LotteryV2/website/Common/Utils.cs

using System;
using System.Globalization;
using System.Linq;

namespace LotteryWebApp.Common
{
    public static class Utils
    {
        public static string FormatMoney(string amount)
        {
            if (string.IsNullOrEmpty(amount)) return "0";
            var clean = new string(amount.Where(c => char.IsDigit(c)).ToArray());
            if (long.TryParse(clean, out long val))
            {
                return val.ToString("#,##0", new CultureInfo("vi-VN")).Replace(",", ".");
            }
            return amount;
        }

        public static string FormatResultDate(string dateStr)
        {
            if (string.IsNullOrEmpty(dateStr)) return "Monday, Mar 20, 2026";
            DateTime dt;
            if (DateTime.TryParseExact(dateStr, "dd/MM/yyyy HH:mm:ss", CultureInfo.InvariantCulture, DateTimeStyles.None, out dt))
            {
                return dt.ToString("dddd, MMM dd, yyyy", new CultureInfo("en-US"));
            }
            return dateStr;
        }
    }
}