/*
 * Name: Sana Khan
 * Assignment 3 (Bank Project v. 1)
 * Date: 2nd February 2012
 * Instructor: Volodymyr Voytenko
 */

package mypackage;

import javax.microedition.global.Formatter;

import net.rim.device.api.system.Bitmap;
import net.rim.device.api.ui.Field;
import net.rim.device.api.ui.FieldChangeListener;
import net.rim.device.api.ui.MenuItem;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.BitmapField;
import net.rim.device.api.ui.component.ButtonField;
import net.rim.device.api.ui.component.CheckboxField;
import net.rim.device.api.ui.component.Dialog;
import net.rim.device.api.ui.component.EditField;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.component.Menu;
import net.rim.device.api.ui.component.ObjectChoiceField;
import net.rim.device.api.ui.component.PasswordEditField;
import net.rim.device.api.ui.component.SeparatorField;
import net.rim.device.api.ui.container.HorizontalFieldManager;
import net.rim.device.api.ui.container.MainScreen;
import net.rim.device.api.ui.component.*;
import net.rim.device.api.ui.container.*;


public class BankInterest extends MainScreen implements FieldChangeListener {

	// Screen Title section.
	protected LabelField title = new LabelField("Calculate Interest" ,
	                  LabelField.ELLIPSIS | LabelField.FIELD_HCENTER);

	Formatter f = new Formatter();

	BitmapField bitmap;
	Bitmap logo;

	EditField amountField; // editable user field
//	EditField interestField; // editable user field
	EditField yearField; // editable user field

	ButtonField interestButton;  // interest button
	ButtonField totalButton;  // Total button
	String myArray[];

	ObjectChoiceField choice;



//	setTitle("Select Interest Rate");


	/**
	* Declare LoginMenuItem class
	**/
	class InterestMenuItem extends MenuItem {
		public InterestMenuItem() {
			super("Interest", 10, 20);
		}
		public void run() {
			Dialog.inform("Your Interest is: " + Double.toString(interestCalc()));
		}
	}

/**
* Declare ClearMenuItem class
**/
	class TotalMenuItem extends MenuItem {
		public TotalMenuItem() {
			super("Total", 27, 1);
		}

		public void run() {
			Dialog.inform("Your Total is: " + Double.toString(totalInt()));
		}
	}

	MenuItem _result = new MenuItem("Exit" , 1000,1000)
	{
	  public void run()

	  {

		Dialog.alert("Have a nice day :) ! "+Double.toString(exit()));

	  }
	};


	public double exit()

    {
        Dialog.alert("Have a nice day :) !");
        System.exit(0);
        return 0;
    }

	public BankInterest() {



		// this sets the title
		setTitle(title);

		logo = Bitmap.getBitmapResource("logo.png");

		bitmap = new BitmapField(logo, Field.FIELD_HCENTER);
		bitmap.setBitmap(logo);
		add(bitmap);


		add(new SeparatorField());



		// define three Field control elements
		amountField = new EditField("Enter amount: $", "");
//		interestField = new EditField("Enter % interest:", "");
		yearField = new EditField("Enter year(s):", "");
		add(new SeparatorField());


		myArray = new String[]{"5","4","3","2","1"};
		choice = new ObjectChoiceField("Select Interest Rate: ",myArray);


		// add three Field control elements
		add(amountField);
//		add(interestField);
		add(choice);
		add(yearField);

		add(new SeparatorField());


		// define and setchangelistener for buttons Interest
		interestButton = new ButtonField("Interest Only", ButtonField.CONSUME_CLICK | ButtonField.FIELD_HCENTER );
		add(interestButton);
		interestButton.setChangeListener(new FieldChangeListener(){
			public void fieldChanged( Field arg0, int arg1 ) {
	        	Dialog.alert("The interest is $"+Double.toString(interestCalc()));
	        	f.formatCurrency(interestCalc(),"CAD");
			}
		});

		// define and setchangelistener for buttons Total
		totalButton = new ButtonField("Total", ButtonField.CONSUME_CLICK | ButtonField.FIELD_HCENTER );
		add(totalButton);
		totalButton.setChangeListener(new FieldChangeListener(){
			public void fieldChanged( Field arg0, int arg1 ) {
	        	Dialog.alert("The total is $"+Double.toString(totalInt()));
	        	f.formatCurrency(totalInt(),"CAD");
			}
		});


		interestButton = new ButtonField("Interest", ButtonField.CONSUME_CLICK );
		interestButton.setChangeListener(this);

	    totalButton = new ButtonField("Total", ButtonField.CONSUME_CLICK);
		totalButton.setChangeListener(this);


		RadioButtonGroup rbg = new RadioButtonGroup();
        add(new RadioButtonField("Option 1",rbg,true));
        add(new RadioButtonField("Option 2",rbg,false));




	}


	// define menu
	protected void makeMenu(Menu menu, int instance) {
		super.makeMenu(menu, instance);

		menu.add(new InterestMenuItem());
		menu.add(new TotalMenuItem());
		menu.add(_result);

	}

	//Declaring instance variables
	double cInterest = 0;
	double pInterest = 0;
	double tTotal = 0;

	/* Calculation for the total interest  */
    /*              I = prt                */

	protected double interestCalc()
	{
		try {
	    double tAmount = Double.parseDouble(amountField.getText());
	//    double tInterest = Double.parseDouble(choice.getSelectedIndex());
	    double tYear = Double.parseDouble(yearField.getText());
	    int rate = choice.getSelectedIndex();


	    pInterest = rate/100;
	    cInterest = (double)((tAmount * pInterest) * tYear);


		}
		catch (NumberFormatException ex)
		{
			Dialog.alert("Invalid input");

		}
		return cInterest;
	}


	/* Calculating total */
	 /*   Interest + amount  */
	protected double totalInt()
	{
		try {

	    double tAmount = Double.parseDouble(amountField.getText());

	    tTotal =(double)(tAmount + cInterest);
		}

		catch (NumberFormatException ex)
		{
			Dialog.alert("Invalid input");

		}


	    return tTotal;
	}

	public boolean onSavePrompt()
    {
        return false;
    }




	public void fieldChanged(Field arg0, int arg1) {
		// TODO Auto-generated method stub

	}
}