import { Pipe, PipeTransform } from '@angular/core';

@Pipe({ name: 'searchFilter' })
export class FilterPipe implements PipeTransform {
  /**
   * Pipe filters the list of elements based on the search text provided
   *
   * @param items list of elements to search in
   * @param searchText search string
   * @returns list of elements filtered by search text or []
   */

  transform(items: any[], searchText: string): any[] {
    if (!items) return [];
    if (!searchText) return items;

    searchText = searchText.trim().toLocaleLowerCase();

    return items.filter(obj => {
      return Object.keys(obj).reduce((acc, curr) => {
          return acc || JSON.stringify(obj[curr]).toLowerCase().includes(searchText);
      }, false);
    });
  }
}