import { api } from '@/lib/api'
import type {
  PaginatedResponse,
  ShopPOResponse,
  InvoiceResponse,
  InvoiceStatus,
  PaymentResponse,
  PaymentMethod,
  ShopPOStatus,
} from '@/types/api'

import type { PageParams } from './master'

// ─── Shop POs ─────────────────────────────────────────────────────────────────

export interface ShopPOItemBody {
  itemId: string
  quantity: number
  unitPrice?: number | null
}

export interface CreateShopPOBody {
  storeId: string
  items: ShopPOItemBody[]
}

export interface UpdateShopPOItemsBody {
  items: ShopPOItemBody[]
}

export interface ShopPOListParams extends PageParams {
  agentId?: string
  routeId?: string
  shopId?: string
  confirmed?: boolean
  status?: ShopPOStatus
}

export const shopPos = {
  list: (params?: ShopPOListParams) =>
    api.get<PaginatedResponse<ShopPOResponse>>('/shop-pos', { params }).then(r => r.data),

  get: (id: string) =>
    api.get<ShopPOResponse>(`/shop-pos/${id}`).then(r => r.data),

  create: (body: CreateShopPOBody) =>
    api.post<ShopPOResponse>('/shop-pos', body).then(r => r.data),

  updateItems: (id: string, body: UpdateShopPOItemsBody) =>
    api.put<ShopPOResponse>(`/shop-pos/${id}/items`, body).then(r => r.data),

  confirm: (id: string) =>
    api.post<ShopPOResponse>(`/shop-pos/${id}/confirm`).then(r => r.data),

  confirmAndCreateInvoice: (id: string) =>
    api.post<ShopPOResponse>(`/shop-pos/${id}/confirm-and-create-invoice`).then(r => r.data),

  cancel: (id: string) =>
    api.post<ShopPOResponse>(`/shop-pos/${id}/cancel`).then(r => r.data),
}

// ─── Invoices ─────────────────────────────────────────────────────────────────

export interface InvoiceListParams extends PageParams {
  agentId?: string
  routeId?: string
  shopId?: string
  status?: InvoiceStatus
}

export const invoices = {
  list: (params?: InvoiceListParams) =>
    api.get<PaginatedResponse<InvoiceResponse>>('/invoices', { params }).then(r => r.data),

  get: (id: string) =>
    api.get<InvoiceResponse>(`/invoices/${id}`).then(r => r.data),

  print: (id: string) =>
    api.post<InvoiceResponse>(`/invoices/${id}/print`).then(r => r.data),

  finalize: (id: string) =>
    api.post<InvoiceResponse>(`/invoices/${id}/finalize`).then(r => r.data),
}

// ─── Payments ─────────────────────────────────────────────────────────────────

export interface PaymentBody {
  amount: number
  method: PaymentMethod
  collectedByUserId?: string | null
}

export const payments = {
  listByInvoice: (invoiceId: string) =>
    api.get<PaymentResponse[]>(`/invoices/${invoiceId}/payments`).then(r => r.data),

  create: (invoiceId: string, body: PaymentBody) =>
    api.post<PaymentResponse>(`/invoices/${invoiceId}/payments`, body).then(r => r.data),
}