name: Frontend bundle visualizer

on:
  pull_request:
    types:
      - opened
      - synchronize
      - reopened
      - ready_for_review
    paths:
      - packages/frontend/**
      - packages/frontend-shared/**
      - packages/frontend-builder/**
      - packages/i18n/**
      - packages/icons-subsetter/**
      - packages/misskey-js/**
      - packages/misskey-reversi/**
      - packages/misskey-bubble-game/**
      - package.json
      - pnpm-lock.yaml
      - pnpm-workspace.yaml
      - .node-version
      - .github/scripts/frontend-bundle-visualizer-report.mjs
      - .github/workflows/frontend-bundle-visualizer.yml
      - .github/workflows/frontend-bundle-visualizer-comment.yml

permissions:
  contents: read
  pull-requests: read

concurrency:
  group: frontend-bundle-visualizer-${{ github.event.pull_request.number }}
  cancel-in-progress: true

jobs:
  visualize:
    name: Build frontend bundle visualizer
    runs-on: ubuntu-latest
    steps:
      - name: Checkout pull request
        uses: actions/checkout@v6.0.2
        with:
          repository: ${{ github.event.pull_request.head.repo.full_name }}
          ref: ${{ github.event.pull_request.head.sha }}
          submodules: true

      - name: Setup pnpm
        uses: pnpm/action-setup@v6.0.3

      - name: Setup Node.js
        uses: actions/setup-node@v6.4.0
        with:
          node-version-file: .node-version
          cache: pnpm

      - name: Install dependencies
        run: pnpm i --frozen-lockfile

      - name: Build frontend dependencies
        run: pnpm --filter "frontend^..." run build

      - name: Prepare visualizer output
        run: mkdir -p "$RUNNER_TEMP/frontend-bundle-visualizer"

      - name: Build frontend visualizer
        env:
          FRONTEND_BUNDLE_VISUALIZER: 'true'
          FRONTEND_BUNDLE_VISUALIZER_TEMPLATE: raw-data
          FRONTEND_BUNDLE_VISUALIZER_FILE: ${{ runner.temp }}/frontend-bundle-visualizer/stats.json
        run: pnpm --filter frontend run build

      - name: Generate visualizer report
        run: node .github/scripts/frontend-bundle-visualizer-report.mjs "$RUNNER_TEMP/frontend-bundle-visualizer/stats.json" "$RUNNER_TEMP/frontend-bundle-visualizer/report.md"

      - name: Check visualizer report
        run: |
          test -s "$RUNNER_TEMP/frontend-bundle-visualizer/stats.json"
          test -s "$RUNNER_TEMP/frontend-bundle-visualizer/report.md"
          cat "$RUNNER_TEMP/frontend-bundle-visualizer/report.md" >> "$GITHUB_STEP_SUMMARY"

      - name: Write report metadata
        run: |
          printf '%s\n' "${{ github.event.pull_request.number }}" > "$RUNNER_TEMP/frontend-bundle-visualizer/pr-number.txt"
          printf '%s\n' "${{ github.event.pull_request.head.sha }}" > "$RUNNER_TEMP/frontend-bundle-visualizer/head-sha.txt"
          printf '%s\n' "${{ github.event.pull_request.html_url }}" > "$RUNNER_TEMP/frontend-bundle-visualizer/pr-url.txt"

      - name: Upload visualizer report
        uses: actions/upload-artifact@v7
        with:
          name: frontend-bundle-visualizer-report
          path: ${{ runner.temp }}/frontend-bundle-visualizer/
          if-no-files-found: error
          retention-days: 7