Assignment

#include <iostream>
#include <string>
#include <iomanip>
#include <vector>
using namespace std;
struct Acc {
	vector<string> user;
	vector<string> pass;
};
struct Product {
	vector<string> id;
	vector<string> ten;
	vector<string> nsx;
	vector<string> hsd;
	vector<int> soluong;
	vector<int> gia;
};
struct Buy_Product {
	vector<string> kh;
	vector<string> id;
	vector<string> ten;
	vector<string> hsd;
	vector<int> soluong;
	vector<int> tongtien;
};
void productinfo(Product &pro);
void accinfo(Acc &adm, Acc &man, Acc &cus);
bool login(string &user,string &pass, Acc &acc, int &x);
void main_admin(Acc &ad, Acc &ma, Acc &cu,int &z,Product &pro, Buy_Product &giohang);
void main_customer(Acc &ad,Acc &ma, Acc &cu,int &z,Product &pro,Buy_Product &giohang);
void main_manager(Acc &ad, Acc &ma, Acc &cu, int &z, Product &pro, Buy_Product &giohang);
bool del(Acc &acc);
void list(Acc &acc);
bool add(Acc &acc);
void reset(Acc &acc,int &z);
void start(Acc &adm, Acc &man, Acc &cus, Product &pro, Buy_Product &giohang);
bool search_acc(Acc &acc, string &s);
bool search_pro(Product &pro, string &s, int &m);
int main(){
	Acc adm, man, cus;
	Product pro;
	Buy_Product giohang;
	accinfo(adm, man, cus);
	productinfo(pro);
	start(adm,man,cus,pro,giohang);
	system("pause");
}
void start(Acc &adm,Acc &man, Acc &cus,Product &pro,Buy_Product &giohang) {
	string u, p;
	int n, z;
	int a;
	cout << "1.Dang nhap        2.Tim kiemn         3.Thoat\n";
	do { cin >> a; } while (a > 3 || a < 1);
	if (a == 2) {
		cout << "1.Tim kiem tai khoan      2.Tim kiem san pham\n";
		int b;
		do {
			cin >> b;
		} while (b > 2 || b < 1);
		if (b == 1) {
			string s;
			cout << "Ban muon tim: \n";
			cout << "1.Admin      2.Manager      3.Customer\n";
			int c;
			do { cin >> c; } while (c > 3 || c < 1);
			if (c == 1) {
				do {
					cout << "Nhap username can tim: ";
					cin >> s;
				} while (search_acc(adm, s) == 0);
				cout << setw(25)<< "Quan tri vien"<<endl;
				int d;
				cout << "Nhan 1 de tro ve!\n";
				do { cin >> d; } while (d != 1);
				if (d == 1)
					start(adm, man, cus, pro, giohang);
			}
			if (c == 2) {
				do {
					cout << "Nhap username can tim: ";
					cin >> s;
				} while (search_acc(man, s) == 0);
				cout << setw(25) << "Nhan vien" << endl;
				int d;
				cout << "Nhan 1 de tro ve!\n";
				do { cin >> d; } while (d != 1);
				if (d == 1)
					start(adm, man, cus, pro, giohang);
			}
			if (c == 3) {
				do {
					cout << "Nhap username can tim: ";
					cin >> s;
				} while (search_acc(cus, s) == 0);
				cout << setw(25) << "Khach hang" << endl;
				int d;
				cout << "Nhan 1 de tro ve!\n";
				do { cin >> d; } while (d != 1);
				if (d == 1)
					start(adm, man, cus, pro,giohang);
			}
		}
		if (b == 2) {
			string p;
			int m;
			do {
				cout << "Nhap id san pham can tim: ";
				cin >> p;
			} while (search_pro(pro, p, m) == 0);
			int c;
			cout << "Nhan 1 de tro ve!\n";
			do { cin >> c; } while (c != 1);
			if (c == 1)
				start(adm, man, cus, pro, giohang);
		}
	}
	if (a == 1) {
		cout << "Nhap tai khoan ban muon dang nhap!\n";
		cout << "1.admin      2.manager      3.customer\n";
