Alexis new Shop 2

#include <iostream>
#include <iomanip>
#include <fstream>
#include <string>
#include <sstream>
#include <vector>
#include <stdio.h>
using namespace std;

//Variables
int shopSize;
int orders = 0;
int numbers[150];
//We use orders as a counter, in order to know when we should stop looking at the array

//Structures
struct itemEntry {
	int itemNumber;
	string name;
	double cost;
	int quantity;
};

//Dynamic Memory for shop and cart
itemEntry * shop;
itemEntry * cart;

//Functions
bool Read(); //Reads from the .csv and puts it into the shop arrays
void Display(); //Displays the receipt
int search(int match, itemEntry *list); //Returns the array LOCATION of the barcode (item number)
void printCart();
void writeFile();

int main() {
	//Calls read to put the data from the csv into the shop arrays
	Read();

	int userItemNum; //value the user inputs into the console to tell us what product # he wants
	int userItemAmount;  //value the user inputs into the console to tell us how many of the product he wants
	int arrayNum; // a position variable, where the value is held in the array location wise
	string userInput = "";
	bool keepGo = true;
	cout << "at any time, enter cart to view your cart" <<endl;
	//loop keeps going until keepGo breaks
	while (keepGo) {
		cout << "Enter the Item Number" << endl;
		//takes the users input, checks if its cart, and stores it in userItemNum
		cin >> userInput;
		if (userInput == "cart") {
			printCart();
		}
		stringstream(userInput) >> userItemNum;

		if (userItemNum == 0) { //escape loop, finished buying
			keepGo = false; //this is the break condition for the while loop
		}
		//searches for the position in the array the product is in and stores it in arrayNum
		arrayNum = search(userItemNum, shop);
		if (arrayNum == -1) {
			cout << "Error, product not found" << endl;
		}
		else { //if the product was found
			   //check if there's a duplicate in the cart
			int storage = shop[arrayNum].quantity;
			int duplicate = search(userItemNum, cart);
			if (duplicate != -1) {
				storage = storage - cart[duplicate].quantity;
			}
			   //print product information
			cout << "Product name is: " << "Product " << (arrayNum + 1) << endl;
			cout << "Price per unit is: " << shop[arrayNum].cost << endl;
			cout << "amount in stock is: " << storage << endl;

			//asks the user how many they want until its a valid number
			do {
				cout << "How many would you like?" << endl;
				if (storage == 0) {
					cout << "We are out of stock of " << "Product " << (arrayNum + 1) << endl;
					userItemAmount = 0;
				}
				else {
					//takes the users input, checks if its cart, and stores it in userItemAmount
					cin >> userItemAmount;
					if (userItemAmount > storage) { //check if the request is larger than the stock
						cout << "There is not enough available please re-enter " << endl;
					}
				}
			} while (userItemAmount > storage); //keeps asking for an amount that is less than the storage
			if (duplicate != -1) {
				cart[duplicate].quantity = cart[duplicate].quantity + userItemAmount;
			}
			else {
				cart[orders].itemNumber = userItemNum; //puts in the cart the barcode of the product
				cart[orders].name = shop[arrayNum].name;
				cart[orders].cost = shop[arrayNum].cost;
				cart[orders].quantity = userItemAmount; //puts in the cart the amount of product bought
				numbers[orders] = arrayNum;
				orders++; //increases the shopping cart size counter
			}
		}
	}
	Display(); //displays receipt
	cout << "press enter to quit" << endl;
	cin >> userInput;
}

//linear search looking for the location of the product within the array using itemNumber
int search(int match, itemEntry *list) { //the parameter 'match' is the user's inputted bar code (item number)
	for (int i = 0; i < shopSize; i++) { //both arrays are size shopSize so it loops up to then
		if (match == list[i].itemNumber) { //if 'match' is equivalent to the array value stored at i, then return i
			return i;
		}
	}
	return -1; //this happens when we've looped through the entire array and didn't find a match
}

bool Read() {
	//array values
	int itemNu;//value that goes into the array
	string nam = "";//value that goes into the array
	double pric;//value that goes into the array
	int amoun;//value that goes into the array

	string translate;//value we read from the file to be translated / discarded

	//File Opener
	ifstream inFile;
	int a = 0;//counter used to parse through the array
	inFile.open("C:\\Users\\Miguel\\Desktop\\ProductData.csv"); //*change destination later*
	if (!inFile) { //file didn't open
		cout << "error! Couldn't open file!";
		return false;// terminate with error
	}

