# =============================================================================
# Node.js CI Pipeline
# Runs: lint (eslint), type check (tsc), test (vitest), build
# =============================================================================

name: Node CI

on:
  push:
    branches: [main]
    paths:
      - "**.ts"
      - "**.tsx"
      - "**.js"
      - "**.jsx"
      - "package.json"
      - "pnpm-lock.yaml"
      - "tsconfig.json"
      - ".github/workflows/ci-node.yaml"
  pull_request:
    branches: [main]
    paths:
      - "**.ts"
      - "**.tsx"
      - "**.js"
      - "**.jsx"
      - "package.json"
      - "pnpm-lock.yaml"
      - "tsconfig.json"
      - ".github/workflows/ci-node.yaml"

permissions:
  contents: read

env:
  NODE_VERSION: "22"

jobs:
  # ---------------------------------------------------------------------------
  # Install dependencies (shared across jobs via cache)
  # ---------------------------------------------------------------------------
  install:
    name: Install
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - uses: actions/checkout@v4

      - uses: pnpm/action-setup@v4
        with:
          version: latest

      - uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: "pnpm"

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

  # ---------------------------------------------------------------------------
  # Lint with ESLint
  # ---------------------------------------------------------------------------
  lint:
    name: Lint
    needs: install
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - uses: actions/checkout@v4

      - uses: pnpm/action-setup@v4
        with:
          version: latest

      - uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: "pnpm"

      - run: pnpm install --frozen-lockfile
      - run: pnpm lint

  # ---------------------------------------------------------------------------
  # Type check with TypeScript compiler
  # ---------------------------------------------------------------------------
  type-check:
    name: Type Check
    needs: install
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - uses: actions/checkout@v4

      - uses: pnpm/action-setup@v4
        with:
          version: latest

      - uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: "pnpm"

      - run: pnpm install --frozen-lockfile
      - run: pnpm tsc --noEmit

  # ---------------------------------------------------------------------------
  # Test with Vitest
  # ---------------------------------------------------------------------------
  test:
    name: Test
    needs: install
    runs-on: ubuntu-latest
    timeout-minutes: 15
    steps:
      - uses: actions/checkout@v4

      - uses: pnpm/action-setup@v4
        with:
          version: latest

      - uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: "pnpm"

      - run: pnpm install --frozen-lockfile

      - name: Run tests with coverage
        run: pnpm vitest run --coverage --reporter=junit --outputFile=junit.xml

      - name: Upload coverage report
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: coverage-report
          path: coverage/
          retention-days: 7

      - name: Upload test results
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: test-results
          path: junit.xml
          retention-days: 7

  # ---------------------------------------------------------------------------
  # Build
  # ---------------------------------------------------------------------------
  build:
    name: Build
    needs: [lint, type-check, test]
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
      - uses: actions/checkout@v4

      - uses: pnpm/action-setup@v4
        with:
          version: latest

      - uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: "pnpm"

      - run: pnpm install --frozen-lockfile
      - run: pnpm build

      - name: Upload build artifacts
        uses: actions/upload-artifact@v4
        with:
          name: build-output
          path: dist/
          retention-days: 7