comment.yml

name: Post a comment
on:
  workflow_run:
    workflows:
      - Check for Duplicated Code
      - Check for linter warnings / exceptions
    types:
      - completed

permissions:
  contents: read
  pull-requests: write
  issues: write

jobs:
  comment:
    runs-on: ubuntu-latest
    steps:
      - name: 'Download artifact'
        id: download
        uses: actions/github-script@v8
        with:
          result-encoding: string
          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 == "comment"
            })[0];
            if (matchArtifact == null) {
              return "false"
            }
            let download = await github.rest.actions.downloadArtifact({
               owner: context.repo.owner,
               repo: context.repo.repo,
               artifact_id: matchArtifact.id,
               archive_format: 'zip',
            });
            const fs = require('fs');
            const path = require('path');
            const temp = '${{ runner.temp }}/artifacts';
            if (!fs.existsSync(temp)){
              fs.mkdirSync(temp);
            }
            fs.writeFileSync(path.join(temp, 'comment.zip'), Buffer.from(download.data));
            return "true";

      - name: 'Unzip artifact'
        if: ${{ steps.download.outputs.result == 'true' }}
        run: unzip "${{ runner.temp }}/artifacts/comment.zip" -d "${{ runner.temp }}/artifacts"

      - name: 'Comment on PR'
        if: ${{ steps.download.outputs.result == 'true' }}
        uses: actions/github-script@v8
        with:
          script: |
            const fs = require('fs');
            const path = require('path');
            const temp = '${{ runner.temp }}/artifacts';
            const {issue_number, body} = JSON.parse(fs.readFileSync(path.join(temp, 'comment.json'))); 
            await github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number,
              body
            });