feat: Implement notifications section

app/src/main/java/com/eventyay/organizer/common/di/module/ApiModule.java

@@ -7,6 +7,7 @@
 import com.eventyay.organizer.data.image.ImageUploadApi;
 import com.eventyay.organizer.data.faq.FaqApi;
 import com.eventyay.organizer.data.feedback.FeedbackApi;
+import com.eventyay.organizer.data.notification.NotificationApi;
 import com.eventyay.organizer.data.order.OrderApi;
 import com.eventyay.organizer.data.roles.RoleApi;
 import com.eventyay.organizer.data.session.SessionApi;
@@ -121,4 +122,10 @@ ImageUploadApi providesImageUploadApi(Retrofit retrofit) {
     RoleApi providesRoleApi(Retrofit retrofit) {
         return retrofit.create(RoleApi.class);
     }
+
+    @Provides
+    @Singleton
+    NotificationApi providesNotificationApi(Retrofit retrofit) {
+        return retrofit.create(NotificationApi.class);
+    }
 }

app/src/main/java/com/eventyay/organizer/common/di/module/ChangeListenerModule.java

@@ -6,6 +6,7 @@
 import com.eventyay.organizer.data.db.DbFlowDatabaseChangeListener;
 import com.eventyay.organizer.data.event.Event;
 import com.eventyay.organizer.data.faq.Faq;
+import com.eventyay.organizer.data.notification.Notification;
 import com.eventyay.organizer.data.session.Session;
 import com.eventyay.organizer.data.speaker.Speaker;
 import com.eventyay.organizer.data.speakerscall.SpeakersCall;
@@ -68,4 +69,9 @@ DatabaseChangeListener<SpeakersCall> providesSpeakerCallChangeListener() {
     DatabaseChangeListener<Event> providesEventChangeListener() {
         return new DbFlowDatabaseChangeListener<>(Event.class);
     }
+
+    @Provides
+    DatabaseChangeListener<Notification> providesNotificationsChangeListener() {
+        return new DbFlowDatabaseChangeListener<>(Notification.class);
+    }
 }

app/src/main/java/com/eventyay/organizer/common/di/module/NetworkModule.java

@@ -10,6 +10,7 @@
 import com.eventyay.organizer.data.faq.Faq;
 import com.eventyay.organizer.data.feedback.Feedback;
 import com.eventyay.organizer.data.network.HostSelectionInterceptor;
+import com.eventyay.organizer.data.notification.Notification;
 import com.eventyay.organizer.data.order.Order;
 import com.eventyay.organizer.data.order.OrderStatistics;
 import com.eventyay.organizer.data.roles.Role;
@@ -67,7 +68,7 @@ Class[] providesMappedClasses() {
         return new Class[]{Event.class, Attendee.class, Ticket.class, User.class, EventStatistics.class,
             Faq.class, Copyright.class, Feedback.class, Track.class, Session.class, Sponsor.class,
             Speaker.class, SpeakersCall.class, Order.class, OrderStatistics.class, OnSiteTicket.class,
-            RoleInvite.class, Role.class};
+            RoleInvite.class, Role.class, Notification.class};
     }
 
     @Provides

app/src/main/java/com/eventyay/organizer/common/di/module/RepoModule.java

@@ -12,6 +12,8 @@
 import com.eventyay.organizer.data.faq.FaqRepositoryImpl;
 import com.eventyay.organizer.data.feedback.FeedbackRepository;
 import com.eventyay.organizer.data.feedback.FeedbackRepositoryImpl;
+import com.eventyay.organizer.data.notification.NotificationRepository;
+import com.eventyay.organizer.data.notification.NotificationRepositoryImpl;
 import com.eventyay.organizer.data.order.OrderRepository;
 import com.eventyay.organizer.data.order.OrderRepositoryImpl;
 import com.eventyay.organizer.data.roles.RoleRepository;
@@ -99,4 +101,7 @@ public abstract class RepoModule {
     @Singleton
     abstract RoleRepository bindsRoleRepository(RoleRepositoryImpl roleRepository);
 
+    @Binds
+    @Singleton
+    abstract NotificationRepository bindsNotificationRepository(NotificationRepositoryImpl notificationRepository);
 }

app/src/main/java/com/eventyay/organizer/common/di/module/ViewModelModule.java

@@ -20,6 +20,7 @@
 import com.eventyay.organizer.core.feedback.list.FeedbackListViewModel;
 import com.eventyay.organizer.core.main.EventViewModel;
 import com.eventyay.organizer.core.main.OrganizerViewModel;
+import com.eventyay.organizer.core.notification.list.NotificationsViewModel;
 import com.eventyay.organizer.core.orders.create.CreateOrderViewModel;
 import com.eventyay.organizer.core.orders.detail.OrderDetailViewModel;
 import com.eventyay.organizer.core.orders.list.OrdersViewModel;
@@ -210,6 +211,11 @@ public abstract class ViewModelModule {
     @ViewModelKey(RoleInviteViewModel.class)
     public abstract ViewModel bindRoleInvitesViewModel(RoleInviteViewModel roleInviteViewModel);
 