	//getLine( SOURCE, Variable you're putting the value in, and a 'delimiter' (where the line stops) )
	//Catches the number of data entries in the csv file
	getline(inFile, translate, '\n');
	stringstream(translate) >> shopSize; //use StringStream to feed int variable 'shopSize' numbers from our string 'translate'
	//Initializes the Dynamic Memory allocations for the shop inventory and the cart inventory
	shop = new itemEntry[shopSize];
	cart = new itemEntry[shopSize];
	//goes through the headers, and does nothing with them
	getline(inFile, translate, ','); //The source is 'inFile', because that's what we named our file opener
	getline(inFile, translate, ','); //The variable we're storing these lines in is 'translate'
	getline(inFile, translate, ','); //The delimiter is ',' that is, it stops reading after the comma
	getline(inFile, translate, '\n'); //The .csv has 4 columns for each row, so after the 4th get line the delimiter would be '\n'

	while (inFile.good()) { //goes through file while it's not broken
		//Obtain untranslated values from the CSV and translates immedietly
		getline(inFile, translate, ',');//first value in the row is the item number
		stringstream(translate) >> itemNu;
		getline(inFile, nam, ',');//second value in the row is the name of the product
		getline(inFile, translate, ',');//third value in the row is the price
		stringstream(translate) >> pric;
		getline(inFile, translate, '\n');//final is the amount, and then we go to a new line
		stringstream(translate) >> amoun;

		//fill the array with translated values
		shop[a].itemNumber = itemNu;
		//shop[a].name = nam;
		shop[a].cost = pric;
		shop[a].quantity = amoun;
		//new row so increase 'a' by one so we can still put the values in the right location of the array
		a++;
	}
	inFile.close();
	return true;
}

void Display() {
	string infoOne; //name
	string infoTwo; //Street Address
	string infoThree; //City, Zipcode
	double billb = 0;
	getline(cin, infoOne);
	//takes input for name
	cout << "Enter Name" << endl;
	getline(cin, infoOne);
	//takes input for street address
	cout << "Enter Street Address" << endl;
	getline(cin, infoTwo);
	//takes input for city zipcode
	cout << "Enter City, State Zipcode" << endl;
	getline(cin, infoThree);

	//opens an output file to print this too, every line is repeated to print to console and to the text file
	ofstream myfile;
	myfile.open("C:\\Users\\Miguel\\Desktop\\Invoie.txt");
	//formatting and output
	cout << "Customer Name: " << infoOne << endl;
	myfile << "Customer Name: " << infoOne << endl;
	cout << "Customer Address : " << infoTwo << endl;
	myfile << "Customer Address : " << infoTwo << endl;
	cout << "                   " << infoThree << endl;
	myfile << "                   " << infoThree << endl;
	printCart();
	myfile << "Item Number	Item Name	Qty	Unit cost	Total" << endl;
	myfile << "......................................................................." << endl;
	myfile << "..............." << endl;
	for (int i = 0; i < orders; i++) { //uses the counter, 'orders' to know when stop reading from the array
		double itemCash = 0; //total cost of this product (amount * price)
		myfile << "Item Number " << i << "	";
		myfile << "Product " << numbers[i];
		myfile << cart[i].quantity << "	";
		myfile << cart[i].cost << "			";
		//Calculate total cost of this individual product
		itemCash = cart[i].quantity * cart[i].cost;
		myfile << itemCash << endl;
		//adds the total cost of this individual product to the total bill
		billb = billb + itemCash;
	}
	myfile << "......................................................................." << endl;
	myfile << "..............." << endl;
	myfile << "						Total:$" << billb << endl;

	myfile.close();
	writeFile();
	delete[] shop;
	delete[] cart;
}
void writeFile() {
	//remove("C:\\Users\\Miguel\\Desktop\\ProductData.csv");
	ofstream csvfile;
	csvfile.open("C:\\Users\\Miguel\\Desktop\\ProductData.csv");
	csvfile << shopSize << endl;
	csvfile << "Item Number, Name, Cost, Qty" << endl;
	for (int i = 0; i < shopSize; i++) {
		int take = 0;
		int findtake = search(shop[i].itemNumber, cart);
		if (findtake != -1) {
			take = cart[findtake].quantity;
		}
		csvfile << shop[i].itemNumber << ",";
		csvfile << "Product " << numbers[i] << ",";
		csvfile << shop[i].cost << ",";
		csvfile << shop[i].quantity - take << endl;
	}
}
void printCart() {
	double bill = 0; //Bill size
	cout << "shopping cart:" << endl;
	cout << "Item Number	Item Name	Qty	Unit cost	Total" << endl;
	cout << "......................................................................." << endl;
	cout << "..............." << endl;
	for (int i = 0; i < orders; i++) { //uses the counter, 'orders' to know when stop reading from the array
		double itemCash = 0; //total cost of this product (amount * price)
		cout << "Item Number " << i << "	";
		cout << "Product " << numbers[i] << "	";
		cout << cart[i].quantity << "	";
		cout << cart[i].cost << "			";
		//Calculate total cost of this individual product
		itemCash = cart[i].quantity * cart[i].cost;
		cout << itemCash << endl;
		//adds the total cost of this individual product to the total bill
		bill = bill + itemCash;
	}
	cout << "......................................................................." << endl;
	cout << "..............." << endl;
	cout << "						Total:$" << bill << endl;
}