name: pre-commit

on:
  pull_request:
    types: [opened, synchronize, reopened, labeled]
  push:
    branches: [main]

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: ${{ github.event_name == 'pull_request' }}

permissions:
  contents: read
  pull-requests: read

jobs:
  pre-run-check:
    if: >-
      github.event_name == 'pull_request' &&
      (github.event.action != 'labeled' ||
       github.event.label.name == 'ready' ||
       github.event.label.name == 'verified')
    runs-on: ubuntu-latest
    steps:
    - name: Check PR label and author merge count
      uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
      with:
        script: |
          const { data: pr } = await github.rest.pulls.get({
            ...context.repo,
            pull_number: context.payload.pull_request.number,
          });

          const hasReadyLabel = pr.labels.some(l => l.name === 'ready');
          const hasVerifiedLabel = pr.labels.some(l => l.name === 'verified');

          const { data: mergedPRs } = await github.rest.search.issuesAndPullRequests({
            q: `repo:${context.repo.owner}/${context.repo.repo} is:pr is:merged author:${pr.user.login}`,
            per_page: 4,
          });
          const mergedCount = mergedPRs.total_count;

          if (hasReadyLabel || hasVerifiedLabel || mergedCount >= 4) {
            core.info(`Check passed: verified label=${hasVerifiedLabel}, ready label=${hasReadyLabel}, 4+ merged PRs=${mergedCount >= 4}`);
          } else {
            core.setFailed(`PR must have the 'verified' or 'ready' (which also triggers tests) label or the author must have at least 4 merged PRs (found ${mergedCount}).`);
          }

  pre-commit:
    needs: pre-run-check
    if: >-
      always() &&
      (github.event.action != 'labeled' ||
       github.event.label.name == 'ready' ||
       github.event.label.name == 'verified') &&
      (needs.pre-run-check.result == 'success' || needs.pre-run-check.result == 'skipped')
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
    - uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
      with:
        python-version: "3.12"
    - run: echo "::add-matcher::.github/workflows/matchers/actionlint.json"
    - run: echo "::add-matcher::.github/workflows/matchers/markdownlint.json"
    - run: echo "::add-matcher::.github/workflows/matchers/mypy.json"
    - uses: pre-commit/action@2c7b3805fd2a0fd8c1884dcaebf91fc102a13ecd # v3.0.1
      with:
        extra_args: --all-files --hook-stage manual
