using HStation.RevitDev.Model.ModelEnum;
using System;
using System.ComponentModel;
using System.Reflection;


namespace HStation.RevitDev.RevitDataExport.Common
{
    /// <summary>
    /// 描述特性的读取扩展类
    /// </summary>
    public static class DescriptionExtension
    {
        /// <summary>
        /// 获取枚举的描述信息
        /// </summary>
        public static string GetDescription(this RevitType em)
        {
            Type type = em.GetType();
            FieldInfo fd = type.GetField(em.ToString());
            string des = fd.GetDescription();
            return des;
        }



        /// <summary>
        /// 获取属性的描述信息
        /// </summary>
        public static string GetDescription(this Type type, string proName)
        {
            PropertyInfo pro = type.GetProperty(proName);
            string des = proName;
            if (pro != null)
            {
                des = pro.GetDescription();
            }
            return des;
        }



        /// <summary>
        /// 获取属性的描述信息
        /// </summary>
        public static string GetDescription(this MemberInfo info)
        {
            var attrs = (DescriptionAttribute[])info.GetCustomAttributes(typeof(DescriptionAttribute), false);
            string des = info.Name;
            foreach (DescriptionAttribute attr in attrs)
            {
                des = attr.Description;
            }
            return des;
        }

        public static string GetDescriptioin(this Enum info)
        {
            Type enumType = info.GetType();
            MemberInfo[] memberInfo = enumType.GetMembers();
            foreach (MemberInfo member in memberInfo)
            {
                string enumName = member.Name;
                if (enumName == info.ToString())
                {
                    var attrs = member.GetCustomAttributes(typeof(DescriptionAttribute), false);
                    if (attrs.Length == 0) { return string.Empty; }

                    DescriptionAttribute attr = attrs[0] as DescriptionAttribute;
                    return attr.Description;
                }
            }
            return string.Empty;
        }
    }
}