		do { cin >> n; } while (n > 3 || n < 1);
		if (n == 1) {
			do {
				cout << "nhap user: ";
				cin >> u;
				cout << "nhap pass: ";
				cin >> p;
				login(u, p, adm, z);
			} while (login(u, p, adm, z) == false);
			cout << "Ban dang nhap thanh cong!\n";
			main_admin(adm, man, cus, z, pro, giohang);
		}
		if (n == 2) {
			do {
				cout << "nhap user: ";
				cin >> u;
				cout << "nhap pass: ";
				cin >> p;
				login(u, p, man, z);
			} while (login(u, p, man, z) == false);
			cout << "Ban dang nhap thanh cong!\n";
			main_manager(adm, man, cus, z, pro, giohang);
		}
		if (n == 3) {
			do {
				cout << "nhap user: ";
				cin >> u;
				cout << "nhap pass: ";
				cin >> p;
				login(u, p, cus, z);
			} while (login(u, p, cus, z) == false);
			cout << "Ban dang nhap thanh cong!\n";
			main_customer(adm, man, cus, z, pro, giohang);
		}
	}
	if (a == 3) {}
}
bool login(string &user, string &pass, Acc &acc,int &z) {
	for (int i = 0; i <acc.user.size(); i++) {
		if (user == acc.user[i] && pass == acc.pass[i])
		{
			z = i;
			return true;
			break;
		}
		else if (i == acc.user.size() - 1)
			return false;
	}
}
void accinfo(Acc &adm, Acc &man, Acc &cus) {
	adm.user.push_back("admin");
	adm.pass.push_back("12345");
	man.user.push_back("manager_1");
	man.pass.push_back("12345");
	man.user.push_back("manager_2");
	man.pass.push_back("12345");
	cus.user.push_back("customer_1");
	cus.pass.push_back("12345");
	cus.user.push_back("customer_2");
	cus.pass.push_back("12345");
}
void productinfo(Product &pro) {
	pro.id.push_back("1432");
	pro.ten.push_back("Bia Tiger");
	pro.nsx.push_back("23/02/2016");
	pro.hsd.push_back("23/02/2017");
	pro.soluong.push_back(30);
	pro.gia.push_back(270000);
	pro.id.push_back("1433");
	pro.ten.push_back("Bia 333");
	pro.nsx.push_back("11/04/2016");
	pro.hsd.push_back("11/04/2017");
	pro.soluong.push_back(24);
	pro.gia.push_back(240000);
}
void main_admin(Acc &ad, Acc &ma, Acc &cu,int &z, Product &pro, Buy_Product &giohang) {
	cout << setw(50) << "-------------------------------------------------"<<endl;
	cout << setw(45) << left << "-1. Danh sanh tai khoan" << setw(5) << right << "-"<<endl;
	cout << setw(45) << left << "-2. Xoa tai khoan" << setw(5) << right << "-"<<endl;
	cout << setw(45) << left << "-3. Them tai khoan" << setw(5) << right << "-"<<endl;
	cout << setw(45) << left << "-4. Cai lai mat khau" << setw(5) << right << "-"<<endl;
	cout << setw(45) << left << "-5. Dang xuat" << setw(5) << right << "-"<<endl;
	cout << setw(50) << "-------------------------------------------------"<<endl;
	int n;
	do {
		cin >> n;
	} while (n > 5 || n < 1);
	if (n == 1) {
		cout << "Danh sach nhan vien: \n";
		list(ma);
		cout << "Danh sach khach hang: \n";
		list(cu);
		int m;
		cout << "Nhan 1 de tro lai!\n";
		do { cin >> m; } while (m != 1);
		if (m == 1)
			main_admin(ad, ma, cu,z,pro,giohang);
	}
	if (n == 2) {
		int m;
		cout << "Nhap loai tai khoan ban muon xoa: \n";
		cout << "1.Manager        2.Customer\n";
		do { cin >> m; } while (m > 2 || m < 1);
		if (m == 1) {
			del(ma);
		}
		else if (m == 2)
		{
			del(cu);
		}
		int o;
		cout << "Nhan 1 de tro lai!\n";
