package pr3;

import java.text.*;

public class Meal implements Comparable {

	private MainCourse mainCourse;
	private Drink drink;
	private SideOrder sideOrder;
	private Dessert dessert;
	private static DecimalFormat fmt = new DecimalFormat("0.00");

	public Meal(MainCourse mainCourse, Drink drink, SideOrder sideOrder,
			Dessert dessert) {
		this.mainCourse = mainCourse;
		this.drink = drink;
		this.sideOrder = sideOrder;
		this.dessert = dessert;
	}

	public double getPrice() {
		return mainCourse.getPrice();
	}

	public int getCalories() {
		return mainCourse.getCalories() + drink.getCalories()
				+ sideOrder.getCalories() + dessert.getCalories();
	}

	public int getTransFat() {
		return mainCourse.getTransFat() + drink.getTransFat()
				+ sideOrder.getTransFat() + dessert.getTransFat();
	}

	private String padRight(String s, int n) {
		while (s.length() < n)
			s = s + " ";
		return s;
	}

	private String padLeft(String s, int n) {
		while (s.length() < n)
			s = " " + s;
		return s;
	}

	private String padLeft(int val, int n) {
		return padLeft("" + val, n);
	}

	private String booleanString(boolean f, String trueString,
			String falseString) {
		if (f)
			return trueString;
		return falseString;
	}

	public int compareTo(Object obj) {
		Meal otherMeal = (Meal) obj;
		int myCal = getCalories();
		int otherCal = otherMeal.getCalories();
		if (myCal > otherCal)
			return 1;
		else if (myCal < otherCal)
			return -1;
		return 0;
	}

	public static String tableHeading() {
		return " price    cal  tr.fat  main course  drink(oz)"
				+ "    side order(org?) dessert(L,S)\n";
	}

	public String toString() {
		StringBuffer sb = new StringBuffer();
		sb.append(padLeft(fmt.format(getPrice()), 6));
		sb.append(padLeft(getCalories(), 7));
		sb.append(padLeft(getTransFat(), 8));
		sb.append("  ");
		sb.append(padRight(mainCourse.getName(), 13));
		sb.append(padRight(drink.getName() + "(" + drink.getSize() + ")", 13));
		sb.append(padRight(sideOrder.getName()
				+ booleanString(sideOrder.isOrganic(), "(Y)", "(N)"), 17));
		sb.append(padRight(dessert.getName()
				+ booleanString(dessert.isLarge(), "(L)", "(S)"), 12));
		return sb.toString();
	}

}