Fixes #11: Added local database

app/build.gradle

@@ -1,5 +1,6 @@
 apply plugin: 'com.android.application'
 apply plugin: 'android-apt'
+apply plugin: 'realm-android'
 
 android {
     compileSdkVersion 24

app/src/androidTest/java/org/fossasia/susi/ai/test/MainActivityTest.java

@@ -7,7 +7,7 @@
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 
-import org.fossasia.susi.ai.MainActivity;
+import org.fossasia.susi.ai.activities.MainActivity;
 import org.fossasia.susi.ai.R;
 
 /**

app/src/main/AndroidManifest.xml

@@ -9,15 +9,16 @@
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
+        android:name=".MainApplication"
         android:label="@string/app_name"
         android:theme="@style/AppTheme">
 
         <activity
-            android:name=".MainActivity"
+            android:name=".activities.MainActivity"
             android:label="@string/app_name" />
 
         <activity
-            android:name=".SplashScreen"
+            android:name=".activities.SplashScreen"
             android:theme="@style/AppTheme.NoActionBar">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

app/src/main/java/org/fossasia/susi/ai/MainApplication.java

@@ -0,0 +1,24 @@
+package org.fossasia.susi.ai;
+
+import android.app.Application;
+
+import io.realm.Realm;
+import io.realm.RealmConfiguration;
+
+/**
+ * Created by
+ * --Vatsal Bajpai on
+ * --30/09/16 at
+ * --10:26 PM
+ */
+
+public class MainApplication extends Application {
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        // The Realm file will be located in Context.getFilesDir() with name "default.realm"
+        Realm.init(this);
+        RealmConfiguration config = new RealmConfiguration.Builder().build();
+        Realm.setDefaultConfiguration(config);
+    }
+}

app/src/main/java/org/fossasia/susi/ai/MainActivity.java → app/src/main/java/org/fossasia/susi/ai/activities/MainActivity.java

@@ -1,4 +1,4 @@
-package org.fossasia.susi.ai;
+package org.fossasia.susi.ai.activities;
 
 import android.content.Context;
 import android.net.ConnectivityManager;
@@ -11,6 +11,7 @@
 import android.support.v7.widget.LinearLayoutManager;
 import android.support.v7.widget.RecyclerView;
 import android.text.TextUtils;
+import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
@@ -19,19 +20,21 @@
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 
+import org.fossasia.susi.ai.R;
 import org.fossasia.susi.ai.adapters.recyclerAdapters.ChatFeedRecyclerAdapter;
+import org.fossasia.susi.ai.model.ChatMessage;
 import org.json.JSONException;
 import org.json.JSONObject;
 import org.loklak.android.tools.JsonIO;
 
 import java.io.UnsupportedEncodingException;
 import java.net.URLEncoder;
-import java.util.ArrayList;
-import java.util.List;
 
 import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
+import io.realm.Realm;
+import io.realm.RealmResults;
 
 public class MainActivity extends AppCompatActivity {
 
@@ -49,56 +52,86 @@ public class MainActivity extends AppCompatActivity {
     LinearLayout sendMessageLayout;
 
     private ChatFeedRecyclerAdapter recyclerAdapter;
+    private Realm realm;
 
+    public static String TAG = MainActivity.class.getName();
+    RealmResults<ChatMessage> chatMessageDatabaseList;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+        init();
+    }
 
+    private void init() {
         ButterKnife.bind(this);
+        realm = Realm.getDefaultInstance();
 
         setupAdapter();
     }
 
     private void setupAdapter() {
-
         LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this);
-
         rvChatFeed.setLayoutManager(linearLayoutManager);
         rvChatFeed.setHasFixedSize(true);
-        List<ChatMessage> chatMessageList = new ArrayList<>();
-        recyclerAdapter = new ChatFeedRecyclerAdapter(this, this, chatMessageList);
 
-        rvChatFeed.setAdapter(recyclerAdapter);
+        chatMessageDatabaseList = realm.where(ChatMessage.class).findAll();
+        recyclerAdapter = new ChatFeedRecyclerAdapter(this, this, chatMessageDatabaseList);
 
