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package gov.hhs.fha.nhinc.subscription.dte;

import gov.hhs.fha.nhinc.common.subscription.CommunityType;
import gov.hhs.fha.nhinc.common.subscription.CriteriaType;
import gov.hhs.fha.nhinc.common.subscription.SubscribeeType;
import gov.hhs.fha.nhinc.common.subscription.SubscriberType;
import gov.hhs.fha.nhinc.common.subscription.SubscriptionCriteriaType;
import gov.hhs.fha.nhinc.common.subscription.SubscriptionItemType;
import gov.hhs.fha.nhinc.nhinclib.NullChecker;
import gov.hhs.fha.nhinc.subscription.*;
import gov.hhs.fha.nhinc.common.subscriptiondte.CreateChildSubscriptionItemRequestType;
import gov.hhs.fha.nhinc.common.nhinccommon.QualifiedSubjectIdentifierType;
import gov.hhs.fha.nhinc.common.subscriptiondte.CreateChildSubscriptionItemResponseType;

/**
 *
 * @author rayj
 */
public class CreateChildSubscriptionItemHelper {

    public static CreateChildSubscriptionItemResponseType createChildSubscriptionItem(CreateChildSubscriptionItemRequestType createChildSubscriptionInput) {
        CreateChildSubscriptionItemResponseType response = new CreateChildSubscriptionItemResponseType();
        SubscriptionItemType subscriptionItem = new SubscriptionItemType();

        SubscriptionItemType parentSubscriptionItem = createChildSubscriptionInput.getParentSubscriptionItem();

        subscriptionItem.setSubscriber(new SubscriberType());
        subscriptionItem.getSubscriber().setCommunity(Configuration.getMyCommunity());
        subscriptionItem.getSubscriber().setNotificationConsumerEndpointAddress(Configuration.getlocalNotificationConsumerEndpointAddress());

        subscriptionItem.setSubscribee(new SubscribeeType());

        String userAddress = getUserAddress(parentSubscriptionItem);
        if (NullChecker.isNotNullish(userAddress)) {
            subscriptionItem.getSubscribee().setUserAddress(userAddress);
        }

        String targetCommunityId = createChildSubscriptionInput.getTargetCommunityId();
        if (NullChecker.isNotNullish(targetCommunityId)) {
            subscriptionItem.getSubscribee().setCommunity(new CommunityType());
            subscriptionItem.getSubscribee().getCommunity().setId(targetCommunityId);
        }

        SubscriptionCriteriaType subscriptionCriteria = new SubscriptionCriteriaType();
        subscriptionItem.setSubscriptionCriteria(subscriptionCriteria);

        QualifiedSubjectIdentifierType subscribeePatient = createChildSubscriptionInput.getTargetPatientId();
        if (subscribeePatient != null) {
            subscriptionCriteria.setSubscribeePatient(subscribeePatient);
        }

        QualifiedSubjectIdentifierType subscriberPatient = getSubscriptionCriteriaSubscriberPatient(parentSubscriptionItem);
        subscriptionCriteria.setSubscriberPatient(subscriberPatient);

        CriteriaType miscCriteria = getSubscriptionMiscCriteria(parentSubscriptionItem);
        subscriptionCriteria.setCriteria(miscCriteria);

        subscriptionCriteria.setTopicExpression(parentSubscriptionItem.getSubscriptionCriteria().getTopicExpression());
        subscriptionCriteria.setSubscriptionPolicy(parentSubscriptionItem.getSubscriptionCriteria().getSubscriptionPolicy());

        subscriptionItem.setSubscriptionReference(null);

        subscriptionItem.setParentSubscriptionReference(parentSubscriptionItem.getSubscriptionReference());

        response.setSubscriptionItem(subscriptionItem);
        return response;
    }

    private static CriteriaType getSubscriptionMiscCriteria(SubscriptionItemType subscriptionItem) {
        CriteriaType miscCriteria = null;
        if ((subscriptionItem != null) && (subscriptionItem.getSubscriptionCriteria() != null)) {
            miscCriteria = subscriptionItem.getSubscriptionCriteria().getCriteria();
        }
        return miscCriteria;
    }

    private static QualifiedSubjectIdentifierType getSubscriptionCriteriaSubscriberPatient(SubscriptionItemType subscriptionItem) {
        QualifiedSubjectIdentifierType patient = null;
        if ((subscriptionItem != null) && (subscriptionItem.getSubscriptionCriteria() != null) && (subscriptionItem.getSubscriptionCriteria().getSubscriberPatient() != null)) {
            patient = subscriptionItem.getSubscriptionCriteria().getSubscriberPatient();
        }
        return patient;
    }
    
    private static String getUserAddress(SubscriptionItemType parentSubscriptionItem) {
        String userAddress = null;

        if (parentSubscriptionItem == null) {
            userAddress = null;
        } else if (parentSubscriptionItem.getSubscriber() == null) {
            userAddress = null;
        } else {
            userAddress = parentSubscriptionItem.getSubscriber().getUserAddress();
        }

        return userAddress;
    }
}