name: PR validity

on:
  pull_request:
    types: [opened, synchronize, reopened, edited]

jobs:
  check_testing_header:
    runs-on: ubuntu-latest
    steps:
      - name: Check for `### Testing` section in PR
        id: check-testing
        continue-on-error: true
        run: |
          cat >/tmp/pr-summary.txt << "EndMarkerForPrSummary"
          ${{ github.event.pull_request.body }}
          EndMarkerForPrSummary

          python -c 'import sys; pr_summary = open("/tmp/pr-summary.txt", "rt").read(); sys.exit(0 if "### Testing" in pr_summary else 1)'

      - name: Check for PR starting instructions
        id: check-instructions
        continue-on-error: true
        run: |
          cat >/tmp/pr-summary.txt << "EndMarkerForPrSummary"
          ${{ github.event.pull_request.body }}
          EndMarkerForPrSummary

          python -c 'import sys; pr_summary = open("/tmp/pr-summary.txt", "rt").read(); sys.exit(1 if "Please replace this HTML comment" in pr_summary else 0)'

      # NOTE: comments disabled for now as separate permissions are required
      #       failing CI step may be sufficient to start (although it contains less information about why it failed)

      # - name: Add comment (missing instructions)
      #   if: steps.check-instructions.outcome == 'failure'
      #   uses: actions/github-script@v6
      #   with:
      #     github-token: ${{ secrets.GITHUB_TOKEN }}
      #     script: |
      #       github.rest.issues.createComment({
      #         issue_number: context.issue.number,
      #         owner: context.repo.owner,
      #         repo: context.repo.repo,
      #         body: 'Please make sure to delete starter instructions from your PR summary and replace them with a descriptive summary.'
      #       })

      - name: Fail if PR instructions were not deleted
        if: (steps.check-instructions.outcome == 'failure') && (github.event.pull_request.user.login != 'dependabot[bot]')
        run: |
          python -c 'import sys; print("Please remove the HTML comment blocks that include \"Please replace this HTML comment\" text."); sys.exit(1)'

      # - name: Add comment (missing testing)
      #   if: steps.check-testing.outcome == 'failure'
      #   uses: actions/github-script@v6
      #   with:
      #     github-token: ${{ secrets.GITHUB_TOKEN }}
      #     script: |
      #       github.rest.issues.createComment({
      #         issue_number: context.issue.number,
      #         owner: context.repo.owner,
      #         repo: context.repo.repo,
      #         body: 'Please add a `### Testing` section to your PR summary describing the testing performed. See https://github.com/project-chip/connectedhomeip/blob/master/CONTRIBUTING.md#pull-requests'
      #       })

      - name: Fail if `### Testing` section not in PR
        if: (steps.check-testing.outcome == 'failure') && (github.event.pull_request.user.login != 'dependabot[bot]')

        run: |
          python -c 'import sys; print("Testing section missing (test failed)"); sys.exit(1)'