package interfaces.JGUI;


import java.awt.*;

public class RestaurantPanel extends Panel
{
	Choice		m_foodType;
	Checkbox[]	m_rating;
	Checkbox[]	m_price;

	RestaurantPanel()
	{
		setLayout(new GridLayout(3, 1));
	    setBackground(Color.white);

		Panel p1, p2, p3;

		m_foodType = new Choice();
		m_foodType.addItem("Any");
		m_foodType.addItem("Thai");
		m_foodType.addItem("Indian");
		m_foodType.addItem("Chinese");
		m_foodType.addItem("Western");
		m_foodType.addItem("Fast-Food");

		p1 = new Panel();
		p1.setLayout(new FlowLayout(FlowLayout.LEFT));
		p1.add(new Label("FoodType: "));
		p1.add(m_foodType);
		add(p1);

		p2 = new Panel();
		p2.setLayout(new FlowLayout(FlowLayout.LEFT));
		p2.add(new Label("Rating: "));
		m_rating = new Checkbox[5];
		for (int i = 0; i < 5; i++)
		{
			p2.add(m_rating[i] = new Checkbox(" " + (i + 1)));
		}
		add(p2);

		p3 = new Panel();
		p3.setLayout(new FlowLayout(FlowLayout.LEFT));
		p3.add(new Label("Price: "));
		m_price = new Checkbox[4];
		p3.add(m_price[0] = new Checkbox(".. - $10"));
		p3.add(m_price[1] = new Checkbox("$10 - $20"));
		p3.add(m_price[2] = new Checkbox("$20 - $50"));
		p3.add(m_price[3] = new Checkbox("$50 - .."));
		add(p3);
		
		//Add panels to the Applet. 
		setLayout(new GridLayout(3, 1));		
		add(p1);
		add(p2);
		add(p3);
	}

	public String getPredicate()
	{
		String predicate = new String();
		String foodType = m_foodType.getSelectedItem();

		if (!foodType.equals("Any"))
		{
			predicate = Globals.selectedTable + ".foodtype = \"" + foodType + "\" AND";
		}

		String rating = new String();
		int i;
		for (i = 0 ; i < 5 ; ++i)
		{
			if (m_rating[i].getState())
				rating += " " + Globals.selectedTable + ".rating = " + i + " OR";
		}
		if (rating.length() != 0)
			predicate += " (" + rating.substring(0, rating.length() - 3) + ") AND";

		String price = new String();
		for (i = 0 ; i < 4 ; ++i)
		{
			if (m_price[i].getState())
				price += " " + Globals.selectedTable + ".price = " + i + " OR";
		}
		if (price.length() != 0)
			predicate += " (" + price.substring(0, price.length() - 3) + ") AND";

		return (predicate.length() == 0) ? 
			predicate : predicate.substring(0, predicate.lastIndexOf(" ") + 1); 
	}
}