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

namespace GZ.Projects.AuxAllWCS
{
    public partial class AutoThread
    {

        private static AutoThread _instance;

        // 私有构造函数防止外部实例化
        private AutoThread() { }

        public static AutoThread Instance
        {
            get
            {
                if (_instance == null)
                {
                    _instance = new AutoThread();
                }
                return _instance;
            }
        }

        // 线程安全的委托缓存
        private static readonly ConcurrentDictionary<string, Delegate> _methodCache = new ConcurrentDictionary<string, Delegate>();

        // 方法执行器
        public static object InvokeMethod(object instance, string methodName, params object[] args)
        {
            var cacheKey = $"{instance.GetType().FullName}_{methodName}";

            if (!_methodCache.TryGetValue(cacheKey, out var methodDelegate))
            {
                // 获取方法信息
                var methodInfo = instance.GetType().GetMethod(
                    methodName,
                    BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);

                if (methodInfo == null)
                    throw new MissingMethodException($"Method {methodName} not found");

                // 创建委托并缓存
                methodDelegate = Delegate.CreateDelegate(
                    GetDelegateType(methodInfo),
                    instance,
                    methodInfo);

                _methodCache.TryAdd(cacheKey, methodDelegate);
            }

            // 执行委托
            return methodDelegate.DynamicInvoke(args);
        }

        // 根据方法签名生成对应的委托类型
        private static Type GetDelegateType(MethodInfo methodInfo)
        {
            var parameterTypes = methodInfo.GetParameters()
                .Select(p => p.ParameterType)
                .ToList();

            if (methodInfo.ReturnType == typeof(void))
            {
                return System.Linq.Expressions.Expression.GetActionType(parameterTypes.ToArray());
            }
            else
            {
                parameterTypes.Add(methodInfo.ReturnType);
                return System.Linq.Expressions.Expression.GetFuncType(parameterTypes.ToArray());
            }
        }





        public void ThreadSettingInit(Tag tag, Action action)
        {
            Console.WriteLine("初始化配置 线程 run " + tag.Global.SettingsOver);
            if (tag.Global.SettingsOver == 0)
            {
                action?.Invoke();
                tag.Global.SettingsOver = 1;
            }
            else if (Settings.deviceInfos.Count == 0)
            {
                tag.Global.SettingsOver = 0;
            }
        }


    }
}