Inventory Processing

// Inventory Processing.cpp : Defines the entry point 4 the console application.
//

//1st I make sure I have the headers files I need
#include "stdafx.h"
#include <iostream>
#include <fstream>
#include <string>
#include <sstream>
#include <iomanip>
#include <vector>
#include <stdlib.h>

using namespace std;

double calcProductsNonTax(string, double, string isTax, int);
double calcProductsTax(string, double, string isTax, int);
double calcTax(string, double, string isTax, int);

bool isValid(int);


int main()
{

	//2nd I make sure I can open the file. I use 140-grades code as a reference

	ifstream infile;
	ofstream outputfile;
	string line; //one line of text
	string token; //ehhh i will just try with this...

	string receiptName;

	int tokenCount = 0;

	cout << "Enter the name of your receipt" << endl;
	getline(cin, receiptName);
	receiptName = receiptName + ".txt";
	cout << "your receipt name is " << receiptName << endl;

	infile.open("Minimart-Inventory.txt"); //oops I 4got the .txt and it gave me an error message XD
	outputfile.open(receiptName);

	int i = 0;

	string priceTemp[26]; //to be converted

	string item[26];
	double price[26];
	string tax[26];

	//double helpMe;

	//menu variables
	string enterAnother = "y";
	int userNum;
	double total = 0;
	double totalTax = 0;
	double grandTotalTax = 0;
	double grandTotal = 0;

	string nonTaxItem[1000];
	int nonTaxNumItems[1000];
	double nonTaxPrice[1000];
	string nonTaxTax[1000];

	string taxItem[1000];
	int taxNumItems[1000];
	double taxPrice[1000];
	string taxTax[1000];

	int iNonTax = 0;
	int iTax = 0;
	int units;
	int totalUnits = 0;
	int totalOrdersTax = 0;
	int totalOrdersNonTax = 0;

	bool isValidCode;

	cout << "below are available items you can purchase" << endl;
	cout << endl;

	if (!infile)
	{
		cout << "Could not open file to read. Ending Program" << endl;
		return -1;
	}

	while (!infile.eof()) //will return falses if you aren't at the the end of a file. so, it needs to true by placing ! 4 actions to keep occuring
	{
		getline(infile, line); //would need #include string
							   //debugging // cout << "line: " << line << endl; //would need #include string
		stringstream ss(line);

		while (getline(ss, token, ' '))
		{
			switch (tokenCount)
			{
				tokenCount = 0;
			case 0:
				cout << "* * * * * * * * * * * * * * * * * " << endl;
				cout << i << ") ";
				cout << "Item: " << token;
				item[i] = (token);
				break;
			case 1:
				cout << "; Price: " << token;
				priceTemp[i] = (token);
				break;
			case 2:
				cout << "; Taxability: " << token << endl;
				tax[i] = (token);
			}
			tokenCount++;
		}
		i++;
		tokenCount = 0;

	}

	for (int y = 0; y < 26; y++)
	{
		price[y] = atof(priceTemp[y].c_str());
		//cout << price[y] << endl; //debug if it is stored
	}

	//cout << "done with inputting data from file... time to convert!" << endl;
	cout << endl;
	cout << "- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -" << endl;
	cout << "above are available items you can purchase" << endl;
	cout << "input the corresponding number to the item to make your purchase" << endl;
	cout << "* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * " << endl;

	//debug if the items are still there
	/*
	for (int e = 0; e < 26; e++)
	{
	cout << item[e] << endl;
	cout << price[e] << endl;
	cout << tax[e] << endl;
	}
	*/

	while (enterAnother == "y")
	{
		cout << "Enter your number (0-25): ";
		cin >> userNum;

		isValidCode = isValid(userNum);

		while (isValidCode == false)
		{
			cout << "re-enter please" << " ";
			cin >> userNum;
			isValidCode = isValid(userNum);
		}

		if (tax[userNum] == "N")
		{
			nonTaxItem[iNonTax] = item[userNum];
			nonTaxPrice[iNonTax] = price[userNum];
			nonTaxTax[iNonTax] = tax[userNum];

			cout << "You ordered this item: ";
			cout << nonTaxItem[iNonTax] << " ";
			cout << nonTaxPrice[iNonTax] << " ";
			cout << nonTaxTax[iNonTax] << " " << endl;


			cout << "how many units of this item do you want? ";
			cin >> units;
			while (units < 0)
			{
				cout << "Invalid, enter a number that is positive: ";
				cin >> units;
			}
			cout << endl;
			totalUnits = totalUnits + units;
			//cout << "you ordered this many units " << units << endl;
			nonTaxNumItems[iNonTax] = units;

			iNonTax++;

			total = calcProductsNonTax(item[userNum], price[userNum], tax[userNum], units);
			cout << "Total is (from main) " << "$" << total << endl;

			totalOrdersNonTax = totalOrdersNonTax + 1;
			cout << "this is totalOrdersNonTax " << totalOrdersNonTax << endl;