		do { cin >> o; } while(o!=1);
		if (o == 1)
			main_admin(ad, ma, cu,z,pro,giohang);
	}
	if(n==3) {
		int m;
		cout << "Nhap loai tai khoan ban muon them: \n";
		cout << "1.Manager        2.Customer\n";
		do {
			cin >> m;
		}while(m>2||m<1);
		if (m == 1) {
			add(ma);
		}
		else if (m == 2) {
			add(cu);
		}
		cout << "Them tai khoan thanh cong!\n";
		int o;
		cout << "Nhan 1 de tro lai!\n";
		do {
			cin >> o;
		}while(o!=1);
		if (o == 1)
		main_admin(ad, ma, cu,z,pro,giohang);
	}
	if (n == 4) {
		reset(ad, z);
		int m;
		cout << "Nhan 1 de tro ve!\n";
		do {
			cin >> m;
		} while (m != 1);
		if (m == 1)
			main_admin(ad, ma, cu, z, pro,giohang);
	}
	if (n == 5) {
		cout << "Ban dang xuat thanh cong!\n";
		start(ad, ma, cu, pro,giohang);
	}
}
void main_manager(Acc &ad, Acc &ma, Acc &cu, int &z,Product &pro, Buy_Product &giohang){
	cout << setw(50) << "-------------------------------------------------" << endl;
	cout << setw(45) << left << "-1. Danh sanh khach hang" << setw(5) << right << "-" << endl;
	cout << setw(45) << left << "-2. Danh sach hang hoa" << setw(5) << right << "-" << endl;
	cout << setw(45) << left << "-3. Them hang hoa" << setw(5) << right << "-" << endl;
	cout << setw(45) << left << "-4. Xoa hang hoa" << setw(5) << right << "-" << endl;
	cout << setw(45) << left << "-5. Cai lai mat khau" << setw(5) << right << "-" << endl;
	cout << setw(45) << left << "-6. Quan li gio hang" << setw(5) << right << "-" << endl;
	cout << setw(45) << left << "-7. Dang xuat" << setw(5) << right << "-" << endl;
	cout << setw(50) << "-------------------------------------------------" << endl;
	int n;
	do { cin >> n; } while (n > 7 || n < 1);
	if (n == 1) {
		cout << "Danh sach khach hang: \n";
		list(cu);
		int m;
		cout << "Nhan 1 de tro lai!\n";
		do { cin >> m; } while(m!=1);
		if (m == 1)
			main_manager(ad, ma, cu, z, pro,giohang);
	}
	if (n == 2) {
		cout << "Danh sach hang hoa: \n";
		cout << setw(10) << left << "ID" <<
			setw(40) << left << "Ten SP" <<
			setw(20) << left << "NSX" <<
			setw(20) << left << "HSD" <<
			setw(10) << left << "SL" <<
			setw(20) << left << "Gia" << endl;
		for (int i = 0; i < pro.id.size(); i++) {
			cout << setw(10) << left << pro.id[i] <<
				setw(40) << left << pro.ten[i] <<
				setw(20) << left << pro.nsx[i] <<
				setw(20) << left << pro.hsd[i] <<
				setw(10) << left << pro.soluong[i] <<
				setw(20) << left << pro.gia[i] << endl;
		}
		int m;
		cout << "Nhan 1 de tro lai!\n";
		do { cin >> m; } while (m != 1);
		if (m == 1)
			main_manager(ad, ma, cu, z, pro,giohang);
	}
	if (n == 3) {
		string ID, name, NSX, HSD;
		bool x;
		do {
			cout << "Nhap id san pham ban muon them: ";
			cin >> ID;
			for (int i = 0; i < pro.id.size(); i++) {
				if (ID == pro.id[i]) {
					cout << "ID da ton tai!\n";
					x = false;
					break;
				}
				else if (i == pro.id.size() - 1)
					x = true;
			}
		} while (x == false);
		cout << "Nhap ten san pham: ";
		cin.ignore(1);
		getline(cin, name);
		cout << "Nhap ngay san xuat: ";
		cin.ignore(1);
		getline(cin, NSX);
		cout << "Nhap han su dung: ";
		cin.ignore(1);
		getline(cin, HSD);
		int SL;
