name: Benchmark

on:
  issue_comment:
    types: [created]

jobs:
  benchmark:
    if: ${{ github.repository_owner == 'withastro' && github.event.issue.pull_request && startsWith(github.event.comment.body, '!bench') }}
    runs-on: ubuntu-latest
    permissions:
      contents: read
    outputs:
      PR-BENCH-14: ${{ steps.benchmark-pr.outputs.BENCH_RESULT14 }}
      PR-BENCH-16: ${{ steps.benchmark-pr.outputs.BENCH_RESULT16 }}
      MAIN-BENCH-14: ${{ steps.benchmark-main.outputs.BENCH_RESULT14 }}
      MAIN-BENCH-16: ${{ steps.benchmark-main.outputs.BENCH_RESULT16 }}
    strategy:
      matrix:
        node-version: [14, 16]
    steps:
      - uses: actions/checkout@v3
        with:
          persist-credentials: false
          ref: ${{github.event.pull_request.head.sha}}
          repository: ${{github.event.pull_request.head.repo.full_name}}

      - name: Setup PNPM
        uses: pnpm/action-setup@v2.2.1

      - name: Setup Node
        uses: actions/setup-node@v3
        with:
          node-version: ${{ matrix.node-version }}
          cache: 'pnpm'

      - name: Install dependencies
        run: pnpm install

      - name: Run benchmark
        id: benchmark-pr
        run: |
          pnpm run --silent benchmark > ./bench-result.md
          result=$(awk '/requests in/' ./bench-result.md)
          echo "::set-output name=BENCH_RESULT${{matrix.node-version}}::$result"

      # main benchmark
      - uses: actions/checkout@v3
        with:
          persist-credentials: false
          ref: 'main'

      - name: Install
        run: |
          pnpm install

      - name: Run benchmark
        id: benchmark-main
        run: |
          pnpm run --silent benchmark > ./bench-result.md
          result=$(awk '/requests in/' ./bench-result.md)
          echo "::set-output name=BENCH_RESULT${{matrix.node-version}}::$result"

  output-benchmark:
    if: ${{ github.repository_owner == 'withastro' && github.event.issue.pull_request && startsWith(github.event.comment.body, '!bench') }}
    needs: [benchmark]
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write
    steps:
      - name: Comment PR
        uses: thollander/actions-comment-pull-request@v1
        with:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          message: |
            **Node**: 14
            **PR**: ${{ needs.benchmark.outputs.PR-BENCH-14 }}
            **MAIN**: ${{ needs.benchmark.outputs.MAIN-BENCH-14 }}
            
            ---
            
            **Node**: 16
            **PR**: ${{ needs.benchmark.outputs.PR-BENCH-16 }}
            **MAIN**: ${{ needs.benchmark.outputs.MAIN-BENCH-16 }}