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

const float BALCONY_PRICE = 25.00;
const float ORCHESTRA_PRICE = 50.00;
const float BOX_PRICE = 75.00;
const float PREMIUM_PRICE = 20.00;
const float PARKING_PRICE_PER_DAY = 10.00;
const int MAX_DAYS_ALLOWED = 5;

//---------------------------------------------------------------------------
// Name: GetYorN
// Parameters: Questions, string, input, the YN question to ask
// Returns: char; the character the user entered.  Must be 'y' or 'Y' or 'n' or 'N'
// Purpose: This function returns the user's response to a yes/no question
//---------------------------------------------------------------------------
char GetYorN(const string Question)
{
char Choice;

     cout << Question << "  Enter Y or N: ";
     cin >> Choice;
     Choice = toupper(Choice);

     while (Choice != 'Y' && Choice != 'N')
     {
        cout << "Invalid character. Please enter either (Y) for yes or (N) for no.\n";
        cout << Question << "  Enter Y or N: ";
        cin >> Choice;
        Choice = toupper(Choice);
     }

     return (Choice);
}

//---------------------------------------------------------------------------
// Name: ParkingPass
// Parameters: none
// Returns: float; the cost of the pass ordered
// Purpose: This function returns the cost of parking pass that a participant wants
//---------------------------------------------------------------------------
float ParkingPass()
{
char ParkingPassChoice = '\0';
int ParkingDays = 0;
float ParkingPassPrice = 0.0;

     ParkingPassChoice = GetYorN ("Would you like to buy parking passes?");

     if (ParkingPassChoice == 'Y')
     {
        cout << "Parking passes are $10 per day." << endl;
        cout << "How many days of parking would you like to buy (1-"
             << MAX_DAYS_ALLOWED << "): ";
        cin >> ParkingDays;

        while(ParkingDays < 1 || ParkingDays > MAX_DAYS_ALLOWED)
        {
            cout << "Please enter a valid number of days (1-"
                 << MAX_DAYS_ALLOWED << ") or enter 0 to cancel your purchase: ";
            cin >> ParkingDays;
        }
        ParkingPassPrice = PARKING_PRICE_PER_DAY * ParkingDays;
     }

    return ParkingPassPrice;
}

//---------------------------------------------------------------------------
// Name: CalculatePrice
// Parameters:  TicketName:  string, pass by value, name of ticket type
//              PricePerTicket: float, pass by value, cost of one ticket
//              NumTickets, int, input, number of tickets to purchase.
// Returns: float - the total cost of the tickets purchased
// Purpose: This function calculates and returns the cost of the tickets;
//          It also prints out that cost to the user.
//---------------------------------------------------------------------------
float CalculatePrice(const string TicketName, const float PricePerTicket, const float NumTickets)
{
float Amount;

    Amount = NumTickets * PricePerTicket;

    cout << "\n--------------------------------------------------------------------------\n";
    cout << "You have chosen to order " << noshowpoint << setprecision(0) << NumTickets
         << " "  << TicketName << " tickets.\n";
    cout << fixed << showpoint << setprecision(2);
    cout << "Each ticket costs $" << PricePerTicket << ".\n";
    cout << "The price for these tickets is $" << Amount << endl;
    cout << "--------------------------------------------------------------------------\n\n";
    return Amount;
}

//---------------------------------------------------------------------------
// Name: AddPremium
// Parameters: Price, float, input/output, current cost of the tickets
//             It gets updated if the user selects the premium upgrade
//             NumTickets, const int, input, the number of tickets.
// Returns: none
// Purpose: This function adds the cost of the premium upgrade, if the patron
//          chooses to purchase it
//---------------------------------------------------------------------------
void AddPremium(float &Price, const int NumTickets)
{
char Choice;

    cout << "\n----------------------------------------------------------------------------------------------\n";
    cout << "You have chosen to order Box seat tickets.\n";
    cout << "You can add a premium package that includes a souvenier and free refreshments.\n"
         << "This costs $" << PREMIUM_PRICE<< " per ticket.\n";
    cout << "----------------------------------------------------------------------------------------------\n\n";

