UTS_ALGORITMA

#include <iostream>
#include <string>
#include <algorithm>
#include <iomanip>

using namespace std;
//Nadzia Dibda
//3420230011
void judul() {
    cout << "----------------------------------------------------------------"<<endl;
    cout << " PROGRAM TIKET KERETA\n";
    cout << "----------------------------------------------------------------"<<endl;
    cout << "|  Kelas      | AG(Argo Bromo) | AL(Argo Lawu) | PH(Argo Wilis) |"<<endl;
    cout << "----------------------------------------------------------------"<<endl;
    cout << "| 1-Executive | 500.000        | 475.000       | 450.000        |"<<endl;
    cout << "| 2-Bisnis    | 480.000        | 455.000       | 430.000        |"<<endl;
    cout << "| 3-Ekonomi   | 460.000        | 435.000       | 410.000        |"<<endl;
    cout << "----------------------------------------------------------------"<<endl; 
    cout << "Ketentuan Discount:"<<endl;
    cout << "Apabila pembelian tiket diatas 10 maka diskon 10% dari Total"<<endl;
    cout << "Apabila pembelian tiket diatas 5 maka diskon 5% dari Total"<<endl;
    cout << "----------------------------------------------------------------"<<endl; 
    cout << "Ketentuan Salah Input:"<<endl;
    cout << "Jika input Kode Kereta ATAU Kode Kelas salah maka muncul pesan."<<endl;
    cout << "----------------------------------------------------------------"<<endl;
    cout << "Ketentuan Kondisi:"<<endl;
    cout << "Program harus menggunakan switch case dan if else."<<endl;
    cout << "Harus ada fungsi JUDUL."<<endl;
    cout << "Harus ada fungsi CEK_HARGA."<<endl;
    cout << "Harus ada fungsi CEK_NAMA_KERETA."<<endl;
    cout << "Harus ada fungsi CEK_KELAS."<<endl;
    cout << "Harus ada fungsi CEK_DISKON."<<endl;
    cout << "Harus bisa handle input huruf besar dan kecil."<<endl;
    cout << "----------------------------------------------------------------"<<endl;
}

void cek_harga(int &harga, string kodeKereta, int kelas) {
    if (kodeKereta == "AG") {
        if (kelas == 1) harga = 500000;
        else if (kelas == 2) harga = 480000;
        else if (kelas == 3) harga = 460000;
    } else if (kodeKereta == "AL") {
        if (kelas == 1) harga = 475000;
        else if (kelas == 2) harga = 455000;
        else if (kelas == 3) harga = 435000;
    } else if (kodeKereta == "PH") {
        if (kelas == 1) harga = 450000;
        else if (kelas == 2) harga = 430000;
        else if (kelas == 3) harga = 410000;
    }
}

void garis() {
     cout << "----------------------------------------------------------------"<<endl;
}


string cek_nama_kereta(string kodeKereta) {
    if (kodeKereta == "AG") return "Argo Bromo";
    else if (kodeKereta == "AL") return "Argo Lawu";
    else if (kodeKereta == "PH") return "Argo Wilis";
    return "Tidak diketahui";
}


double cek_diskon(int jumlah, double subtotal) {
    if (jumlah > 10) return subtotal * 0.10;
    else if (jumlah > 5) return subtotal * 0.05;
    return 0;
}

string cek_kelas(int kelas) {
    switch (kelas) {
        case 1: return "Executive";
        case 2: return "Bisnis";
        case 3: return "Ekonomi";
        default: return "Kode Kelas Salah";
    }
}

int main() {
    judul();
    
    string namaPemesan, kodeKereta;
    int kodeKelas, harga, jumlahBeli;
    double subtotal, diskon, total;
    
    cout << "Nama Pemesan                   : <input>"<<endl;
    cin >> namaPemesan;
    cout << "Masukan Kode Kereta [AG/AL/PH] : <input>"<<endl;
    cin >> kodeKereta;
    cout << "Masukan Kode Kelas [1/2/3]     : <input>"<<endl;
    cin >> kodeKelas;
    
    if (kodeKereta != "AG" && kodeKereta != "AL" && kodeKereta != "PH") {
        cout << "Kode Kereta salah!"<<endl;
        return 1;
    }
    
    if (kodeKelas < 1 || kodeKelas > 3) {
        cout << "Kode Kelas salah!"<<endl;
        return 1;
    }
    
    cek_harga(harga, kodeKereta, kodeKelas);
    string namaKereta = cek_nama_kereta(kodeKereta);
    string namaKelas = cek_kelas(kodeKelas);
    
    cout <<endl;
    cin >> jumlahBeli;
    
    subtotal = harga * jumlahBeli;
    diskon = cek_diskon(jumlahBeli, subtotal);
    total = subtotal - diskon;

    // Output data pemesanan
    cout << "----------------------------------------------------------------"<<endl;
    cout << "DATA PEMESANAN KERETA" <<endl;
    cout << "----------------------------------------------------------------"<<endl;
    cout << "Nama Pemesan          : " << namaPemesan <<" <output>"  <<  endl;
    cout << "Kode Kereta           : " << kodeKereta <<" <output>" << endl;
    cout << "Kode Kelas            : " << kodeKelas << " <output>" << endl;
    cout << "Nama Kereta           : " << namaKereta <<" <output>" << endl;
    cout << "Nama Kelas            : " << namaKelas <<" <output>" << endl;
    cout << "Harga Tiket           : " << fixed  << setprecision(2) << harga <<" <output>" << endl;
    cout << "Jumlah Beli           : " /*<< jumlahBeli*/ <<"<input>" << endl;
    cout << "Subtotal              : " << fixed << setprecision(2) << subtotal <<" <output>" << endl;
    cout << "Diskon                : " << fixed << setprecision(2) << diskon <<" <output>" << endl;
    cout << "Total                 : " << fixed << setprecision(2) << total <<" <output>" << endl;
    cout << "----------------------------------------------------------------"<<endl;

   cout << "Nama     : Nadzia Dibda";
   cout << "\nEmail    : [email protected]";
    return 0;
}