import request from '@/utils/request'
import type { ShopGoodsFavorite, ShopGoodsFavoriteParam } from './model'

/**
 * 解包 API 响应
 * request 工具默认 returnRaw=true，返回完整 {code, message, data} 包装
 * 此函数提取内层 data 字段，兼容 data 为 null/undefined 的情况
 */
function unwrap<T>(res: any): T {
  if (res && typeof res === 'object' && 'data' in res) {
    return res.data as T
  }
  return res as T
}

// 添加收藏
export async function addShopGoodsFavorite(data: { goodsId: number }) {
  const res = await request.post('/shop/goods/favorite/add', data)
  return unwrap<boolean>(res)
}

// 取消收藏
export async function removeShopGoodsFavorite(data: { goodsId: number }) {
  const res = await request.post('/shop/goods/favorite/remove', data)
  return unwrap<boolean>(res)
}

// 查询收藏状态（返回 boolean：true=已收藏, false=未收藏）
export async function getShopGoodsFavoriteStatus(params: { goodsId: number }) {
  const res = await request.get('/shop/goods/favorite/status', params)
  return !!unwrap<boolean>(res) // 确保返回纯布尔值
}

// 收藏列表
export async function listShopGoodsFavorite(params: ShopGoodsFavoriteParam) {
  const res = await request.get('/shop/goods/favorite/list', params)
  return unwrap<ShopGoodsFavorite[]>(res) || []
}

// 收藏列表（分页）
export async function pageShopGoodsFavorite(params: ShopGoodsFavoriteParam) {
  const res = await request.get('/shop/goods/favorite/page', params)
  return unwrap<{ list: ShopGoodsFavorite[]; total: number }>(res) || { list: [], total: 0 }
}