import { useEffect } from 'react';
import { FamilyMemberHistory } from 'fhir/r4';
import { usePatientServiceContext, useWebSocketServiceContext } from '../services';

interface UseFamilyMemberHistoryWebSocketOptions {
    familyMemberHistory?: FamilyMemberHistory;
    familyHistoryId?: string;
    isOpen?: boolean;
    onUpdate: (familyMemberHistory: FamilyMemberHistory) => void;
    onDelete: () => void;
}

export const useFhirFamilyMemberHistoryTargetedBroadcast = ({
                                                                familyMemberHistory,
                                                                familyHistoryId,
                                                                isOpen = true,
                                                                onUpdate,
                                                                onDelete
                                                            }: UseFamilyMemberHistoryWebSocketOptions) => {
    const { subscribe, unsubscribe } = useWebSocketServiceContext();
    const { patientState } = usePatientServiceContext();

    useEffect(() => {
        if (!patientState || !familyMemberHistory || !isOpen) {
            return;
        }

        const handleFamilyMemberHistoryEvent = (cloudEvent: any) => {
            const familyMemberHistoryPayload: FamilyMemberHistory = cloudEvent.data;
            const eventType = cloudEvent.type;
            const targetId = familyHistoryId || familyMemberHistory.id;

            if (familyMemberHistoryPayload.id === targetId) {
                switch (eventType) {
                    case 'com.akashichealthrecords.fhir.familymemberhistory.updated':
                        onUpdate(familyMemberHistoryPayload);
                        break;
                    case 'com.akashichealthrecords.fhir.familymemberhistory.deleted':
                        onDelete();
                        break;
                }
            }
        };

        subscribe('com.akashichealthrecords.fhir.familymemberhistory.updated', handleFamilyMemberHistoryEvent);
        subscribe('com.akashichealthrecords.fhir.familymemberhistory.deleted', handleFamilyMemberHistoryEvent);

        return () => {
            unsubscribe('com.akashichealthrecords.fhir.familymemberhistory.updated', handleFamilyMemberHistoryEvent);
            unsubscribe('com.akashichealthrecords.fhir.familymemberhistory.deleted', handleFamilyMemberHistoryEvent);
        };
    }, [patientState, familyMemberHistory, familyHistoryId, isOpen, onUpdate, onDelete, subscribe, unsubscribe]);
};