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import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.media.AudioManager;
import android.media.RingtoneManager;
import android.media.SoundPool;
import android.net.Uri;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v7.app.AppCompatActivity;
import android.text.TextUtils;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ListView;
import android.widget.RelativeLayout;
import android.widget.TextView;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;

import org.json.JSONException;
import org.json.JSONObject;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;

public class ChatActivity extends AppCompatActivity {



    private EditText messageET;
    private static ListView messagesContainer;
    private ImageButton sendBtn;
    private ChatAdapter adapter;
    private ArrayList<ChatMessage> chatHistory;
    private ObjectInputStream objectInputStream;
    private ObjectOutputStream objectOutputStream;
    private final String AUTHKEYPREF = "BOOLEANAUTHKEY";
    private final String USERNAME = "USERNAME";
    private final String PASSWORD = "PASSWORD";
    private final String CHATTAG = "CHAT_ACTIVITY_TAG";
    public  String login;
    private String token;
    private String hash;
    private Socket socket;
    ServerSocket _socketServer;
    private String server_address;
    private int server_port;

    public static String newMessage;

    public void listenNewMessages()
    {
        /*
        try {
            while (true) {
                Thread.sleep(500);
                SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
                RClient rClient = new RClient(server_address, server_port);
                MessioObject.GetMessageResponse response = rClient.getMessageFromHash(token,hash);
                if(response.isResult()&&response.getHash()!=hash)
                {
                    ArrayList<RChecksum.Pair<String,String>> messagesList =
                            response.getMessagesList();
                    for(final RChecksum.Pair<String,String> pair : messagesList)
                    {
                        runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                ChatMessage chatMessage = new ChatMessage();
                                chatMessage.setMessage(pair.getRight());
                                chatMessage.setMe(false);
                                displayMessage(chatMessage);
                            }
                        });

                    }

                }
                SharedPreferences s = getSharedPreferences("rset",MODE_PRIVATE);
                SharedPreferences.Editor sh = s.edit();
                sh.putString("HASH",response.getHash());
                sh.commit();

            }
        }
        catch (InterruptedException ex)
        {
            ex.printStackTrace();
        }
        */
        while (true)
        {
            try {
                Thread.sleep(10);
                Socket socket = _socketServer.accept();
                newMessage = new DataInputStream(socket.getInputStream()).readUTF();
                Log.d("MESSAGE", newMessage);

                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        try {
                            JSONObject jsonObject = new JSONObject(newMessage);
                            ChatMessage chatMessage = new ChatMessage();
                            Log.d("MESSAGETEXT", "message received" + jsonObject.toString());
                            String author = jsonObject.getString("author");
                            String text = jsonObject.getString("message");
                            chatMessage.setMessage(jsonObject.getString("message"));
                            chatMessage.setMe(false);
                            chatMessage.setDate(DateFormat.getDateTimeInstance().format(new Date()) + "\n" + jsonObject.getString("author"));
                            chatMessage.setId(1);
                            chatMessage.setUserId(53);
                            showNotification(text, author);
                            displayMessage(chatMessage);
                        }
                        catch (JSONException ex)
                        {

                        }
                    }
                });
                /*
                Uri notification = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
                Ringtone r = RingtoneManager.getRingtone(getApplicationContext(), notification);
                r.play();
                */
                socket.close();
            }
            catch (Exception ex)
            {
               // ex.printStackTrace();
            }
        }
    }

    public final static int NOTIFY_ID = 101;
    public void showNotification(String text, String author){
        Uri soundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        Intent intent = new Intent(ChatActivity.this, ChatActivity.class);
        PendingIntent pIntent = PendingIntent.getActivity(ChatActivity.this, 0, intent, 0);
        Notification mNotification = new Notification.Builder(this)
                .setContentTitle(author + " send you a new message!" )
                .setContentText(text)
                .setSmallIcon(R.drawable.sendicon)
                .setContentIntent(pIntent)
                .setSound(soundUri)
                .addAction(R.drawable.sendicon, "View", pIntent)
                .addAction(0, "Remind", pIntent)
                .build();
        NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
        notificationManager.notify(0, mNotification);
    }

    public void cancelNotification(int notificationId){

        if (Context.NOTIFICATION_SERVICE!=null) {
            String ns = Context.NOTIFICATION_SERVICE;
            NotificationManager nMgr = (NotificationManager) getApplicationContext().getSystemService(ns);
            nMgr.cancel(notificationId);
        }
    }



