name: Benchmarks
on:
  workflow_dispatch:
    inputs:
      update-baseline:
        description: 'Update baseline with current results instead of comparing'
        type: boolean
        default: false
  pull_request:
    branches: [main, 'release/v*']

jobs:
  benchmark:
    name: Performance Benchmarks (${{ matrix.os }})
    timeout-minutes: 60
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-24.04, macos-latest, windows-latest]
        include:
          - os: ubuntu-24.04
            os-name: ubuntu
          - os: macos-latest
            os-name: macos
          - os: windows-latest
            os-name: windows
    permissions:
      contents: write
      pull-requests: write
    steps:
      - uses: actions/checkout@v6

      - name: Install System Dependencies (Ubuntu)
        if: matrix.os-name == 'ubuntu'
        run: |
          sudo apt-get update
          sudo apt-get --no-install-recommends install -y \
            libglib2.0-0 libnss3 libdbus-1-3 libatk1.0-0 libatk-bridge2.0-0 libcups2 libgtk-3-0 libasound2t64 \
            xvfb

      - name: Setup Node Dependencies
        uses: ./.github/actions/common/setup-node-deps

      - name: Configure Chrome Sandbox
        if: matrix.os-name == 'ubuntu'
        run: |
          sudo chown root node_modules/electron/dist/chrome-sandbox
          sudo chmod 4755 node_modules/electron/dist/chrome-sandbox

      - name: Run Benchmark Tests
        uses: ./.github/actions/tests/run-benchmark-tests
        with:
          os: ${{ matrix.os-name }}
          update-baseline: ${{ github.event.inputs.update-baseline || 'false' }}

      - name: Upload Benchmark Results
        uses: actions/upload-artifact@v6
        if: ${{ !cancelled() }}
        with:
          name: benchmark-results-${{ matrix.os-name }}
          path: |
            tests/benchmarks/results/
            benchmark-report/
          retention-days: 30

      - name: Commit Updated Baseline
        if: github.event.inputs.update-baseline == 'true'
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add tests/benchmarks/mounting/baseline.${{ matrix.os-name }}.json
          git diff --staged --quiet || git commit -m "chore: update ${{ matrix.os-name }} benchmark baseline" && git push

      - name: Comment Benchmark Results on PR
        if: github.event_name == 'pull_request' && !cancelled()
        continue-on-error: true
        uses: actions/github-script@v7
        with:
          script: |
            const run = require('./tests/benchmarks/utils/pr-comment.js');
            await run({
              github,
              context,
              resultsPath: 'tests/benchmarks/results/mounting.json',
              baselinePath: 'tests/benchmarks/mounting/baseline.${{ matrix.os-name }}.json',
              title: 'Benchmark Results — Collection Mount (${{ matrix.os-name }})'
            });