import createAxios from '@/utils/request';
import { downloadBlob } from '@/api/common/download.ts';
import type {
  IBillPrepare,
  IPurchaseCell,
  IPurchaseDetail,
  IPurchaseStoreSummary,
  PurchaseStoreItemAddParams,
  PurchaseStoreItemUpdateParams,
} from '@/domain/iPurchaseOrder.ts';

/** 订单商品参数修改 */
export interface PurchaseRowUpdateParams {
  product_name: string;
  supplier_id: number;
  product_spec: string;
  unit: string;
  cost_price: number;
}

/** 修改门店订单明细参数 */
export interface PurchaseCellUpdateParams {
  quantity: number;
  price: number;
  weight?: number;
}

/** 生成账单：单个门店的配送费/周转筐/托盘数量与售后金额/备注 */
export interface BillGenerateStoreParams {
  store_id: number;
  delivery_fee: number;
  box_num: number;
  tray_num: number;
  /** 售后金额（可正负，计入总金额；正数=加收，负数=售后减免） */
  after_sale?: number;
  /** 备注 */
  remark?: string;
}


/** 生成采购单 */
export async function generatePurchase(purchase_date: string, order_ids?: number[]) {
  return createAxios<{ id: number; purchase_no: string }>({
    url: '/purchase/order/generate',
    method: 'post',
    data: { purchase_date, order_ids },
  });
}

/** 采购单详情 */
export async function getPurchaseDetail(id: number) {
  return createAxios<IPurchaseDetail>({
    url: `/purchase/order/${id}`,
    method: 'get',
  });
}

/** 商品行修改 */
export async function updatePurchaseRow(purchaseId: number, productId: number, data: PurchaseRowUpdateParams) {
  return createAxios<{ count: number }>({
    url: `/purchase/order/${purchaseId}/row/${productId}`,
    method: 'put',
    data,
  });
}

/** 单元格下钻：采购单中某门店某商品的全部订货明细 */
export async function getPurchaseCell(purchaseId: number, productId: number, storeId: number) {
  return createAxios<IPurchaseCell>({
    url: `/purchase/order/${purchaseId}/cell`,
    method: 'get',
    params: { product_id: productId, store_id: storeId },
  });
}

/** 切换单品「已对账」标记（入库持久化，再次调用取消标记） */
export async function togglePurchaseItemCheck(purchaseId: number, productId: number) {
  return createAxios<{ checked: boolean }>({
    url: `/purchase/order/${purchaseId}/check/${productId}`,
    method: 'put',
  });
}

/** 批量设置单品「已对账」标记（全选：checked=true 批量标记，false 批量取消） */
export async function batchPurchaseItemCheck(purchaseId: number, productIds: number[], checked: boolean) {
  return createAxios<{ count: number }>({
    url: `/purchase/order/${purchaseId}/check`,
    method: 'put',
    data: { product_ids: productIds, checked },
  });
}

/** 门店订单明细修改（订货量、重量、单价），自动重算价格 */
export async function updatePurchaseCellItem(itemId: number, data: PurchaseCellUpdateParams) {
  return createAxios({
    url: `/purchase/order/cell/${itemId}`,
    method: 'put',
    data,
  });
}

/** 门店购买详情：采购单内某门店的采购汇总（按商品聚合） */
export async function getPurchaseStoreSummary(purchaseId: number, storeId: number) {
  return createAxios<IPurchaseStoreSummary>({
    url: `/purchase/order/${purchaseId}/store`,
    method: 'get',
    params: { store_id: storeId },
  });
}

/** 账单生成预览：按门店汇总商品金额（金额只读） */
export async function getBillPrepare(purchaseId: number) {
  return createAxios<IBillPrepare>({
    url: `/purchase/order/${purchaseId}/bill/prepare`,
    method: 'get',
  });
}

/** 生成账单：已完成采购单按门店各生成一张（关联采购单全部订单，金额由系统汇总不可修改） */
export async function generateBill(purchaseId: number, stores: BillGenerateStoreParams[]) {
  return createAxios<{ count: number }>({
    url: `/purchase/order/${purchaseId}/bill`,
    method: 'post',
    data: { stores },
  });
}

/** 门店购买详情：新增单品（挂靠该门店在采购单中的最新一笔订单） */
export async function addPurchaseStoreItem(purchaseId: number, storeId: number, data: PurchaseStoreItemAddParams) {
  return createAxios<{ id: number }>({
    url: `/purchase/order/${purchaseId}/store/${storeId}/item`,
    method: 'post',
    data,
  });
}

/** 门店购买详情：修改单品（数量/称重/单价；同商品多笔订单明细时合并到最早一条） */
export async function updatePurchaseStoreItem(
  purchaseId: number,
  storeId: number,
  productId: number,
  data: PurchaseStoreItemUpdateParams,
) {
  return createAxios({
    url: `/purchase/order/${purchaseId}/store/${storeId}/item/${productId}`,
    method: 'put',
    data,
  });
}

/** 门店购买详情：移除单品 */
export async function removePurchaseStoreItem(purchaseId: number, storeId: number, productId: number) {
  return createAxios({
    url: `/purchase/order/${purchaseId}/store/${storeId}/item/${productId}`,
    method: 'delete',
  });
}

/** 导出采购单商品明细（系统全部商品行，支持按供应商筛选） */
export async function exportPurchase(id: number, supplierId?: number) {
  return downloadBlob(
    `/purchase/order/${id}/export`,
    supplierId ? { supplier_id: supplierId } : {},
    `采购单_${id}.xlsx`,
  );
}

/** 导出门店购买详情（多工作表；storeId 单门店导出） */
export async function exportPurchaseStores(id: number, storeId?: number) {
  return downloadBlob(
    `/purchase/order/${id}/exportStores`,
    storeId ? { store_id: storeId } : {},
    `门店购买详情_${id}.xlsx`,
  );
}

/** 导出供应商采购明细（多工作表；supplierId 单供应商导出） */
export async function exportPurchaseSuppliers(id: number, supplierId?: number) {
  return downloadBlob(
    `/purchase/order/${id}/exportSuppliers`,
    supplierId ? { supplier_id: supplierId } : {},
    `供应商采购明细_${id}.xlsx`,
  );
}