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

namespace OASystem.Domain.Enums
{
    public static class EnumHelper
    {
        //--extension
        /// <summary>
        /// 获取当前枚举描述
        /// </summary>
        /// <param name="enumValue"></param>
        /// <returns></returns>
        public static string GetEnumDescription(this Enum enumValue)
        {
            try
            {
                Type type = enumValue.GetType();
                MemberInfo[] memInfo = type.GetMember(enumValue.ToString());
                if (null != memInfo && memInfo.Length > 0)
                {
                    object[] attrs = memInfo[0].GetCustomAttributes(typeof(DescriptionAttribute), false);
                    if (null != attrs && attrs.Length > 0)
                        return ((DescriptionAttribute)attrs[0]).Description;
                }
                return enumValue.ToString();
            }
            catch (Exception)
            {
                return "";
            }
        }

        //根据值获取枚举方法
        public static Enum GetEnumByValue(Type enumType, string value)
        {
            return Enum.Parse(enumType, value) as Enum;
        }
    }
}