using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ServiceShared.Crypto
{
    public static class MD5
    {
        /// <summary>
        /// Encryptes a string value in md5 hash
        /// </summary>
        /// <param name="value">string value that should be encrypted in MD5 hash</param>
        /// <returns>Returns MD5 hash</returns>
        public static string Encrypt(string value)
        {
            string result = null;

            try
            {
                byte[] bytes = Encoding.UTF8.GetBytes(value);

                using (System.Security.Cryptography.MD5 hash = System.Security.Cryptography.MD5.Create())
                {
                    byte[] hashedInputBytes = hash.ComputeHash(bytes);

                    StringBuilder hashedInputStringBuilder = new StringBuilder(128);

                    foreach (var b in hashedInputBytes)
                    {
                        hashedInputStringBuilder.Append(b.ToString("X2"));
                    }

                    result = hashedInputStringBuilder.ToString().ToLower();
                }
            }
            catch
            {
                result = null;
            }

            return result;
        }
    }
}