GrItem.cpp

#include "stdafx.h"
#include "StoreInfo.h"
#include <stdio.h>
#include <iostream>
#include <fstream>
#include <algorithm>
#include <vector>
#include <iomanip>
#include <map>

using namespace std;

// Tax rate catagories
const double alcoholTax = 0.08;
const double foodTax = 0.05;
const double genMerchandiseTax = 0.07;
const double medicineTax = 0.04;

struct cost {
    double alcTax = 0.0, food = 0.0, genMerch = 0.0, meds = 0.0;// Total taxes collected for each tax bracket
    double totalTax = alcTax + food + genMerch + meds;// Total Taxes to be accessed later

    // Variables used in the accessor functions at the bottom
    double costBeforeTax = 0.0, costAfterTax = 0.0, custSaving = 0.0, totRegPrice = 0.0, totSalePrice = 0.0;
};

// Constructor
GrItem::GrItem(string name, int quantity, float regPrice, float salePrice, bool onSale, TaxCategory taxCategory){

    name = name;
    quantity = quantity;
    regPrice = regPrice;
    salePrice = salePrice;
    onSale = onSale;
    taxCategory = taxCategory;

};

// Default constructor
GrItem::GrItem() {
}

// Get the total cost before the tax
void getTotBeforeTax(double regPrice, double salePrice, bool onSale){
    cost itemTotalCost;
    if (onSale == 1){
        itemTotalCost.costBeforeTax += salePrice;
        itemTotalCost.totSalePrice += salePrice;
    }
    else{
        itemTotalCost.costBeforeTax += regPrice;
        itemTotalCost.totRegPrice += regPrice;
    }
}

// Get the total after tax
void getTotAfterTax(float costBeforeTax, float totalTax){
    cost itemTotalCost;
    itemTotalCost.costAfterTax = costBeforeTax + totalTax;
}

// Get the total amount of tax for each category
void getTotTaxCategory(double regPrice, double salePrice, bool onSale, TaxCategory taxCategory){// These different values are determined by what enum tax category they are
    cost itemTotalCost;
    // Adds values to the total alcohol tax gathered
    if (taxCategory = TaxCategory::alcohol){
        if (onSale = true)
            itemTotalCost.alcTax += salePrice * alcoholTax;
        itemTotalCost.alcTax += regPrice * alcoholTax;
    }

    if (taxCategory = TaxCategory::food){
        if (onSale = true)
            itemTotalCost.alcTax += salePrice * foodTax;
        itemTotalCost.alcTax += regPrice * foodTax;
    }

    if (taxCategory = TaxCategory::genMerchandise){
        if (onSale = true)
            itemTotalCost.alcTax += salePrice * genMerchandiseTax;
        itemTotalCost.alcTax += regPrice * genMerchandiseTax;
    }

    if (taxCategory = TaxCategory::medicine){
        if (onSale = true)
            itemTotalCost.alcTax += salePrice * medicineTax;
        itemTotalCost.alcTax += regPrice * medicineTax;
    }
}

// Get customer savings (total of all differences between regular price and sale price for items that are currently on sale)
void getCustSave(double totRegPrice, double totSalePrice, bool onSale){
    cost itemTotalCost;
    if (onSale == 1){
        itemTotalCost.custSaving = totRegPrice - totSalePrice;
    }

}

// Function that is called to sort by name
bool sortByName(const GrListItem &lhs, const GrListItem &rhs){
    return lhs.name < rhs.name;
}

// Function that is called to sort by quantity
bool sortByQuantity(const GrListItem &lhs, const GrListItem &rhs){
    return lhs.quantity < rhs.quantity;
}

// Function that is called to sort by regular price
bool sortByRegPrice(const GrListItem &lhs, const GrListItem &rhs){
    return lhs.regPrice < rhs.regPrice;
}

// Function that is called to sort by sale price
bool sortBySalePrice(const GrListItem &lhs, const GrListItem &rhs){
    return lhs.salePrice < rhs.salePrice;
}

const int listSize = 20;
// Main method
int main() {

    string input;// Holds each line from the imported textfile temporarily
    string fileName;// Name of grocery list user wishes to use
    fstream nameFile;// File stream object
    GrListItem itemList[listSize];// Creates a list of objects. These objects are each item on the list and hold related information
    std::vector<GrListItem> vectorList(itemList, itemList + listSize);
    cost itemTotalCost;

