feat: 支持主列表选择每页条数 (#242)

admin/service/shopee_list.go

@@ -81,15 +81,21 @@ type ShopeeListResult struct {
 // （repository.CountShopeeProductsFiltered），分页页数据此算出，
 // page 越界时兜到最后一页，见 service/pagination.go（工单 #43）。
 func ListShopeeProducts(db *sql.DB, filter repository.ShopeeFilter, page int) (*ShopeeListResult, error) {
+	return ListShopeeProductsWithPageSize(db, filter, page, DefaultPageSize)
+}
+
+// ListShopeeProductsWithPageSize 按白名单页容量返回蝦皮商品列表。
+func ListShopeeProductsWithPageSize(db *sql.DB, filter repository.ShopeeFilter, page, pageSize int) (*ShopeeListResult, error) {
+	pageSize = NormalizePageSize(pageSize)
 	total, err := repository.CountShopeeProductsFiltered(db, filter)
 	if err != nil {
 		return nil, err
 	}
-	totalPages := TotalPages(total)
+	totalPages := TotalPages(total, pageSize)
 	page = ClampPage(page, totalPages)
-	offset := (page - 1) * PageSize
+	offset := (page - 1) * pageSize
 
-	rows, err := repository.ListShopeeProducts(db, filter, PageSize, offset)
+	rows, err := repository.ListShopeeProducts(db, filter, pageSize, offset)
 	if err != nil {
 		return nil, err
 	}
@@ -105,7 +111,7 @@ func ListShopeeProducts(db *sql.DB, filter repository.ShopeeFilter, page int) (*
 		HasAnyProducts: hasAny > 0,
 		IsFiltered:     strings.TrimSpace(filter.Keyword) != "" || filter.Status != "" || filter.Deleted || filter.Unlinked,
 		Page:           page,
-		PageSize:       PageSize,
+		PageSize:       pageSize,
 		TotalPages:     totalPages,
 	}
 	for _, r := range rows {