import java.util.*;
import java.time.*;
public class payment {
	static String username="";
	static String password="";
	static int pin;
	static String email="";
	static double balance=0;
	static String History="";

	 static void reg()
	{
		 Scanner in=new Scanner(System.in);
		System.out.println("enter username");
		 username=in.nextLine();
		System.out.println("create password");
		password=in.nextLine();
		System.out.println("create pin");
		pin=in.nextInt();
		in.nextLine();
		System.out.println("enter email");
		email=in.nextLine();
	}
	 static void login()
	 {
		 Scanner sc=new Scanner(System.in);
		 System.out.println("enter username");
		 String username1=sc.nextLine();
		 System.out.println("enter password");
		 String password2=sc.nextLine();
		 System.out.println("enter pin");
		 int pin2=sc.nextInt();
		 sc.nextLine();
		 System.out.println("enter email");
		 String email2=sc.nextLine();
		if(username1.equals(username) && password2.equals(password) && pin2==pin && email2.equals(email))
		{
			System.out.println("login successfull");
			accountmenu();
		 }
		else {
			System.out.println("login failed");
		}

	 }
	 static void accountmenu()
	 {
		 System.out.println("account menu---->");
		 Scanner in=new Scanner(System.in);

		 boolean loggedin=true;
		 while(loggedin)
		 {
		 System.out.println("1. Add money");
		 System.out.println("2.withdraw money");
		 System.out.println("3.send money");
		 System.out.println("4.receive money");
         System.out.println("5. check balance");
		 System.out.println("6.check pin");
		 System.out.println("7.history");
		 System.out.println("8. logout");
		 System.out.println("enter choice");
		 int ch=in.nextInt();
		 switch(ch)
		 {
		 case 1:
			 addmoney();
			 break;
		 case 2:
			 withdrawmoney();
			 break;
		 case 3:
			 sendmoney();
			 break;
		 case 4:
			 receivemoney();
			 break;
		 case 5:
			 checkbalance();
			 break;
		 case 6:
			 checkpin();
			 break;
		 case 7:
			 showhistory();
			 break;
		 case 8:
			 loggedin=false;
			 break;
			 default:
			 System.out.println("invalid choice");
		    }
    	 }
	 }
	 static void addmoney()
	 {
		 Scanner in=new Scanner(System.in);
		 System.out.println("enter money to be added");
		 double amt=in.nextInt();
		 balance+=amt;
		 addHistory("added--" + amt);
	 }
	 static void  withdrawmoney()
	 {
		 Scanner in=new Scanner(System.in);
		 System.out.println("enter amount to be withdrawed");
		 double amt=in.nextInt();

		 if(amt>balance)
		 {
			 System.out.println("cannot be withdrawed");
		 }
		 else {
			 balance=balance-amt;
			 System.out.println("amt withdrawed " + amt);
			 addHistory("money withdrawed: " + amt);
		 }
	 }
	 static void sendmoney()
	 {
		 Scanner in=new Scanner(System.in);
		 System.out.println("enter amount to be sent");
		 double amt=in.nextDouble();
		 if(amt>balance)
		 {
			 System.out.println("insufficient balance");
		 }
		 else
		 {
			 balance=balance-amt;
			 System.out.println("enter receiver name:");
			 String st=in.nextLine();
			 addHistory("sent money " + amt + " to " + st);
			 System.out.println("money sent");
		 }
	 }
	 static void receivemoney()
	 {
		 Scanner in=new Scanner(System.in);
		 System.out.println("enter amt to be received");
		 double amt = in.nextDouble();
		 balance=balance+amt;
		 System.out.println("enter money sender name");
		 String st1=in.nextLine();
		 addHistory("amt received " + amt + "from " + st1);

	 }
	 static  void checkbalance()
	 {
		 System.out.println("available balance: " + balance );
	 }

	 static void checkpin()
	 {
		 Scanner in=new Scanner(System.in);
		 System.out.println("enter pin to be checked");
		 int pin3=in.nextInt();
		 if(pin3==pin)
		 {
			 System.out.println("entered pin is valid");
		 }
		 else {
			 System.out.println("pin is invalid");
		 }

	 }

	 static void showhistory()
	 {
		 if(History.equals(""))
		 {
			 System.out.println("no history");
		 }
		 else {
			 System.out.println("history :" + History);
		 }
	 }


	 static void addHistory(String data)
	 {
		 LocalDateTime now = LocalDateTime.now();
		  History+= data + " | " + now + " " ;
	 }
	 public static void main(String []args)
	 {
		while(true)
		{

		Scanner in=new Scanner(System.in);
		System.out.println("1.register if not login");
		System.out.println("2.login");
		System.out.println("3.exit");
		System.out.println("enter your choice");
		int ch=in.nextInt();
		switch(ch)
		{
		case 1:
			reg();
			break;
		case 2:
			login();
			break;
		case 3:
			System.exit(0);
			break;

		}

	}

   }

}