cafemini.cpp

cafemini.cpp

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

using namespace std;

fstream f, f_out;

int n, b, c, somon; 
int bien = 0;

struct menu
{
	int soThuTu;
	string ten;
	long gia;
};
menu mang[1000];

void thietLapMenu();

void chonmon();

void inhoadon();

int main()
{
	bool done=false;
	while (!done)
	{
	cout << "Moi ban chon cac tinh nang: " << endl;
	cout << " 1.Thiet lap menu cho quan " << endl;
	cout << " 2.Chon thuc uong " << endl;
	cout << " 3.In hoa don " << endl;
	cout << " 4.Thoat" << endl;
	cout << "Ban chon: ";
	cin >> n;
	 {
	switch (n)
	  {
	case 1:
		{
		thietLapMenu();
		break;
		}

	case 2: 
		{
		chonmon();
		break;
		}
	case 3: 
		{
		inhoadon();
		break;
		}
	case 4:
		{
			done =true;
			break;
		}
	  }
	
	 }
	}
	
	return 0;
}

void thietLapMenu()
{
	int somon;
	cout << "Nhap menu: " << endl;
	f.open("menu.txt", ios::out);
		cout << "So mon can nhap la: ";
		cin >> somon;
		for (int i = 1; i <= somon; i++)
		{
			cout << "Nhap ten mon: ";
			fflush(stdin);
			getline(cin, mang[i].ten);
			cout << "Nhap gia: ";
			cin >> mang[i].gia;
			mang[i].soThuTu = i;
			f << mang[i].soThuTu << " " << mang[i].ten << "  " << mang[i].gia << endl;
		f.close();
		}
}

void chonmon()
{
	//doc so thu tu soThuTu_donhangach hang
	int khachhang;
	f.open("khachhang.txt", ios::in);
	if (!f) {
		khachhang = 0;
	}
	else {
		while (!f.eof())
			f >> khachhang;
	}
	f.close();
	f.open("khachhang.txt", ios::out | ios::trunc);
	khachhang += 1;
	f << khachhang << endl;
	cout << " Khach hang thu " << khachhang << endl;
	f.close();

	int soThuTumon;
	int somoncangoi;
	string xuatten = "Ten mon";
	int xuatsoThuTu = 0;
	long xuatgia = 0;
	cout << "    Menu gom co: \n";
	f.open("menu.txt", ios::in);
	if (!f)
		cout << "Chua co menu !";
	else
	{
		int i = 1;
		while (!f.eof())
		{
			cout << xuatsoThuTu << "  " << xuatten << "  " << xuatgia << endl;
			f >> xuatsoThuTu >> xuatten >> xuatgia;
			mang[i].soThuTu = xuatsoThuTu;
			mang[i].ten = xuatten;
			mang[i].gia = xuatgia;
			i++;
		}
		f.close();

		char buffer[33];
		itoa(khachhang, buffer, 10);
		string soThuTu_donhang(buffer);

		if (khachhang<10)
			f.open("000" + soThuTu_donhang + ".txt", ios::out);
		else if (khachhang <100)
			f.open("00" + soThuTu_donhang + ".txt", ios::out);
		else if (khachhang <1000)
			f.open("0" + soThuTu_donhang + ".txt", ios::out);
		else
			f.open(soThuTu_donhang + ".txt", ios::out);
		cout << "So mon ban muon goi la: ";
		cin >> somoncangoi;
		for (int i = 0; i<somoncangoi; i++)
		{
			cout << "Ban chon mon co soThuTu: ";
			cin >> soThuTumon;
			f << i + 1 << "  " << mang[soThuTumon].ten << "  " << mang[soThuTumon].gia << endl;
		}
		f.close();
	}
}

void inhoadon()
{
	int maHoaDon;
	int soThuTu = 0;
	string ten = "Ten";
	long gia = 0;
	long tong = 0;
	cout << "Nhap ma don hang: \n Vi du:0001,0002,0003.... " << endl;
	cin >> maHoaDon;
	stringstream sstr;
	sstr << maHoaDon;
	string soThuTu_donhang = sstr.str();
	if (maHoaDon<10) {
		f.open("000" + soThuTu_donhang + ".txt", ios::in);
		f_out.open("Hoadon_000" + soThuTu_donhang + ".txt", ios::out);
	}
	else if (maHoaDon <100) {
		f.open("00" + soThuTu_donhang + ".txt", ios::in);
		f_out.open("Hoadon_00" + soThuTu_donhang + ".txt", ios::out);
	}
	else if (maHoaDon <1000) {
		f.open("0" + soThuTu_donhang + ".txt", ios::in);
		f_out.open("Hoadon_0" + soThuTu_donhang + ".txt", ios::out);
	}
	else {
		f.open(soThuTu_donhang + ".txt", ios::in);
		f_out.open("Hoadon_" + soThuTu_donhang + ".txt", ios::out);
	}
	while (!f.eof())
	{
		f_out << soThuTu << "\t" << ten << "\t" << gia << endl;
		tong = tong + gia;
		f >> soThuTu >> ten >> gia;
	}
	f.close();
	f_out << "Tong:\t \t" << tong;
	f_out.close();
	cout << "Hoa don cua ban da duoc in \n" << endl;
}