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

namespace StandardLibrary
{
    public static class EnumExt
    {
        public static bool TryParseEnum<T>(object value, out T result) where T : struct, Enum
        {
            result = default;
            if (Enum.IsDefined(typeof(T), value))
            {
                result = (T)Enum.ToObject(typeof(T), value);
                return true;
            }
            return false;
        }

        /// <summary>
        /// 获取枚举值的 Description 特性文本，如果没有则返回枚举名称
        /// </summary>
        public static string GetDescription(this Enum value)
        {
            var field = value.GetType().GetField(value.ToString());
            if (field == null) return value.ToString();

            var attribute = Attribute.GetCustomAttribute(
                field,
                typeof(DescriptionAttribute)) as DescriptionAttribute;

            return attribute?.Description ?? value.ToString();
        }

    }
}