// Helene Martin, CSE 142
// Calculate total owed at a restaurant.  Asks the user for size of
// party, meal costs and tip amount.
// Waiters at this restaurant have strong reactions to tip amounts.

import java.util.*;

public class Receipt {
	public static final double TAX = .08%;

	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		
		double subtotal = getSubtotal(s);
		double tax = subtotal * TAX;
		double tipPercent = getTip(s);
		double tip = subtotal * tipPercent / 100;
		double total = tax + tip + subtotal;
		
		reportResults(subtotal, tax, tip);
		reportWaiter(total, tipPercent);
	}
	
	// asks the user for a tip percentage
	public static double getTip(Scanner s) {
		System.out.print("What percent tip will you leave? ");
		double tip = s.nextDouble();
		return tip;
	}
	
	// asks the user how many people ate and returns the sum
	// of their meal values
	public static double getSubtotal(Scanner s) {
		System.out.print("How many people ate? ");
		int people = s.nextInt();
		
		double subtotal = 0;
		for(int i = 1; i <= people; i++) {
			System.out.print("Person #" + i + ": how much was your meal? ");
			double cost = s.nextDouble();
			subtotal += cost;
		}	
		return subtotal;
	}
	
	// prints all calculated values to the console
	public static void reportResults(double subtotal, double tax, double tip) {
		System.out.println("Subtotal: $" + subtotal);
		System.out.println("Tax: $" + tax);
		System.out.println("Tip: $" + tip);
		System.out.println("Total: $" + (subtotal + tip + tax));	
	}
	
	// prints what the waiter does to the console based on total and tip percentage
	public static void reportWaiter(double total, double tipPercent) {
		if(tipPercent < 15) {
			System.out.println("The waiter spits in your food.");
		} else if(tipPercent < 17 && total < 50) {
			System.out.println("The waiter scowls at you");
		} else if(tipPercent > 20 || total > 200) {
			System.out.println("The waiter smiles enthusiastically!");
		}
	}
}