+    @Binds
+    @IntoMap
+    @ViewModelKey(NotificationsViewModel.class)
+    public abstract ViewModel bindNotificationsViewModel(NotificationsViewModel notificationsViewModel);
+
     @Binds
     public abstract ViewModelProvider.Factory bindViewModelFactory(OrgaViewModelFactory factory);
 

app/src/main/java/com/eventyay/organizer/common/di/module/android/MainFragmentBuildersModule.java

@@ -10,6 +10,7 @@
 import com.eventyay.organizer.core.faq.create.CreateFaqFragment;
 import com.eventyay.organizer.core.faq.list.FaqListFragment;
 import com.eventyay.organizer.core.feedback.list.FeedbackListFragment;
+import com.eventyay.organizer.core.notification.list.NotificationsFragment;
 import com.eventyay.organizer.core.orders.detail.OrderDetailFragment;
 import com.eventyay.organizer.core.orders.list.OrdersFragment;
 import com.eventyay.organizer.core.roleinvite.RoleInviteFragment;
@@ -125,5 +126,10 @@ public abstract class MainFragmentBuildersModule {
     // Share
     @ContributesAndroidInjector
     abstract ShareEventFragment contributeShareEventFragment();
+
+    // Notification
+
+    @ContributesAndroidInjector
+    abstract NotificationsFragment contributeNotificationsFragment();
 }
 

app/src/main/java/com/eventyay/organizer/core/event/list/EventListFragment.java

@@ -21,6 +21,7 @@
 import com.eventyay.organizer.common.mvp.view.BaseFragment;
 import com.eventyay.organizer.core.event.create.CreateEventActivity;
 import com.eventyay.organizer.core.event.list.pager.ListPageFragment;
+import com.eventyay.organizer.core.notification.list.NotificationsFragment;
 import com.eventyay.organizer.data.ContextUtils;
 import com.eventyay.organizer.databinding.EventListFragmentBinding;
 import com.eventyay.organizer.ui.ViewUtils;
@@ -116,6 +117,14 @@ public void openCreateEventFragment() {
         startActivity(intent);
     }
 
+    public void openNotificationsFragment() {
+
+        getFragmentManager().beginTransaction()
+            .replace(R.id.fragment_container, NotificationsFragment.newInstance())
+            .addToBackStack(null)
+            .commit();
+    }
+
     @Override
     public void onStop() {
         super.onStop();
@@ -146,6 +155,9 @@ public boolean onOptionsItemSelected(MenuItem item) {
             case R.id.sortByEventDate:
                 eventsViewModel.sortBy(SORTBYDATE);
                 return true;
+            case R.id.notifications:
+                openNotificationsFragment();
+                return true;
             default:
                 return super.onOptionsItemSelected(item);
         }

app/src/main/java/com/eventyay/organizer/core/notification/list/NotificationsAdapter.java

@@ -0,0 +1,44 @@
+package com.eventyay.organizer.core.notification.list;
+
+import android.view.LayoutInflater;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.databinding.DataBindingUtil;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.eventyay.organizer.R;
+import com.eventyay.organizer.core.notification.list.viewholder.NotificationsViewHolder;
+import com.eventyay.organizer.data.notification.Notification;
+
+import java.util.List;
+
+public class NotificationsAdapter extends RecyclerView.Adapter<NotificationsViewHolder> {
+
+    public final List<Notification> notifications;
+
+    public NotificationsAdapter(NotificationsViewModel notificationsViewModel) {
+        this.notifications = notificationsViewModel.getNotifications();
+    }
+
+    @NonNull
+    @Override
+    public NotificationsViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int position) {
+        NotificationsViewHolder notificationsViewHolder= new NotificationsViewHolder(
+            DataBindingUtil.inflate(LayoutInflater.from(viewGroup.getContext()),
+                R.layout.notification_item, viewGroup, false));
+
+        return notificationsViewHolder;
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull NotificationsViewHolder notificationsViewHolder, int position) {
+        notificationsViewHolder.bind(notifications.get(position));
+    }
+
+    @Override
+    public int getItemCount() {
+        return notifications.size();
+    }
+
+}

app/src/main/java/com/eventyay/organizer/core/notification/list/NotificationsFragment.java