-        rvChatFeed.addOnLayoutChangeListener(new View.OnLayoutChangeListener(){
+        rvChatFeed.setAdapter(recyclerAdapter);
+        rvChatFeed.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
             @Override
             public void onLayoutChange(View view, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
                 if (bottom < oldBottom) {
                     rvChatFeed.postDelayed(new Runnable() {
                         @Override
                         public void run() {
                             int scrollTo = rvChatFeed.getAdapter().getItemCount() - 1;
-                            scrollTo = scrollTo>=0 ? scrollTo : 0;
+                            scrollTo = scrollTo >= 0 ? scrollTo : 0;
                             rvChatFeed.scrollToPosition(scrollTo);
                         }
                     }, 10);
                 }
             }
         });
+
     }
 
     private void sendMessage(String query) {
         ChatMessage chatMessage = new ChatMessage(query, true, false);
+        updateDatabase(query, true, false);
         recyclerAdapter.addMessage(chatMessage, true);
         computeOtherMessage(query);
     }
 
     private void computeOtherMessage(final String query) {
-        new asksusi().execute(query);
+        new AskSusi().execute(query);
     }
 
+    private void updateDatabase(final String message, final boolean mine, final boolean image) {
+        realm.executeTransactionAsync(new Realm.Transaction() {
+            @Override
+            public void execute(Realm bgRealm) {
+                ChatMessage chatMessage = bgRealm.createObject(ChatMessage.class);
+                chatMessage.setContent(message);
+                chatMessage.setIsMine(mine);
+                chatMessage.setIsImage(image);
+            }
+        }, new Realm.Transaction.OnSuccess() {
+            @Override
+            public void onSuccess() {
+                Log.v(TAG, "update successful!");
+            }
+        }, new Realm.Transaction.OnError() {
+            @Override
+            public void onError(Throwable error) {
+                Log.e(TAG, error.getMessage());
+            }
+        });
+    }
+
+
 //	private void sendMessage() {
 //		ChatMessage chatMessage = new ChatMessage(null, true, true);
 //		recyclerAdapter.addMessage(chatMessage, true);
@@ -141,7 +174,7 @@ protected void onResume() {
         );
     }
 
-//	TODO Removed OnClick for Image for now
+    //	TODO Removed OnClick for Image for now
 //	@OnClick({R.id.iv_image, R.id.btn_send})
     @OnClick(R.id.btn_send)
     public void onClick(View view) {
@@ -160,7 +193,7 @@ public void onClick(View view) {
         }
     }
 
-    private class asksusi extends AsyncTask<String, Void, String> {
+    private class AskSusi extends AsyncTask<String, Void, String> {
         @Override
         protected String doInBackground(String... query) {
             String response = null;
@@ -184,6 +217,7 @@ protected void onPostExecute(String response) {
                 return;
             }
             ChatMessage chatMessage = new ChatMessage(response, false, false);
+            updateDatabase(response, false, false);
             recyclerAdapter.addMessage(chatMessage, true);
         }
 
@@ -192,4 +226,10 @@ private boolean isNetworkConnected() {
             return cm.getActiveNetworkInfo() != null;
         }
     }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        realm.close();
+    }
 }

app/src/main/java/org/fossasia/susi/ai/SplashScreen.java → app/src/main/java/org/fossasia/susi/ai/activities/SplashScreen.java

@@ -1,4 +1,4 @@
-package org.fossasia.susi.ai;
+package org.fossasia.susi.ai.activities;
 
 import android.content.Intent;
 import android.os.Bundle;
@@ -8,6 +8,8 @@
 
 import com.bumptech.glide.Glide;
 
+import org.fossasia.susi.ai.R;
+
 import butterknife.BindView;
 import butterknife.ButterKnife;
 

app/src/main/java/org/fossasia/susi/ai/adapters/recyclerAdapters/ChatFeedRecyclerAdapter.java

@@ -8,12 +8,12 @@
 import android.view.ViewGroup;
 import android.widget.Toast;
 
