name: Prepare release
on:
  workflow_dispatch:
    inputs:
      newVersion:
        description: "Version number for the new release"
        required: true
        default: X.Y.Z
jobs:
  main:
    runs-on: ubuntu-latest
    steps:
      - name: Validate version number
        env:
          NEW_VERSION: "${{ inputs.newVersion }}"
        run: |
          if ! [[ "$NEW_VERSION" =~ [0-9]+\.[0-9]+\.[0-9]+ ]]; then
            echo "Invalid version number"
            exit 1
          fi

      # When you use the default github.token to make changes in the repository,
      # it does not trigger further GitHub pipelines. We want to trigger CI for
      # the pull request, so we have to use an app token.
      - name: Generate authentication token
        id: gen-token
        uses: actions/create-github-app-token@v3
        with:
          client-id: "${{ secrets.CVAT_BOT_CLIENT_ID }}"
          private-key: "${{ secrets.CVAT_BOT_PRIVATE_KEY }}"

      - name: Install dependencies
        run:
          sudo apt-get install -y pandoc

      - uses: actions/checkout@v7

      - name: Verify that the release is new
        run: |
          if git ls-remote --exit-code origin refs/tags/v${{ inputs.newVersion }} > /dev/null; then
            echo "Release v${{ inputs.newVersion }} already exists"
            exit 1
          fi

      - name: Create release branch
        run:
          git checkout -b "release-${{ inputs.newVersion }}"

      - name: Collect changelog
        run: |
          if ls changelog.d/*.md >/dev/null 2>&1; then
            pipx run scriv collect --version='${{ inputs.newVersion }}'
          fi

      - name: Set the new version
        run:
          ./dev/update_version.py --set="${{ inputs.newVersion }}"

      - name: Commit release preparation changes
        run: |
          git -c user.name='cvat-bot[bot]' -c user.email='147643061+cvat-bot[bot]@users.noreply.github.com' \
            commit -a -m "Prepare release v${{ inputs.newVersion }}"

      - name: Push release branch
        run:
          git push -u origin "release-${{ inputs.newVersion }}"

      - name: Create release pull request
        env:
          GH_TOKEN: "${{ steps.gen-token.outputs.token }}"
        run: |
          ./dev/gh_release_notes.sh \
            | gh pr create \
              --base=master \
              --title="Release v${{ inputs.newVersion }}" \
              --body-file=-