#include <iostream>
#include <iomanip>
#include <string>
using namespace std;

struct Item
{
	string name;
	double price;
	int quantity;
};

void addItem(Item* shoppingCart);
void listItems(Item* shoppingCart);
void sumPrices(Item* shoppingCart);

int main()
{
	char choice;
	Item* shoppingCart = new Item[100];

	cout << "Shopping Cart is now available for use. \n";
	cout << "Please choose between the following choices: \n\n";
	cout << "1.  Add Item:  for adding new items to the cart\n";
	cout << "2.  List Shopping Cart Contents:  see what you have!\n";
	cout << "3.  Total Price:  how much does it add up to?\n";
	cout << "4.  Quit:  You're done here.\n";

	cout << "Please enter your choice now:  \n";
	cin >> choice;

	switch (choice)
	{
		case '1': addItem(shoppingCart);
			break;
		case '2': listItems(shoppingCart);
			break;
		case '3': sumPrices(shoppingCart);
			break;
		case '4': cout << "Goodbye!\n";
			break;
		default:  cout << "You did not enter a valid choice! \n";
	}


return 0;
}

/************************************************
 * 	This is the addItem function		*
 ************************************************/
void addItem(struct Item* shoppingCart)
{

		for(int i = 0; i < 100; i++)
		{
		cout << "Please enter the new item Name: \n";
		cin.ignore();
		getline(cin, shoppingCart[i].name);
		cout << "Please enter the new item Price: \n";
		cin >> shoppingCart[i].price;
		cout << "Please enter the new item Quantity: \n";
		cin >> shoppingCart[i].quantity;

		while(shoppingCart[i].name != " ");
		}

return;
}

/************************************************
 * 	This is the listItems function		*
 ************************************************/
void listItems(struct Item* shoppingCart)
{
		cout << fixed << showpoint << setprecision(2) << "\n";
		for(int i = 0; i < 100; i++)
		{
		cout << "Item " << i << " name: " << shoppingCart[i].name << ".\n";
		cout << "Item " << i << " price: " << shoppingCart[i].price << ".\n";
		cout << "Item " << i << " quantity: " << shoppingCart[i].quantity << ".\n";
		while (shoppingCart[i].name != " ");
		}

return;
}

/************************************************
 * 	This is the sumPrices function		*
 ************************************************/
void sumPrices(struct Item* shoppingCart)
{
	cout << fixed << showpoint << setprecision(2) << "\n";
	double sumTotal = 0.00;

		for(int i = 0; i < 100; i++)
		{
		sumTotal += (shoppingCart[i].quantity)*(shoppingcart[i].price);

		while(shoppingCart[i].name != " ");
		}



	cout << "Your total is: $" << sumTotal << " for items currently in your cart.\n";

return;
}