		cout << "Nhap so luong san pham: ";
		cin >> SL;
		int GIA;
		cout << "Nhap gia san pham: ";
		cin >> GIA;
		pro.id.push_back(ID);
		pro.ten.push_back(name);
		pro.nsx.push_back(NSX);
		pro.hsd.push_back(HSD);
		pro.soluong.push_back(SL);
		pro.gia.push_back(GIA);
		cout << "Them san pham thanh cong!\n";
		int m;
		cout << "Nhan 1 de tro lai!\n";
		do { cin >> m; } while (m != 1);
		if (m == 1)
			main_manager(ad, ma, cu, z, pro,giohang);
	}
	if (n == 4) {
		string id;
		int y;
		bool x;
		do {
			cout << "Nhap id cua san pham ma ban muon xoa: ";
			cin >> id;
			for (int i = 0; i < pro.id.size(); i++) {
				if (id == pro.id[i]) {
					y = i;
					x = true;
					break;
				}
				else if (i == pro.id.size() - 1) {
					x = false;
					cout << "id khong ton tai!\n";
				}
			}
		} while (x == false);
		pro.id.erase(pro.id.begin() + y);
		pro.ten.erase(pro.ten.begin() + y);
		pro.nsx.erase(pro.nsx.begin() + y);
		pro.hsd.erase(pro.hsd.begin() + y);
		pro.soluong.erase(pro.soluong.begin() + y);
		pro.gia.erase(pro.gia.begin() + y);
		cout << "Ban xoa san pham thanh cong!\n";
		int m;
		cout << "Nhan 1 de tro lai!\n";
		do { cin >> m; } while (m != 1);
		if (m == 1)
			main_manager(ad, ma, cu, z, pro, giohang);
	}
	if (n == 5) {
		reset(ma, z);
		int m;
		cout << "Nhan 1 de tro lai!\n";
		do { cin >> m; } while (m != 1);
		if (m == 1)
			main_manager(ad, ma, cu, z, pro, giohang);
	}
	if (n == 6) {
		if (giohang.id.size() == 0)
			cout << "Chua co khach mua hang!\n";
		else
		{
				cout << setw(20) << left << "Khach hang" <<
					setw(10) << left << "ID" <<
					setw(40) << left << "Ten SP" <<
					setw(20) << left << "HSD" <<
					setw(10) << left << "SL" <<
					setw(20) << left << "Tong Tien" << endl;
				for (int i = 0; i < giohang.id.size(); i++) {
					cout << setw(20) << left << giohang.kh[i] <<
						setw(10) << left << giohang.id[i] <<
						setw(40) << left << giohang.ten[i] <<
						setw(20) << left << giohang.hsd[i] <<
						setw(10) << left << giohang.soluong[i] <<
						setw(20) << left << giohang.tongtien[i] << endl;
			}
		}
		int m;
		cout << "Nhan 1 de tro lai!\n";
		do { cin >> m; } while (m != 1);
		if (m == 1)
			main_manager(ad, ma, cu, z, pro, giohang);
	}
	if (n == 7) {
		cout << "Ban dang xuat thanh cong!\n";
		start(ad, ma, cu, pro,giohang);
	}
}
void main_customer(Acc &ad, Acc &ma, Acc &cu, int &z, Product &pro, Buy_Product &giohang) {
	cout << setw(50) << "-------------------------------------------------" << endl;
	cout << setw(45) << left << "-1. Xem gio hang" << setw(5) << right << "-" << endl;
	cout << setw(45) << left << "-2. Tim kiem san pham" << setw(5) << right << "-" << endl;
	cout << setw(45) << left << "-3. Danh sach san pham" << setw(5) << right << "-" << endl;
	cout << setw(45) << left << "-4. Thay doi mat khau" << setw(5) << right << "-" << endl;
	cout << setw(45) << left << "-5. Dang xuat" << setw(5) << right << "-" << endl;
	cout << setw(50) << "-------------------------------------------------" << endl;
	int n;
	do {
		cin >> n;
	} while (n > 5 || n < 1);
	if (n == 1) {
		if (giohang.id.size() == 0)
			cout << "Ban chua mua hang, moi ban them san pham vao gio hang!\n";
