import type { Order, OrderStatus } from '../data/orders'
import { apiRequest } from './api'

export type OrderListResponse = {
  items: Order[]
  total: number
  page: number
  pageSize: number
}

export type ListOrdersParams = {
  q?: string
  status?: OrderStatus | ''
  customerId?: string
  page?: number
  pageSize?: number
}

export type CreateOrderItemPayload = {
  productId: string
  quantity: number
  optionIds?: string[]
}

export type CreateOrderPayload = {
  customerId: string
  deliveryType: 'pickup' | 'shipping'
  branchId?: string
  shippingAddressId?: string
  note?: string
  items: CreateOrderItemPayload[]
}

function buildQuery(params: ListOrdersParams) {
  const search = new URLSearchParams()
  if (params.q?.trim()) search.set('q', params.q.trim())
  if (params.status) search.set('status', params.status)
  if (params.customerId) search.set('customerId', params.customerId)
  if (params.page) search.set('page', String(params.page))
  if (params.pageSize) search.set('pageSize', String(params.pageSize))
  const qs = search.toString()
  return qs ? `?${qs}` : ''
}

export function listOrders(params: ListOrdersParams = {}) {
  return apiRequest<OrderListResponse>(`/orders${buildQuery(params)}`)
}

export function listMyOrders(params: ListOrdersParams = {}) {
  return apiRequest<OrderListResponse>(`/orders/mine${buildQuery(params)}`)
}

export function getOrder(id: string) {
  return apiRequest<Order>(`/orders/${id}`)
}

export function getMyOrder(id: string) {
  return apiRequest<Order>(`/orders/mine/${id}`)
}

export function createOrder(payload: CreateOrderPayload) {
  return apiRequest<Order>('/orders', {
    method: 'POST',
    body: payload,
  })
}

export function updateOrderStatus(id: string, status: OrderStatus) {
  return apiRequest<Order>(`/orders/${id}/status`, {
    method: 'PATCH',
    body: { status },
  })
}