using System;
using System.Text;

namespace _0_Framework.Application;

public class CodeGenerator
{
    public static string Generate(string symbol)
    {
        return $"{symbol}{RandomString()}{RandomNumber()}";
    }

    private static string RandomString()
    {
        const int length = 2;

        var strBuild = new StringBuilder();
        var random = new Random();

        for (var i = 0; i <= length; i++)
        {
            var flt = random.NextDouble();
            var shift = Convert.ToInt32(Math.Floor(25 * flt));
            var letter = Convert.ToChar(shift + 65);
            strBuild.Append(letter);
        }

        return strBuild.ToString();
    }

    private static string RandomNumber()
    {
        var random = new Random();
        return random.Next(100, 999).ToString();
    }
}