using System;
using System.Collections.Generic;
using System.Threading;
using Entitas;
using JNGame.Runtime.Util;
using JNGame.Sync;
using JNGame.Sync.Entity;
using JNGame.Sync.Frame.Service;
using JNGame.Sync.System;
using UnityEngine;

namespace JNGame.Runtime.Sync
{
    public abstract class JNSyncDefaultService : JNSyncService
    {
        
        private SBaseSystem[] _allSystems;
        protected override JNBaseSystem[] AllSystems => _allSystems;

        public JNContexts Contexts;
        
        /// <summary>
        /// 是否开始游戏
        /// </summary>
        public abstract bool IsStartGame { get; }

        /// <summary>
        /// 子线程
        /// </summary>
        private Thread thread;

        /// <summary>
        /// 执行时间
        /// </summary>
        protected int TickTime;
        

        public JNSyncDefaultService() : base()
        {
            var main = UnityMainThreadDispatcher.Instance;
        }

        public override void Initialize()
        {
            base.Initialize();
            
            Contexts = CreateContexts();
            Contexts.Sync = this;
            Contexts.InitReference(this);
            var systems = new List<SBaseSystem>();
            systems.Add(CreateRandom());
            systems.AddRange(NewLogicSystems());
            systems.AddRange(NewDataSystems());
            systems.AddRange(NewViewSystems());
            _allSystems = systems.ToArray();
            
            foreach (var system in _allSystems)
            {
                system.Sync = this;
                system.Contexts = Contexts;
                Add(system);
            }
            
            Debug.Log("Initialize");
            
        }

        public void Dispose()
        {
            base.Cleanup();
            thread?.Abort();
            thread = null;
        }

        public override Systems Add(ISystem system)
        {
            (system as IJNSyncCycle)?.OnSyncStart();
            return base.Add(system);
        }

        public virtual JNContexts CreateContexts()
        {
            return new JNContexts();
        }
        
        //随机数系统
        public virtual JNRandomSystem CreateRandom()
        {
            return new JNRandomSystem(1000);
        }
        
        public virtual SLogicSystem[] NewLogicSystems()
        {
            return Array.Empty<SLogicSystem>();
        }
        
        public virtual SDataSystemBase[] NewDataSystems()
        {
            return Array.Empty<SDataSystemBase>();
        }
        
        public virtual SViewSystem[] NewViewSystems()
        {
            return Array.Empty<SViewSystem>();
        }

        /// <summary>
        /// 更新(不可在外部调用)
        /// </summary>
        public override void Execute()
        {
            
#if (!ENTITAS_DISABLE_VISUAL_DEBUGGING && UNITY_EDITOR)
            if (paused) return;
#endif
            UnityMainThreadDispatcher.Instance.Enqueue(base.Execute);
            
        }
        
        /// <summary>
        /// Unity主线程更新
        /// </summary>
        /// <param name="ms"></param>
        public void MExecute(int ms = -1)
        {
            if (ms <= -1) ms = (int)(Time.deltaTime * 1000);
            TickTime = ms;
            Execute();
        }

        /// <summary>
        /// 线程更新
        /// </summary>
        public void TStartExecute(int ms = -1)
        {

            if (ms <= -1) ms = DeltaTime;

            thread = new Thread(() =>
            {
                while (thread is not null && thread.ThreadState != ThreadState.Aborted)
                {
                    Thread.Sleep(ms);
                    TickTime = ms;
                    if(thread is not null) Execute();
                }
            });
            thread.Start();
        }
        public void TStopExecute()
        {
            thread?.Abort();
            thread = null;
        }

        /// <summary>
        /// 推逻辑帧
        /// </summary>
        protected virtual void Simulate()
        {
            
#if (!ENTITAS_DISABLE_VISUAL_DEBUGGING && UNITY_EDITOR)
            SyncDuration = 0;
            var timeSimulate = DateTime.Now.Ticks;
#endif
            
            for (int i = 0; i < _syncSystems.Count; i++)
            {

                
#if (!ENTITAS_DISABLE_VISUAL_DEBUGGING && UNITY_EDITOR)
                if (syncSystemInfos[i].isActive){

                    var time = DateTime.Now.Ticks;
                    _syncSystems[i].OnSyncUpdate(DeltaTime);
                    double time1 = (DateTime.Now.Ticks - time) / 10000f;
                    syncSystemInfos[i].AddSyncUpdateDuration(time1);
                    
                }
#else
                _syncSystems[i].OnSyncUpdate(DeltaTime);
#endif
            }
            
            //给实体推帧
            Contexts.Simulate();
            
#if (!ENTITAS_DISABLE_VISUAL_DEBUGGING && UNITY_EDITOR)
            SyncDuration = (DateTime.Now.Ticks - timeSimulate) / 10000f;
#endif

        }

    }
        
}