/**
 *	Class: CSC-123
 *
 *	Project 1 part 2: Temp Convert
 *
 */

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*; //Scanner

public class Project1Part2 implements ActionListener 
	{
	    JFrame converterFrame;
	    JPanel converterPanel;
	    JTextField tempCelsius;
	    JLabel celsiusLabel, fahrenheitLabel, kelvinLabel, rankineLabel;
	    JButton convertTemp;

    public Project1Part2() 
    	{
	        //Create and set up the window.
	        converterFrame = new JFrame("Convert Celsius to Fahrenheit, Kelvin and Rankine");
	        converterFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	        converterFrame.setSize(new Dimension(120, 140));
	        //Create and set up the panel. 
	        converterPanel = new JPanel(new GridLayout(2, 4));
			
	
	        //Add the widgets.
	        addWidgets();
	
	        //Set the default button.
	        converterFrame.getRootPane().setDefaultButton(convertTemp);
	
	        //Add the panel to the window.
	        converterFrame.getContentPane().add(converterPanel, BorderLayout.CENTER);
	
	        //Display the window.
	        converterFrame.pack();
	        converterFrame.setVisible(true);
   		}

    /**
     * Create and add the widgets.
     */
    private void addWidgets() 
    	{
	        //Create widgets.
	        tempCelsius = new JTextField(2);
	        celsiusLabel = new JLabel("Celsius", SwingConstants.LEFT);
	        convertTemp = new JButton("Convert");
	        fahrenheitLabel = new JLabel("Fahrenheit", SwingConstants.LEFT);
			kelvinLabel = new JLabel("Kelvin", SwingConstants.LEFT);
			rankineLabel = new JLabel("Rankine", SwingConstants.LEFT);
		
	        //Listen to events from the Convert button.
	        convertTemp.addActionListener(this);
	
	        //Add the widgets to the container.
	        converterPanel.add(tempCelsius);
	        converterPanel.add(celsiusLabel);
	        converterPanel.add(convertTemp);
	        converterPanel.add(fahrenheitLabel);
	        converterPanel.add(kelvinLabel);
	        converterPanel.add(rankineLabel);
	        
	        celsiusLabel.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
	        fahrenheitLabel.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
	        rankineLabel.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
	        kelvinLabel.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
    	}

    public void actionPerformed(ActionEvent event) 
    	{
	        //Parse degrees Celsius as a double and convert to Fahrenheit Rankine and Kelvin.
	        int tempFahr = (int)((Double.parseDouble(tempCelsius.getText())) * 1.8 + 32);
	        fahrenheitLabel.setText(tempFahr + " Fahrenheit");
	        int tempRankine = (int)(((((Double.parseDouble(tempCelsius.getText())) * 1.8)+32)+459.67));
	        rankineLabel.setText(tempRankine + "  Rankine");
	        int tempKelvin = (int)((Double.parseDouble(tempCelsius.getText())) + 273.15);
			kelvinLabel.setText(tempKelvin + "  Kelvin");                        
    	}

    /**
     * Create the GUI and show it.  
     */
    private static void createAndShowGUI() 
    	{
	        //Make sure we have nice window decorations.
	        JFrame.setDefaultLookAndFeelDecorated(true);
	
	        tempConvert converter = new tempConvert();
    	}
    
    public static void doCli()
    	{
    		    	
    		Scanner keyboard = new Scanner(System.in); //Creates Scanner object for input.
    		double output;
			int celsuis;
	
			System.out.print("Enter Temp in Degrees Celsuis:  ");
			celsuis = keyboard.nextInt();
			output = (celsuis * 1.8 + 32);
			System.out.println("Farenheit: " + output); // Output for Farenheit Temp Convert.

	        output = (((celsuis * 1.8)+32)+459.67);
	        System.out.println("Rankine:   " + output); // Output for Rankine Temp Convert.

			output = (celsuis + 273.15);
			System.out.println("Kelvin:    " + output); // Output for Kelvin Temp Convert.
    
    	}
    
    public static void doGuiYesNo()
		{ 		
			//Create the frame
		    String title = "Frame Title";
		    JFrame frame = new JFrame(title);
		    
		    // Create a component to add to the frame
		    JComponent comp = new JTextArea();
		    
		    // Add the component to the frame's content pane;
		    // by default, the content pane has a border layout
		    frame.getContentPane().add(comp, BorderLayout.CENTER);
		    
			// Modal dialog with OK button
		    String message = "Do you want to convert Temps with GUI?";
		    JOptionPane.showMessageDialog(frame, "You are now going to choose either gui or CLI");
		    
		    // Modal dialog with yes/no button
		    int answer = JOptionPane.showConfirmDialog(frame, message);
		    if (answer == JOptionPane.YES_OPTION) 
		    	{
		      		createAndShowGUI(); // User clicked YES.
		   	 	} 
		    	else if (answer == JOptionPane.NO_OPTION) 
		    
				doCli(); // User clicked NO.
		}
    public static void main(String[] args) 
    
    	{
	        //Schedule a job for the event-dispatching thread:
	        //creating and showing this application's GUI.
	        javax.swing.SwingUtilities.invokeLater(new Runnable() 
	        {
	            public void run()
	            	{
						doGuiYesNo();	
	
            		}
          
        	});
    	}
	}