pr-description.yml

name: PR Auto-Check Comment

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

permissions:
  pull-requests: write
  contents: read

jobs:
  add-comment:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Get Changed Files
        id: changed-files
        run: |
          echo "files<<EOF" >> $GITHUB_OUTPUT
          git diff --name-only ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }} >> $GITHUB_OUTPUT
          echo "EOF" >> $GITHUB_OUTPUT

      - name: Setup Node.js
        uses: actions/setup-node@v3
        with:
          node-version: '18'

      - name: Install Prettier
        run: npm install -g prettier

      - name: Check Prettier
        id: prettier-check
        run: |
          if npx prettier --check . 2>/dev/null; then
            echo "prettier_status=✅ Passed" >> $GITHUB_OUTPUT
          else
            echo "prettier_status=❌ Failed" >> $GITHUB_OUTPUT
          fi

      - name: Add PR Comment
        uses: actions/github-script@v7
        with:
          script: |
            const changedFiles = `${{ steps.changed-files.outputs.files }}`;
            const prettierStatus = `${{ steps.prettier-check.outputs.prettier_status }}`;
            const timestamp = new Date().toISOString();

            const comment = `## 📋 PR Auto-Check\n\n### 📝 Files Changed\n\`\`\`\n${changedFiles || 'No files changed'}\n\`\`\`\n\n### ✨ Code Quality\n**Prettier Check:** ${prettierStatus}\n\n---\n*Auto-generated on ${timestamp}*`;

            await github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
              body: comment
            });