    // Requests data from user
    cout << "What is the name of the grocery list you wish to use? " << endl;
    getline(cin, fileName);// Retrieves filename from user and applies string to grListName

    // Tests to see if file can be opened
    fstream testFile(fileName, ios::out);
    if (testFile.fail()){
        cout << "ERROR: Cannot open indicated file.\n";
        return 0;
    }

    // Open data file
    nameFile.open(fileName, ios::in);
    // Read data and apply variables to an object
    if (nameFile){
        int count = 0;
        while (nameFile && count < listSize){

            // Read the name
            getline(nameFile, input, '#');
            vectorList[count].name = input;// Assigns item name to the object inside itemList.name

            // Read quantity
            getline(nameFile, input, '$');
            vectorList[count].quantity = atoi(input.c_str());// Casts string to an int

            // Read regular price
            getline(nameFile, input, '$');
            vectorList[count].regPrice = stof(input.c_str());// Casts string to a float

            // Read sale price
            getline(nameFile, input, '#');
            vectorList[count].salePrice = stof(input.c_str());

            // Read on sale bool
            getline(nameFile, input, '#');
            if (input == "Y")// If the item is on sale, the onSale var returns true
                vectorList[count].onSale = true;
            else
                vectorList[count].onSale = false;

            // Read tax category
            getline(nameFile, input, '#');
            if (input == "alcohol") {
                vectorList[count].taxCategory = TaxCategory::alcohol;;
            }
            else if (input == "general merchanise") {
                vectorList[count].taxCategory = TaxCategory::genMerchandise;
            }
            else if (input == "food") {
                vectorList[count].taxCategory = TaxCategory::food;;
            }
            else if (input == "medicine") {
                vectorList[count].taxCategory = TaxCategory::medicine;;
            }
            else {
                std::cout << "BAD TAX CATEGORY" << std::endl;
            }

            // These functions are called as many times as there are objects in the array.
            getTotBeforeTax(vectorList[count].regPrice, vectorList[count].salePrice, vectorList[count].onSale);
            getTotTaxCategory(vectorList[count].regPrice, vectorList[count].salePrice, vectorList[count].onSale, vectorList[count].taxCategory);
            getTotAfterTax(itemTotalCost.costBeforeTax, itemTotalCost.totalTax);

            count++;
        }
        // Close file
        nameFile.close();
    }
    else
        cout << "ERROR: Cannot open file.\n";

    // Sort array
    // OFFER USER TO CHOOSE HOW THEY WOULD LIKE TO SORT THEIR LIST!!! For extra points
    // Maybe
    std::sort(vectorList.begin(), vectorList.end(), sortByName);

    // For loop that creates a receipt on the screen
    // Formatting may or may not be correct
    for (int i = 0; i != listSize; ++i){
        std::cout << vectorList[i].name << endl;// Print item name
        std::cout << std::setfill(' ') << std::setw(20);
        std::cout.fill(' ');

        std::cout << std::setfill(' ') << std::setw(5);// Print item quantity
        std::cout << vectorList[i].quantity << endl;
        std::cout.fill(' ');

        std::cout << std::setfill(' ') << std::setw(5);// Print regular price of item
        std::cout << vectorList[i].regPrice << endl;// Adjust preci
        std::cout.fill(' ');

        std::cout << std::setfill(' ') << std::setw(5);// Print sale price of item
        std::cout << vectorList[i].salePrice << endl;
        std::cout.fill(' ');

        if (vectorList[i].onSale == 1){
            std::cout << 'Y' << endl;// Print 'Y' if vectorList[i] is on sale
            std::cout.width(3);
            std::cout.fill(' ');
        }
        else {
            std::cout << 'N' << endl;// Print 'N' if vectorList[i] is not on sale
            std::cout.width(3);
            std::cout.fill(' ');
        }

        std::cout << vectorList[i].taxCategory << endl;// Print tax category
        std::cout.width(20);
        std::cout.fill(' ');
    }

    // Print details of purchase below list of bought items

    // NOTE: THESE VALUES ARE STORED IN THE STRUCT ABOVE main()
    // Display total before tax
    // Display total after tax
    // Display customer Savings

}