---
# vi: ts=2 sw=2 et:
# SPDX-License-Identifier: LGPL-2.1-or-later
#
name: "Pull Request Labeler"

on:
  pull_request_target:
    types: [opened, synchronize, reopened, ready_for_review, closed]
  issue_comment:
    types: [created]

permissions:
  contents: read

jobs:
  triage:
    if: github.repository == 'systemd/systemd'
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write

    steps:
    - name: Label PR based on policy in labeler.yml
      uses: actions/labeler@ba790c862c380240c6d5e7427be5ace9a05c754b
      if: github.event_name == 'pull_request_target' && github.event.action != 'closed'
      with:
        repo-token: "${{ secrets.GITHUB_TOKEN }}"
        configuration-path: .github/labeler.yml
        sync-labels: "" # This is a workaround for issue 18671

    - name: Set or remove labels based on systemd development workflow
      uses: actions/github-script@d7906e4ad0b1822421a7e6a35d5ca353c962f410
      if: github.event_name == 'pull_request_target' && github.event.action != 'closed' && !github.event.pull_request.draft
      with:
        script: |
          response = await github.rest.issues.listLabelsOnIssue({
            issue_number: context.issue.number,
            owner: context.repo.owner,
            repo: context.repo.repo,
          });

          good_to_merge = [
            "good-to-merge/waiting-for-ci 👍",
            "good-to-merge/after-next-release",
            "good-to-merge/with-minor-suggestions",
            "good-to-merge/waiting-for-reporter-feedback 👍",
          ];

          if (response.data.every(l => !good_to_merge.includes(l.name))) {
            await github.rest.issues.addLabels({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              labels: ["please-review"]
            });
          }

          for (const label of ["reviewed/needs-rework 🔨",
                               "ci-fails/needs-rework 🔥",
                               "ci-failure-appears-unrelated",
                               "needs-rebase"]) {
            try {
              await github.rest.issues.removeLabel({
                issue_number: context.issue.number,
                owner: context.repo.owner,
                repo: context.repo.repo,
                name: label,
              });
            } catch (err) {
              if (err.status != 404) {
                throw err;
              }
            }
          }

    - name: Add please-review label on command in issue comment
      uses: actions/github-script@d7906e4ad0b1822421a7e6a35d5ca353c962f410
      if: github.event_name == 'issue_comment' && github.event.issue.pull_request && startsWith(github.event.comment.body, '/please-review')
      with:
        script: |
          await github.rest.issues.addLabels({
            issue_number: context.issue.number,
            owner: context.repo.owner,
            repo: context.repo.repo,
            labels: ["please-review"]
          })

    - name: Remove specific labels when PR is closed or merged
      uses: actions/github-script@d7906e4ad0b1822421a7e6a35d5ca353c962f410
      if: github.event_name == 'pull_request_target' && github.event.action == 'closed'
      with:
        script: |
          for (const label of ["please-review",
                               "reviewed/needs-rework 🔨",
                               "ci-fails/needs-rework 🔥",
                               "needs-rebase",
                               "good-to-merge/waiting-for-ci 👍",
                               "good-to-merge/after-next-release",
                               "good-to-merge/with-minor-suggestions",
                               "good-to-merge/waiting-for-reporter-feedback 👍",
                               "needs-discussion 🤔",
                               "needs-reporter-feedback ❓",
                               "dont-merge 💣",
                               "squash-on-merge",
                               "quick-review 🏃‍♂️"]) {
            try {
              await github.rest.issues.removeLabel({
                issue_number: context.issue.number,
                owner: context.repo.owner,
                repo: context.repo.repo,
                name: label,
              });
            } catch (err) {
              if (err.status != 404) {
                throw err;
              }
            }
          }