//package PS5;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.text.*;
import java.util.*;

public class BusFrame extends JFrame
{
    private JButton calcButton, quitButton;
    private JComboBox parkingBox;       // Change in Logan parking cost
    private JTextField timeField;       // Change in bus travel time
    private JTextField objectiveField;
    private BusDrawing drawArea;
    private BusSystem bSystem;       // Need to instantiate
    private JPanel buttonHolder;
    private Container conPane;
    public static final int X = 700;     // Size of drawArea
    public static final int Y = 500;     // Size of drawArea
    
    public static void main(String[] args)
    {
        BusFrame frame = new BusFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.show();
    }
    
    public BusFrame()
    {
        conPane = getContentPane();
        conPane.setLayout(new BorderLayout());
        setSize(X, Y + 100);      // Allow 100 pixels for buttons at bottom
        setTitle("Logan Express Bus");
        buttonHolder = new JPanel();
        
        // Create bus system object
        bSystem= new BusSystem(0.0, 0.0, 1.1);
        
        // Create and add the drawing area. Send bSystem as arg to get results
        drawArea = new BusDrawing(bSystem);
        drawArea.setSize(X, Y);
        conPane.add(drawArea, BorderLayout.CENTER);
        
        // Label for text field
        JLabel textFieldLabel = new JLabel("Enter bus time:");
        buttonHolder.add(textFieldLabel);
        
        // Text field to enter time.
        timeField = new JTextField(4);
        buttonHolder.add(timeField);
        
        // Label for combo box
        JLabel textFieldLabel3 = new JLabel("Enter parking:");
        buttonHolder.add(textFieldLabel3);
        
        // Combo box to select parking costs
        String[] parkingOptions = {"0.00", "2.00", "4.00", "6.00", "8.00", "10.00"};
        parkingBox= new JComboBox(parkingOptions);
        buttonHolder.add(parkingBox);
        
        // Label for text field
        JLabel textFieldLabel2 = new JLabel("Enter objective:");
        buttonHolder.add(textFieldLabel2);
        
        // Text field to enter objective weight.
        objectiveField = new JTextField(6);
        buttonHolder.add(objectiveField);
        
        // Create and add buttons
        calcButton = new JButton("Calculate");
        buttonHolder.add(calcButton);
        calcButton.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                // Read the current value of the combo box
                String parkingString = (String)parkingBox.getSelectedItem();
                double parking= Double.parseDouble(parkingString);
                parking= 100*parking;       // Convert from dollars to cents
                
                // Read the current value of the text boxes
                double time = Double.parseDouble(timeField.getText().trim());
                double obj = Double.parseDouble(objectiveField.getText().trim());
                
                // Invoke the calculation method
                bSystem.setParam(time, parking, obj);
                bSystem.optimize();
                // Generate vector of lines to draw on BusDrawing
                drawArea.busLines();
                // Then repaint the canvas here. Drawing paintComponents will actually render
                drawArea.repaint();
            }
        });
        
        quitButton = new JButton("Quit");
        buttonHolder.add(quitButton);
        quitButton.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                System.exit(0);
            }
        });
        conPane.add(buttonHolder, BorderLayout.SOUTH);
    }
}