163817425: Push cache data to api

app/src/main/java/com/andela/art/checkin/CheckInActivity.java

@@ -21,6 +21,7 @@
 import com.andela.art.root.ApplicationModule;
 import com.andela.art.root.ArtApplication;
 import com.andela.art.root.BaseMenuActivity;
+import com.andela.art.utils.NetworkUtil;
 import com.andela.art.securitydashboard.presentation.NfcSecurityDashboardActivity;
 import com.squareup.picasso.Picasso;
 import java.util.Locale;
@@ -40,12 +41,19 @@ public class CheckInActivity extends BaseMenuActivity implements CheckInView {
     Bundle bundle;
     private View mProgressView;
     private CheckInRepository mRepository;
+    public NetworkUtil networkUtil = new NetworkUtil();
 
 
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         binding = DataBindingUtil.setContentView(this, R.layout.activity_check_in);
+        mRepository = new CheckInRepository(getApplication());
+        if (!networkUtil.isNetworkAvailable(this)) {
+            //TODO: Should be different layout for offline devices
+            binding = DataBindingUtil.setContentView(this, R.layout.cached_activity_check_in);
+        }
+
         mProgressView = findViewById(R.id.check_in_view_progressbar);
         applicationComponent = ((ArtApplication) getApplication())
                 .applicationComponent();
@@ -60,6 +68,8 @@ protected void onCreate(@Nullable Bundle savedInstanceState) {
         setSupportActionBar(binding.checkInToolbar);
         binding.checkInToolbar.setTitleTextAppearance(this, R.style.CheckInTitle);
         presenter.attachView(this);
+        mRepository.setPresenter(presenter);
+        mRepository.query();
         displayDetails();
     }
 

app/src/main/java/com/andela/art/room/ArtDao.java

@@ -2,6 +2,9 @@
 
 import android.arch.persistence.room.Dao;
 import android.arch.persistence.room.Insert;
+import android.arch.persistence.room.Query;
+
+import java.util.List;
 
 
 /**
@@ -18,4 +21,18 @@ public interface ArtDao {
      */
     @Insert
     void insertCheckIn(CheckInEntity checkInEntity);
+
+    /**
+     * Get checkin data.
+     * @return Return list of checkIn entities.
+     */
+    @Query("SELECT * FROM checkIn")
+    List<CheckInEntity> getAllCheckInData();
+
+    /**
+     * Delete all Check In Records.
+     */
+    @Query("DELETE FROM checkIn")
+    void deleteAllRecords();
+
 }

app/src/main/java/com/andela/art/room/ArtDatabase.java

@@ -29,7 +29,7 @@ static ArtDatabase getDatabase(final Context context) {
         synchronized (ArtDatabase.class) {
             if (instance == null) {
                 instance = Room.databaseBuilder(context.getApplicationContext(),
-                        ArtDatabase.class, "artdb").build();
+                            ArtDatabase.class, "artdb").build();
             }
         }
         return instance;

app/src/main/java/com/andela/art/room/CheckInRepository.java

@@ -3,6 +3,10 @@
 import android.app.Application;
 import android.os.AsyncTask;
 
+import com.andela.art.checkin.CheckInPresenter;
+
+import java.util.List;
+
 /**
  * Abstracted Repository as promoted by the Architecture Guide.
  * https://developer.android.com/topic/libraries/architecture/guide.html
@@ -11,6 +15,15 @@
 @SuppressWarnings("PMD.ImmutableField")
 public class CheckInRepository {
     private  ArtDao mArtDao;
+    private CheckInPresenter presenter;
+
+    /**
+     * Set presenter value.
+     * @param presenter CheckinPresenter
+     */
+    public void setPresenter(CheckInPresenter presenter) {
+        this.presenter = presenter;
+    }
 
     /**
      * Check in repository constructor.
@@ -29,6 +42,13 @@ public void insert(CheckInEntity mCheckInEntity) {
         new InsertAsyncTask(mArtDao).execute(mCheckInEntity);
     }
 
+    /**
+     *
+     */
+    public void query() {
+        new QueryAsyncTask(mArtDao).execute();
+    }
+
     /**
      * non-UI thread to insert data into the DB.
      */
@@ -51,4 +71,36 @@ protected Void doInBackground(CheckInEntity... checkInEntities) {
             return null;
         }
     }
+
+    /**
+     * Non-UI thread to query data from the DB.
+     */
+    private class QueryAsyncTask extends AsyncTask<Void, Void, Void> {
+
+        private ArtDao mAsyncTaskDao;
+
+        /**
+         * Constructor.
+         * @param mArtDao ArtDao.
+         */
+        QueryAsyncTask(ArtDao mArtDao) {
+            mAsyncTaskDao = mArtDao;
+        }
+
+        @Override
+        protected Void doInBackground(Void... voids) {
+            List<CheckInEntity> checkInData = mAsyncTaskDao.getAllCheckInData();
+            if (checkInData.isEmpty()) {
+                //Do nothing
+                return null;
+            } else {
+                presenter.checkIn(checkInData.get(0).getId(), //NOPMD
+                        checkInData.get(0).getLogStatus()); //NOPMD
+                mAsyncTaskDao.deleteAllRecords();
+
+            }
+            return null;
+        }
+    }
+
 }