ -z "$CHANGELOG" ]; then
          CHANGELOG="No changes since last release"
        fi

        # Escape newlines for GitHub output
        CHANGELOG="${CHANGELOG//'%'/'%25'}"
        CHANGELOG="${CHANGELOG//$'\n'/'%0A'}"
        CHANGELOG="${CHANGELOG//$'\r'/'%0D'}"

        echo "changelog<<EOF" >> $GITHUB_OUTPUT
        echo "$CHANGELOG" >> $GITHUB_OUTPUT
        echo "EOF" >> $GITHUB_OUTPUT

    - name: Create GitHub release
      uses: softprops/action-gh-release@v2
      with:
        name: "Release ${{ steps.get_version.outputs.version }}"
        body: |
          ## What's Changed

          ${{ steps.changelog.outputs.changelog }}

          ## Downloads

          - Backend binary: Download from CI artifacts
          - Web app: Automatically deployed
          - Mobile app: Download APK from CI artifacts
        draft: false
        prerelease: false
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

  update-version:
    runs-on: ubuntu-latest
    needs: release

    steps:
    - name: Checkout code
      uses: actions/checkout@v4

    - name: Update version in pubspec files
      run: |
        VERSION=${GITHUB_REF#refs/tags/v}
        echo "Updating version to $VERSION"

        # Update main app version
        sed -i "s/version: .*/version: $VERSION+$(date +%s)/" mnemo_cards/pubspec.yaml

        # Update backend version
        sed -i "s/version: .*/version: $VERSION+$(date +%s)/" mnemo_cards_backend/pubspec.yaml

        # Update web version
        sed -i "s/version: .*/version: $VERSION+$(date +%s)/" mnemo_cards_web_v2/pubspec.yaml

    - name: Commit version update
      run: |
        git config --local user.email "action@github.com"
        git config --local user.name "GitHub Action"
        git add -A
        git commit -m "chore: bump version to ${{ github.ref_name }}" || echo "No changes to commit"

    - name: Push version update
      run: |
        git push origin main || git push origin master