data_drugs.txt

OBT001 Panadol 10000 13
OBT002 Sanmol 15000 18
OBT003 Bodrex 11000 25
OBT004 Paramex 25000 50

OOP2-TK2.cpp

#include <fstream>
#include <iostream>
#include <string>

using namespace std;
bool lanjutkan = true;

class Drug {
private:
  string drugID;
  string drugName;
  int price;

public:
  int stock;

  Drug(string drugID, string drugName, int price, int stock) {
    this->drugID = drugID;
    this->drugName = drugName;
    this->price = price;
    this->stock = stock;
  }

  string getDrugID() { return drugID; }

  string getDrugName() { return drugName; }

  int getPrice() { return price; }

  int getStock() { return stock; }
};

class Pharmacy {
private:
  int purchaseAmount = 0;
  int totalDrugs = 0;
  Drug *listDataDrugs[100];

  // friend function
  friend void penjualan_obat(Pharmacy &obj);
  friend void penjualan_resep(Pharmacy &obj);
  friend void persediaan_obat(Pharmacy &obj);
  friend void cetak_kwitansi(Pharmacy &obj);

public:
  void seedDataDrugs() {
    ifstream drugs_list_file("data_drugs.txt");

    if (drugs_list_file.is_open()) {
      string drugID, drugName;
      int price, stock;

      while (drugs_list_file >> drugID >> drugName >> price >> stock) {
        listDataDrugs[totalDrugs] = new Drug(drugID, drugName, price, stock);
        totalDrugs++;
      }

      drugs_list_file.close();
    } else {
      cout << "File tidak ditemukan" << endl;
    }
  }
};

void persediaan_obat(Pharmacy &obj) {
  cout << "\nPersediaan Obat\n";
  cout << "Kode Barang\t\tNama Barang\t\tHarga Barang\tStok\n";

  for (int i = 0; i < obj.totalDrugs; i++) {
    Drug *d = obj.listDataDrugs[i];
    cout << d->getDrugID() << "\t\t\t" << d->getDrugName() << "\t\t\t"
         << d->getPrice() << "\t\t\t" << d->getStock() << endl;
  }
}

void penjualan_obat(Pharmacy &obj) {
  string kodeObat;

  cout << "\nKode Obat: ";
  cin >> kodeObat;

  for (int i = 0; i < obj.totalDrugs; i++) {
    Drug *d = obj.listDataDrugs[i];
    
    if (kodeObat == d->getDrugID()) {
      cout << "\nDetail Obat\n\n";
      cout << "Kode Obat : " << d->getDrugID() << endl;
      cout << "Nama Obat : " << d->getDrugName() << endl;
      cout << "Harga Obat: " << d->getPrice() << endl;
      cout << "Stok Obat : " << d->getStock() << endl;
    }
  }

  cout << "\nJumlah yg ingin dibeli : ";
  cin >> obj.purchaseAmount;

  for (int x = 0; x < obj.totalDrugs; x++) {
    Drug *d = obj.listDataDrugs[x];
    
    if (kodeObat == d->getDrugID()) {
      cout << d->getDrugID() << endl;
      cout << "\nStok Obat Saat Ini : "
           << d->getStock() - obj.purchaseAmount << endl;
      d->stock = d->getStock() - obj.purchaseAmount;
    }
  }
}

void cetak_kwitansi(Pharmacy &obj) {
  string kodeObat;

  cout << "\nKode Obat: ";
  cin >> kodeObat;

  for (int i = 0; i < obj.totalDrugs; i++) {
    Drug *d = obj.listDataDrugs[i];
    
    if (kodeObat == d->getDrugID()) {
      cout << "\nDetail Transaksi\n\n";
      cout << "Kode Obat   : " << d->getDrugID() << endl;
      cout << "Nama Obat   : " << d->getDrugName() << endl;
      cout << "Harga Obat  : " << d->getPrice() << endl;
      cout << "Total Bayar : " << d->getPrice() * obj.purchaseAmount << endl;
    }
  }
}

void penjualan_resep(Pharmacy &obj) {
  string namaPembeli;
  string alamatPembeli;
  string kodeObat;
  int jumlahObat;

  cout << "\nNama Pembeli: ";
  cin >> namaPembeli;
  cout << "\nAlamat Pembeli: ";
  cin >> alamatPembeli;
  cout << "\nKode Obat Berdasarkan resep: ";
  cin >> kodeObat;

  for (int i = 0; i < obj.totalDrugs; i++) {
    Drug *d = obj.listDataDrugs[i];
    
    if (kodeObat == d->getDrugID()) {
      cout << "\nDetail Obat\n\n";
      cout << "Kode Obat : " << d->getDrugID() << endl;
      cout << "Nama Obat : " << d->getDrugName() << endl;
      cout << "Harga Obat: " << d->getPrice() << endl;
      cout << "Stok Obat : " << d->getStock() << endl;
      cout << "Nama Pembeli : " << namaPembeli << endl;
      cout << "Alamat Pembeli : " << alamatPembeli << endl;
    }
  }

  cout << "\nJumlah yg ingin dibeli : ";
  cin >> obj.purchaseAmount;

  for (int i = 0; i < obj.totalDrugs; i++) {
    Drug *d = obj.listDataDrugs[i];
    
    if (kodeObat == d->getDrugID()) {
      if (d->getStock() < jumlahObat) {
        cout << "Maaf stok obat " << d->getDrugName() << " tidak mencukupi"
             << endl;
      } else {
        d->stock = d->getStock() - obj.purchaseAmount;
        cout << "\nStok Obat Saat Ini : " << d->getStock();
      }
    }
  }
}

void exit(bool *isExit) {
  *isExit = false;
  cout << "Program Selesai" << endl;
}

void menu(int selectedMenu, Pharmacy &obj) {
  switch (selectedMenu) {
  case 1:
    persediaan_obat(obj);
    break;
  case 2:
    penjualan_obat(obj);
    break;
  case 3:
    penjualan_resep(obj);
    break;
  case 4:
    cetak_kwitansi(obj);
    break;
  default:
    exit(&lanjutkan);
    break;
  }
}

int main() {
  int selectedMenu;
  Pharmacy obj;

  obj.seedDataDrugs();

  while (lanjutkan) {
    cout << "\nMenu\n";
    cout << "1. Persediaan Obat\n";
    cout << "2. Penjualan Obat\n";
    cout << "3. Penjualan Berdasarkan Resep Dokter \n";
    cout << "4. Cetak Kwitansi Penjualan\n";
    cout << "5. Keluar\n";
    cout << "\nPilih Menu: ";
    cin >> selectedMenu;

    menu(selectedMenu, obj);
}