name: "Pull Request auto-label"

on:
  # So that PRs touching the same files as the push are updated
  push:
    branches: [ master ]
  # So that the `dirtyLabel` is removed if conflicts are resolve
  # We recommend `pull_request_target` so that github secrets are available.
  # In `pull_request` we wouldn't be able to change labels of fork PRs
  pull_request_target:
    types: [ opened, synchronize ]

concurrency:
  group: ${{ format('pr-label-{0}', github.event.pull_request.number || github.sha) }}
  cancel-in-progress: true

jobs:
  conflicts:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      pull-requests: write
    steps:
      - name: Update PRs with conflict labels
        uses: eps1lon/actions-label-merge-conflict@releases/2.x
        with:
          dirtyLabel: "conflicts"
          #removeOnDirtyLabel: "PR: ready to ship"
          repoToken: "${{ secrets.GITHUB_TOKEN }}"
          commentOnDirty: "This pull request has conflicts with the base branch, please resolve those so we can evaluate the pull request."
          commentOnClean: "Conflicts have been resolved! 🎉 A maintainer will review the pull request shortly."

  size:
    if: ${{ github.event_name == 'pull_request_target' }}
    permissions:
      issues: write
      pull-requests: write
    runs-on: ubuntu-latest
    steps:
      - uses: codelytv/pr-size-labeler@v1
        with:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          xs_label: 'size/xs'
          xs_max_size: 2
          s_label: 'size/s'
          s_max_size: 10
          m_label: 'size/m'
          m_max_size: 50
          l_label: 'size/l'
          l_max_size: 200
          xl_label: 'size/xl'
          message_if_xl: >
            This PR exceeds the recommended size of 200 lines.
            Please make sure you are NOT addressing multiple issues with one PR.
            Note this PR might be rejected due to its size