pull_request_comment.yml

name: Comment on Pull Request

on:
  workflow_run:
    workflows: [Data Tests (Changed Files)]
    types:
      - completed

jobs:
  comment:
    name: Comment on pull request
    runs-on: ubuntu-latest
    if: github.event.workflow_run.event == 'pull_request' && github.event.workflow_run.conclusion == 'failure'
    strategy:
      fail-fast: false
      matrix:
        test: [duplicate_entries, file_format, missing_values, vote_breakdown_totals]

    steps:
      - name: Download artifacts
        uses: actions/download-artifact@v4
        with:
          github-token: ${{ github.token }}
          run-id: ${{ github.event.workflow_run.id }}

      - name: Read pull request number
        id: pull_request_number_reader
        uses: juliangruber/read-file-action@v1
        with:
          path: ./pull_request_number/pull_request_number.txt

      - name: Check for failures
        id: check_failures
        uses: andstor/file-existence-action@v3
        with:
          files: ./${{ matrix.test }}/${{ matrix.test }}.txt

      - name: Read failure logs
        if: steps.check_failures.outputs.files_exists == 'true'
        id: failure_reader
        uses: juliangruber/read-file-action@v1
        with:
          path: ./${{ matrix.test }}/${{ matrix.test }}.txt

      - name: Comment on pull request
        if: steps.check_failures.outputs.files_exists == 'true'
        uses: actions/github-script@v7
        with:
          script: |
            await github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: ${{ steps.pull_request_number_reader.outputs.content }},
              body: `Thank you for your contribution!  Our <code>${{ matrix.test }}</code> `+
                `test detected some potential issues in the files you added.\n\n`+
                `<pre><code>${{ steps.failure_reader.outputs.content }}</code></pre>`
            });