WIP implementing MVVM

2021-09-21 09:25:28 +02:00
parent cf7f96efad
commit 8b7e89f43b
8 changed files with 254 additions and 104 deletions
@@ -1,5 +1,7 @@
 package it.danieleverducci.nextcloudmaps.repository;

+import android.util.Log;
+
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.lifecycle.MutableLiveData;
@@ -19,7 +21,8 @@ import retrofit2.Response;
 public class GeofavoriteRepository {

    private static GeofavoriteRepository instance;
-    private ArrayList<Geofavorite> dataSet = new ArrayList<>();
+    private MutableLiveData<List<Geofavorite>> mGeofavorites;
+    private OnFinished listener;

    public static GeofavoriteRepository getInstance() {
        if(instance == null){
@@ -29,13 +32,23 @@ public class GeofavoriteRepository {
    }

    public MutableLiveData<List<Geofavorite>> getGeofavorites(){
+        if (mGeofavorites == null) {
+            mGeofavorites = new MutableLiveData<>();
+            mGeofavorites.setValue(new ArrayList<>());
+        }
+        return mGeofavorites;
+    }
+
+    public void updateGeofavorites() {
+        if (listener != null) listener.onLoading();
        // Obtain geofavorites
        Call<List<Geofavorite>> call = ApiProvider.getAPI().getGeofavorites();
        call.enqueue(new Callback<List<Geofavorite>>() {
            @Override
            public void onResponse(@NonNull Call<List<Geofavorite>> call, @NonNull Response<List<Geofavorite>> response) {
                if (response.isSuccessful() && response.body() != null) {
-                    dataSet.addAll(response.body());
+                    mGeofavorites.postValue(response.body());
+                    if (listener != null) listener.onSuccess();
                } else {
                    onFailure(call, new Throwable("Dataset is empty"));
                }
@@ -43,13 +56,83 @@ public class GeofavoriteRepository {

            @Override
            public void onFailure(@NonNull Call<List<Geofavorite>> call, @NonNull Throwable t) {
-                // TODO
+                if (listener != null) listener.onFailure();
            }
        });
+    }

-        MutableLiveData<List<Geofavorite>> data = new MutableLiveData<>();
-        data.setValue(dataSet);
-        return data;
+    public Geofavorite getGeofavorite(int id) {
+        for (Geofavorite g : mGeofavorites.getValue()) {
+            if (g.getId() == id)
+                return g;
+        }
+        return null;
+    }
+
+    public void saveGeofavorite(Geofavorite geofav) {
+        Call<Geofavorite> call;
+        if (geofav.getId() == 0) {
+            // New geofavorite
+            call = ApiProvider.getAPI().createGeofavorite(geofav);
+        } else {
+            // Update existing geofavorite
+            call = ApiProvider.getAPI().updateGeofavorite(geofav.getId(), geofav);
+        }
+        call.enqueue(new Callback<Geofavorite>() {
+            @Override
+            public void onResponse(Call<Geofavorite> call, Response<Geofavorite> response) {
+                if (response.isSuccessful()) {
+                    List<Geofavorite> geofavs = mGeofavorites.getValue();
+                    if (geofav.getId() != 0) {
+                        geofavs.remove(geofav);
+                    }
+                    geofavs.add(geofav);
+                    mGeofavorites.postValue(geofavs);
+                    if (listener != null) listener.onSuccess();
+                } else if (listener != null) {
+                    listener.onFailure();
+                }
+            }
+
+            @Override
+            public void onFailure(Call<Geofavorite> call, Throwable t) {
+                if (listener != null) listener.onFailure();
+            }
+        });
+    }
+
+    public void deleteGeofavorite(Geofavorite geofav) {
+        if (listener != null) listener.onLoading();
+        // Delete Geofavorite
+        Call<Geofavorite> call = ApiProvider.getAPI().deleteGeofavorite(geofav.getId());
+        call.enqueue(new Callback<Geofavorite>() {
+            @Override
+            public void onResponse(Call<Geofavorite> call, Response<Geofavorite> response) {
+                List<Geofavorite> geofavs = mGeofavorites.getValue();
+                if (geofavs.remove(geofav)) {
+                    mGeofavorites.postValue(geofavs);
+                    if (listener != null) listener.onSuccess();
+                } else {
+                    // Should never happen
+                    if (listener != null) listener.onFailure();
+                }
+            }
+
+            @Override
+            public void onFailure(Call<Geofavorite> call, Throwable t) {
+                if (listener != null) listener.onFailure();
+            }
+        });
+    }
+
+    public void setOnFinishedListener(OnFinished listener) {
+        this.listener = listener;
+    }
+
+    public interface OnFinished {
+        void onLoading();
+        void onSuccess();
+        void onFailure();
    }