// Native_TotalsAndCounts.cpp : Defines the entry point for the console application.
/* ________________________________________________
Learning C++: Lesson 3
Running Totals & Counts
Ron Kessler
Created 12/29/2016

Native Version

This little program shows how to keep running totals and counts.

Run using CTL-F5
_________________________________________________
*/

#include "stdafx.h"
#include <iostream>
#include <string>

using namespace std;


int main ()
	{
		//---show a message
		cout << "Welcome to Lesson 3: Running Totals & Counts\n\n";
		
		//---define variable
		string whichProduct;
		int numItems = 0;       //track number of items purchased
		double itemPrice = 0;
		double totalDue = 0;    //track total spent

	while (true)            //this is a loop and lets them order as many things as they want
		{
			cout << "Enter item to purchase: ";
			getline(cin, whichProduct);

			numItems += 1;          //add 1 to the running count. Same as numItems = numItems + 1

			cout << "Now enter the price: ";
			cin >> itemPrice;   //get the price
			cin.ignore ();

			totalDue += itemPrice;  //add this price to the running total    
			cout << "\n\nPress 1 to add more items. Press 2 to check out.";

			string input;
			cin >> input;
			cin.ignore ();

			if (input == "2")
				break;
			
			system ("cls");
		}

	//---show output
	system ("cls");				//clear screen
	cout.precision (2);
	cout << "*********Summary of your order*********\n\n";
	cout << "You purchased " <<  numItems << " items today.";
	cout << " You owe me $" << fixed <<  totalDue << "\n\n";

	return 0;

	}