/**
 * Phase-3 acceptance tests: role-aware 预警 (alerts) view.
 *
 * Two view-preset invariants (D2 — frontend presets, NOT access control):
 *
 *  1. PRIVACY INVARIANT (doctor / ?view=cluster): the doctor sees ONLY the aggregated
 *     density raster + the disease filter — ZERO individual patient/case point markers.
 *     The page mirrors every individual marker it would actually render into a hidden
 *     data-testid="patient-point" element (the live Leaflet CircleMarkers are canvas/SVG
 *     objects with no testid and can't be counted directly). In cluster mode the page
 *     forces showAlertMarkers=false, so that mirror set is empty → patient-point count 0.
 *
 *  2. 官员 (official) GRID-HIDE: the 100m 网格 is meaningless for leadership, so the grid
 *     toggle wrapper (data-testid="grid-layer-wrapper") is not rendered at all.
 *
 * Auth + API mocking mirror e2e/user-flows.spec.ts so the suite runs hermetically
 * (no live :8000 backend). Role is seeded via localStorage['cbpoa_role'].
 */
import { test, expect, Page } from '@playwright/test';
import { TESTIDS } from '../src/utils/testids';

/**
 * Seed auth token (+ optional role) and mock all /api/** calls before page load.
 * Response shapes copied from user-flows.spec.ts.
 */
async function seedAuthAndMockApi(page: Page, role?: string) {
  await page.addInitScript((r) => {
    localStorage.setItem('cbpoa_token', 'e2e-test-token');
    if (r) localStorage.setItem('cbpoa_role', r);
  }, role ?? '');

  await page.route('/api/**', (route) => {
    const url = route.request().url();

    if (url.includes('/alerts')) {
      route.fulfill({
        status: 200,
        contentType: 'application/json',
        body: JSON.stringify({ alerts: [], total: 0 }),
      });
      return;
    }
    if (url.includes('/history/aggregated')) {
      route.fulfill({
        status: 200,
        contentType: 'application/json',
        body: JSON.stringify({ aggregations: [], total_records: 0 }),
      });
      return;
    }
    if (url.includes('/grids')) {
      route.fulfill({
        status: 200,
        contentType: 'application/json',
        body: JSON.stringify({ type: 'FeatureCollection', features: [] }),
      });
      return;
    }
    if (url.includes('/cases/demographics')) {
      route.fulfill({
        status: 200,
        contentType: 'application/json',
        body: JSON.stringify({
          age_distribution: [],
          gender_split: { male: { outpatient: 0, inpatient: 0 }, female: { outpatient: 0, inpatient: 0 } },
          age_diagnosis_matrix: [],
        }),
      });
      return;
    }
    if (url.includes('/cases/diagnosis-distribution') || url.includes('/cases/disease-seasonality')) {
      route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify([]) });
      return;
    }
    if (url.includes('/diagnoses') || url.includes('/diagnosis-list')) {
      route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify([]) });
      return;
    }
    if (url.includes('/cases/districts') || url.includes('/districts')) {
      route.fulfill({ status: 200, contentType: 'application/json', body: JSON.stringify([]) });
      return;
    }
    if (url.includes('/cases/trend') || url.includes('/cases')) {
      route.fulfill({
        status: 200,
        contentType: 'application/json',
        body: JSON.stringify({ data: [], total: 0 }),
      });
      return;
    }
    route.fulfill({
      status: 200,
      contentType: 'application/json',
      body: JSON.stringify({ data: [], items: [], total: 0 }),
    });
  });
}

test.describe('role-aware 预警 view (Phase 3)', () => {
  test.use({ viewport: { width: 1280, height: 800 } });

  test('医生 /alerts?view=cluster: cluster-view mounts, disease filter present, ZERO patient points', async ({
    page,
  }) => {
    await seedAuthAndMockApi(page, 'doctor');
    await page.goto('/alerts?view=cluster');

    // Page + the aggregated density (cluster) map both mount.
    await expect(page.locator(`[data-testid="${TESTIDS.pageAlerts}"]`)).toBeVisible();
    await expect(page.locator(`[data-testid="${TESTIDS.clusterView}"]`)).toBeVisible();

    // The disease filter is the doctor's core tool — it must be on the page.
    await expect(page.getByText('按病种筛选')).toBeVisible();

    // PRIVACY INVARIANT: not a single individual patient/case point may be rendered.
    // Asserted at the data level (the mirrored DOM set), independent of Leaflet internals.
    await expect(page.getByTestId(TESTIDS.patientPoint)).toHaveCount(0);

    // The 预警标记 toggle (which would turn individual markers on) must be absent,
    // so there is no way for the doctor to opt out of the privacy invariant.
    await expect(page.getByRole('button', { name: '预警标记' })).toHaveCount(0);
  });

  test('官员 /alerts: 100m grid hidden — grid-layer-wrapper not rendered', async ({ page }) => {
    await seedAuthAndMockApi(page, 'official');
    await page.goto('/alerts');

    await expect(page.locator(`[data-testid="${TESTIDS.pageAlerts}"]`)).toBeVisible();

    // The grid toggle wrapper must be entirely absent for leadership.
    await expect(page.getByTestId(TESTIDS.gridLayerWrapper)).toHaveCount(0);
  });

  test('admin /alerts: full behavior — grid toggle present, no forced cluster view', async ({ page }) => {
    await seedAuthAndMockApi(page, 'admin');
    await page.goto('/alerts');

    await expect(page.locator(`[data-testid="${TESTIDS.pageAlerts}"]`)).toBeVisible();
    // Admin keeps the grid toggle and is NOT forced into cluster view.
    await expect(page.getByTestId(TESTIDS.gridLayerWrapper)).toHaveCount(1);
    await expect(page.locator(`[data-testid="${TESTIDS.clusterView}"]`)).toHaveCount(0);
  });
});