CustomizedTopicsFragment.java

package com.cusnews.app.fragments;

import java.lang.ref.WeakReference;
import java.security.NoSuchAlgorithmException;
import java.util.List;

import android.app.Activity;
import android.content.Context;
import android.databinding.DataBindingUtil;
import android.os.Bundle;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.Fragment;
import android.support.v7.widget.PopupMenu;
import android.view.LayoutInflater;
import android.view.MenuItem;
import android.view.MenuItem.OnMenuItemClickListener;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.EditText;

import com.cusnews.BR;
import com.cusnews.R;
import com.cusnews.api.Api;
import com.cusnews.app.App;
import com.cusnews.databinding.CustomizedTopicsBinding;
import com.cusnews.ds.PushToken;
import com.cusnews.ds.Trends;
import com.cusnews.utils.DeviceUniqueUtil;
import com.cusnews.utils.Prefs;
import com.cusnews.utils.Utils;

import cn.bmob.v3.BmobQuery;
import cn.bmob.v3.listener.FindListener;
import cn.bmob.v3.listener.UpdateListener;
import retrofit.Callback;
import retrofit.RetrofitError;
import retrofit.client.Response;

/**
 * A dialog to define customized topics.
 *
 * @author Xinyue Zhao
 */
public final class CustomizedTopicsFragment extends DialogFragment {
	/**
	 * Main layout for this component.
	 */
	private static final int LAYOUT           = R.layout.fragment_customized_topics;
	/**
	 * "menu" of current trends from
	 * <p/>
	 * <a href="http://www.faroo.com">Faroo.com</a>
	 */
	private static final int TRENDS_SELECTION = R.menu.trends_selection;
	/**
	 * Data-binding.
	 */
	private CustomizedTopicsBinding mBinding;

	public static CustomizedTopicsFragment newInstance( Context context ) {
		return (CustomizedTopicsFragment) Fragment.instantiate( context, CustomizedTopicsFragment.class.getName() );
	}

	@Override
	public View onCreateView( LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState ) {
		return inflater.inflate( LAYOUT, container, false );
	}

	@Override
	public void onViewCreated( View view, Bundle savedInstanceState ) {
		super.onViewCreated( view, savedInstanceState );
		mBinding = DataBindingUtil.bind( view.findViewById( R.id.topics_fl ) );
		//Click "ok" to save current values.
		mBinding.closeVg.setOnClickListener( new OnClickListener() {
			@Override
			public void onClick( View v ) {
				if( !Utils.validateKeyword( mBinding.oneEt ) || !Utils.validateKeyword( mBinding.twoEt ) ||
					!Utils.validateKeyword( mBinding.threeEt ) || !Utils.validateKeyword( mBinding.fourEt ) ||
					!Utils.validateKeyword( mBinding.fiveEt ) ) {
					return;
				}

				mBinding.closeBtn.setVisibility( View.INVISIBLE );
				mBinding.savePb.setVisibility( View.VISIBLE );


				mBinding.oneEt.setEnabled( false );
				mBinding.twoEt.setEnabled( false );
				mBinding.threeEt.setEnabled( false );
				mBinding.fourEt.setEnabled( false );
				mBinding.fiveEt.setEnabled( false );

				String deviceId = "0000000000";
				try {
					deviceId = DeviceUniqueUtil.getDeviceIdent( App.Instance );
				} catch( NoSuchAlgorithmException e ) {

				}
				Prefs                prefs = Prefs.getInstance();
				BmobQuery<PushToken> query = new BmobQuery<>();
				query.addWhereEqualTo( "mGoogleId", prefs.getGoogleId() );
				query.addWhereEqualTo( "mDeviceId", deviceId );
				query.findObjects( App.Instance, new FindListener<PushToken>() {
					@Override
					public void onSuccess( List<PushToken> list ) {
						if( list.size() > 0 ) {
							PushToken pushToken = list.get( 0 );
							pushToken.setCustomizedTopic1( mBinding.oneEt.getText().toString() );
							pushToken.setCustomizedTopic2( mBinding.twoEt.getText().toString() );
							pushToken.setCustomizedTopic3( mBinding.threeEt.getText().toString() );
							pushToken.setCustomizedTopic4( mBinding.fourEt.getText().toString() );
							pushToken.setCustomizedTopic5( mBinding.fiveEt.getText().toString() );
							pushToken.update( App.Instance, pushToken.getObjectId(), new UpdateListener() {
								@Override
								public void onSuccess() {
									Activity activity = getActivity();
									if( activity != null ) {
										ActivityCompat.finishAfterTransition( activity );
									}
								}

								@Override
								public void onFailure( int i, String s ) {
									mBinding.closeBtn.setText( R.string.btn_retry );
									mBinding.closeBtn.setVisibility( View.VISIBLE );
									mBinding.savePb.setVisibility( View.INVISIBLE );

									mBinding.oneEt.setEnabled( true );
									mBinding.twoEt.setEnabled( true );
									mBinding.threeEt.setEnabled( true );
									mBinding.fourEt.setEnabled( true );
									mBinding.fiveEt.setEnabled( true );
								}
							} );
						}
					}

