/* Lesley Hogan
 * July 22nd 2003
 * IfLabTwo.java
 * More If-Else practice
 * Homework from:
 * http://chortle.ccsu.edu/cs151/Notes/chap13/progExercises13.html
 */

package net.bunnie.dos;

import java.text.DecimalFormat;
import net.bunnie.*;

public class IfLabTwo {
    public static void main (String[] args) {

		// deli variables
		int overnight;
		int shipping;
		double price;
		String total;
		String item;

		// temp variables
		double efficiency = 0;
		double airT;
		double steamT;

		// microwave variables
		int items;
		double heatingTime;

		// general variables
		KeyboardReader r = new KeyboardReader();
		DecimalFormat dec = new DecimalFormat("$0.00");
		DecimalFormat decT = new DecimalFormat("$0,000");
		DecimalFormat decS = new DecimalFormat("0.00");
		boolean loop = false;
		boolean fullLoop = true;
		int switchInt = 0;

		// array of options
		String[] optionList = new String[5];
		String optionString = "";
		int options = optionList.length - 1;
		optionList[0] = "0: View this menu";
		optionList[1] = "1: Order from Sam and Ella's Delicatessen";
		optionList[2] = "2: Calculate steam engine efficiency";
		optionList[3] = "3: Calculate heating time";
		optionList[options] = "" + options + ": Press " + options + " to escape";

		int i = 0;
		do {
			optionString += optionList[i];
			optionString += "\n";
			i++;
		}
		while (i < optionList.length);

		// welcome message
		System.out.print("-----------------------------------\n");
		System.out.print("   I F - E L S E   L A B   T W O   \n");
		System.out.print("          L .   H O G A N          \n");
		System.out.print("                 _______           \n");
		System.out.print("       |    |       |        |     \n");
		System.out.print("       |    |       |        |     \n");
		System.out.print("       |____|       |        |     \n");
		System.out.print("       |    |       |        |     \n");
		System.out.print("       |    |       |              \n");
		System.out.print("       |    |    ___|___     +     \n\n");
		System.out.print("-----------------------------------\n\n\n");

		// print out list of options and let user choose
		// what they want to do in the program
		do {
			switch(switchInt) {
			case 0:
				// show menu
				System.out.print("What would you like to do today?\n");
				System.out.print(optionString + "\n");
				switchInt = r.readInt();
				break;
			case 1:
				// buy eggs
				System.out.print("Enter the item: ");
				item = r.readLine();
				System.out.print("Enter the price: ");
				price = r.readDouble();
				System.out.print("Overnight (1 for yes, 2 for no): ");
				overnight = r.readInt();

				if (price < 10) {
					shipping = 2;
				}
				else {
					shipping = 3;
				}

				if (overnight == 1) {
					shipping = shipping + 5;
				}

				total = dec.format(shipping + price);

				System.out.print("\nInvoice: \n" + item + ": " + dec.format(price) + "\nShipping: " + dec.format(shipping) + "\nTotal: " + total + "\n\n");

				switchInt = 0;
				break;
			case 2:
				System.out.print("Enter the air temperature: ");
			    airT = r.readDouble();
				System.out.print("Enter the steam temperature: ");
				steamT = r.readDouble();

				if (steamT < 373) {
					efficiency = 0;
				}
				else {
					efficiency = (1.0 - (airT / steamT));
				}

				System.out.print("\nEfficiency: " + decS.format(efficiency) + "\n\n");

				switchInt = 0;
				break;
			case 3:
				System.out.print("Enter the number of items: ");
			    items = r.readInt();
				System.out.print("Enter the heating time for one item: ");
				heatingTime = r.readDouble();

				if (items <= 0) {
					System.out.print("\nWhy would you want to heat no items?\n\n");
				}
                //Finished 8/12/04 -.-;;
				else if (items > 3) {
				    Echo.e("\nThe microwave won't heat more than 3 items at a time.\n\n");
				}
				else {
                    if (items == 2) {
                        heatingTime = heatingTime / 2 + heatingTime;
                    }
                    Echo.e("\nHeat for " + decS.format(heatingTime) + "\n\n");
                }
				switchInt = 0;
				break;
			default:
				fullLoop = false;
				// exit program
				break;
			}
		}
		while (fullLoop == true);
	}
}