carLot.cpp

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

//date specified for user input
struct Date
{
    int day;
    int month;
    int year;
};

struct Car
{
    string make;                                        //car make
    string model;                                       //car model
    int year;                                           //year car made
    Date datePurchased;                                 //date car purchased by lot
    double purchasePrice;                               //price car purchased for by lot
    bool isSold;                                        //was car sold
    Date dateSold;                                      //date car was sold
    double salePrice;                                   //price car sold for
};

void carInfo(vector<Car>& carVect, int count);          //function to add car details to list (vector)
void lotInv(vector<Car>& carVect, int count);           //lists the lots current inventory(all non-sold)
void profitMonth(vector<Car>& carVect, int count);      //calculates a profit based on month and year selected

int main()
{
    vector<Car> carVect;                                //vector of structs of Car, lot inventory tracker
    int menu;                                           //menu selection input
    int count;                                          //positional tracker

    do
    {
        cout << "Please view the allowable menu options.\n";
        cout << "1. Add Entry - Input of car info.\n";
        cout << "2. List - Lists current invetory on site.\n";
        cout << "3. Profit - Displays profit for a given month/year.\n";
        cout << "4. Exit - Terminates Program.\n";
        cout << "Please enter a menu choice 1 - 4: " << endl;
        cin >> menu;
        cin.ignore();

        //verify that valid menu choice is selected.
        while ((menu > 4) || (menu < 1))
        {
            cin.clear();
            cout << "ERROR" << endl;
            cout << "Please enter a choice between 1 and 4: ";
            cin >> menu;
            cin.ignore();
        }

        switch (menu)
        {
            case 1:
                carInfo(carVect, count);
                count++;
                break;

            case 2:
                lotInv(carVect, count);
                break;

            case 3:
                profitMonth(carVect, count);
                break;

            case 4:
                return(0);

            }
        }while(1);

    return 0;
}

void carInfo(vector<Car>& carVect, int count)
{
    char sold;                      //was car sold

    //create element in vector for next inventory piece
    carVect.push_back(Car());

    cout << "Make: ";
    getline(cin, carVect[count].make);

    cout << "Model: ";
    getline(cin, carVect[count].model);

    cout << "Year: ";
    cin >> carVect[count].year;
    cin.ignore();


    cout << "Month of purchase (1 - 12): ";
    cin >> carVect[count].datePurchased.month;

    //validates that a correct number for month is entered
    while(carVect[count].datePurchased.month > 12 || carVect[count].datePurchased.month < 1)
    {
        cin.clear();
        cout << "ERROR" << endl;
        cout << "Please be sure to enter a valid numeric month.\n";
        cout << "Month: ";
        cin >> carVect[count].datePurchased.month;
        cin.ignore();
    }

    //enter the day for February
    if(carVect[count].datePurchased.month == 2)
    {
        cout << "Day (1-28): ";
        cin >> carVect[count].datePurchased.day;
        cin.ignore();

        while(carVect[count].datePurchased.day > 28 || carVect[count].datePurchased.day < 1)
        {
            cin.clear();
            cout << "ERROR" << endl;
            cout << "Please be sure to enter a valid date for February (1-28).\n";
            cout << "Day: ";
            cin >> carVect[count].datePurchased.day;
            cin.ignore();
        }
    }

    //enter the day for any month with 30 days
    else if(carVect[count].datePurchased.month == 4 || carVect[count].datePurchased.month == 6
            || carVect[count].datePurchased.month == 9 || carVect[count].datePurchased.month == 11)
    {
        cout << "Day (1-30): ";
        cin >> carVect[count].datePurchased.day;
        cin.ignore();

        while(carVect[count].datePurchased.day > 30 || carVect[count].datePurchased.day < 1)
        {
            cin.clear();
                cout << "ERROR" << endl;
                cout << "Please be sure to enter a valid date for the given month (1-30).\n";
                cout << "Day: ";
                cin >> carVect[count].datePurchased.day;
                cin.ignore();
        }
    }

    //enter the day for any month with 31 days
    else
    {
        cout << "Day (1-31): ";
        cin >> carVect[count].datePurchased.day;
        cin.ignore();

        while(carVect[count].datePurchased.day > 31 || carVect[count].datePurchased.day < 1)
        {
            cin.clear();
            cout << "ERROR" << endl;
            cout << "Please be sure to enter a valid date for the given month (1-31).\n";
            cout << "Day: ";
            cin >> carVect[count].datePurchased.day;
            cin.ignore();
        }
    }

