import uwcse.graphics.*;
import java.awt.Color;
import java.awt.Font;

/**
 * Display in a graphics window a traffic light and a menu.
 */

public class TrafficLightView{

    // Menu
    // Upper left corner
    public static final int XM = 10;
    public static final int YM = 350;

    // size
    public static final int MENU_WIDTH=65;
    public static final int MENU_HEIGHT=20;

    // Graphics elements
    private GWindow window;
    private Oval[] lights;

    /**
     * Create the graphics window and the menu
     */
    public TrafficLightView(TrafficLightController c)
    {
        // Create the display
        window = new GWindow("Traffic light",500,500);
        window.setExitOnClose();
        // Send all the window events to the controller
        window.addEventHandler(c);
        // Background
        window.add(new Rectangle(0,0,500,500,Color.blue,true));

        // Create the menu
        drawMenu();

        // Create the lights
        drawLights();

        // Show it
        window.doRepaint();
    }

    /**
     * Update the display of the lights according to the model
     */
    public void updateDisplay(TrafficLightModel model)
    {
        // Turn off all of the lights

        // Get the color of the model and update the colors
        // of the array lights accordingly

        // Show the new light
        window.doRepaint();
    }

    /**
     * Translate a mouse click location (x,y) into a MouseClickLocation object
     * (see the definition of the MouseClickLocation class)
     */
    public MouseClickLocation findClickLocation(int x, int y)
    {
        // Inactive area if not on the menu

        // The click is on one of the button items
    }

    /**
     * Start the animation (If we followed the MVC framework to the letter,
     * we should have put this piece of code
     * in the controller. But that way we can make use of the timer features
     * of the GWindow class)
     *
     * Start firing an event every dt milliseconds
     */
    public void startTimerEvents(int dt)
    {
        window.startTimerEvents(dt);
    }

    /**
     * Stop firing an event at regular intervals
     */
    public void stopTimerEvents()
    {
        window.stopTimerEvents();
    }

    /**
     * Draw the lights in the window
     */
    private void drawLights()
    {
        // Create the lights (red,yellow,green)
        // box of the traffic light
        window.add(new Rectangle(200,50,100,300,Color.black,true));
        // lights
    }

    /**
     * Draw the menu
     */
    private void drawMenu()
    {
        // Create the buttons
        // Upper left corner of each button
        int x = XM;
        int y = YM;
        String[] labels = {"Red", "Yellow", "Green", "Animate"};
        Font font = new Font("Times",Font.BOLD,15);
        for(int i=0; i<4; i++)
        {
            window.add(new Rectangle(x,y,MENU_WIDTH,MENU_HEIGHT,Color.black,false));
            // label
            window.add(new TextShape(labels[i],x+5,y,Color.black,font));
            // next menu item
            y+=MENU_HEIGHT;
        }

    }
}