using System.Linq;

namespace Week3Day1Homework
{
    internal class Bob
    {
        public string hey(string input)
        {
            if (isYelling(input))
            {
                return "Whoa, chill out!";
            }
            if (isAQuestion(input))
            {
                return "Sure.";
            }
            if (sayingNothing(input))
            {
                return "Fine. Be that way!";
            }
            else
            {
                return "Whatever.";
            }
        }
        private bool isYelling(string remark)
            {
            if (remark.All(x => char.IsUpper(x) || char.IsPunctuation(x) || char.IsSeparator(x) || char.IsNumber(x) || char.IsSymbol(x)) && remark.Any(x => char.IsUpper(x)))
            {
                return true;
            }
            else
            {
                return false;
            }

        }
        private bool isAQuestion(string remark)
        {
            if (remark.EndsWith("?"))
            {
                return true;
            }
            else
            {
                return false;
            }
        }
        private bool sayingNothing(string remark)
        {
            if ((remark == "") || (!remark.Any(x => char.IsLetter(x) || char.IsNumber(x))))
            {
                return true;
            }
            else
            {
                return false;
            }

        }
    }
    }