name: New Authors Report

on:
  workflow_run:
    workflows: [New Authors Check]
    types: [completed]

jobs:
  comment:
    runs-on: ubuntu-latest
    steps:
      - run: echo "Author check is complete"

      - name: Download artifact new authors
        uses: actions/github-script@v6
        with:
          script: |
            let allArtifacts = await github.rest.actions.listWorkflowRunArtifacts({
               owner: context.repo.owner,
               repo: context.repo.repo,
               run_id: context.payload.workflow_run.id,
            });
            let matchArtifact = allArtifacts.data.artifacts.filter((artifact) => {
              return artifact.name == "new-authors";
            })[0];
            let download = await github.rest.actions.downloadArtifact({
               owner: context.repo.owner,
               repo: context.repo.repo,
               artifact_id: matchArtifact.id,
               archive_format: 'zip',
            });
            let fs = require('fs');
            fs.writeFileSync(`${process.env.GITHUB_WORKSPACE}/new-authors.zip`, Buffer.from(download.data));
      - run: unzip new-authors.zip
      - run: |
          if test -s new-authors.txt; then
            echo new_authors=yes >> $GITHUB_ENV
          fi
      - name: Comment on PR
        if: ${{ env.new_authors == 'yes' }}
        uses: actions/github-script@v6
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            let fs = require('fs');
            let issue_number = Number(fs.readFileSync('./pr-number.txt'));
            let new_authors = String(fs.readFileSync('./new-authors.txt'));
            let msg = 'NOTE: This PR may contain new authors:\n\n```\n' + new_authors + '```';
            await github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: issue_number,
              body: msg
            });
