name: PR Checks

on:
  pull_request:
    branches: [main]

concurrency:
  group: pr-checks-${{ github.ref }}
  cancel-in-progress: true

jobs:
  lint:
    name: Lint
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install pnpm
        uses: pnpm/action-setup@v4

      - name: Setup Node.js
        uses: actions/setup-node@v5
        with:
          node-version: "24"
          cache: pnpm

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

      - name: Lint
        run: pnpm lint

  typecheck:
    name: Typecheck
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install pnpm
        uses: pnpm/action-setup@v4

      - name: Setup Node.js
        uses: actions/setup-node@v5
        with:
          node-version: "24"
          cache: pnpm

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

      - name: Typecheck
        run: pnpm typecheck

  test-shards:
    name: Test shard ${{ matrix.shard }}/3
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        shard: [1, 2, 3]

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install pnpm
        uses: pnpm/action-setup@v4

      - name: Setup Node.js
        uses: actions/setup-node@v5
        with:
          node-version: "24"
          cache: pnpm

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

      - name: Install Bun
        uses: oven-sh/setup-bun@v2

      - name: Test (deterministic shard)
        run: pnpm test:ci:shard --shard ${{ matrix.shard }} --total 3