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

namespace ZXKFramework
{
    public static class MVC
    {
        //资源
        public static Dictionary<string, Model> Models = new Dictionary<string, Model>(); //名字 -- model
        public static Dictionary<string, View> Views = new Dictionary<string, View>(); // 名字 -- view
        public static Dictionary<string, Type> CommandMap = new Dictionary<string, Type>(); //事件名字 -- 类型

        //注册view
        public static void RegisterView(View view)
        {
            //防止view重复注册
            if (Views.ContainsKey(view.Name))
            {
                Views.Remove(view.Name);
            }
            view.RegisterAttentionEvent();
            Views[view.Name] = view;
        }

        //注册model
        public static void RegisterModel(Model model)
        {
            Models[model.Name] = model;
        }

        //注册controller
        public static void RegisterController(string eventName, Type controllerType)
        {
            CommandMap[eventName] = controllerType;
        }

        //获取model
        public static T GetModel<T>() where T : Model
        {
            foreach (var m in Models.Values)
            {
                if (m is T)
                {
                    return (T)m;
                }
            }
            return null;
        }

        //获取view
        public static T GetView<T>() where T : View
        {
            foreach (var v in Views.Values)
            {
                if (v is T)
                {
                    return (T)v;
                }
            }
            return null;
        }

        //发送事件
        public static void SendEvent(string eventName, object data = null)
        {
            //controller执行
            if (CommandMap.ContainsKey(eventName))
            {
                Type t = CommandMap[eventName];
                //控制器生成
                Controller c = Activator.CreateInstance(t) as Controller;
                c.Execute(data);
            }
            //view处理
            foreach (var v in Views.Values)
            {
                if (v.AttentionList.Contains(eventName))
                {
                    //执行
                    v.HandleEvent(eventName, data);
                }
            }
        }
    }
}