using System;

using System.Reflection.Metadata;

using System.Text;

using System.Threading.Channels;

​

​

namespace testt

{

    internal class Program

    {

​

        static void Main(string[] args)

        {

           while (true) 

           { 

​

            Console.WriteLine("Please Selecet An Operation to Do");

            Console.WriteLine("[1] Make randowm Number code \n");

            Console.WriteLine("[2] make Randowm Authecator Code ");

​

            var UserSelecetedOption = Console.ReadLine();

​

                if (UserSelecetedOption == "1")

                {

                    Console.WriteLine("==========================================================\n");

​

                    GenerateRandowmNumber();

​

                    Console.WriteLine("==========================================================\n");

​

                }

                else if (UserSelecetedOption == "2")

                {   

                    Console.WriteLine("==========================================================\n");

​

​

                    GenerateRnadomCode();

​

                    Console.WriteLine("==========================================================\n");

​

                }

                else if (UserSelecetedOption == $"exit{StringComparison.OrdinalIgnoreCase}") // Exit And Close Program (To Do )

                    break;

​

​

​

​

​

                //if (UserSelecetedOption == $"exit{StringComparison.OrdinalIgnoreCase}")

                      //  break;

​

​

​

           }

​

        }

​

​

        private const string Buffer = "ABCDEFGHILMNOPQRSTUVQURWXYZabcdefghilmnopqrstuvqurwxyz0123456789!#@$%^&*";

        private static void GenerateRnadomCode()

        {

            var sb = new StringBuilder();

            var rnd = new Random();

​

            // Check how many Char User need the Code Be ! 

            Console.WriteLine("Enter How Many Char you Need in Code "); 

            var sbLength = Console.ReadLine();

​

​

            while (sb.Length < int.Parse(sbLength)) 

            {

                var randomIndex = rnd.Next(0, Buffer.Length - 1);      

                sb.Append(Buffer[randomIndex]);

            }

​

            Console.WriteLine($"Your Randowm Code Is : {sb}");

        }

​

        static void GenerateRandowmNumber()

        {

            Console.WriteLine("Ok Please Selecet An Min number to start from : \n ");

            int minValue = int.Parse(Console.ReadLine()); 

​

            if (minValue < 0)

            { 

                Console.WriteLine("No You Enter Invaild Negative Number!!! ");

                Console.WriteLine("ReEnter Posotive Number  ^_^ \n");

​

                GenerateRandowmNumber();

​

​

​

            }

            Console.WriteLine("Ok Please Selecet An Max number to End With : ");

            int maxValue = int.Parse(Console.ReadLine());

​

​

            if (maxValue < minValue)

            { 

                Console.WriteLine("MaxNumber IS Greater Than MinNumber (; \n"); //Check if MaxNumber Is Greater Than MinNumber

​

                GenerateRandowmNumber();                                        // if that happen Return to MAin Menu

            }

​

            var rnd = new Random();

            var value = rnd.Next(minValue , maxValue);

            Console.WriteLine($"Randowm Number is:  {value}");

​

​

        }

    }

}

​