import useSWR from 'swr';
import { fhirBaseUrl, openmrsFetch } from '@openmrs/esm-framework';
import { type LocationResponse, type SimpleLocation } from '../types';
import { type PharmacyConfig } from '../config-schema';

export function useLocationForFiltering(config: PharmacyConfig) {
  const { data, error } = useSWR<{ data: LocationResponse }, Error>(
    `${fhirBaseUrl}/Location?_tag=${encodeURIComponent(config.locationBehavior.locationFilter.tag)}&_count=100`,
    openmrsFetch,
  );

  // parse down to a simple representation of locations
  const filterLocations: Array<SimpleLocation> = data?.data?.entry
    ?.map((e) => ({
      id: e.resource.id,
      name: e.resource.name,
    }))
    .sort((a, b) => a.name.localeCompare(b.name));

  return {
    filterLocations,
    error,
    isLoading: !filterLocations && !error,
  };
}