using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Pcb.Common
{


    /// <summary>
    /// 帮助属性
    /// </summary>
    [AttributeUsage(AttributeTargets.All, AllowMultiple = true, Inherited = false)]
    public class InfoAttribute : System.Attribute
    {

        /// <summary>
        /// 构造
        /// </summary>
        /// <param name="name"></param>
        public InfoAttribute(string name)
        {
            this.Name = name;
        }

        /// <summary>
        /// 名称
        /// </summary>
        public string Name
        {
            get;
            set;
        }

        /// <summary>
        /// 描述
        /// </summary>
        public string Description
        {
            get;
            set;
        }

        /// <summary>
        /// 作者
        /// </summary>
        public string Author
        {
            get;
            set;
        }

        /// <summary>
        /// 创建时间
        /// </summary>
        public string CreateTime
        {
            get;
            set;
        }

        /// <summary>
        /// 得到自定义的Attribute名称
        /// </summary>
        /// <param name="customAttributes"></param>
        /// <returns></returns>
        public static string GetAttributesName(object[] customAttributes)
        {
            if (customAttributes == null)
                return string.Empty;

            string re = string.Empty;

            foreach (object obj in customAttributes)
            {
                if (obj == null) continue;

                if (obj is InfoAttribute)
                {
                    InfoAttribute at = (InfoAttribute)obj;
                    if (at.Name != null)
                    {
                        re = at.Name.Trim();
                        break;
                    }
                }

            }

            return re;

        }

        /// <summary>
        /// 取属性名称
        /// </summary>
        /// <param name="type"></param>
        /// <param name="proprtyName"></param>
        /// <returns></returns>
        public static string GetProprtyAttributeName(Type type, string proprtyName)
        {
            if (type == null)
                return string.Empty;

            foreach (System.Reflection.PropertyInfo p in type.GetProperties())
            {
                if (p.Name == proprtyName)
                {
                    return InfoAttribute.GetAttributesName(p.GetCustomAttributes(true));
                }
            }

            return string.Empty;

        }

        /// <summary>
        /// 取方法名称
        /// </summary>
        /// <param name="type"></param>
        /// <param name="proprtyName"></param>
        /// <returns></returns>
        public static string GetFunctionAttributeName(Type type, string proprtyName)
        {
            if (type == null)
                return string.Empty;

            foreach (System.Reflection.MemberInfo p in type.GetMethods())
            {
                if (p.Name == proprtyName)
                {
                    return InfoAttribute.GetAttributesName(p.GetCustomAttributes(true));
                }
            }

            return string.Empty;

        }

        //---

    }

}