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

namespace Saviour_Backup_System
{
    class tools
    {
        public static string Trim(string value, int maxLength)
        {
            if (value.Length > maxLength)
            {
                return value.Substring(0, maxLength - 3) + "...";
            }
            return value;
        }

        public static string hash(string input)
        {
            // step 1, calculate MD5 hash from input
            MD5 md5 = MD5.Create();
            byte[] inputBytes = System.Text.Encoding.ASCII.GetBytes(input);
            byte[] hash = md5.ComputeHash(inputBytes);

            // step 2, convert byte array to hex string
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < hash.Length; i++)
            {
                sb.Append(hash[i].ToString("X2"));
            }
            return sb.ToString();
        }
        public static Int64 getUnixTimeStamp() { return (Int64)(DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).TotalSeconds; }
    }
}