    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);


                SharedPreferences s = getSharedPreferences("rset", MODE_PRIVATE);
                token = s.getString("TOKEN","");
                hash = s.getString("HASH","");
                login = s.getString(USERNAME, "");
                SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
                 server_address = sp.getString("server", "");
                 server_port = Integer.parseInt(sp.getString("port", ""));

                if (!server_address.equals("") && server_port != 0) {
                    try {
                        Thread thread = new Thread(new Runnable() {
                            @Override
                            public void run()   {
                                try {
                                    _socketServer = new ServerSocket(1347);
                                    socket = new Socket(server_address, server_port);
                                    objectOutputStream = new ObjectOutputStream(socket.getOutputStream());
                                    objectOutputStream.flush();
                                    objectInputStream = new ObjectInputStream(socket.getInputStream());
                                }
                                catch (IOException ex)
                                {
                                    ex.printStackTrace();
                                }
                                RClient rClient = new RClient(server_address, server_port);

                            }
                        });
                        thread.start();





                    } catch (Exception ex) {
                        ex.printStackTrace();
                    }
                }

        setContentView(R.layout.activity_chat);
        initControls();




    }

    private void initControls() {
        adapter = new ChatAdapter(ChatActivity.this, new ArrayList<ChatMessage>());
        messagesContainer = (ListView) findViewById(R.id.messagesContainer);
        messageET = (EditText) findViewById(R.id.messageEdit);
        sendBtn = (ImageButton) findViewById(R.id.chatSendButton);
        TextView meLabel = (TextView) findViewById(R.id.meLbl);
        meLabel.setText(getSharedPreferences("rset", MODE_PRIVATE).getString(USERNAME, ""));
        TextView companionLabel = (TextView) findViewById(R.id.friendLabel);
        RelativeLayout container = (RelativeLayout) findViewById(R.id.container);
        companionLabel.setText("Chat");
        Thread _thread = new Thread(new Runnable() {
            @Override
            public void run() {
                listenNewMessages();
            }
        });
        /*
        Thread updateChatThread = new Thread(new Runnable() {
            @Override
            public void run() {
                while(true) {
                    try {
                        Thread.sleep(2000);
                        doHistoryRequest();
                    }
                    catch (InterruptedException ex)
                    {

                    }
                }
            }
        });

        updateChatThread.start();
        */
        _thread.setDaemon(true);
        _thread.start();
        sendBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                try {
                            final String messageText = messageET.getText().toString();
                            if (TextUtils.isEmpty(messageText)) {
                                return;
                            }
                            messageET.setText("");
                            Log.d(CHATTAG, messageText);
                            SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
                            final String server_address = sp.getString("server", "");
                            final int server_port = Integer.parseInt(sp.getString("port", ""));

                            Thread thread  = new Thread(new Runnable() {
                                @Override
                                public void run() {
                                    if (!server_address.equals("") && server_port != 0)
                                    {
                                        String hash = null;
                                        RClient rClient = new RClient(server_address, server_port);
                                        try {
                                            hash = RChecksum.sha1hash(getCurrentTimeStamp() + login + messageText);
                                        }

                                        catch (Exception ex)
                                        {
                                            ex.printStackTrace();
                                        }
                                        MessioObject.SendMessageResponse response =
                                                rClient.sendMessageRequest(token,hash,messageText);

                                        final ChatMessage chatMessage = new ChatMessage();
                                        chatMessage.setMessage(messageText);
                                        chatMessage.setMe(true);
                                        chatMessage.setDate(DateFormat.getDateTimeInstance().format(new Date()));
                                        chatMessage.setId(1);
                                        SoundPool soundPool = new SoundPool(1, AudioManager.STREAM_MUSIC, 100);
                                        soundPool.load(getApplicationContext(), R.raw.sound_in, 1);
                                        soundPool.play(1, 1, 1, 1, 0 ,1);
                                        runOnUiThread(new Runnable() {
                                            @Override
                                            public void run() {
                                                displayMessage(chatMessage);
                                            }
                                        });

