import java.time.* ;
import java.time.format.DateTimeParseException;
import java.util.Scanner;


public class Input
{
    private static Scanner scan = new Scanner(System.in);

    public static void UseEnterAsDelimiter()
    {
        scan.useDelimiter(System.getProperty("line.separator"));
    }

    public static int IntInRange(int min , int max, String InvalidMsg )
    {
        int value;

        while(true)
        {
            while (!scan.hasNextInt())
            {
                System.out.println("Expected an Integer. Please type again.");
                scan.next();
            }

            value = scan.nextInt();

            if( value >= min && value <= max)
                return value;
            else
            {
                System.out.println(InvalidMsg);
            }
        }
    }

    public static int Int()
    {
        int value;

        while (true)
        {
                while (!scan.hasNextInt())
                {
                    System.out.println("Expected an Integer. Please type again.");
                    scan.next();
                }

                value = scan.nextInt();

            return value;
        }
    }

    public static String String()
    {
        return scan.next();
    }

    public static String StringNoEmpty()
    {
        String value;

        while(true)
        {
            value = scan.next();
            if ( !value.isEmpty())
                return value;
            else
                System.out.println("Input cannot be blank. Please type again.");
        }

    }

    public static LocalDate Date()
    {
        LocalDate value;

        while(true)
        {
            try
            {
                String input = scan.next();
                if( input.isEmpty())
                    System.out.println("Field cannot be empty.");
                else
                {
                    value = LocalDate.parse(input);
                    return value;
                }
            }
            catch(DateTimeParseException e)
            {
                System.out.println("Date was not given in a correct format , please type it again.");
            }
        }
    }

    public static LocalTime Time()
    {
        LocalTime value;

        while(true)
        {
            try
            {
                String input = scan.next();
                if( input.isEmpty())
                    System.out.println("Field cannot be empty.");
                else
                {
                    value = LocalTime.parse(input);
                    return value;
                }
            }
            catch(DateTimeParseException e)
            {
                System.out.println("Time was not given in a correct format , please type it again.");
            }
        }
    }

    public static void CloseScanner()
    {
        scan.close();
    }


}