import {QueryClient, QueryClientProvider} from '@tanstack/react-query';
import {fireEvent, render, screen, waitFor} from '@testing-library/react';
import {createElement} from 'react';
import {beforeEach, describe, expect, it, vi} from 'vitest';

import {
  reorderRuleIDs,
  WafSection,
} from '@/app/(main)/proxy-routes/detail/components/waf-section';
import type {ProxyRouteItem, WAFRule} from '@/lib/services/openflare';
import {WafService} from '@/lib/services/openflare';

vi.mock('@/lib/services/openflare', async (importOriginal) => {
  const actual = await importOriginal<typeof import('@/lib/services/openflare')>();
  return {
    ...actual,
    WafService: {
      listSiteRuleGroups: vi.fn(),
      updateSiteRuleGroups: vi.fn(),
    },
  };
});

const graph = {
  schema_version: 1,
  nodes: [
    {id: 'start', type: 'start' as const, position: {x: 0, y: 0}, config: {}},
    {id: 'allow', type: 'allow' as const, position: {x: 100, y: 0}, config: {}},
  ],
  edges: [{id: 'edge', source: 'start', source_handle: 'next', target: 'allow'}],
};

function rule(id: number, name: string, isGlobal = false): WAFRule {
  return {
    id,
    name,
    enabled: true,
    is_global: isGlobal,
    graph,
    revision: 1,
    applied_site_ids: [],
    applied_site_count: 0,
    created_at: '',
    updated_at: '',
  };
}

describe('WAF route binding order', () => {
  beforeEach(() => {
    vi.stubGlobal(
      'ResizeObserver',
      class {
        observe() {}
        unobserve() {}
        disconnect() {}
      },
    );
    vi.mocked(WafService.listSiteRuleGroups).mockReset();
    vi.mocked(WafService.updateSiteRuleGroups).mockReset();
    vi.mocked(WafService.listSiteRuleGroups).mockResolvedValue({
      route_id: 9,
      global_rule_group: rule(99, '全局规则', true),
      rule_groups: [rule(1, '规则 A'), rule(2, '规则 B'), rule(3, '规则 C')],
      applied_rule_groups: [rule(1, '规则 A'), rule(2, '规则 B')],
      applied_ids: [1, 2],
    });
    vi.mocked(WafService.updateSiteRuleGroups).mockImplementation(async (_routeID, ids) => ({
      route_id: 9,
      global_rule_group: rule(99, '全局规则', true),
      rule_groups: [rule(1, '规则 A'), rule(2, '规则 B'), rule(3, '规则 C')],
      applied_rule_groups: ids.map((id) => rule(id, `规则 ${id}`)),
      applied_ids: ids,
    }));
  });

  it('reorders by the active and target IDs reported by drag end', () => {
    expect(reorderRuleIDs([1, 2, 3], 3, 1)).toEqual([3, 1, 2]);
  });

  it('keeps the global rule fixed and submits custom rules in UI order', async () => {
    const client = new QueryClient({defaultOptions: {queries: {retry: false}}});
    render(
      createElement(
        QueryClientProvider,
        {client},
        createElement(WafSection, {route: {id: 9} as ProxyRouteItem}),
      ),
    );

    expect(await screen.findByText('全局规则')).toBeInTheDocument();
    expect(screen.getByText('始终生效')).toBeInTheDocument();
    expect(screen.queryByRole('button', {name: '上移全局规则'})).not.toBeInTheDocument();

    fireEvent.click(screen.getByRole('checkbox', {name: '选择规则 C'}));
    fireEvent.click(screen.getByRole('button', {name: '上移规则 C'}));
    fireEvent.click(screen.getByRole('button', {name: '上移规则 C'}));
    fireEvent.click(screen.getByRole('button', {name: '保存'}));

    await waitFor(() => {
      expect(WafService.updateSiteRuleGroups).toHaveBeenCalledWith(9, [3, 1, 2]);
    });
  });
});