import { beforeEach, describe, expect, it } from 'vitest';
import { screen, waitFor, within } from '@testing-library/react';
import userEvent from '@testing-library/user-event';

import {
  installFetch,
  installGatewaySocket,
  json,
  makeReadySnapshot,
  makeUser,
  messagesRoutes,
  renderApp,
  resetStores,
  type FetchRoute,
} from './helpers';

/**
 * Доступ к комнате (AGENT.md 6.2, 7.5): приватная комната закрывается запретом
 * @everyone, права выдаются ролям, а смена прав требует подтверждения личности.
 */

const user = makeUser({ id: 'user-1' });

const channel = {
  id: 'c-1',
  guild_id: 'g-1',
  name: 'общий',
  type: 'text' as const,
  position: 0,
  can_view: true,
  permission_overwrites: [],
};

const roles = [
  { id: 'r-1', name: '@everyone', color: 0, position: 0, permissions: '', is_default: true },
  { id: 'r-2', name: 'Модераторы', color: 0, position: 1, permissions: '', is_default: false },
];

const members = [
  {
    user_id: 'user-2',
    username: 'bob',
    display_name: 'Bob',
    status: 'online',
    is_instance_admin: false,
    joined_at: '2026-09-01T00:00:00Z',
    role_ids: [],
  },
];

/** routes собирает мок REST: комнаты, роли и участники сервера. */
function routes(permissions: string[], extra: FetchRoute[] = []): FetchRoute[] {
  return [
    ...extra,
    {
      match: '/api/v1/users/@me/guilds',
      response: () =>
        json({
          guilds: [
            {
              id: 'g-1',
              name: 'Сервер',
              owner_id: 'user-1',
              is_main: true,
              member_count: 2,
              my_permissions: permissions,
              my_role_ids: [],
            },
          ],
        }),
    },
    { match: '/api/v1/users/@me', response: () => json({ user }) },
    { match: '/api/v1/instance', response: () => json({ instance: { name: 'glchat-test' } }) },
    { match: '/api/v1/guilds/g-1/channels', response: () => json({ channels: [channel] }) },
    { match: '/api/v1/guilds/g-1/members', response: () => json({ members }) },
    { match: '/api/v1/guilds/g-1/roles', response: () => json({ roles }) },
    {
      match: '/api/v1/guilds/g-1',
      response: () =>
        json({
          guild: {
            id: 'g-1',
            name: 'Сервер',
            owner_id: 'user-1',
            is_main: true,
            member_count: 2,
            my_role_ids: [],
            my_permissions: permissions,
            channels: [channel],
            roles: [],
          },
        }),
    },
    ...messagesRoutes('c-1', []),
  ];
}

beforeEach(() => {
  resetStores();
});

/** openChannelSettings открывает настройки комнаты из шапки чата. */
async function openChannelSettings(permissions: string[], extra: FetchRoute[] = []) {
  const fetchMock = installFetch(routes(permissions, extra));
  const snapshot = makeReadySnapshot([
    {
      id: 'g-1',
      name: 'Сервер',
      is_main: true,
      owner_id: permissions.includes('MANAGE_ROLES') ? 'user-1' : 'user-9',
      my_permissions: permissions,
      channels: [channel],
    },
  ]);
  const gateway = installGatewaySocket(snapshot);
  renderApp('/app/g-1/c-1');
  await gateway.greet();
  await screen.findByTestId('message-list');
  await userEvent.click(await screen.findByTestId('channel-settings'));
  const content = await screen.findByTestId('settings-content');
  return { fetchMock, content };
}

describe('доступ к комнате', () => {
  it('приватная комната закрывается запретом @everyone, права ролей меняются', async () => {
    const calls: { url: string; body: unknown }[] = [];
    const { content } = await openChannelSettings(
      ['MANAGE_ROLES', 'MANAGE_GUILD'],
      [
        {
          match: '/api/v1/guilds/g-1/channels/c-1/overwrites/role/r-1',
          method: 'PUT',
          response: (request) => {
            calls.push({ url: request.url, body: request.body });
            return json({ channel });
          },
        },
        {
          match: '/api/v1/guilds/g-1/channels/c-1/overwrites/role/r-2',
          method: 'PUT',
          response: (request) => {
            calls.push({ url: request.url, body: request.body });
            return json({ channel });
          },
        },
      ],
    );

    const editor = await within(content).findByTestId('channel-permissions');
    expect(within(editor).getByTestId('channel-permission-row-r-1')).toHaveTextContent('@everyone');

    // Включаем приватность: оверрайд @everyone получает запрет просмотра.
    await userEvent.click(within(content).getByTestId('channel-private-toggle'));
    await waitFor(() => expect(calls).toHaveLength(1));
    expect(calls[0]?.body).toEqual({ allow: '', deny: 'VIEW_CHANNEL' });

    // Разрешаем роли просмотр: в запросе появляется allow с именем права.
    await userEvent.selectOptions(
      within(editor).getByTestId('channel-permission-r-2-view_channel'),
      'allow',
    );
    await waitFor(() => expect(calls).toHaveLength(2));
    expect(calls[1]?.url).toContain('/overwrites/role/r-2');
    expect(calls[1]?.body).toEqual({ allow: 'VIEW_CHANNEL', deny: '' });

    // Запрет переписки для @everyone уходит отдельным правом.
    await userEvent.selectOptions(
      within(editor).getByTestId('channel-permission-r-1-send_messages'),
      'deny',
    );
    await waitFor(() => expect(calls).toHaveLength(3));
    expect(calls[2]?.body).toEqual({ allow: '', deny: 'SEND_MESSAGES' });
  });

  it('смена прав повторяется после подтверждения личности', async () => {
    const calls: { body: unknown }[] = [];
    let requireStepUp = true;
    const { content } = await openChannelSettings(
      ['MANAGE_ROLES', 'MANAGE_GUILD'],
      [
        {
          match: '/api/v1/guilds/g-1/channels/c-1/overwrites/role/r-1',
          method: 'PUT',
          response: (request) => {
            calls.push({ body: request.body });
            // Сервер требует свежее подтверждение личности (AGENT.md 9.3).
            if (requireStepUp) {
              requireStepUp = false;
              return json({ error: { code: 'auth.step_up_required', message: 'need' } }, 403);
            }
            return json({ channel });
          },
        },
        { match: '/api/v1/auth/step-up', method: 'POST', response: () => json({ ok: true }) },
      ],
    );

    await within(content).findByTestId('channel-permissions');
    await userEvent.click(within(content).getByTestId('channel-private-toggle'));
    await waitFor(() => expect(calls).toHaveLength(1));

    const stepUp = await within(content).findByTestId('channel-permissions-step-up');
    await userEvent.type(within(stepUp).getByLabelText('Ваш пароль'), 'correct-horse-battery');
    await userEvent.click(within(stepUp).getByRole('button', { name: 'Подтвердить' }));
    await waitFor(() => expect(calls).toHaveLength(2));
    expect(calls[1]?.body).toEqual({ allow: '', deny: 'VIEW_CHANNEL' });
  });

  it('без права MANAGE_ROLES редактор доступа скрыт', async () => {
    // Шестерёнка комнаты доступна по MANAGE_WEBHOOKS, но прав на доступ нет.
    const { content } = await openChannelSettings(['MANAGE_WEBHOOKS', 'MANAGE_GUILD']);
    await waitFor(() =>
      expect(within(content).queryByTestId('channel-permissions')).not.toBeInTheDocument(),
    );
  });
});