    Choice = GetYorN("Would you like to add the premium package?");

    if (Choice == 'Y')
    {
        Price = Price + NumTickets * PREMIUM_PRICE;
        cout << "Your Box seats with the premium upgrade cost $"
             << fixed << showpoint << setprecision(2) << Price
             << " for " << noshowpoint << setprecision (0) << NumTickets << " tickets.\n";
    }
}

//---------------------------------------------------------------------------
// Name: MainMenu
// Parameters: none
// Returns: none
// Purpose: This function prints the main menu describing various tickets
//          offered by the Walton Arts Center
//---------------------------------------------------------------------------
void MainMenu()
{
    char MoreInfo;

    cout << "The Walton Arts Center offers its patrons an assortment\n"
         << "of tickets to fit different budgets.\n"
         << "There are three kinds of seats that the Arts Center offers:\n"
         << "Balcony, Orchestra, and Box seats.\n\n";

    MoreInfo = GetYorN("Would you like more information about each ticket type?");

    if(MoreInfo == 'Y')
    {
        cout << "The Balcony tickets are the cheapest, because the tickets"
             << " are located the furthest from stage.\n";

        cout << "The Orchestra tickets are more expensive, because the tickets allow "
             << "participants to sit closer to the stage.\n";

        cout << "The Box seat tickets are the most expensive, "
             << "because the seats are very comfortable and private.\n"
             << "Box seat purchasers can also add other options (souvenirs and refreshments)"
             << " to their purchase.\n\n";
   }
}

//---------------------------------------------------------------------------
// Name: TicketType
// Parameters: none
// Returns: char; the selection of ticket to be purchased
// Purpose: This function asks the user which ticket they would like to buy
//---------------------------------------------------------------------------
char GetTicketType()
{
    char TicketType;

    cout << "\nWhich ticket would you like to purchase next?\n";
    cout << "Type B for Balcony, O for Orchestra, or X for Box: ";
    cin >> TicketType;
    TicketType = toupper(TicketType);   //convert to uppercase

    //User I/O error-checking
    while(TicketType != 'B' && TicketType != 'O' && TicketType != 'X')
    {
        cout << TicketType << " is invalid input.\n";
        cout << "Type B for Balcony, O for Orchestra, or X for Box: ";
        cin >> TicketType;
        TicketType = toupper(TicketType);
    }

    return TicketType;
}

//---------------------------------------------------------------------------
// Name: GetNumTickets
// Parameters: NumTickets, integer, reference, passes back the number of tickets requested
// Returns: none
// Purpose: This function asks the user how many tickets would like to buy
//---------------------------------------------------------------------------
void GetNumTickets (int &NumTickets)
{
   cout << "Enter the number of tickets you would like to buy: ";
   cin >> NumTickets;
   while(NumTickets < 0) //User I/O error-checking
   {
       cout << "Please enter a non-negative number of tickets: ";
       cin >> NumTickets;
   }
}


//---------------------------------------------------------------------------
//  This is the main program that you need to write
//---------------------------------------------------------------------------
int main ()
{
// Variable Declarations
char Choice = '\0';   // what the user enters
int NumTickets = 0;   // how many tickets they want to buy
float Price = 0.0;    // the price of one set of tickets
float Total = 0.0;    // the total price of all tickets


   // Print your name and UAID

   // Loop until the user is done
       // Print the main menu describing the tickets offered

       // Ask the user type what ticket they want to purchase next

       // Find out how many tickets they want

       // Find out the price of the tickets
       // If the user selects Box seats, ask if they want the premium package

       // Add the ticket price to a running total

       // Ask if they want to continue (Y or N)

   // When the loop is done
   // Sell the user parking pass

   // Print out the total amount of all the tickets and parking passes
   // that the participant has purchased to 2 decimal places, with a $

   return 0;
}