import { useAuthServiceContext } from '../../../services/AuthService';
import { useFhirLocations } from '../../../hooks/useFhirLocations';
import { readPhysicalRooming, usesPhysicalRooming } from '../../../utils/practiceRooming';

/**
 * Whether this practice rooms patients: its own answer, or unset, whether it has any rooms. Undefined
 * while an unset practice's locations are still being read, so a label can wait rather than flip.
 */
export const usePracticeRoomingAnswer = (): boolean | undefined => usePracticeRoomingRead().answer;

/** The answer, and whether reading the rooms failed, so a waiting label can stop waiting and offer a retry. */
export const usePracticeRoomingRead = (): { answer: boolean | undefined; failed: boolean; retry: () => void } => {
  const { wpOrganization } = useAuthServiceContext();
  const { locationsBundle, locationsList, loading, error, loadLocations } = useFhirLocations();
  const organization = wpOrganization?.current;
  const answer = readPhysicalRooming(organization) === undefined && !locationsBundle
    ? undefined
    : usesPhysicalRooming(organization, locationsList ?? []);
  return {
    answer,
    failed: answer === undefined && Boolean(error) && !loading,
    retry: () => void loadLocations(true),
  };
};

/** The same answer, keeping today's rooming screens until it is known rather than flashing them away. */
export const usePracticeRooming = (): boolean => usePracticeRoomingAnswer() ?? true;