@@ -0,0 +1,144 @@
+package com.eventyay.organizer.core.notification.list;
+
+import android.content.Context;
+import android.os.Bundle;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.databinding.DataBindingUtil;
+import androidx.lifecycle.ViewModelProvider;
+import androidx.lifecycle.ViewModelProviders;
+import androidx.recyclerview.widget.DefaultItemAnimator;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.eventyay.organizer.R;
+import com.eventyay.organizer.common.mvp.view.BaseFragment;
+import com.eventyay.organizer.data.notification.Notification;
+import com.eventyay.organizer.databinding.NotificationsFragmentBinding;
+import com.eventyay.organizer.ui.ViewUtils;
+
+import java.util.List;
+
+import javax.inject.Inject;
+
+public class NotificationsFragment extends BaseFragment implements NotificationsView {
+
+    private Context context;
+
+    @Inject
+    ViewModelProvider.Factory viewModelFactory;
+
+    private NotificationsAdapter notificationsAdapter;
+    private NotificationsFragmentBinding binding;
+    private SwipeRefreshLayout refreshLayout;
+
+    private NotificationsViewModel notificationsViewModel;
+
+    public static NotificationsFragment newInstance() {
+        return new NotificationsFragment();
+    }
+
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        context = getContext();
+    }
+
+    @Nullable
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+        binding = DataBindingUtil.inflate(inflater, R.layout.notifications_fragment, container, false);
+        notificationsViewModel = ViewModelProviders.of(this, viewModelFactory).get(NotificationsViewModel.class);
+
+        return binding.getRoot();
+    }
+
+    @Override
+    public void onStart() {
+        super.onStart();
+        setupRecyclerView();
+        setupRefreshListener();
+        notificationsViewModel.getProgress().observe(this, this::showProgress);
+        notificationsViewModel.getSuccess().observe(this, this::showMessage);
+        notificationsViewModel.getError().observe(this, this::showError);
+        notificationsViewModel.getNotificationsLiveData().observe(this, this::showResults);
+        notificationsViewModel.loadNotifications(false);
+        notificationsViewModel.listenChanges();
+    }
+
+    @Override
+    protected int getTitle() {
+        return R.string.notifications;
+    }
+
+    @Override
+    public void onStop() {
+        super.onStop();
+        refreshLayout.setOnRefreshListener(null);
+        notificationsViewModel.getNotificationsChangeListener().stopListening();
+    }
+
+    private void setupRecyclerView() {
+
+        notificationsAdapter = new NotificationsAdapter(notificationsViewModel);
+
+        RecyclerView recyclerView = binding.notificationsRecyclerView;
+        recyclerView.setLayoutManager(new LinearLayoutManager(context));
+        recyclerView.setAdapter(notificationsAdapter);
+        recyclerView.setItemAnimator(new DefaultItemAnimator());
+    }
+
+
+    private void setupRefreshListener() {
+        refreshLayout = binding.swipeContainer;
+        refreshLayout.setColorSchemeColors(getResources().getColor(R.color.color_accent));
+        refreshLayout.setOnRefreshListener(() -> {
+            refreshLayout.setRefreshing(false);
+            notificationsViewModel.loadNotifications(true);
+        });
+    }
+
+    @Override
+    public void showError(String error) {
+        ViewUtils.showSnackbar(binding.getRoot(), error);
+    }
+
+    @Override
+    public void showProgress(boolean show) {
+        ViewUtils.showView(binding.progressBar, show);
+    }
+
+    @Override
+    public void onRefreshComplete(boolean success) {
+        refreshLayout.setRefreshing(false);
+        if (success)
+            ViewUtils.showSnackbar(binding.notificationsRecyclerView, R.string.refresh_complete);
+    }
+
+    private void showMessage(String message) {
+        ViewUtils.showSnackbar(binding.getRoot(), message);
+    }
+
+    @Override
+    public void showResults(List<Notification> notifications) {
+        if(notifications.isEmpty()) {
+            showEmptyView(true);
+            return;
+        } else {
+            showEmptyView(false);
+        }
+        notificationsAdapter.notifyDataSetChanged();
+    }
+
+    @Override
+    public void showEmptyView(boolean show) {
+        ViewUtils.showView(binding.emptyView, show);
+    }
+}

app/src/main/java/com/eventyay/organizer/core/notification/list/NotificationsView.java

@@ -0,0 +1,18 @@
+package com.eventyay.organizer.core.notification.list;
+
+import com.eventyay.organizer.data.notification.Notification;
+
+import java.util.List;
+
+public interface NotificationsView {
+
+    void showError(String error);
+
+    void showProgress(boolean show);
+
+    void onRefreshComplete(boolean success);
+
+    void showResults(List<Notification> notifications);
+
+    void showEmptyView(boolean show);
+}