    //year of purchase
    cout << "Year: ";
    cin >> carVect[count].datePurchased.year;
    cin.ignore();


    cout << "Price purchased: ";
    cin >> carVect[count].purchasePrice;
    cin.ignore();

    cout << "Has this vehicle been sold? (Y/N): ";
    cin >> sold;

    if(sold == 'Y' || sold == 'y')
    {
        carVect[count].isSold = true;
    }

    if(!(sold == 'Y' || sold == 'y'))
    {
        carVect[count].isSold = false;
    }

    cout << carVect[count].isSold << endl;

    if(carVect[count].isSold == true)
    {
        cout << "Month of sale (1 - 12): ";
        cin >> carVect[count].dateSold.month;

        //validates that a correct number for month is entered
        while(carVect[count].dateSold.month > 12 || carVect[count].dateSold.month < 1)
        {
            cin.clear();
            cout << "ERROR" << endl;
            cout << "Please be sure to enter a valid numeric month.\n";
            cout << "Month: ";
            cin >> carVect[count].dateSold.month;
            cin.ignore();
        }

        //enter the day for February
        if(carVect[count].dateSold.month == 2)
        {
            cout << "Day (1-28): ";
            cin >> carVect[count].dateSold.day;
            cin.ignore();

            while(carVect[count].dateSold.day > 28 || carVect[count].dateSold.day < 1)
            {
                cin.clear();
                cout << "ERROR" << endl;
                cout << "Please be sure to enter a valid date for February (1-28).\n";
                cout << "Day: ";
                cin >> carVect[count].dateSold.day;
                cin.ignore();
            }
        }

        //enter the day for any month with 30 days
        else if(carVect[count].dateSold.month == 4 || carVect[count].dateSold.month == 6
                || carVect[count].dateSold.month == 9 || carVect[count].dateSold.month == 11)
        {
            cout << "Day (1-30): ";
            cin >> carVect[count].dateSold.day;
            cin.ignore();

            while(carVect[count].dateSold.day > 30 || carVect[count].dateSold.day < 1)
            {
                cin.clear();
                cout << "ERROR" << endl;
                cout << "Please be sure to enter a valid date for the given month (1-30).\n";
                cout << "Day: ";
                cin >> carVect[count].dateSold.day;
                cin.ignore();
            }
        }

        //enter the day for any month with 31 days
        else
        {
            cout << "Day (1-31): ";
            cin >> carVect[count].dateSold.day;
            cin.ignore();

            while(carVect[count].dateSold.day > 31 || carVect[count].dateSold.day < 1)
            {
                cin.clear();
                cout << "ERROR" << endl;
                cout << "Please be sure to enter a valid date for the given month (1-31).\n";
                cout << "Day: ";
                cin >> carVect[count].dateSold.day;
                cin.ignore();
            }
        }

        //year of sale
        cout << "Year: ";
        cin >> carVect[count].dateSold.year;
        cin.ignore();

        cout << "Sale price: ";
        cin >> carVect[count].salePrice;
        cin.ignore();
    }

    cout << "\n\n";

}



void lotInv(vector<Car>& carVect, int count)
{
    cout << "Current lot inventory" << endl;
    cout << setw(15) << left << "Make" << "\t\t" <<"Model" << "\t\t" << "Year" << "\t\t" << "Purchase Date"
         << "\t\t" << "Purchase Price" <<   endl;

    for(int i = 0; i < carVect.size(); i++)
    {
        //only display cars that were NOT sold
        if(carVect[i].isSold == false)
        {
            cout << setw(15) << left << carVect[i].make << "\t\t" << carVect[i].model << "\t\t"
                 << carVect[i].year << "\t\t" << carVect[i].datePurchased.month << "/"
                 << carVect[i].datePurchased.day << "/" << carVect[i].datePurchased.year
                 << "\t\t" << "$" << showpoint << setprecision(2) << fixed << carVect[i].purchasePrice << endl;

            cout << endl;
        }
    }
}

void profitMonth(vector<Car>& carVect, int count)
{
    int Pmonth;                     //month selected to chart profits
    int Pyear;                      //year selected to chart profits
    double Ppurchase;               //adds up total purchase amounts for that month/year
    double Psold;                   //adds up all sold prices for month/year
    double profits;                 //calculated profits

    cout << "Generate a profit report based on date.\n";
    cout << "Month: ";
    cin >> Pmonth;
    cin.ignore();
    cout << "Year: ";
    cin >> Pyear;
    cin.ignore();

    for(int i = 0; i < carVect.size(); i++)
    {
        Ppurchase += carVect[i].purchasePrice;

        //parse vector based on month
        if(carVect[i].dateSold.month == Pmonth)
        {
            //parse vector based on year
            if(carVect[i].dateSold.year == Pyear)
            {
                Psold += carVect[i].salePrice;
            }
        }

    }

    profits = Psold - Ppurchase;    //calculated profits (sales - overhead)

    cout << "Total Profits for given month/year: " << endl;
    cout << "$" << showpoint << setprecision(2) << fixed << profits << endl;
    cout "\n\n";
}