package com.example.powerful.platformcontrol;

import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.Context;
import android.content.Intent;
import android.os.Handler;
import android.os.Vibrator;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.CheckBox;
import android.widget.TextView;
import android.widget.Toast;

import java.io.IOException;
import java.util.Objects;
import java.util.Set;
import java.util.Timer;
import java.util.TimerTask;
import java.util.UUID;

public class MainScreen extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_screen);

        final boolean stopWorker=false;
        Thread workerThread;
        final String data = null;
        final Handler handler = new Handler();
        workerThread = new Thread(new Runnable()
        {
            public void run()
            {
                if (found==true)
                while(!Thread.currentThread().isInterrupted() && !stopWorker)
                {   Log.d("bt","Thread run");
                    try {
                        int bytesAvailable = mmInputStream.available();
                        byte[] readBuffer = new byte[0];
                        int readBufferPosition=0;
                        byte[] packetBytes = new byte[0];
                        //inits finished
                        if (bytesAvailable > 0) {
                            packetBytes = new byte[bytesAvailable];
                            mmInputStream.read(packetBytes);
                            Log.d("bt", "BT received");
                        }
                        for(int i=0;i<bytesAvailable;i++)
                        {
                            byte b = packetBytes[i];
                            byte delimiter=10;
                            if(b == delimiter)
                            {
                                byte[] encodedBytes = new byte[readBufferPosition];
                                System.arraycopy(readBuffer, 0, encodedBytes, 0, encodedBytes.length);
                                final String data = new String(encodedBytes, "US-ASCII");
                                readBufferPosition = 0;

                                //The variable data now contains our full command
                            }
                            else
                            {
                                readBuffer[readBufferPosition++] = b;
                            }
                        }
                        handler.post(new Runnable()
                        {
                            public void run()
                            {
                                if (data=="T")
                                {
                                    Vibrator v = (Vibrator) getSystemService(VIBRATOR_SERVICE);
                                    // Vibrate for 500 milliseconds
                                    v.vibrate(500);
                                    Log.d("bt", "vibrate command given");
                                }
                            }
                        });

                    } catch (IOException e) {
                    e.printStackTrace();}

                }
            }
        });

        workerThread.start();

    }
    public boolean found=false;
    public int curSpeed=200;
    public int countdown=-1;
    public Timer timer= new Timer();
    public java.io.OutputStream mmOutputStream;
    public java.io.InputStream mmInputStream;
    public void CheckSyncButtonPress(View view) {
        int REQUEST_ENABLE_BT=1;
        //sync button pressed
        //check that we can use bluetooth
        BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
        // Device supports bluetooth so let's try and enable it
        if (mBluetoothAdapter == null) {
            // Device does not support Bluetooth
        }
        else {
            if (!mBluetoothAdapter.isEnabled()) {
                //enable message popup

                Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
                startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
            }
            else
            {//if it IS enabled
                Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
                android.bluetooth.BluetoothDevice targetDevice = null; //variable for found device

                String targetName="HC-06";
                if (pairedDevices.size() > 0) {
                    // If there are paired devices
                    // Loop through paired devices
                    for (BluetoothDevice device : pairedDevices) {
                     if (Objects.equals(device.getName().trim(), targetName))
                      {
                         targetDevice=device;
                          found=true;
                          //found one that has the right name
                        }
                    }
                }
                if (found==true)
                {
                    //we have a target device for connection

                    UUID uuid = UUID.fromString("00001101-0000-1000-8000-00805f9b34fb"); //Standard SerialPortService ID
                    try {
                        android.bluetooth.BluetoothSocket mmSocket = targetDevice.createRfcommSocketToServiceRecord(uuid);
                        mmSocket.connect();
                        mmOutputStream = mmSocket.getOutputStream();
                        mmInputStream = mmSocket.getInputStream();
                        CheckBox checkBox = (CheckBox)findViewById(R.id.bxConnectStatus);
                        checkBox.setChecked(true);
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }

            }
        }
    }
    public void EnableButtonPress(View view) {
        Log.d("Button","Enablepressed");
        if (found==true){
        try {
            mmOutputStream.write("N".getBytes());
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    }
    public void DisableButtonPress(View view) {
        if (found==true){
            try {
                mmOutputStream.write("O".getBytes());
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    public void TrackingModeButtonPress(View view) {
        if (found==true){
            try {
                mmOutputStream.write("T".getBytes());
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    public void DriveModeButtonPress(View view) {
        if (found==true){
            try {
                mmOutputStream.write("F".getBytes());
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    public void ResetModeButtonPress(View view) {
        if (found==true){
            try {
                mmOutputStream.write("R".getBytes());
                /*timer.schedule(new TimerTask(){
                    @Override
                    public void run() {
                        doStuff();
                    }
                },0,120000 );*/
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    public void SpeedUpButtonPress(View view) {
        if (found==true){
            try {
                mmOutputStream.write("+".getBytes());
                curSpeed+=1;
                TextView counttext= (TextView)findViewById(R.id.txCurSpeed);
                counttext.setText(Integer.toString(curSpeed));
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    public void SpeedDownButtonPress(View view) {
        if (found==true){
            try {
                mmOutputStream.write("-".getBytes());
                curSpeed-=1;
                TextView counttext= (TextView)findViewById(R.id.txCurSpeed);
                counttext.setText(Integer.toString(curSpeed));
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    public void SpeedResetButtonPress(View view) {
        if (found==true){
            try {
                mmOutputStream.write("S".getBytes());
                curSpeed=200;
                TextView counttext= (TextView)findViewById(R.id.txCurSpeed);
                counttext.setText(Integer.toString(curSpeed));
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    public void doStuff()
    {
        try {
            mmOutputStream.write("T".getBytes());
        } catch (IOException e) {
            e.printStackTrace();
        }
    }


}