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

namespace MECF.Framework.Common.Utilities
{
    /// <summary>
    /// 枚举扩展获取Description
    /// </summary>
    public static class EnumExtensions
    {
        public static string ToDescription<T>(this T enumValue) where T : IConvertible
        {
            // 获取枚举值的名称
            var name = Enum.GetName(typeof(T), enumValue);

            // 获取字段信息
            var field = typeof(T).GetField(name);

            // 获取DescriptionAttribute
            var attribute = field.GetCustomAttributes(typeof(DescriptionAttribute), false)
                                 .FirstOrDefault() as DescriptionAttribute;

            // 返回Description属性的值，如果不存在则返回null
            return attribute?.Description;
        }
    }
}