name: changelog

on:
  pull_request:

jobs:
  changelog:
    name: Generate changelog
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Generate changelog
        uses: orhun/git-cliff-action@v4
        with:
          config: cliff.toml
          args: --verbose
        env:
          OUTPUT: CHANGELOG.md
          GITHUB_REPO: ${{ github.repository }}

      - name: Extract branch name
        shell: bash
        run: echo "branch=${GITHUB_HEAD_REF:-${GITHUB_REF#refs/heads/}}" >> $GITHUB_OUTPUT
        id: extract_branch

      - name: Commit
        run: |
          git checkout ${{ steps.extract_branch.outputs.branch }}
          git config user.name 'github-actions[bot]'
          git config user.email 'github-actions[bot]@users.noreply.github.com'
          set +e
          git add CHANGELOG.md
          git commit -m "Update changelog"
          git push https://${{ secrets.GITHUB_TOKEN }}@github.com/${GITHUB_REPOSITORY}.git ${{ steps.extract_branch.outputs.branch }}