		else {
				cout << setw(10) << left << "ID" <<
					setw(40) << left << "Ten SP" <<
					setw(20) << left << "HSD" <<
					setw(10) << left << "SL" <<
					setw(20) << left << "Tong Tien" << endl;
				for (int i = 0; i < giohang.id.size(); i++) {
					if (giohang.kh[i] == cu.user[z]) {
						cout << setw(10) << left << giohang.id[i] <<
							setw(40) << left << giohang.ten[i] <<
							setw(20) << left << giohang.hsd[i] <<
							setw(10) << left << giohang.soluong[i] <<
							setw(20) << left << giohang.tongtien[i] << endl;
					}
					else if (i == giohang.id.size() - 1)
						cout << "Ban chua mua hang, moi ban them san pham vao gio hang!\n";
				}
		}
		int m;
		cout << "Nhan 1 de tro lai!\n";
		do { cin >> m; } while (m != 1);
		if (m == 1)
			main_customer(ad, ma, cu, z, pro,giohang);
	}
	if (n == 2) {
		string p;
		int m;
		do {
			cout << "Nhap id san pham can tim: ";
			cin >> p;
		} while (search_pro(pro, p, m) == 0);
		int x;
		cout << "Ban co muon them san pham nay vao gio hang khong?\n";
		cout << "1. Them vao gio hang          2.Thoat\n";
		cin >> x;
		if (x == 1) {
			int y;
			cout << "Nhap so luong muon mua: ";
			cin >> y;
			while (y > pro.soluong[m]) {
				cout << "San pham con it hon so ban nhap, vui long nhap lai :";
				cin >> y;
			};
			giohang.kh.push_back(cu.user[z]);
			giohang.id.push_back(pro.id[m]);
			giohang.ten.push_back(pro.ten[m]);
			giohang.hsd.push_back(pro.hsd[m]);
			giohang.soluong.push_back(y);
			pro.soluong[m] = pro.soluong[m] - y;
			giohang.tongtien.push_back(y*pro.gia[m]);
			int a;
			cout << "Nhan 1 de tro lai!\n";
			do { cin >> a; } while (a != 1);
			if (a == 1)
				main_customer(ad, ma, cu, z, pro, giohang);
		}
		else if (x == 2) {
			main_customer(ad, ma, cu, z, pro, giohang);
		}
	}
	if (n == 3) {
		cout << "Danh sach san pham: \n";
		cout << setw(10) << left << "ID" <<
			setw(40) << left << "Ten SP" <<
			setw(20) << left << "NSX" <<
			setw(20) << left << "HSD" <<
			setw(10) << left << "SL" <<
			setw(20) << left << "Gia" << endl;
		for (int i = 0; i < pro.id.size(); i++) {
			cout << setw(10) << left << pro.id[i] <<
				setw(40) << left << pro.ten[i] <<
				setw(20) << left << pro.nsx[i] <<
				setw(20) << left << pro.hsd[i] <<
				setw(10) << left << pro.soluong[i] <<
				setw(20) << left << pro.gia[i] << endl;
		}
		string a;
		int b;
		bool c;
		do {
			cout << "Nhap id san pham ban muon mua(them vao gio hang): ";
			cin >> a;
			for (int i = 0; i < pro.id.size(); i++) {
				if (a == pro.id[i]) {
					cout << "Nhap so luong muon mua: ";
					cin >> b;
					while (b > pro.soluong[i]) {
						cout << "San pham con it hon so ban nhap, vui long nhap lai :";
						cin >> b;
					}
					giohang.kh.push_back(cu.user[z]);
					giohang.id.push_back(pro.id[i]);
					giohang.ten.push_back(pro.ten[i]);
					giohang.hsd.push_back(pro.hsd[i]);
					giohang.soluong.push_back(b);
					pro.soluong[i] = pro.soluong[i] - b;
					giohang.tongtien.push_back(b*pro.gia[i]);
					cout << "San pham da them vao gio hang!\n";
					c = true;
					break;
				}
				else if (i == pro.id.size() - 1)
