name: Fuzz

on:
  schedule:
    - cron: '0 6 * * 1'  # weekly Monday 6am UTC
  workflow_dispatch:

permissions:
  contents: read

jobs:
  fuzz:
    name: Fuzz (fast-check)
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          persist-credentials: false
      - uses: actions/setup-node@49370e3971a4ee557de957e9b7a0843e1d35e9e8 # v4.4.0
        with:
          node-version: '20'
      - run: |
          if [ -f "package.json" ]; then
            npm ci --if-present 2>/dev/null || true
            npx fast-check --version 2>/dev/null || npm install -D fast-check || true
            npm run test:fuzz --if-present 2>/dev/null || echo "No fuzz tests found yet (Phase 2)"
          else
            echo "No fuzz tests found yet (Phase 2)"
          fi