using System.ComponentModel;
using System.Reflection;

namespace Bitget_Server.Infrastructure.Utils;

public static class Convertor
{
    /// <summary>
    /// Enum의 Description Attribute 문자열을 가져온다.
    /// </summary>
    public static string GetEnumDescription(Enum source)
    {
        FieldInfo fi = source.GetType().GetField(source.ToString());
        if (fi == null) return source.ToString();

        var att = (DescriptionAttribute)fi.GetCustomAttribute(typeof(DescriptionAttribute));
        return att != null ? att.Description : source.ToString();
    }

    /// <summary>
    /// DateTime -> Unix 타임스탬프(초 단위, KST 9시 기준). 기존 WinForms 로직과 동일.
    /// </summary>
    public static long GetDateTimeToUnixtimeStamp(DateTime datetime)
    {
        return (long)(datetime - new DateTime(1970, 1, 1, 9, 0, 0)).TotalSeconds;
    }

    /// <summary>
    /// Unix ms 타임스탬프 -> DateTime (KST 9시 기준).
    /// </summary>
    public static DateTime GetUnixtimeStampToDateTime(long unixStamptime)
    {
        return new DateTime(1970, 1, 1, 9, 0, 0).AddMilliseconds(unixStamptime);
    }
}