					cout << "ID khong ton tai!\n";
				c = false;
			}
		} while (c == false);
		int m;
		cout << "Nhan 1 de tro lai!\n";
		do { cin >> m; } while (m != 1);
		if (m == 1)
			main_customer(ad, ma, cu, z, pro,giohang);
	}
	if (n == 4) {
		reset(cu, z);
		int m;
		cout << "Nhan 1 de tro lai!\n";
		do { cin >> m; } while (m != 1);
		if (m == 1)
			main_customer(ad, ma, cu, z, pro,giohang);
	}
	if (n == 5) {
		cout << "Ban dang xuat thanh cong!\n";
		start(ad, ma, cu, pro, giohang);
	}
}
void list(Acc &acc) {
	cout << setw(25) << left << "Username" << setw(25) << right << "Password\n";
	for (int i = 0; i < acc.user.size(); i++) {
		cout << setw(25) << left<< acc.user[i] << setw(25) << right << acc.pass[i]<<endl;
	}
}
bool del(Acc &acc) {
	string us;
	int y;
	bool x;
	do {
		cout << "Nhap user cua nhan vien ma ban muon xoa: ";
		cin >> us;
		for (int i = 0; i < acc.user.size(); i++) {
			if (us == acc.user[i]) {
				y = i;
				x = true;
				break;
			}
			else if (i == acc.user.size() - 1) {
				x = false;
				cout << "user khong ton tai!\n";
			}
		}
	} while (x == false);
	acc.user.erase(acc.user.begin() + y);
	acc.pass.erase(acc.pass.begin() + y);
	cout << "Ban xoa tai khoan thanh cong!\n";
	return 1;
}
bool add(Acc &acc) {
	string us,pa;
	bool x;
	do {
		cout << "Nhap username ban muon them: ";
		cin >> us;
		for (int i = 0; i < acc.user.size(); i++) {
			if (us == acc.user[i]) {
				cout << "Account da ton tai!\n";
				break;
				x = false;
			}
			else if (i == acc.user.size() - 1)
				x = true;
		}
	} while (x == false);
	cout << "Nhap password: ";
	cin >> pa;
	acc.user.push_back(us);
	acc.pass.push_back(pa);
	return 1;
}
void reset(Acc &acc,int &z) {
	string p_old, p_new;
	cout << "Nhap mat khau cu: ";
	cin >> p_old;
	while (p_old != acc.pass[z]) {
		cout << "Nhap sai. Nhap lai mat khau cu: ";
		cin >> p_old;
	}
	cout << "Nhap mat khau moi: ";
	cin >> p_new;
	acc.pass[z] = p_new;
	cout << "Doi mat khau thanh cong!\n";
	cout << endl << acc.pass[z] << endl;
}
bool search_acc(Acc &acc, string &s) {
	for (int i = 0; i < acc.user.size(); i++) {
		if (s == acc.user[i]) {
			cout << setw(25) << left << "Username" <<
				setw(25) << left << "Password" <<
				setw(25) <<"Loai tai khoan"<<endl;
			cout << setw(25) << left << acc.user[i] <<
				setw(25) << left << acc.pass[i];
			return 1;
			break;
		}
		else if (i == acc.user.size() - 1)
		{
			cout << "Khong tim thay tai khoan!\n";
			return 0;
		}
	}
}
bool search_pro(Product &pro, string &s, int &m) {
	for (int i = 0; i < pro.id.size(); i++) {
		if (s == pro.id[i]) {
			cout << setw(10) << left << "ID" <<
				setw(40) << left << "Ten SP" <<
				setw(20) << left << "NSX" <<
				setw(20) << left << "HSD" <<
				setw(10) << left << "SL" <<
				setw(20) << left << "Gia" << endl;
			cout << setw(10) << left << pro.id[i] <<
				setw(40) << left << pro.ten[i] <<
				setw(20) << left << pro.nsx[i] <<
				setw(20) << left << pro.hsd[i] <<
				setw(10) << left << pro.soluong[i] <<
				setw(20) << left << pro.gia[i] << endl;
			m = i;
			return 1;
			break;
		}
		else if (i == pro.id.size() - 1) {
			cout << "Khong tim thay san pham!\n";
			return 0;
		}
	}
}