#include <iostream>
#include <stdlib.h>
using namespace std;
int main()
{
    int aqua, biogua, isiulang, esbatu, lpg3kg;
    int jmlh_aqua, jmlh_biogua, jmlh_isiulang, jmlh_esbatu, jmlh_lpg3kg;
    int harga_aqua, harga_biogua, harga_isiulang, harga_esbatu, harga_lpg3kg, kode, pilihan, total, bayar, kembali;
    harga_aqua = 18000;
    harga_biogua = 11000;
    harga_isiulang = 5000;
    harga_esbatu = 1000;
    harga_lpg3kg = 21000;
    //jmlh_esbatu = 0;

    awal:
        cout << "+===========================================================+\n";
        cout << "|                        TOKO SHOFI                         |\n";
        cout << "+===========================================================+\n";
        cout << "|  Kode  |          Produk          |         Harga         |\n";
        cout << "+========+==========================+=======================+\n";
        cout << "|   1    | Air Galon Aqua           |    Rp. 18.000.00      |\n";
        cout << "|   2    | Air Galon Biogua         |    Rp. 11.000.00      |\n";
        cout << "|   3    | Air Isi Ulang Galon      |    Rp. 5.000.00       |\n";
        cout << "|   4    | Es Batu                  |    Rp. 1.000.00       |\n";
        cout << "|   5    | LPG 3 kg                 |    Rp. 21.000.00      |\n";
        cout << "+===========================================================+\n";
        cout << endl;
        cout << "Masukkan kode produk yang akan dibeli\t: ";
        cin  >> kode;
        cout << endl;

        if (kode==1)
        {
            aqua:
                cout << "+===========================================================+\n";
                cout << "|  Kode  |          Produk          |         Harga         |\n";
                cout << "+========+==========================+=======================+\n";
                cout << "|   1    | Air Aqua Galon           |    Rp. 18.000.00      |\n";
                cout << "+===========================================================+\n";
                cout << endl;
                cout << "Masukkan jmlh Air Aqua Galon yang akan dibeli\t: ";
                cin  >> jmlh_aqua;
                cout << endl;
                if (jmlh_aqua<0)
                {
                    cout << "Masukkan jmlh lebih besar dari 0 \n";
                    goto aqua;
                } else {
                    aqua = harga_aqua * jmlh_aqua;
                    cout << "Ingin belanja lagi ?\n";
                    cout << "[1] Ya \n[2] Tidak \n";
                    cout << "Masukkan pilihan : ";
                    cin  >> pilihan;
                    system("CLS");
                    if (pilihan == 1)
                    {
                        goto awal;

                    } else {
                        goto hitung;
                    }

                }
        } else if(kode==2){
            biogua:
                cout << "+===========================================================+\n";
                cout << "|  Kode  |          Produk          |         Harga         |\n";
                cout << "+========+==========================+=======================+\n";
                cout << "|   2    | Air Biogua Galon         |    Rp. 11.000.00      |\n";
                cout << "+===========================================================+\n";
                cout << endl;
                cout << "Masukkan jmlh Air Biogua Galon yang akan dibeli\t: ";
                cin  >> jmlh_biogua;
                cout << endl;
                if (jmlh_biogua<0)
                {
                    cout << "Masukkan jmlh lebih besar dari 0 \n";
                    goto biogua;
                } else {
                    biogua = harga_biogua * jmlh_biogua;
                    cout << "Ingin belanja lagi ?\n";
                    cout << "[1] Ya \n[2] Tidak \n";
                    cout << "Masukkan pilihan : ";
                    cin  >> pilihan;
                    system("CLS");
                    if (pilihan == 1)
                    {
                        goto awal;

