name: Pull Request Assigner

on:
  pull_request_target:
    types:
    - opened
    - synchronize
    - reopened
    - ready_for_review
    branches:
    - main
    - collab-*
    - v*-branch
  issues:
    types:
    - labeled

permissions:
  contents: read

jobs:
  assignment:
    name: Pull Request Assignment
    if: github.event.pull_request.draft == false
    runs-on: ubuntu-24.04
    permissions:
      pull-requests: write # to add assignees to pull requests
      issues: write        # to add assignees to issues

    steps:
    - name: Check out source code
      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2

    - name: Set up Python
      uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
      with:
        python-version: 3.12
        cache: pip
        cache-dependency-path: scripts/requirements-actions.txt

    - name: Install Python packages
      run: |
        pip install -r scripts/requirements-actions.txt --require-hashes

    - name: Run assignment script
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      run: |
        FLAGS="-v"
        FLAGS+=" -o ${{ github.event.repository.owner.login }}"
        FLAGS+=" -r ${{ github.event.repository.name }}"
        FLAGS+=" -M MAINTAINERS.yml"
        if [ "${{ github.event_name }}" = "pull_request_target" ]; then
            FLAGS+=" -P ${{ github.event.pull_request.number }}"
        elif [ "${{ github.event_name }}" = "issues" ]; then
            FLAGS+=" -I ${{ github.event.issue.number }}"
        elif [ "${{ github.event_name }}" = "schedule" ]; then
            FLAGS+=" --modules"
        else
          echo "Unknown event: ${{ github.event_name }}"
          exit 1
        fi

        python3 scripts/set_assignees.py $FLAGS