-import org.fossasia.susi.ai.ChatMessage;
 import org.fossasia.susi.ai.R;
 import org.fossasia.susi.ai.adapters.viewHolders.ChatViewHolder;
+import org.fossasia.susi.ai.model.ChatMessage;
 
-import java.util.ArrayList;
-import java.util.List;
+import io.realm.RealmChangeListener;
+import io.realm.RealmResults;
 
 /**
  * Created by
@@ -30,12 +30,12 @@ public class ChatFeedRecyclerAdapter extends RecyclerView.Adapter<ChatViewHolder
     public static final int OTHER_IMAGE = 3;
 
     private Context currContext;
-    private List<ChatMessage> itemList;
+    private RealmResults<ChatMessage> itemList;
     private Activity activity;
     private String TAG = ChatFeedRecyclerAdapter.class.getSimpleName();
     private RecyclerView recyclerView;
 
-    public ChatFeedRecyclerAdapter(Activity activity, Context curr_context, List<ChatMessage> itemList) {
+    public ChatFeedRecyclerAdapter(Activity activity, Context curr_context, RealmResults<ChatMessage> itemList) {
         this.itemList = itemList;
         this.currContext = curr_context;
         this.activity = activity;
@@ -53,15 +53,19 @@ public void onDetachedFromRecyclerView(RecyclerView recyclerView) {
         this.recyclerView = null;
     }
 
-    public void addMessage(ChatMessage chatMessage, boolean shouldScrollToBottom) {
+    public void addMessage(final ChatMessage chatMessage, final boolean shouldScrollToBottom) {
         if (itemList == null) {
-            itemList = new ArrayList<>();
-        }
-        itemList.add(chatMessage);
-        notifyItemInserted(itemList.size() - 1);
-        if (recyclerView != null && shouldScrollToBottom) {
-            recyclerView.smoothScrollToPosition(itemList.size() - 1);
         }
+        itemList.addChangeListener(new RealmChangeListener<RealmResults<ChatMessage>>() {
+            @Override
+            public void onChange(RealmResults<ChatMessage> element) {
+                notifyItemInserted(itemList.size() - 1);
+                if (recyclerView != null && shouldScrollToBottom) {
+                    recyclerView.smoothScrollToPosition(itemList.size() - 1);
+                }
+            }
+        });
+
     }
 
     public void addMessage(ChatMessage chatMessage) {

app/src/main/java/org/fossasia/susi/ai/ChatMessage.java → app/src/main/java/org/fossasia/susi/ai/model/ChatMessage.java

@@ -1,12 +1,18 @@
-package org.fossasia.susi.ai;
+package org.fossasia.susi.ai.model;
+
+import io.realm.RealmObject;
 
 /**
  * Created by himanshusoni on 06/09/15.
  */
-public class ChatMessage {
+public class ChatMessage extends RealmObject {
     private boolean isImage, isMine;
     private String content;
 
+    public ChatMessage() {
+
+    }
+
     public ChatMessage(String message, boolean mine, boolean image) {
         content = message;
         isMine = mine;

app/src/main/res/layout/activity_main.xml

@@ -10,7 +10,7 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:orientation="vertical"
-        tools:context=".MainActivity">
+        tools:context=".activities.MainActivity">
 
         <android.support.v7.widget.RecyclerView
             android:id="@+id/rv_chat_feed"

app/src/main/res/layout/splash_screen.xml

@@ -5,5 +5,5 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:background="@android:color/black"
-    tools:context=".SplashScreen"
+    tools:context=".activities.SplashScreen"
     tools:src="@drawable/susi_image" />

app/src/main/res/menu/menu_main.xml

@@ -1,6 +1,6 @@
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools" tools:context=".MainActivity">
+    xmlns:tools="http://schemas.android.com/tools" tools:context=".activities.MainActivity">
     <item android:id="@+id/action_settings" android:title="@string/action_settings"
         android:orderInCategory="100" app:showAsAction="never" />
 </menu>

build.gradle

@@ -11,6 +11,7 @@ buildscript {
         classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.2'
         classpath 'com.github.dcendents:android-maven-gradle-plugin:1.4.1'
         classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'
+        classpath "io.realm:realm-gradle-plugin:2.0.0"
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files