name: Test
on: [push]

jobs:
  unit-test:
    runs-on: test
    steps:
      - uses: actions/checkout@v4
      - name: Install & Run unit tests
        run: cd frontend && npm ci && npx vitest run --reporter=verbose

  e2e-test:
    runs-on: test
    needs: unit-test
    timeout-minutes: 15
    steps:
      - uses: actions/checkout@v4

      - name: Install frontend deps
        run: cd frontend && npm ci

      - name: Install backend deps
        run: python3 -m venv /tmp/ci-venv && /tmp/ci-venv/bin/pip install -q -r backend/requirements.txt

      - name: E2E tests
        run: |
          # Dynamic ports to avoid conflicts
          BE_PORT=$(shuf -i 9000-9999 -n 1)
          FE_PORT=$(shuf -i 4000-4999 -n 1)
          DB_FILE="/tmp/ci_oil_test_${BE_PORT}.db"
          echo "Using backend=$BE_PORT frontend=$FE_PORT db=$DB_FILE"

          # Known admin token for E2E tests
          ADMIN_TOKEN="cypress_ci_admin_token_e2e_$(echo $BE_PORT)"
          export ADMIN_TOKEN

          # Start backend
          DB_PATH="$DB_FILE" FRONTEND_DIR=/dev/null ADMIN_TOKEN="$ADMIN_TOKEN" \
            /tmp/ci-venv/bin/uvicorn backend.main:app --port $BE_PORT &
          BE_PID=$!

          # Start frontend with proxy to dynamic backend port
          (cd frontend && VITE_API_PORT=$BE_PORT npx vite --port $FE_PORT) &
          FE_PID=$!

          # Wait for both servers (max 30s, fail fast)
          READY=0
          for i in $(seq 1 30); do
            if curl -sf http://localhost:$BE_PORT/api/oils > /dev/null 2>&1 && \
               curl -sf http://localhost:$FE_PORT/ > /dev/null 2>&1; then
              echo "Both servers ready in ${i}s"
              READY=1
              break
            fi
            sleep 1
          done

          if [ "$READY" = "0" ]; then
            echo "ERROR: Servers failed to start within 30s"
            kill $BE_PID $FE_PID 2>/dev/null
            rm -f "$DB_FILE"
            exit 1
          fi

          # Run specs in smaller batches (≤6 per run) to avoid Electron memory
          # hangs seen when a single cypress run handles 10+ specs on the CI runner.
          cd frontend
          CYPRESS_CFG="video=false,defaultCommandTimeout=5000,pageLoadTimeout=10000,requestTimeout=5000,responseTimeout=10000,baseUrl=http://localhost:$FE_PORT,experimentalMemoryManagement=true,numTestsKeptInMemory=0"
          FAIL=0

          run_batch() {
            local name="$1"; shift
            echo "=== $name ==="
            timeout 300 npx cypress run \
              --spec "$1" \
              --config "$CYPRESS_CFG" --env "ADMIN_TOKEN=$ADMIN_TOKEN"
            local rc=$?
            if [ $rc -ne 0 ]; then
              echo "!!! $name failed (rc=$rc)"
              FAIL=1
            fi
          }

          run_batch "Batch 1a: API parity" \
            "cypress/e2e/api-crud.cy.js,cypress/e2e/api-health.cy.js,cypress/e2e/oil-data-integrity.cy.js,cypress/e2e/recipe-cost-parity.cy.js,cypress/e2e/endpoint-parity.cy.js"
          run_batch "Batch 1b: features" \
            "cypress/e2e/registration-flow.cy.js,cypress/e2e/pr27-features.cy.js,cypress/e2e/kit-export.cy.js"

          run_batch "Batch 2a: auth & nav" \
            "cypress/e2e/auth-flow.cy.js,cypress/e2e/admin-flow.cy.js,cypress/e2e/navigation.cy.js,cypress/e2e/recipe-detail.cy.js,cypress/e2e/recipe-search.cy.js"
          run_batch "Batch 2b: user flows" \
            "cypress/e2e/manage-recipes.cy.js,cypress/e2e/diary-flow.cy.js,cypress/e2e/favorites.cy.js,cypress/e2e/inventory-flow.cy.js,cypress/e2e/demo-walkthrough.cy.js"

          run_batch "Batch 3a: misc flows" \
            "cypress/e2e/app-load.cy.js,cypress/e2e/account-settings.cy.js,cypress/e2e/audit-log-advanced.cy.js,cypress/e2e/batch-operations.cy.js,cypress/e2e/bug-tracker-flow.cy.js,cypress/e2e/category-modules.cy.js"
          run_batch "Batch 3b: pages & perf" \
            "cypress/e2e/notification-flow.cy.js,cypress/e2e/oil-reference.cy.js,cypress/e2e/oil-smart-paste.cy.js,cypress/e2e/performance.cy.js,cypress/e2e/price-display.cy.js,cypress/e2e/projects-flow.cy.js"
          run_batch "Batch 3c: responsive & admin" \
            "cypress/e2e/responsive.cy.js,cypress/e2e/search-advanced.cy.js,cypress/e2e/user-management-flow.cy.js,cypress/e2e/visual-check.cy.js"

          # Cleanup
          kill $BE_PID $FE_PID 2>/dev/null
          pkill -f "Cypress" 2>/dev/null || true
          rm -f "$DB_FILE"

          if [ $FAIL -ne 0 ]; then
            exit 1
          fi

  build-check:
    runs-on: test
    steps:
      - uses: actions/checkout@v4
      - name: Build frontend
        run: cd frontend && npm ci && npm run build