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

int main()
{
    char member[5] = " ";
    char mealcode;
    char menucode[5] = " ";
    float price = 0.0, price2 = 0.0, DISCprice = 0.0, afterdisc = 0.0, finalprice = 0.0;
    float km = 0;
    int quantity;
    float discount, tax, delivery = 0.0, aftertax,aftermemdisc;
    const float memdisc = 0.05;
    char applymem[5] = " ";

    cout << "******************************************************************************************\n";
    cout << "                                   WELCOME TO SEDAP.COM                                   \n";
    cout << "******************************************************************************************\n";
    cout << "\n";
    cout << "                                   breakfast    = B\n";
    cout << "                                   lunch        = L\n";
	cout << "                                   dinner       = D\n";
	cout << "\n";
	cout << "Please select your category : ";
    cin >> mealcode;

   
    // MEALCODE & MENUCODE 
    
    switch (mealcode)
    {
        case 'B':
        case 'b':
        	
        	cout <<"\n";
        	cout << "                          Nasi Lemak  = NL\n";
        	cout << "                          Sandwich    = SD\n";
        	cout << "                          Mee Goreng  = MG\n";
        	cout <<"\n"; 
        	
            cout << "Please select your menu code (NL/SD/MG): ";
            cin >> menucode;

            if (strcmp(menucode, "NL") == 0 || strcmp(menucode,"nl") == 0)
                price = 5.00;
            else if (strcmp(menucode, "SD") == 0 || strcmp(menucode,"sd") == 0)
                price = 4.50;
            else if (strcmp(menucode,"MG") == 0 || strcmp(menucode, "mg") == 0)
                price = 3.00;
        break;

        case 'L':
        case 'l':
        	cout <<"\n"; 
        	cout << "                        Chicken Rice      = CR\n";
        	cout << "                        Nasi Tomato       = NT\n";
        	cout << "                        Nasi Ayam Penyet  = NA\n";
        	cout <<"\n"; 
        	
            cout << "Please select your menu code (CR/NT/NA): ";
            cin >> menucode;

            if (strcmp(menucode, "CR") == 0 || strcmp(menucode, "cr") == 0)
                price = 6.50;
            else if (strcmp(menucode, "NT") == 0 || strcmp(menucode, "nt") == 0)
                price = 7.50;
            else if (strcmp(menucode, "NA") == 0 || strcmp(menucode, "na") == 0)
                price = 8.00;
        break;

        case 'D':
        case 'd':
        	
        	cout <<"\n"; 
        	cout << "                       Western Set            = WS\n";
        	cout << "                       Nasi Goreng Kampung    = NG\n";
        	cout << "                       Kuey Teow Tomyam       = KT\n";
        	cout <<"\n"; 
        	
            cout << "Please select your menu code (WS/NG/KT): ";
            cin >> menucode;

            if (strcmp(menucode, "WS") == 0 || strcmp(menucode, "ws") == 0)
                price = 11.00;
            else if (strcmp(menucode, "NG") == 0 || strcmp(menucode, "ng") == 0)
                price = 7.00;
            else if (strcmp(menucode, "KT") == 0 || strcmp(menucode, "kt") == 0)
                price = 8.50;
        break;

        default:
            cout << "Invalid mealcode!";
            
    }

    
    // INPUT 
    
    cout << "Are you a member (YES/NO)  : ";
    cin >> member;
    cout << "Delivery distance (km)     : ";
    cin >> km;
    cout << "Quantity                   : ";
    cin >> quantity;

    
    // SUBTOTAL
    
    price2 = (price * quantity);

    
    // DISCOUNT
    
    if (price2 >= 30.00)
        discount = 0.10;
    else if (price2 >= 15.00)
        discount = 0.05;
    else
        discount = 0.0;

    DISCprice = price2 * discount;  
    afterdisc = price2 - DISCprice;

    
    // TAX 
    
    if (mealcode == 'B'|| mealcode == 'b')
        tax = 0.03;
    else if (mealcode == 'L' || mealcode == 'l')
	    tax = 0.05;
    else if (mealcode == 'D'|| mealcode == 'd')
        tax = 0.06;
        
    aftertax = afterdisc + (afterdisc * tax);

    
    // MEMBERSHIP DISCOUNT
    
    if (strcmp(member, "YES") == 0 || strcmp(member, "yes") == 0)
    {
        aftermemdisc = aftertax - (aftertax * memdisc);
    }
    else
    {
      cout << "_________________________________________________________________________________________\n";
      cout << "\n";
      cout << "You are not a member. Do you want to apply for membership for RM20? (YES/NO): ";
      cin >> applymem;

      if (strcmp(applymem, "YES") == 0 || strcmp(applymem, "yes") == 0)
      {
	  
        aftertax = aftertax + 20;  
        cout << "Membership fee RM20 added.\n";
        cout << "You will get discout for next order.\n";
       }
       
       aftermemdisc = aftertax ;
    }
    
    
    // DELIVERY 
    
    if ( km <= 5)
        delivery = km * 1.50;

    else if ( km <= 10)
        delivery = (5 * 1.50) + ((km - 5) * 2.30);

    else if ( km <= 20)
        delivery = (5 * 1.50) + (5 * 2.30) + ((km - 10) * 2.80);

    else if (km > 20)
        delivery = (5 * 1.50) + (5 * 2.30) + (10 * 2.80) + ((km - 20) * 3.00);

    finalprice = aftermemdisc + delivery;

    
    // OUTPUT
   
    cout << "_________________________________________________________________________________________\n";
    cout << "                               CUSTOMER ORDER DETAILS                                    \n";
    cout << "_________________________________________________________________________________________\n";

    
    cout << "Quantity         : " << quantity << endl;
    cout << "Price per piece  : RM "<< fixed << setprecision(2) << price << endl;
    cout << "Delivery charge  : RM " << fixed << setprecision(2) << delivery << endl;
    cout << "Tax rate         : RM " << fixed << setprecision(2) << (tax * afterdisc) << endl;
    cout << "discount         : RM " << fixed << setprecision(2) << DISCprice << endl; 
	 
    if (strcmp(member, "YES") == 0 || strcmp(member, "yes") == 0)
        cout << "Member discount  : RM " << fixed << setprecision(2) << (aftertax* memdisc)<< endl;
    else
        cout << "Member discount  : RM 0.00\n";
        
    if (strcmp(applymem, "YES") == 0 || strcmp(applymem, "yes") == 0)
        cout << "Apply Membership : RM 20.00\n";
        
    cout << "Total price      : RM " << fixed << setprecision(2) << finalprice << endl;
   
    cout << "\n";
    cout << "                  ======================================================\n";
    cout << "                  ||                                                  ||\n";
    cout << "                  ||                 * THANK YOU *                    ||\n";
    cout << "                  ||            We appreciate your order!             ||\n";
    cout << "                  ||                                                  ||\n";
    cout << "                  ======================================================\n";

     return 0;
}