How do I filter data in different categories [SOLVED]

JavaScript
2

Ok, I think I got it, but need to do some thorough tests :slight_smile: Here is what I came up with:

 /**
 * Filter list of ABLIS services with a given list of filters.
 *
 * Notes:
 * - A serviceSearcher is the "category" to filter by (ie) Topic, Level, Type, Agency
 * - When selecting multiple filters across "cateogies", the filter uses an AND condition.
 * - When selecting multiple filters inside a serviceSearcher, the filter uses an OR condition.
 *
 * @param services List of ABLIS Service records
 * @param filters List of Filter definition
 */
export function filterServices(services: Service[], filters: ServiceFilterItem[]): Service[] {
  // 1. Strict filter match across multiple cateogory selections
  const strictMatch = services.filter((service: Service) => {
    const flattenedFilters = new Set(filters.map((filter) => filter.searchTerm));
    // loop through category items to create an AND condition (intersection using the searchPath)
    const match = filters.every((path) => {
      // for every search path check all services from lazy filter search
      const values: string[] = JSONPath({
        path: path.serviceSearcher,
        json: service,
      });
      // check if any of the checked filter values for each category are shared
      return flattenedFilters.has(values[0]);
    });

    return match;
  });

  return strictMatch;
}