name: Tests

on:
  push:
    branches: [main]
  pull_request:

jobs:
  test-features:
    name: test-features.mjs (smoke)
    runs-on: ubuntu-latest

    strategy:
      matrix:
        node-version: ['20', '24']
      fail-fast: false

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

      - name: Setup Node ${{ matrix.node-version }}
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node-version }}

      - name: Detect package-lock
        id: detect_lock
        shell: bash
        run: |
          if [ -f package-lock.json ]; then
            DEPS="$(node -p "Object.keys(require('./package.json').dependencies || {}).length")"
            if [ "$DEPS" -gt 0 ]; then
              echo "needs_install=true" >> $GITHUB_OUTPUT
            else
              echo "needs_install=false" >> $GITHUB_OUTPUT
            fi
          else
            echo "needs_install=false" >> $GITHUB_OUTPUT
          fi

      - name: npm install (if dependencies present)
        if: steps.detect_lock.outputs.needs_install == 'true'
        run: npm ci

      - name: Run npm test
        shell: bash
        run: |
          # Bootstrap tolerance: skip if either test-features.mjs is absent OR
          # package.json has no scripts.test entry. v0.1 founding ships
          # neither — both land with Phase 1 per spec §6. Once one or both
          # are present, this guard falls through to `npm test`.
          if [ ! -f test-features.mjs ] || ! node -e "p=require('./package.json');process.exit(p.scripts&&p.scripts.test?0:1)" 2>/dev/null; then
            echo "::notice::Phase 0 bootstrap: test-features.mjs absent OR scripts.test not declared in package.json. Skipping. Both land with Phase 1 per docs/adr/0001 / spec §6."
            exit 0
          fi
          npm test