#include <iostream>
#include <stdlib.h>
using namespace std;

//Function Prototype
void displayMenu();
void userInterface();
void showPrice();
void booking();
void showReceipt();
void showSales();



//Global Variables
const int cSIZE = 5;
int customerID[cSIZE];
int numCustomer = 0;
int typeTicket, numAdult, numChild, totalPrice;
static int totalSales = 0;
char id = 'A';

//Constants Variables
const int normalAdult = 70;
const int normalChild = 60;
const int expressAdult = 120;
const int expressChild = 90;


int main() {
  userInterface();

  return 0;
}

void displayMenu() {
  cout << "Welcome to Amoosement Park Ticket Booking System!\n";
  cout << "------------------------------------------------\n";
  cout << "------------------------------------------------\n\n\n";
  cout << "Menu\n";
  cout << "1-" << " " << "Ticket Price" << endl;
  cout << "2-" << " " << "Book Ticket Now" << endl;
  cout << "3-" << " " << "Show Receipt" << endl;
  cout << "4-" << " " << "Show Sales" << endl;
  cout << "5-" << " " << "Exit" << endl;
}

void userInterface() {
  int option;

do{
  displayMenu();
  cout << "Enter your option: ";
  cin >> option;

  switch(option)
  {
      case 1:
        showPrice();
      break;


      case 2:

        numCustomer++;
        customerID[numCustomer] = numCustomer ;
        id++;
        booking();

        cout<< "Customer No: " << numCustomer << endl;

      break;

      case 3: //Show receipts
        showReceipt();
        break;

        case 4: // Show sales
          showSales();
          break;

          case 5:
          exit(0);
          break;

      default:
        cout << "Invalid input!"<<endl;
        break;
  }
}while(option!=5);

}

void showPrice() { //Show Price
  cout << "Amoosement Park\n";
  cout << "===========================================\n\n";
  cout << "Normal Ticket\n" << "Adult - RM" << normalAdult << "\nChild - RM" <<normalChild;
  cout << "\n\nExpress Ticket\n" << "Adult - RM" << expressAdult << "\nChild - RM" << expressChild <<"\n\n";
}

void booking() { //Start Booking

  if(numCustomer < cSIZE){
  cout<<"Amoosement Park Booking\n";
  cout<<"==========================\n\n";


  cout<<"Please pick the type of ticket (1-Normal Ticket / 2-Express Ticket)\n";
  cin>>typeTicket;

  while(typeTicket != 1 && typeTicket !=2) {
    cout<<"Please pick the type of ticket (1-Normal Ticket / 2-Express Ticket)\n";
    cin>>typeTicket;
  }

  if(typeTicket == 1) {
    cout<<"Normal Ticket\n\n";
    cout<<"Quantity\n";
    cout<<"================\n";
    cout<<"Adult: ";
    cin>>numAdult;
    cout<<"Child(4-11): ";
    cin>>numChild;

    totalPrice = ((numAdult*normalAdult) + (numChild*normalChild));
    cout<<"Total price: RM "<<(int)totalPrice<<endl;
    totalSales = totalSales + totalPrice;



  } else if(typeTicket == 2) {
    cout<<"Express Ticket\n\n";
    cout<<"Quantity\n";
    cout<<"================\n";
    cout<<"Adult: ";
    cin>>numAdult;
    cout<<"Child(4-11): ";
    cin>>numChild;


    totalPrice = ((numAdult*expressAdult) + (numChild*expressChild));
    cout<<"Total price: "<<(int)totalPrice<<endl;
    totalSales = totalSales + totalPrice;




  }
}else{
  cout<<"DATA IS FULL!" << endl;
}
}


void showReceipt() {
  cout<<"Customer ID: " << customerID[numCustomer] << " " << id << endl;
  cout<<"Adult: " << numAdult << endl;
  cout<<"Child: " << numChild << endl;
  cout<<"Total Price: "<< totalPrice << endl;
}

void showSales() {
  cout<<"Total sales: " <<endl;
  cout<<totalSales<<endl;
}