# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

name: Release

# Releases are NOT automatic. A release manager pushes a git tag manually:
#   * v1.7.0-rc1  -> publishes a GitHub *pre-release* only (artifact for the Apache vote)
#   * v1.7.0      -> publishes a GitHub *release* and pushes the package to PyPI
on:
  push:
    tags:
      - 'v*'

permissions:
  contents: write

jobs:
  release:
    name: Manual Tag Release
    runs-on: ubuntu-latest

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

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.12'

      - name: Resolve Tag
        id: tag
        run: |
          set -euo pipefail
          TAG="${GITHUB_REF_NAME}"
          VERSION="${TAG#v}"

          if [[ "$VERSION" =~ ^([0-9]+\.[0-9]+\.[0-9]+)-[Rr][Cc]([0-9]+)$ ]]; then
            BASE_VERSION="${BASH_REMATCH[1]}"
            RC_NUMBER="${BASH_REMATCH[2]}"
            IS_RC=true
          elif [[ "$VERSION" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
            BASE_VERSION="$VERSION"
            RC_NUMBER=""
            IS_RC=false
          else
            echo "::error::Tag '$TAG' is not a supported release tag (expected vX.Y.Z or vX.Y.Z-rcN)."
            exit 1
          fi

          # The source release must describe its own version, so pyproject.toml
          # has to be bumped and committed before the tag is pushed.
          PROJECT_VERSION="$(python -c "import tomllib; print(tomllib.load(open('pyproject.toml','rb'))['project']['version'])")"
          if [[ "$PROJECT_VERSION" != "$BASE_VERSION" ]]; then
            echo "::error::pyproject.toml version ($PROJECT_VERSION) does not match tag version ($BASE_VERSION). Bump pyproject.toml before tagging."
            exit 1
          fi

          # Apache source release artifact naming. The RC number is intentionally
          # NOT part of the file name, so the bits that get voted on are byte
          # identical to the bits published for the final release.
          ARTIFACT="apache-casbin-django-orm-adapter-${BASE_VERSION}-incubating-src.tar.gz"

          {
            echo "tag=$TAG"
            echo "base_version=$BASE_VERSION"
            echo "rc_number=$RC_NUMBER"
            echo "is_rc=$IS_RC"
            echo "artifact=$ARTIFACT"
          } >> "$GITHUB_OUTPUT"

      - name: Build Apache Source Package
        run: |
          set -euo pipefail
          ARTIFACT="${{ steps.tag.outputs.artifact }}"
          # The tarball unpacks into a single top level directory named after the
          # artifact, and contains sources only - no binaries, no VCS metadata.
          git archive --format=tar.gz \
            --prefix="${ARTIFACT%.tar.gz}/" \
            -o "$ARTIFACT" HEAD
          sha512sum "$ARTIFACT" > "$ARTIFACT.sha512"

      - name: Publish GitHub Pre-Release
        if: steps.tag.outputs.is_rc == 'true'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          set -euo pipefail
          ARTIFACT="${{ steps.tag.outputs.artifact }}"
          gh release create "${{ steps.tag.outputs.tag }}" \
            --title "v${{ steps.tag.outputs.base_version }}-rc${{ steps.tag.outputs.rc_number }}" \
            --prerelease \
            --notes "Release candidate ${{ steps.tag.outputs.rc_number }} for version ${{ steps.tag.outputs.base_version }}. This is not an official release; it is the source package for the Apache vote. Release managers should download \`$ARTIFACT\`, sign it locally, and use it for the vote." \
            "$ARTIFACT" "$ARTIFACT.sha512"

      - name: Publish GitHub Release
        if: steps.tag.outputs.is_rc == 'false'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          set -euo pipefail
          ARTIFACT="${{ steps.tag.outputs.artifact }}"
          gh release create "${{ steps.tag.outputs.tag }}" \
            --title "v${{ steps.tag.outputs.base_version }}" \
            --notes "Version ${{ steps.tag.outputs.base_version }}. The official source package is \`$ARTIFACT\`." \
            "$ARTIFACT" "$ARTIFACT.sha512"

      - name: Publish to PyPI
        if: steps.tag.outputs.is_rc == 'false'
        env:
          TWINE_USERNAME: __token__
          TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN }}
        run: |
          set -euo pipefail
          python -m pip install --upgrade build twine
          python -m build
          python -m twine upload dist/*