package Bluetooth;

import Interfaces.Observable;
import Interfaces.Observer;
import Vue.FXMLVueController;
import java.io.EOFException;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.logging.Level;
import java.util.logging.Logger;
import sun.misc.IOUtils;

public class BluetoothThread extends Thread implements Observable {
        private static final int PACKET_SIZE = 18;
        
	private BluetoothConnection connection;
	private boolean keepGoing = true;
	private String buffer;
        private Observer observer; 
        
	public BluetoothThread(BluetoothConnection connection, Observer observer) {
		this.connection = connection;
                this.observer = observer;
	}
	
        public void notifyObserver(){
            this.observer.update(this);
        }
        
        public String getBuffer(){
            return this.buffer;
        }
        
	@Override
	public void run() {	
		while (keepGoing) {
			byte b;
			try {
				// Each packet must start with two SYNC bytes in a row
				byte[] payload = new byte[PACKET_SIZE];
				int nbRead = connection.getInputStream().read(payload);
                                System.out.println("payload : " + payload);
                                System.out.println("nbRead : " + nbRead);
				this.buffer = new String(payload, StandardCharsets.UTF_8);
				notifyObserver();	

			} catch (Exception e) {
                                System.out.println("Could not read stream + " + e);
			}
		}
		
		// If we reach this point the thread is shutting down, so try to disconnect from the headset
	}
	
	public void stopThread() {
            try {
                keepGoing = false;
                finalize();
            } catch (Throwable ex) {
                ex.printStackTrace();
            }
	}
	
	@Override
	protected void finalize() throws Throwable {
		super.finalize();
		
		if(null != connection) {
			if(null != connection.getInputStream()) {
				connection.getInputStream().close();
			}
			if(null != connection.getOutputStream()) {
				try {
					connection.getOutputStream().flush();
				} catch(Exception e) { e.printStackTrace(); }
				connection.getOutputStream().close();
			}
		}
	}
        
        public void sendInstruction(String instruction)throws IOException {
            connection.getOutputStream().write(instruction.getBytes());
        }	
}