import apiClient from './client';

export interface Customer {
  id: string;
  name: string;
  addresses: string[];
  /** Contact email for proposal delivery. Null when not set. */
  contactEmail?: string | null;
  createdAt: string;
}

export interface CustomerListParams {
  page?: number;
  pageSize?: number;
  search?: string;
}

export interface PagedCustomerResponse {
  items: Customer[];
  totalCount: number;
  page: number;
  pageSize: number;
}

export interface CreateCustomerRequest {
  name: string;
  address: string;
  contactEmail?: string;
}

export interface UpdateCustomerRequest {
  name: string;
  address: string;
  contactEmail?: string;
}

export const customersApi = {
  /** GET /api/customers?query=<q> — search autocomplete (unchanged). */
  search: async (query?: string): Promise<Customer[]> => {
    const params = query ? `?query=${encodeURIComponent(query)}` : '';
    const res = await apiClient.get(`/customers${params}`);
    return res.data;
  },

  /** GET /api/customers/list?page=&pageSize= — paginated management list (admin/sysadmin). */
  list: async (params: CustomerListParams = {}): Promise<PagedCustomerResponse> => {
    const qs = new URLSearchParams();
    if (params.page) qs.append('page', String(params.page));
    if (params.pageSize) qs.append('pageSize', String(params.pageSize));
    if (params.search) qs.append('search', params.search);
    const res = await apiClient.get(`/customers/list?${qs.toString()}`);
    return res.data;
  },

  /** POST /api/customers — create a new customer. */
  create: async (data: CreateCustomerRequest): Promise<Customer> => {
    const res = await apiClient.post('/customers', data);
    return res.data;
  },

  /** PUT /api/customers/{id} — update an existing customer (admin/sysadmin). */
  update: async (id: string, data: UpdateCustomerRequest): Promise<Customer> => {
    const res = await apiClient.put(`/customers/${id}`, data);
    return res.data;
  },
};