const mockApi = {
  members: [
    { _id: '1', name: '张三', attendance: [] },
    { _id: '2', name: '李四', attendance: [] },
  ],
  devices: [
    { _id: '1', name: '设备1', deviceId: 'DEV001', status: 'online' },
    { _id: '2', name: '设备2', deviceId: 'DEV002', status: 'offline' },
  ],
};

const mockApiHandlers = {
  '/api/members': async () => mockApi.members,
  '/api/devices': async () => mockApi.devices,
  '/api/members': async (method, body) => {
    if (method === 'POST') {
      const newMember = { _id: String(mockApi.members.length + 1), name: body.name, attendance: [] };
      mockApi.members.push(newMember);
      return newMember;
    }
    return mockApi.members;
  },
  '/api/attendance': async (method, body) => {
    if (method === 'POST') {
      const { memberId, date } = body;
      const member = mockApi.members.find(m => m._id === memberId);
      if (member) {
        member.attendance.push(date);
        return member;
      }
      throw new Error('会员不存在');
    }
  },
};

async function callMockApi(url, method = 'GET', body = null) {
  const handler = mockApiHandlers[url.split('?')[0]];
  if (handler) {
    return await handler(method, body);
  }
  throw new Error('Not found');
}

window.mockApi = {
  fetch: async (url, options = {}) => {
    try {
      const result = await callMockApi(url, options.method, options.body ? JSON.parse(options.body) : null);
      return {
        ok: true,
        json: async () => result,
      };
    } catch (error) {
      return {
        ok: false,
        status: 404,
        json: async () => ({ message: error.message }),
      };
    }
  }
};