                    } else {
                        goto hitung;
                    }
                }
        }else if(kode==3){
            isiulang:
                cout << "+===========================================================+\n";
                cout << "|  Kode  |          Produk          |         Harga         |\n";
                cout << "+========+==========================+=======================+\n";
                cout << "|   3    | Air Isi Ulang Galon      |    Rp. 5.000.00       |\n";
                cout << "+===========================================================+\n";
                cout << endl;
                cout << "Masukkan jmlh Air Isi Ulang Galon yang akan dibeli\t: ";
                cin  >> jmlh_isiulang;
                cout << endl;
                if (jmlh_isiulang<0)
                {
                    cout << "Masukkan jmlh lebih besar dari 0 \n";
                    goto isiulang;
                } else {
                    isiulang = harga_isiulang * jmlh_isiulang;
                    cout << "Ingin belanja lagi ?\n";
                    cout << "[1] Ya \n[2] Tidak \n";
                    cout << "Masukkan pilihan : ";
                    cin  >> pilihan;
                    system("CLS");
                    if (pilihan == 1)
                    {
                        goto awal;

                    } else {
                        goto hitung;
                    }
                }
        }else if(kode==4){
            esbatu:
                cout << "+===========================================================+\n";
                cout << "|  Kode  |          Produk          |         Harga         |\n";
                cout << "+========+==========================+=======================+\n";
                cout << "|   4    | Es Batu                  |    Rp. 1.000.00       |\n";
                cout << "+===========================================================+\n";
                cout << endl;
                cout << "Masukkan jmlh Es Batu yang akan dibeli\t: ";
                cin  >> jmlh_esbatu;

                if (jmlh_esbatu < 0)
                {
                    cout << "Masukkan jmlh lebih besar dari 0 \n";
                    goto esbatu;
                } else {
                    esbatu = harga_esbatu * jmlh_esbatu;
                    cout << "Ingin belanja lagi ?\n";
                    cout << "[1] Ya \n[2] Tidak \n";
                    cout << "Masukkan pilihan : ";
                    cin  >> pilihan;
                    system("CLS");
                    if (pilihan == 1)
                    {
                        goto awal;

                    } else {
                        goto hitung;
                    }
                }
        }else if(kode==5){
            lpg3kg:
                cout << "+===========================================================+\n";
                cout << "|  Kode  |          Produk          |         Harga         |\n";
                cout << "+========+==========================+=======================+\n";
                cout << "|   5    | LPG 3 Kg                 |    Rp. 21.000.00      |\n";
                cout << "+===========================================================+\n";
                cout << endl;
                cout << "Masukkan jmlh LPG 3 kg yang akan dibeli\t: ";
                cin  >> jmlh_lpg3kg;
                cout << endl;
                if (jmlh_lpg3kg<0)
                {
                    cout << "Masukkan jmlh lebih besar dari 0 \n";
                    goto lpg3kg;
                } else {
                    lpg3kg = harga_lpg3kg * jmlh_lpg3kg;
                    cout << "Ingin belanja lagi ?\n";
                    cout << "[1] Ya \n[2] Tidak \n";
                    cout << "Masukkan pilihan : ";
                    cin  >> pilihan;
                    system("CLS");
                    if (pilihan == 1)
                    {
                        goto awal;

                    } else {
                        goto hitung;
                    }
                }
        }else {
            cout << "Kode yang anda masukkan salah, silahkan coba lagi !\n";
            goto awal;
        }
    hitung :
        cout <<     "Produk yang dibeli     :\n";
        if (jmlh_aqua > 0) {
            cout << "Air Aqua Galon         : " << jmlh_aqua <<endl;
        }else{}
        if (jmlh_biogua > 0) {
            cout << "Air Biogua Galon       : " << jmlh_biogua <<endl;
        }else{}
        if (jmlh_isiulang > 0) {
            cout << "Air Isi Ulang Galon    : " << jmlh_isiulang <<endl;
        }else{}
        if (jmlh_esbatu > 0) {
            cout << "Es Batu            : " << jmlh_esbatu <<endl;
        }else{}
        if (jmlh_lpg3kg > 0) {
            cout << "LPG 3Kg                : " << jmlh_lpg3kg <<endl;
        }else{}
}