/*
* This class will get the input from arduino board and output
* the data to the scanner
* Code adopted from Silveira Neto
*/

package arduinojava;

import java.io.OutputStream;
import javax.swing.JOptionPane;
import java.io.InputStream;
import gnu.io.CommPortIdentifier;
import gnu.io.SerialPort;
import gnu.io.SerialPortEvent;
import gnu.io.SerialPortEventListener;

public class ArduinoJava extends javax.swing.JFrame implements SerialPortEventListener {

    /** Creates new form ColorSensorReaderWindow */
    public ArduinoJava() {
        initComponents();
    }

    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        button_calibrar = new javax.swing.JButton();
        painel_cor = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        button_calibrar.setText("Calibrar");
        button_calibrar.addActionListener(new java.awt.event.ActionListener() {
            @Override
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                button_calibrarActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout painel_corLayout = new javax.swing.GroupLayout(painel_cor);
        painel_cor.setLayout(painel_corLayout);
        painel_corLayout.setHorizontalGroup(
            painel_corLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 232, Short.MAX_VALUE)
        );
        painel_corLayout.setVerticalGroup(
            painel_corLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 153, Short.MAX_VALUE)
        );

        jLabel1.setText("Cor");

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(84, 84, 84)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(painel_cor, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(button_calibrar, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 232, Short.MAX_VALUE))
                .addGap(84, 84, 84))
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addContainerGap(193, Short.MAX_VALUE)
                .addComponent(jLabel1)
                .addGap(190, 190, 190))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addGap(34, 34, 34)
                .addComponent(jLabel1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(painel_cor, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 29, Short.MAX_VALUE)
                .addComponent(button_calibrar)
                .addGap(41, 41, 41))
        );

        pack();
    }// </editor-fold>

    private void button_calibrarActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:
        System.out.println("Calibrate pressed");

    System.arraycopy(RawColor, 0, CalibrationColor, 0, 3);
    }

    static InputStream input;
    static OutputStream output;

    @Override
    public void serialEvent(SerialPortEvent oEvent) {
        if (oEvent.getEventType() == SerialPortEvent.DATA_AVAILABLE) {
            try {
            int available = input.available();
            byte chunk[] = new byte[available];
            input.read(chunk, 0, available);

            for(byte b : chunk){
                if(b == '\n' && !SerialData.isEmpty()) {
                    String [] RGBValues = SerialData.split(" ");

                    if(RGBValues.length != 3)
                            throw new Error("Receivde data could not be decoded");

                    for(int i=0; i<3; i++) {
                        RawColor[i] = Integer.parseInt(RGBValues[i]);
                        CalibratedColor[i] = Math.round(255.0f*(1024.0f-(float)RawColor[i])/(1024.0f-(float)CalibrationColor[i]));
                    }

                    //correct values if outside range

                    if(CalibratedColor[RED]>255)
                        CalibratedColor[RED]=255;
                    if(CalibratedColor[GREEN]>255)
            CalibratedColor[GREEN]=255;
                    if(CalibratedColor[BLUE]>255)
            CalibratedColor[BLUE]=255;

                    //displayColor();
                    System.out.println(Integer.toString(RawColor[RED]));
                    System.out.println(Integer.toString(RawColor[GREEN]));
                    System.out.println(Integer.toString(RawColor[BLUE]));

                    SerialData="";
                }
        else
                    SerialData += (char) b;
            }
            } catch (Exception e) {
        System.err.println(e.toString());
                JOptionPane.showMessageDialog(null,
              e.toString(),
              "Error",
              JOptionPane.ERROR_MESSAGE);

                //DisconnectButton.setEnabled(false);
        //ConnectButton.setEnabled(true);
        //closeSerialComm();
            }
    }

    public static void main(String[] args) throws Exception {

        System.out.println("Connecting to serial device...");

        MyPrefs.init();
        System.out.println("Using port: " + MyPrefs.get("serial.port"));
        System.out.println("Using board: " + MyPrefs.get("board"));
        CommPortIdentifier portId = CommPortIdentifier.getPortIdentifier(
                MyPrefs.get("serial.port"));

        SerialPort port = (SerialPort)portId.open("serial talker", 4000);

        // open the streams
        input = port.getInputStream();
        output = port.getOutputStream();
        port.setSerialPortParams(MyPrefs.getInteger("serial.debug_rate"),
                SerialPort.DATABITS_8,
                SerialPort.STOPBITS_1,
                SerialPort.PARITY_NONE);

        java.awt.EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                new ArduinoJava().setVisible(true);
            }
        });

    }

    // Variables declaration - do not modify
    private javax.swing.JButton button_calibrar;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JPanel painel_cor;
    // End of variables declaration
    /*Incoming data from Arduino*/
    private String SerialData = "";

    private final int RED=0;
    private final int GREEN=1;
    private final int BLUE=2;

    private int CalibrationColor [] = {1,1,1};
    private int RawColor [] = {255,255,255};
    private int CalibratedColor [] = {255,255,255};
}