using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
//引用反射
using System.Reflection;

namespace CoderEngine
{



    /// <summary>
    /// 临时存储遍历出来的类型描述
    /// </summary>
    public class TypeMode
    {
        /// <summary>
        /// 字段名称
        /// </summary>
        public Type MemberType { get; set; }
        /// <summary>
        /// 类型名称
        /// </summary>
        public string Name { get; set; }

        /// <summary>
        /// 是否有嵌套下级
        /// </summary>
        public int IsHaveSou = 0;
        /// <summary>
        /// 嵌套类型 如果有包裹下级类型的话 则不为空 Null
        /// </summary>
        public List<TypeMode> TypeList = null;
        /// <summary>
        /// 下级参数类型
        /// </summary>
        public Type DownParamType { get; set; }
        /// <summary>
        /// 下级参数名称
        /// </summary>
        public string DownParamName { get; set; }
    }
    /// <summary>
    /// 模型读取
    /// </summary>
    public class _ModleReader
    {
        
        public TypeMode TopType = new TypeMode();

        

        /// <summary>
        /// 检查程序及下的实体类
        /// </summary>
        /// <param name="_AssemblyName">程序集名称</param>
        /// <param name="_TypeName">ModelClass类型名称</param>
        /// <returns></returns>
        public TypeMode ModelCheck(string _AssemblyName, string _TypeName)
        {
            //Console.WriteLine("");
            //Console.WriteLine("======   C# 数据模型转Java实体类代码实现   ======");
            //Console.WriteLine("");
            //Console.WriteLine("读取程序集" + _AssemblyName + "下实体类" + _TypeName + "");

            //取得类型
            Type PerentType = Assembly.Load(_AssemblyName).GetType(_AssemblyName + "." + _TypeName);

            if (PerentType == null)
            {
                //Console.WriteLine("读取程序集或类不存在");
            }

            //Console.WriteLine("已成功反射获取程序集");

            TopType.MemberType = PerentType;
            //Console.WriteLine("对象类型："+ TopType.MemberType);
            TopType.Name = PerentType.Name;
            //Console.WriteLine("对象名称：" + TopType.Name);
            //获取下级属性
            TopType.TypeList = ReadModel(PerentType);
            //}

            return TopType;
        }

        /// <summary>
        /// 读取类型
        /// </summary>
        /// <param name="MethodItem"></param>
        public List<TypeMode> ReadModel(Type PerentType)
        {
            //Console.WriteLine("对" + TopType.Name + "进行详细处理");
            //获取属性
            PropertyInfo[] Plist = PerentType.GetProperties();

            List<TypeMode> TypeList = new List<TypeMode>();
            //Console.WriteLine("遍历"+ TopType.Name + "属性: 属性数量为"+ Plist.Count());
            foreach (var m in Plist)
            {
                TypeMode TM = new TypeMode();
                TM.Name = m.Name;
                //Console.WriteLine("----" + TopType.Name + "下属性名：" + TM.Name);
                TM.MemberType = m.PropertyType;
                //Console.WriteLine("----" + TopType.Name + "下属性" + TM.Name + " 类型为" + TM.MemberType.Name + "完整类型名" + TM.MemberType.Name);
                //如果是List<T>类型 则往下解析
                if (TM.MemberType.Name == "List`1")
                {

                    //注意：这里需要考虑排除无限极自我嵌套实体类型 否则出现死循环
                    //暂未处理
                    

                    //TM.MemberType.Name的FullName的值为 "System.Collections.Generic.List`1[[  --集合内嵌类型名称--, CoderEngine, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]]"
                    //其中包含内嵌List的名称 我们要将其取出  得到的值例如 “程序集.*.*类型”
                    var SonParamName = TM.MemberType.FullName.Substring(TM.MemberType.FullName.IndexOf("[") + 2);
                    SonParamName = SonParamName.Substring(0, SonParamName.IndexOf(","));
                    //取出集合内子类型所属的程序集名字
                    string SonParamFromAssemblyName = SonParamName.Substring(0,SonParamName.IndexOf('.'));
                    //反射载入子类型的类型
                    Type SonType = Assembly.Load(SonParamFromAssemblyName).GetType(SonParamName);

                    TM.IsHaveSou = 1;
                    TM.DownParamType = SonType;
                    TM.DownParamName = SonType.Name;

                    //Console.WriteLine("----对" + TopType.Name + "下属性" + TM.Name + " 嵌套泛型进行处理");
                    TM.TypeList = ReadModel(SonType);


                }
                TypeList.Add(TM);
            }
            return TypeList;
        }

    }
}