#include <iostream>
#include <string>
#include <stdlib.h>
#include <fstream>
#include<conio.h>
#include<windows.h>
#include<iomanip>
using namespace std;
bool login();
void studlog();
void reginput();


int main(){


	studlog();
	cout<<"Program starts here";
}
void studlog(){
bool on=true;
int choice;
while (on != false){
cout << "   S T U D E N T  L O G I N\n";
cout << "*******************************\n";
cout << " 1 - Login.\n";
cout << " 2 - Register.\n";
cout << " 3 - Exit.\n";
cout << "*******************************\n";
cin>> choice;
switch (choice)
{
case 1:
system("cls");
on = login();
system("pause");
system("cls");
break;

case 2:
system("cls");
reginput();
system("pause");
system("cls");
break;

case 3:
on= false;
break;
}
}

}

void reginput(){
	string regUser, regPass;
		cout<<"Username:";
		cin>>regUser;
		cout<<"Password:";
		cin>>regPass;

		ofstream file;
		file.open(regUser.c_str());
		file <<regUser<<endl<<regPass;
		file.close();
}

bool login(){
string logUser;
string logPass;
string pass;
string usern;
cout<<"Enter Username: ";
cin>> logUser;
cout<<"Enter Password: ";
cin>> logPass;

ifstream read(logUser.c_str());
getline(read, usern);
getline(read, pass);

if (usern == logUser && pass==logPass){
	cout << "You have been logged in!"<<endl;
	return false;
}

else{
	cout << "Invalid username or id!"<<endl;
	return true;
}
}