import test from 'node:test';
import assert from 'node:assert/strict';
import { mapLoginResult, mapMeResult, mapUserAccount, mapUserAccountList } from './authUserMap';
import { AuthClient } from './auth';

const snakeAdminUser = {
  id: 1,
  username: 'admin',
  name: '系统管理员',
  status: 'active',
  must_change_password: false,
  role_id: 'role-admin',
  position: '系统管理员',
  employee_id: 'SYS-000',
  department: '系统运维部',
  created_at: '2026-09-13T00:00:00Z',
  updated_at: '2026-09-13T00:00:00Z',
};

test('mapUserAccount: snake_case Go contract → camelCase', () => {
  const u = mapUserAccount(snakeAdminUser);
  assert.equal(u.roleId, 'role-admin');
  assert.equal(u.employeeId, 'SYS-000');
  assert.equal(u.mustChangePassword, false);
  assert.equal(u.createdAt, '2026-09-13T00:00:00Z');
  assert.equal(u.updatedAt, '2026-09-13T00:00:00Z');
  assert.equal(u.username, 'admin');
});

test('mapUserAccount: prefers snake_case when both present', () => {
  const u = mapUserAccount({
    ...snakeAdminUser,
    roleId: 'role-guest',
    role_id: 'role-admin',
    employeeId: 'WRONG',
    employee_id: 'SYS-000',
  });
  assert.equal(u.roleId, 'role-admin');
  assert.equal(u.employeeId, 'SYS-000');
});

test('mapLoginResult/mapMeResult use top-level must_change_password as sole authority', () => {
  // Nested true must not revive when top-level is false (post password-change cache).
  const me = mapMeResult({
    user: { ...snakeAdminUser, must_change_password: true },
    must_change_password: false,
    env: 'dev',
    capabilities: [],
  });
  assert.equal(me.mustChangePassword, false);
  assert.equal(me.user.mustChangePassword, false);

  const login = mapLoginResult({
    token: 'tok-2',
    user: { ...snakeAdminUser, must_change_password: true },
    must_change_password: false,
    env: 'dev',
  });
  assert.equal(login.mustChangePassword, false);
  assert.equal(login.user.mustChangePassword, false);
});

test('mapUserAccountList maps admin users list', () => {
  const list = mapUserAccountList([
    snakeAdminUser,
    {
      id: 2,
      username: 'eng',
      name: '工程师',
      status: 'active',
      must_change_password: true,
      role_id: 'role-engineer',
      position: '助理工程师',
      employee_id: 'RD-010',
      department: '研发',
      created_at: '2026-09-13T01:00:00Z',
      updated_at: '2026-09-13T01:00:00Z',
    },
  ]);
  assert.equal(list.length, 2);
  assert.equal(list[0].roleId, 'role-admin');
  assert.equal(list[1].roleId, 'role-engineer');
  assert.equal(list[1].mustChangePassword, true);
  assert.equal(list[1].employeeId, 'RD-010');
});

test('AuthClient.login + fetchMe map real snake_case wire payloads', async () => {
  const originalFetch = globalThis.fetch;
  const originalWindow = (globalThis as { window?: unknown }).window;
  const store: Record<string, string> = {};
  const localStorage = {
    getItem: (k: string) => store[k] ?? null,
    setItem: (k: string, v: string) => {
      store[k] = v;
    },
    removeItem: (k: string) => {
      delete store[k];
    },
  };
  const mockFetch = (async (input: RequestInfo | URL, init?: RequestInit) => {
    const url = String(input);
    if (url.includes('/api/v1/auth/login')) {
      return new Response(
        JSON.stringify({
          token: 'wire-token',
          user: snakeAdminUser,
          must_change_password: false,
          env: 'dev',
        }),
        { status: 200, headers: { 'Content-Type': 'application/json' } },
      );
    }
    if (url.includes('/api/v1/auth/me')) {
      return new Response(
        JSON.stringify({
          user: snakeAdminUser,
          must_change_password: false,
          env: 'dev',
          capabilities: ['admin:manage_users'],
        }),
        { status: 200, headers: { 'Content-Type': 'application/json' } },
      );
    }
    if (url.includes('/api/v1/admin/users') && (!init?.method || init.method === 'GET')) {
      return new Response(JSON.stringify({ users: [snakeAdminUser] }), {
        status: 200,
        headers: { 'Content-Type': 'application/json' },
      });
    }
    return new Response('not found', { status: 404 });
  }) as typeof fetch;

  globalThis.fetch = mockFetch;
  (globalThis as { window: unknown }).window = { fetch: mockFetch, localStorage };

  try {
    const client = new AuthClient();
    const session = await client.login({ username: 'admin', password: 'x' });
    assert.equal(session.user.roleId, 'role-admin');
    assert.equal(session.user.employeeId, 'SYS-000');
    assert.equal(session.mustChangePassword, false);
    assert.ok(session.capabilities?.includes('admin:manage_users'));

    const me = await client.fetchMe();
    assert.equal(me.user.roleId, 'role-admin');
    assert.equal(me.user.employeeId, 'SYS-000');
    assert.equal(me.mustChangePassword, false);

    const users = await client.getAdminUsers();
    assert.equal(users[0].roleId, 'role-admin');
    assert.equal(users[0].employeeId, 'SYS-000');
  } finally {
    globalThis.fetch = originalFetch;
    if (originalWindow === undefined) {
      delete (globalThis as { window?: unknown }).window;
    } else {
      (globalThis as { window: unknown }).window = originalWindow;
    }
  }
});