name: CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

permissions:
  contents: read

jobs:
  prettier-fix:
    name: Auto-fix formatting
    if: github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v6
        with:
          ref: ${{ github.head_ref }}
          token: ${{ github.token }}

      - uses: actions/setup-node@v6
        with:
          node-version: "22"
          cache: npm

      - run: npm ci

      - run: npm run prettier:fix

      - name: Commit formatting changes
        run: |
          git diff --quiet && exit 0
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add -A
          git commit -m "style: auto-fix prettier formatting"
          git push

  build:
    strategy:
      fail-fast: false
      matrix:
        include:
          - os: ubuntu-latest
            name: Linux x64
          - os: ubuntu-24.04-arm
            name: Linux ARM64
          - os: windows-latest
            name: Windows x64
          - os: windows-11-arm
            name: Windows ARM64
          - os: macos-latest
            name: macOS ARM64

    name: Build (${{ matrix.name }})
    runs-on: ${{ matrix.os }}

    steps:
      - uses: actions/checkout@v6

      - name: Verify no private URLs in package-lock.json
        shell: bash
        run: '! grep -E "\"resolved\": \"https?://" package-lock.json | grep -v registry.npmjs.org'

      - name: Verify example dependency versions
        shell: bash
        run: node scripts/check-versions.mjs

      - uses: actions/setup-node@v6
        with:
          node-version: "22"
          cache: npm

      - run: npm ci

      - run: npm run build

      - name: Validate TypeDoc links
        if: runner.os == 'Linux' && matrix.name == 'Linux x64'
        run: npm exec typedoc -- --treatValidationWarningsAsErrors --emit none

      - run: npm run examples:build

      - name: Verify generated schemas are up-to-date
        shell: bash
        run: |
          npm run generate:schemas
          git diff --exit-code src/generated/ || (echo "Generated schemas are out of date. Run 'npm run generate:schemas' and commit." && exit 1)

      - name: Verify synced snippets are up-to-date
        shell: bash
        run: |
          npm run sync:snippets
          git diff --exit-code src/ docs/ || (echo "Synced snippets are out of date. Run 'npm run sync:snippets' and commit." && exit 1)

      - run: npm test

      - run: npm run prettier

      - name: Build MCPB bundle (pdf-server)
        if: runner.os == 'Linux' && matrix.name == 'Linux x64'
        run: node build-mcpb.mjs
        working-directory: examples/pdf-server

      - name: Smoke-test MCPB bundle starts
        if: runner.os == 'Linux' && matrix.name == 'Linux x64'
        run: |
          unzip -q pdf-server.mcpb -d .mcpb-smoke
          node .mcpb-smoke/dist/index.js --stdio < /dev/null 2>&1 | tee /tmp/mcpb-smoke.log
          grep -q "Ready" /tmp/mcpb-smoke.log
        working-directory: examples/pdf-server

  dependency-isolation:
    name: Dependency isolation
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6

      - uses: actions/setup-node@v6
        with:
          node-version: "22"
          cache: npm

      - run: npm ci

      - run: npm run test:dependency-isolation

  e2e:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6

      - uses: oven-sh/setup-bun@v2
        with:
          bun-version: latest

      - uses: actions/setup-node@v6
        with:
          node-version: "22"
          cache: npm

      - uses: astral-sh/setup-uv@v7

      - run: npm ci

      # Headless runs without a channel use chromium-headless-shell, so the
      # full Chromium build (about 165 MB) would only be downloaded, never run.
      - name: Install Playwright browsers
        run: npx playwright install --with-deps --only-shell chromium

      - name: Run E2E tests
        run: npx playwright test --reporter=list

      - name: Upload test results
        uses: actions/upload-artifact@v6
        if: failure()
        with:
          name: test-results
          path: test-results/
          retention-days: 7

  # Test build in Windows WSL (Ubuntu)
  build-wsl:
    name: Build (Windows WSL)
    runs-on: windows-latest

    steps:
      - uses: actions/checkout@v6

      - uses: Vampire/setup-wsl@v6
        with:
          distribution: Ubuntu-24.04

      - name: Install Node.js in WSL
        shell: wsl-bash {0}
        run: |
          sudo apt-get update
          curl -fsSL https://deb.nodesource.com/setup_22.x | sudo -E bash -
          sudo apt-get install -y nodejs

      # The checkout lives on the Windows drive, which WSL reaches over 9P;
      # writing node_modules there is what makes this job slow (npm ci alone
      # took about 3 minutes). Copy the tree onto the distro's ext4 filesystem
      # first, as Microsoft's WSL guidance recommends for anything I/O heavy.
      - name: Build and test in WSL
        shell: wsl-bash {0}
        run: |
          cp -r "$(pwd)" ~/ext-apps && cd ~/ext-apps
          npm ci
          npm run build
          npm run examples:build
          npm test
          npm run prettier

  # Test that the package can be installed from git (triggers prepare script)
  test-git-install:
    strategy:
      fail-fast: false
      matrix:
        include:
          - os: ubuntu-latest
            name: Linux x64
          - os: ubuntu-24.04-arm
            name: Linux ARM64
          - os: windows-latest
            name: Windows x64
          - os: windows-11-arm
            name: Windows ARM64
          - os: macos-latest
            name: macOS ARM64

    name: Test git install (${{ matrix.name }})
    runs-on: ${{ matrix.os }}

    steps:
      - uses: actions/setup-node@v6
        with:
          node-version: "22"

      - name: Create test project and install from git
        shell: bash
        env:
          HEAD_REPO: ${{ github.event.pull_request.head.repo.full_name || github.repository }}
          HEAD_REF: ${{ github.head_ref || github.ref_name }}
        run: |
          mkdir test-project
          cd test-project
          npm init -y
          # Install from the PR branch (use head repo for fork PRs)
          npm install "git+https://github.com/${HEAD_REPO}#${HEAD_REF}"
          # Verify the package is usable (ESM import)
          node --input-type=module -e "import { App } from '@modelcontextprotocol/ext-apps'; console.log('Import successful:', typeof App)"