import type {
  RequestQueryBuilder,
  QuerySort,
  QuerySortArr,
  QuerySortOperator,
} from "@nestjsx/crud-request";
import type { CrudSorting } from "@refinedev/core";

export type SortBy = QuerySort | QuerySortArr | Array<QuerySort | QuerySortArr>;

export const generateSort = (sort?: CrudSorting): SortBy | undefined => {
  if (sort && sort.length > 0) {
    const multipleSort: SortBy = [];
    sort.map(({ field, order }) => {
      if (field && order) {
        multipleSort.push({
          field: field,
          order: order.toUpperCase() as QuerySortOperator,
        });
      }
    });
    return multipleSort;
  }

  return;
};

export const handleSort = (
  query: RequestQueryBuilder,
  sorters?: CrudSorting,
) => {
  const sortBy = generateSort(sorters);
  if (sortBy) {
    query.sortBy(sortBy);
  }

  return query;
};