Program_transaksi_pembayaran

/*
    Program transaksi pembayaran.
    Dibuat oleh : MashudiCastol
    Dibuat tanggal : 17 Desember 2014
    untuk referensi pembelajaran dasar bahasa pemerograman C/C++
*/
#include <iostream>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <fstream>
using namespace std;

void header();//header input
void headerstruck();//header struck pembelian
void inputtransaksi();//proses input transaksi pembelian
void proses();//Proses data dari input transaksi pembelian
void struck();//struck pembelian
void logtransaksi();//file log transaksi

//Kamus Data transaksi
int No_transaksi, jumlah_beli, Total_Bayar, Uang_kembali, uang_bayar, kembali;
double  harga, diskon, totaldiskon, jumlah_harga;
char kode_Jilbab, Jenis_Jilbab[100];
time_t tanggal;//Menampilkan waktu transaksi

int main() {
    system("clear");
        header();
        inputtransaksi();
        proses();
        headerstruck();
        struck();
        logtransaksi();
    //system("pause");
    return 0;
}

void header(){
    cout << "         Toko Jilbab Hidayah Collection          \n"
         << "===============================================\n\n";
}

void headerstruck(){
    system("clear");
    cout << "                 Struk Pembayaran        \n"
         << "          Toko Jilbab Hidayah Collection \n"
         << "         +==++==++==++==++==++==++==++==+\n";
}

void inputtransaksi(){
        cout << "No. Transaksi : ";
        cin >> No_transaksi;
        cout << "===============================================\n\n";
        cout << "Pilih Kode Jilbab [S/M/L] : ";
        cin >> kode_Jilbab;
        cout << "Jumlah Beli : ";
        cin >> jumlah_beli;
        cout << "\n\n";
            proses();//menampilkan TOTAL HARGA
        cout << "\n\n";
        cout << "Uang Bayar : Rp.";
        cin >> uang_bayar;
}

void proses(){
    /*
        Proses data dari input transaksi pembelian
        Penentuan jenis jilbab, harga, dan diskon
        Serta rumus hitung.
    */
    //Jenis Jilbab, harga, diskon
    if(toupper(kode_Jilbab) == 'S'){
        strcpy(Jenis_Jilbab,"Pasmina");
        harga = 50000;
        diskon = 0.15;
    }
    else if(toupper(kode_Jilbab) == 'M'){
        strcpy(Jenis_Jilbab,"Saqina");
        harga = 75000;
        diskon = 15/100;
    }
    else if(toupper(kode_Jilbab) == 'L'){
        strcpy(Jenis_Jilbab,"Rabbani");
        harga = 90000;
        diskon = 20/100;
    }
    //menghitung harga
        if(jumlah_beli >= 3){
            jumlah_harga = harga * jumlah_beli;
            totaldiskon = diskon * jumlah_harga;
            Total_Bayar = jumlah_harga - totaldiskon;
        }
        else{
            jumlah_harga = harga * jumlah_beli;
            Total_Bayar = jumlah_harga - totaldiskon;
        }
    /*
        Peintah dibawah ini digunakan untuk menampilkan TOTAL HARGA
        sebelum input uang pembayaran pembeli
    */
    cout << "===============================================\n"
         << "            TOTAL HARGA : Rp." << Total_Bayar << "\n"
         << "===============================================\n\n";
    //menghitung uang kembalian
    Uang_kembali = uang_bayar - Total_Bayar;
}

void struck(){
    time(&tanggal);//Menampilkan waktu transaksi
    cout << "Nota : "
         << No_transaksi << "\n"
         << "Tanggal Transaksi : "
         << ctime(&tanggal)//Menampilkan waktu transaksi
         << "===============================================\n\n"
         << "Jenis Jilbab : "
         << Jenis_Jilbab << "\n"
         << "Harga/pcs : Rp."
         << harga << "\n"
         << "Jumlah : "
         << jumlah_beli << " pcs" << "\n"
         << "Diskon : "
         << totaldiskon << "\n\n"
         << "===============================================\n"
         << "            TOTAL HARGA : Rp." << Total_Bayar << "\n"
         << "===============================================\n\n"
         << "Anda Membayar Sebesar : Rp."
         << uang_bayar << "\n"
         << "Uang Kembali : Rp."
         << Uang_kembali << "\n\n"
         << "===============================================\n\n";
}

void logtransaksi(){
    ofstream logfile;
        logfile.open("logtransaksi.log", fstream::app);
        logfile  << "                 Struk Pembayaran        \n"
                 << "          Toko Jilbab Hidayah Collection \n"
                 << "         +==++==++==++==++==++==++==++==+\n"
                 << "Nota : "
                 << No_transaksi << "\n"
                 << "Tanggal Transaksi : "
                 << ctime(&tanggal)//Menampilkan waktu transaksi
                 << "===============================================\n\n"
                 << "Jenis Jilbab : "
                 << Jenis_Jilbab << "\n"
                 << "Harga/pcs : Rp."
                 << harga << "\n"
                 << "Jumlah : "
                 << jumlah_beli << " pcs" << "\n"
                 << "Diskon : "
                 << totaldiskon << "\n\n"
                 << "===============================================\n"
                 << "            TOTAL HARGA : Rp." << Total_Bayar << "\n"
                 << "===============================================\n\n"
                 << "Anda Membayar Sebesar : Rp."
                 << uang_bayar << "\n"
                 << "Uang Kembali : Rp."
                 << Uang_kembali << "\n\n"
                 << "===============================================\n\n";
    logfile.close();
}