		}
		else if (tax[userNum] == "T")
		{
			taxItem[iTax] = item[userNum];
			taxPrice[iTax] = price[userNum];
			taxTax[iTax] = tax[userNum];

			cout << "You ordered this item: ";
			cout << taxItem[iTax] << " ";
			cout << taxPrice[iTax] << " ";
			cout << taxTax[iTax] << " " << endl;


			cout << "how many units of this item do you want? ";
			cin >> units;
			cout << endl;
			totalUnits = totalUnits + units;
			//cout << "you ordered this many units " << units << endl;
			taxNumItems[iTax] = units;

			iTax++;

			totalTax = calcTax(item[userNum], price[userNum], tax[userNum], units);
			total = calcProductsTax(item[userNum], price[userNum], tax[userNum], units);
			cout << "Total is (from main) " << setprecision(2) << fixed << "$" << total << endl;

			totalOrdersTax = totalOrdersTax + 1;
			cout << "This is the totalOrdersTax " << totalOrdersTax << endl;

			grandTotalTax = grandTotalTax + totalTax;
		}

		cout << endl;
		grandTotal = grandTotal + total;
		cout << "Grand Total Tax is " << setprecision(2) << fixed << "$" << grandTotalTax << endl;
		cout << "Grand total is (w/o tax)" << setprecision(2) << fixed << "$" << grandTotal << endl;
		//cout << "The total number of items you bought are " << totalUnits << endl;
		cout << "* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * " << endl;
		cout << "do you want to continue another purchase?" << endl;
		cout << "(Press y to continue or press n to end then press enter)" << endl;
		cin >> enterAnother;
		cin.ignore();
		cout << "- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -" << endl;

		if (!(enterAnother == "y"))
		{
			cout << "Program ending, Here's you receipt saved as " << receiptName << endl;
			cout << "These are your purchased items: " << endl;
			outputfile << "These are your purchased items: " << endl;
			grandTotal = grandTotal + grandTotalTax;

			int u = 0;
			while (u < totalOrdersNonTax)
			{
				cout << nonTaxItem[u] << " ";
				outputfile << nonTaxItem[u] << " ";

				cout << "x" << nonTaxNumItems[u] << " ";
				outputfile << "x" << nonTaxNumItems[u] << " ";

				cout << setprecision(2) << fixed << "$" << nonTaxPrice[u] << " ";
				outputfile << setprecision(2) << fixed << "$" << nonTaxPrice[u] << " ";

				cout << nonTaxTax[u] << " " << endl;
				outputfile << nonTaxTax[u] << " " << endl;

				u++;
			}

			int o = 0;
			while (o < totalOrdersTax)
			{
				cout << taxItem[o] << " ";
				outputfile << taxItem[o] << " ";

				cout << "x" << taxNumItems[o] << " ";
				outputfile << "x" << taxNumItems[o] << " ";

				cout << setprecision(2) << fixed << "$" << taxPrice[o] << " ";
				outputfile << setprecision(2) << fixed << "$" << taxPrice[o] << " ";

				cout << taxTax[o] << " " << endl;
				outputfile << taxTax[o] << " " << endl;;

				o++;
			}
			cout << endl;
			outputfile << endl;
			cout << "Here's the final tax cost " << setprecision(2) << fixed << "$" << grandTotalTax << endl;
			outputfile << "Here's the final tax cost " << setprecision(2) << fixed << "$" << grandTotalTax << endl;

			cout << "Here's the final cost with tax added " << setprecision(2) << fixed << "$" << grandTotal << endl;
			outputfile << "Here's the final cost with tax added " << setprecision(2) << fixed << "$" << grandTotal << endl;

			cout << "Thank you for your online order." << endl;
			outputfile << "Thank you for your online order." << endl;

		}

	}

	infile.close();
	outputfile.close();

	return 0;
}

double calcProductsNonTax(string item, double priceInDollars, string isTax, int numOfItems)
{
	double total;

	total = priceInDollars * numOfItems;
	//cout << "The total is (from function)" << setprecision(2) << fixed << "$" << total << endl;

	return total;
}

double calcProductsTax(string item, double priceInDollars, string isTax, int numOfItems)
{
	double total;

	total = priceInDollars * numOfItems;
	//cout << "The total is (from function)" << setprecision(2) << fixed << "$" << total << endl;

	return total;
}

double calcTax(string item, double priceInDollars, string isTax, int numOfItems)
{
	double tax;
	tax = priceInDollars * 0.06 * numOfItems;
	cout << "The tax for this item is " << setprecision(2) << fixed << "$" << tax << endl;
	return tax;
}

bool isValid(int userNum)
{
	while (userNum < 0 || userNum > 25)
	{
		cout << "Invalid, enter a number from 0-25: ";
		return false;
	}
	return true;
}