                                    }
                                }
                            });
                    thread.start();

                }
                catch (Exception ex)
                {
                    ex.printStackTrace();
                }




            }
        });

        }

    public void displayMessage(ChatMessage message) {
        adapter.add(message);
        adapter.notifyDataSetChanged();
        scroll();
    }

    public String getDateFromUnixTimeStamp(long time)
    {
        Date date = new Date(time); // *1000 is to convert seconds to milliseconds
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); // the format of your date
        return sdf.format(date);
    }

    private void scroll() {
        messagesContainer.setSelection(messagesContainer.getCount() - 1);
    }

    private void loadHistory(ArrayList<MessioObject.MessageDBItem> list) {

        chatHistory = new ArrayList<ChatMessage>();
        messagesContainer.setAdapter(null);
        ArrayList<ChatMessage> arrayList = new ArrayList<>();
        for(MessioObject.MessageDBItem item :  list)
        {
            ChatMessage message = new ChatMessage();
            Log.d("History: ", "current login: " + login + "checking: " + item.getLOGIN());
            if(item.getLOGIN().equals(login)) {
                message.setMe(true);
                message.setDate(getDateFromUnixTimeStamp(item.getDATEOFMESSAGE()));
            }
            else {
                message.setMe(false);
                message.setDate(getDateFromUnixTimeStamp(item.getDATEOFMESSAGE()) + "\n" + item.getLOGIN());
            }
            message.setId(1);
            message.setUserId(53);
            message.setMessage(item.getMESSAGE());
            arrayList.add(message);
        }
        adapter = new ChatAdapter(ChatActivity.this, arrayList);
        messagesContainer.setAdapter(adapter);
        for (int i = 0; i < chatHistory.size(); i++) {
            ChatMessage message = chatHistory.get(i);
            displayMessage(message);
            scroll();
        }
        scroll();
    }


    public String getCurrentTimeStamp() {
        return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS").format(new Date());
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater menuInflater = getMenuInflater();
        menuInflater.inflate(R.menu.chatmenu, menu);
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case R.id.exit_button: {
                SharedPreferences sharedPreferences = getSharedPreferences("rset", MODE_PRIVATE);
                SharedPreferences.Editor editor = sharedPreferences.edit();
                editor.putString("TOKEN", token);
                editor.putString(USERNAME, "");
                editor.putString(PASSWORD, "");
                editor.putBoolean("BOOLEANAUTHKEY", false);
                editor.commit();
                this.finish();
            }
            case R.id.update: {
                doHistoryRequest();
            }
            return true;

            default:
                // If we got here, the user's action was not recognized.
                // Invoke the superclass to handle it.
                return super.onOptionsItemSelected(item);

        }
    }

    public void doHistoryRequest()
    {
        Thread thread = new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    Socket socket = new Socket(server_address, server_port);
                    DataOutputStream os = new DataOutputStream(socket.getOutputStream());
                    os.flush();
                    DataInputStream is = new DataInputStream(socket.getInputStream());

                    MessioObject.GetHistoryMessagesRequest request = new
                            MessioObject.GetHistoryMessagesRequest();
                    request.setToken(token);
                    request.setType(MessioObject.GETALLCHATHISTORY_REQUEST);
                    Gson gson = new GsonBuilder().serializeNulls().setPrettyPrinting().create();
                    os.writeUTF(gson.toJson(request));
                    os.flush();
                    String re = is.readUTF();
                    final MessioObject.GetHistoryMessagesResponse response =
                            gson.fromJson(re, MessioObject.GetHistoryMessagesResponse.class);
                    Log.d("tag", re);
                    socket.close();
                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            loadHistory(response.getMessagesList());
                        }
                    });
                } catch (Exception ex) {

                }
            }
        });
        thread.start();
    }

    @Override
    public void onBackPressed() {
        super.onBackPressed();
    }
}