import { rpcOrNull, rpcOrValue } from '@/services/analytics/rpc.uts'

export type AdminProduct = {
  id: string
  name: string
  image: string
  price: number
  stock: number
  sales: number
  status: number
  created_at: string
  category_name: string
}

export type ProductPageResult = {
  total: number
  items: Array<AdminProduct>
}

/**
 * 分页获取商品列表
 */
export async function fetchAdminProductPage(
  page: number,
  pageSize: number,
  filters: {
    name?: string,
    status?: number,
    categoryId?: string
  }
): Promise<ProductPageResult> {
  const res = await rpcOrNull('rpc_admin_product_list', {
    p_page: page,
    p_page_size: pageSize,
    p_name: filters.name ?? null,
    p_status: filters.status ?? null,
    p_category_id: filters.categoryId ?? null
  } as UTSJSONObject)

  if (res == null) {
    return { total: 0, items: [] as Array<AdminProduct> }
  }

  const anyTotal = (res as any).total
  const anyItems = (res as any).items

  return {
    total: typeof anyTotal === 'number' ? anyTotal : 0,
    items: Array.isArray(anyItems) ? anyItems : [] as Array<AdminProduct>
  }
}

/**
 * 获取商品状态汇总统计
 */
export async function fetchAdminProductCountStats() : Promise<UTSJSONObject | null> {
  return await rpcOrNull('rpc_admin_product_count_stats', {} as UTSJSONObject)
}

/**
 * 获取商品概况统计指标
 */
export async function fetchAdminProductStats(startTime : string, endTime : string) : Promise<UTSJSONObject | null> {
  return await rpcOrNull('rpc_admin_product_stats', {
    p_start_time: startTime,
    p_end_time: endTime
  } as UTSJSONObject)
}

/**
 * 获取商品营业趋势数据
 */
export async function fetchAdminProductTrend(startTime : string, endTime : string) : Promise<Array<UTSJSONObject>> {
  const res = await rpcOrValue('rpc_admin_product_trend', {
    p_start_time: startTime,
    p_end_time: endTime
  } as UTSJSONObject)
  return Array.isArray(res) ? (res as Array<UTSJSONObject>) : [] as Array<UTSJSONObject>
}

/**
 * 获取商品排行
 */
export async function fetchAdminProductRanking(startTime : string, endTime : string, sortBy : string = 'sales', limit : number = 10) : Promise<Array<UTSJSONObject>> {
  const res = await rpcOrValue('rpc_admin_product_ranking', {
    p_start_time: startTime,
    p_end_time: endTime,
    p_sort_by: sortBy,
    p_limit: limit
  } as UTSJSONObject)
  return Array.isArray(res) ? (res as Array<UTSJSONObject>) : [] as Array<UTSJSONObject>
}

/**
 * 更新商品状态 (上架/下架/回收站)
 * @param status 1:上架 2:下架 3:草稿 4:删除
 */
export async function updateAdminProductStatus(productId: string, status: number): Promise<boolean> {
  try {
    const ok = await rpcOrValue('rpc_admin_product_update_status', {
      p_product_id: productId,
      p_status: status
    } as UTSJSONObject)
    return ok === true
  } catch (e: any) {
    console.error('更新商品状态失败:', e)
    return false
  }
}