					@Override
					public void onError( int i, String s ) {
						mBinding.closeBtn.setText( R.string.btn_retry );
						mBinding.closeBtn.setVisibility( View.VISIBLE );
						mBinding.savePb.setVisibility( View.INVISIBLE );

						mBinding.oneEt.setEnabled( true );
						mBinding.twoEt.setEnabled( true );
						mBinding.threeEt.setEnabled( true );
						mBinding.fourEt.setEnabled( true );
						mBinding.fiveEt.setEnabled( true );
					}
				} );
			}
		} );

		//Get data from backend to refresh UI.
		String deviceId = "0000000000";
		try {
			deviceId = DeviceUniqueUtil.getDeviceIdent( App.Instance );
		} catch( NoSuchAlgorithmException e ) {

		}
		Prefs                prefs = Prefs.getInstance();
		BmobQuery<PushToken> query = new BmobQuery<>();
		query.addWhereEqualTo( "mGoogleId", prefs.getGoogleId() );
		query.addWhereEqualTo( "mDeviceId", deviceId );
		query.findObjects( App.Instance, new FindListener<PushToken>() {
			@Override
			public void onSuccess( List<PushToken> list ) {
				mBinding.oneEt.setEnabled( true );
				mBinding.twoEt.setEnabled( true );
				mBinding.threeEt.setEnabled( true );
				mBinding.fourEt.setEnabled( true );
				mBinding.fiveEt.setEnabled( true );
				if( list.size() > 0 ) {
					mBinding.setVariable( BR.pushToken, list.get( 0 ) );
				}

				mBinding.closeBtn.setVisibility( View.VISIBLE );
				mBinding.savePb.setVisibility( View.INVISIBLE );
			}

			@Override
			public void onError( int i, String s ) {
				mBinding.oneEt.setEnabled( true );
				mBinding.twoEt.setEnabled( true );
				mBinding.threeEt.setEnabled( true );
				mBinding.fourEt.setEnabled( true );
				mBinding.fiveEt.setEnabled( true );

				mBinding.closeBtn.setVisibility( View.VISIBLE );
				mBinding.savePb.setVisibility( View.INVISIBLE );
			}
		} );

		//Get trends.
		Api.getTopTrends( "", Prefs.getInstance().getLanguage(), App.Instance.getApiKey(), new Callback<Trends>() {
			@Override
			public void success( Trends trends, Response response ) {
				Activity activity = getActivity();
				if( activity != null ) {
					List<String> listOfTrends = trends.getList();

					mBinding.trendsOneBtn.setVisibility( View.VISIBLE );
					final PopupMenu oneMenu = new PopupMenu( activity, mBinding.trendsOneBtn );
					oneMenu.inflate( TRENDS_SELECTION );
					initMenu( oneMenu, listOfTrends, mBinding.oneEt );
					mBinding.trendsOneBtn.setOnClickListener( new OnClickListener() {
						@Override
						public void onClick( View v ) {
							oneMenu.show();
						}
					} );

					mBinding.trendsTwoBtn.setVisibility( View.VISIBLE );
					final PopupMenu twoMenu = new PopupMenu( activity, mBinding.trendsTwoBtn );
					twoMenu.inflate( TRENDS_SELECTION );
					initMenu( twoMenu, listOfTrends, mBinding.twoEt );
					mBinding.trendsTwoBtn.setOnClickListener( new OnClickListener() {
						@Override
						public void onClick( View v ) {
							twoMenu.show();
						}
					} );

					mBinding.trendsThreeBtn.setVisibility( View.VISIBLE );
					final PopupMenu threeMenu = new PopupMenu( activity, mBinding.trendsThreeBtn );
					threeMenu.inflate( TRENDS_SELECTION );
					initMenu( threeMenu, listOfTrends, mBinding.threeEt );
					mBinding.trendsThreeBtn.setOnClickListener( new OnClickListener() {
						@Override
						public void onClick( View v ) {
							threeMenu.show();
						}
					} );

					mBinding.trendsFourBtn.setVisibility( View.VISIBLE );
					final PopupMenu fourMenu = new PopupMenu( activity, mBinding.trendsFourBtn );
					fourMenu.inflate( TRENDS_SELECTION );
					initMenu( fourMenu, listOfTrends, mBinding.fourEt );
					mBinding.trendsFourBtn.setOnClickListener( new OnClickListener() {
						@Override
						public void onClick( View v ) {
							fourMenu.show();
						}
					} );

					mBinding.trendsFiveBtn.setVisibility( View.VISIBLE );
					final PopupMenu fiveMenu = new PopupMenu( activity, mBinding.trendsFiveBtn );
					fiveMenu.inflate( TRENDS_SELECTION );
					initMenu( fiveMenu, listOfTrends, mBinding.fiveEt );
					mBinding.trendsFiveBtn.setOnClickListener( new OnClickListener() {
						@Override
						public void onClick( View v ) {
							fiveMenu.show();
						}
					} );
				}
			}

			private void initMenu( PopupMenu popupMenu, List<String> listOfTrends, EditText targetEt ) {
				final WeakReference<EditText> etwp = new WeakReference<>( targetEt );
				for( String trend : listOfTrends ) {
					popupMenu.getMenu().add( trend ).setOnMenuItemClickListener( new OnMenuItemClickListener() {
						@Override
						public boolean onMenuItemClick( MenuItem item ) {
							if( etwp.get() != null ) {
								EditText editText = etwp.get();
								editText.setText( item.getTitle() );
							}
							return false;
						}
					} );
				}
			}
			@Override
			public void failure( RetrofitError error ) {

			}
		} );
	}
}