name: 'PR Contributor Agreement'

on:
  pull_request:
    types:
      - 'opened'
      - 'edited'
      - 'reopened'
      - 'synchronize'

permissions:
  contents: 'read'
  pull-requests: 'read'

jobs:
  verify:
    if: github.repository == 'keras-team/keras'
    runs-on: 'ubuntu-latest'
    steps:
      - name: 'Verify contributor agreement'
        uses: 'actions/github-script@v9'
        with:
          github-token: '${{ secrets.GITHUB_TOKEN }}'
          script: |
            const { data: pr } = await github.rest.pulls.get({
              owner: context.repo.owner,
              repo: context.repo.repo,
              pull_number: context.payload.pull_request.number,
            });

            const body = pr.body || '';

            const requiredTerms = [
              'I am a human, and not a bot.',
              'I will be responsible for responding to review comments in a timely manner.',
              'I will work with the maintainers to push this PR forward until submission.'
            ];

            const unchecked = [];
            for (const term of requiredTerms) {
              // Check that the checkbox is checked: [x] or [X]
              const checkedPattern = new RegExp(`-\\s*\\[\\s*[xX]\\s*\\]\\s*${term.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')}`);
              if (!checkedPattern.test(body)) {
                unchecked.push(term);
              }
            }

            if (unchecked.length > 0) {
              core.setFailed(
                `The following contributor agreement terms have not been accepted:\n` +
                unchecked.map(t => `  - ${t}`).join('\n') +
                `\n\nPlease check all boxes in the Contributor Agreement section of the PR description.`
              );
            } else {
              core.info('All contributor agreement terms accepted.');
            }