EventsFragment

package com.dss.invitup.vc.occasionPage.event;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import com.dss.invitup.MainActivity;
import com.dss.invitup.R;
import com.dss.invitup.adapters.EventAdapter;
import com.dss.invitup.events.GetSubOccasionFromOccasionFinishedEvent;
import com.dss.invitup.events.MainActivityHideLoadingEvent;
import com.dss.invitup.events.ReturnToEventFragmentEvent;
import com.dss.invitup.models.Occasion;
import com.dss.invitup.models.SubOccasion;
import com.dss.invitup.models.serverResponses.SubOccasionsResponse;
import com.dss.invitup.singleton.AppController;
import com.dss.invitup.singleton.InterfaceManager;
import com.dss.invitup.singleton.ServerManager;
import com.dss.invitup.singleton.SettingsManager;
import de.greenrobot.event.EventBus;
import io.realm.Realm;
import io.realm.RealmList;
/**
 * Copyright © 2016 Dihardja Software Solutions. All rights reserved.
 */
public class EventsFragment extends Fragment {
    RecyclerView recyclerView;
    LinearLayoutManager linearLayoutManager;
    EventAdapter eventAdapter;
    Realm realm;
    Occasion currentOccasion;
    FrameLayout rootFrameLayout;
    RealmList<SubOccasion> subOccasionRealmList = new RealmList<>();
    boolean isHasLocalData = false;
    String currentOccasionId;
    MainActivity mainActivity;
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_occasion_events, container, false);
        if(!EventBus.getDefault().isRegistered(this)){
            EventBus.getDefault().register(this);
        }
        rootFrameLayout = (FrameLayout)view.findViewById(R.id.eventFragmentRootFrameLayout);
        recyclerView = (RecyclerView) view.findViewById(R.id.eventOccasionDetail);
        mainActivity = (MainActivity) getActivity();
        return view;
    }
    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        mainActivity.position = 0;
        linearLayoutManager = new LinearLayoutManager(getActivity());
        linearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);
        realm = AppController.getInstance().getRealm();
        eventAdapter = new EventAdapter(getActivity());
        recyclerView.setHasFixedSize(true);
        recyclerView.setLayoutManager(linearLayoutManager);
        recyclerView.setAdapter(eventAdapter);
    }
    @Override
    public void onResume() {
        super.onResume();
        if(mainActivity.isFromPushNotif){
            currentOccasionId = mainActivity.currentOccasionId;
            Occasion theOccasion = realm.where(Occasion.class).equalTo("id", currentOccasionId).findFirst();
            if(theOccasion!=null){
                currentOccasion = theOccasion;
                SettingsManager.getInstance().setCurrentOccasion(currentOccasion);
            }
        }else{
            if(SettingsManager.getInstance().getCurrentOccasion()!=null){
                currentOccasion = SettingsManager.getInstance().getCurrentOccasion();
                currentOccasionId = currentOccasion.getId();
            }
        }
        reloadLocalData();
    }
    public void reloadLocalData(){
        if(currentOccasionId!=null){
            SubOccasionsResponse subOccasionsResponse = realm.where(SubOccasionsResponse.class)
                    .equalTo("id", currentOccasionId).findFirst();
            if(subOccasionRealmList.size()!=0){
                isHasLocalData = true;
                subOccasionRealmList = subOccasionsResponse.getSubOccasionRealmList();
                if(currentOccasion!=null){
                    eventAdapter.updateAdapter(currentOccasion, subOccasionRealmList);
                }
            }else{
                isHasLocalData = false;
            }
        }
        ServerManager.getInstance().getSubOccasionFromOccasion(currentOccasionId);
    }
    public void onEvent(GetSubOccasionFromOccasionFinishedEvent event){
        if(event.subOccasionsResponse!=null){
            subOccasionRealmList = event.subOccasionsResponse.getSubOccasionRealmList();
            if(currentOccasion!=null) {
                eventAdapter.updateAdapter(currentOccasion, subOccasionRealmList);
            }
        }else{
            if(isHasLocalData){
                InterfaceManager.sharedInstance().showErrorMessage(getActivity(), event.errorMessage);
            }else{
                InterfaceManager.sharedInstance().showErrorMessageForNoLocalData(getActivity(), event.errorMessage);
            }
        }
    }
    public void onEvent(ReturnToEventFragmentEvent event){
        EventBus.getDefault().post(new MainActivityHideLoadingEvent());
        ServerManager.getInstance().getSubOccasionFromOccasion(currentOccasionId);
    }
}