#include <iostream>
using namespace std;
int main()
{
	//requirement #1.
	//initial integers.
	float depth = 0,
		width = 0,
		heigth = 0;
	float area1 = 0,
		area2 = 0,
		combined_area = 0;
	double total_price = 0;
	char compute;
	//initial input.
	while (true)
	{
		cout << "=====================" << endl;
		cout << "GLASS SHOWER ESTIMATE" << endl;
		cout << "=====================" << endl;

		//enter the depth, width, heigth.
		cout << "Depth: ";
		cin >> depth;
		cout << "Width: ";
		cin >> width;
		cout << "Heigth: ";
		cin >> heigth;
		//measure the areas.

		area1 = depth * heigth;
		area2 = width * heigth;
		combined_area = area1 + area2;
		//requirement #2.
		float price_unit;
		if (combined_area >= 6000)
		{
			price_unit = .99;
			cout << "Unit Price: " << price_unit << endl;
			total_price += price_unit * combined_area;
			//cout<<combined_area;
		}
		else if (combined_area >= 3000)
		{
			price_unit = 1.29;
			cout << "Unit Price: " << price_unit << endl;
			total_price += price_unit * combined_area;
			//cout<<combined_area;
		}
		else
		{
			price_unit = 1.49;
			cout << "Unit Price: " << price_unit << endl;
			total_price += price_unit * combined_area;
		}

		//requirement #3.
		//thickness of glass.
		float thickness;
		float surcharge;
		cout << "Thickness: ";
		cin >> thickness;
		if (thickness >= .5)
		{
			surcharge = .5;
			//checking the surcharge.
			cout << surcharge * 100 << "%" << " for " << surcharge << " thickness." << endl;
			total_price += surcharge * total_price;
		}
		else if (thickness >= .375)
		{
			surcharge = .20;
			cout << surcharge * 100 << "%" << " for " << surcharge << " thickness." << endl;
			total_price += surcharge * total_price;
		}

		//requirement #4.
		//using code to find possible discount.
		double discount_code;
		float discount;
		cout << "Discount Code (enter 0 if no code): ";
		cin >> discount_code;
		if (discount_code == 112233)
		{
			discount = .20 * total_price;
			//checking discount given.
			cout << "20% Discount applied." << endl;
			total_price = total_price - discount;
		}
		else if (discount_code == 111222)
		{
			discount = .10 * total_price;
			cout << "10% Discount applied." << endl;
			total_price = total_price - discount;
		}
		else if (discount_code == 0)
		{
			cout << "There's no discount" << endl;
			//gotta recheck this output.
		}
		else
		{
			cout << "Invalid Discount Code!" << endl;
		}
		//requirement #5.
		//output will be shown
		//and the program will ask the user if he wants to
		//add another number.
		cout << "The installed price is $ " << total_price << endl;
		cout << "Would you like to compute another one? (y/n)";
		cin >> compute;
		if (compute == 'y' || compute == 'Y')
		{
			depth = 0,
				width = 0,
				heigth = 0;
                area1 = 0,
				area2 = 0,
				combined_area = 0;
                total_price = 0;
			cout << "                               " << endl;
		}
		else
		{
			break;
		}
	}
	system("PAUSE");
	return 0;
}