using System;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Cysharp.Threading.Tasks;
using UnityEngine;
using WebSocketSharp;

namespace Game
{
    public interface ISocketManager
    {
        void SetHttpToken(string token);
        void SetHttpKey(string requestKey);
        void Connect();
        UniTask ConnectAsync();
        void SendMessage(string message);
        UniTask<bool> SendMessageAsync(string message);
        void CloseConnect();
    }

    public class SocketManager : ManagerBase, ISocketManager
    {
        private WebSocket _webSocket;
        private string token;
        private string requestKey;
        private bool isOpen;

        public SocketManager()
        {
            token = default;
            requestKey = default;
        }

        public void SetHttpToken(string token)
        {
            this.token = token;
        }

        public void SetHttpKey(string requestKey)
        {
            this.requestKey = requestKey;
        }

        async UniTask DisconnectAndReconnect()
        {
//            int time = 5;
//            int i = 0;
//            while (this.isOpen)
//            {
//                if (!this._webSocket.IsAlive)
//                {
//                    i++;
//                    await this.ConnectAsync();
//                    Debug.Log($"断线了，重连了{i}次");
//                    await UniTask.Yield();
//                }
//
//                await UniTask.Yield();
//            }
            await UniTask.Yield();
        }

        async UniTask Ping()
        {
//            float time = 0;
//            int i = 0;
//            while (this.isOpen)
//            {
//                time += Time.deltaTime;
//                if (time >= 5)
//                {
//                    time = 0;
//                    if (this._webSocket.IsAlive)
//                    {
//                        this._webSocket.Send("ping");
//                        Debug.Log("ping");
//                    }
//                }
//
//                await UniTask.Yield();
//            }
            await UniTask.Yield();
        }

        private float timePing = 0;
        private float timeDis = 0;
        private int countDis = 0;

        protected override void OnUpdate(float dateTime)
        {
            base.OnUpdate(dateTime);
            // 
            if (this.isOpen && this._webSocket != null && !this._webSocket.IsAlive)
            {
                timeDis += Time.deltaTime;
                if (this.timeDis >= 5)
                {
                    countDis++;
                    this.Connect();
//                    Debug.Log($"断线了，重连了{this.countDis}次");
                    timeDis = 0;
                }
            }

            // 
            if (this.isOpen && this._webSocket != null && this._webSocket.IsAlive)
            {
                this.timePing += Time.deltaTime;
                if (this.timePing >= 20)
                {
                    this.timePing = 0;
                    if (this._webSocket.IsAlive)
                    {
                        this._webSocket.Send("ping");
//                        Debug.Log("ping");
                    }
                }
            }
        }

        public void Connect()
        {
            if (this._webSocket == null)
            {
                using (this._webSocket = new WebSocket(NetworkConst.socketUrl))
                {
                    this.isOpen = true;
                    Conn();
                    this._webSocket.OnClose += OnClose;
                    this._webSocket.OnOpen += OnOpen;
                    this._webSocket.OnError += OnError;
                    this._webSocket.OnMessage += OnMessage;
                    DisconnectAndReconnect().Forget();
                    this.Ping().Forget();
                }
            }
            else
            {
                Conn();
            }
        }

        public async UniTask ConnectAsync()
        {
            if (this._webSocket == null)
            {
                using (this._webSocket = new WebSocket(NetworkConst.socketUrl))
                {
                    this.isOpen = true;
                    Conn();
                    await UniTask.Yield();
                    this._webSocket.OnClose += OnClose;
                    this._webSocket.OnOpen += OnOpen;
                    this._webSocket.OnError += OnError;
                    this._webSocket.OnMessage += OnMessage;
                    DisconnectAndReconnect().Forget();
                    this.Ping().Forget();
                }
            }
            else
            {
                Conn();
                await UniTask.Yield();
            }
        }

        void Conn()
        {
            this._webSocket.Connect();
        }

        public void SendMessage(string message)
        {
            this._webSocket.Send(message);
        }

        public async UniTask<bool> SendMessageAsync(string message)
        {
            int index = -1;
            this._webSocket.SendAsync(message, b => { index = b ? 0 : 1; });
            while (true)
            {
                if (index != -1)
                    return index == 0 ? true : false;

                await UniTask.Yield();
            }
        }

        public void CloseConnect()
        {
            this.isOpen = false;
            this._webSocket.Close();
            this._webSocket.OnClose -= OnClose;
            this._webSocket.OnOpen -= OnOpen;
            this._webSocket.OnError -= OnError;
            this._webSocket.OnMessage -= OnMessage;
            this._webSocket = null;
            token = default;
            requestKey = default;
        }

        private void OnMessage(object sender, MessageEventArgs e)
        {
            UnityEngine.Debug.Log($"OnMessage : {e.Data}");
        }

        private void OnError(object sender, ErrorEventArgs e)
        {
            UnityEngine.Debug.Log($"OnError : {e.Message}");
        }

        private void OnOpen(object sender, EventArgs e)
        {
            Debug.Log("token is " + this.token);
            this._webSocket.Send($"{{\n\t\"requestKey\": \"{this.requestKey}\",\n\t\"token\": \"{this.token}\"\n}}");
            UnityEngine.Debug.Log($"OnOpen : {e}");
        }

        private void OnClose(object sender, CloseEventArgs e)
        {
            UnityEngine.Debug.Log($"OnClose : {e.Code}");
        }
    }
}