using Microsoft.Extensions.Logging;
using Newtonsoft.Json.Linq;
using Newtonsoft.Json;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using WebSocket4Net;
using CoreAgent.ProtocolClient.Models;

namespace CoreAgent.ProtocolClient.Managers.WebSocketMgr
{
    public partial class WebSocketMessageManager
    {
        #region 公共方法

        /// <summary>
        /// 连接到WebSocket服务器
        /// </summary>
        public void Connect(string url, bool ssl = false)
        {
            ThrowIfDisposed();

            if (string.IsNullOrEmpty(url))
                throw new ArgumentException("URL不能为空", nameof(url));

            try
            {
                _logger.LogInformation($"[{_clientName}] 尝试连接: {url}");

                // 构建WebSocket URL
                var fullUrl = (ssl ? "wss://" : "ws://") + url;

                // 创建WebSocket实例
                _webSocket = new WebSocket(fullUrl);
                _webSocket.EnableAutoSendPing = false;

                // 绑定事件处理器
                _webSocket.Opened += OnSocketOpened!;
                _webSocket.Closed += OnSocketClosed!;
                _webSocket.MessageReceived += OnSocketMessageReceived!;
                _webSocket.Error += OnSocketError!;

                // 打开连接
                _webSocket.Open();
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, $"[{_clientName}] 连接异常: {ex.Message}");
                ConnectionError?.Invoke(this, $"无法连接到 {url}: {ex.Message}");
                throw;
            }
        }

        /// <summary>
        /// 断开WebSocket连接
        /// </summary>
        public void Disconnect()
        {
            ThrowIfDisposed();

            try
            {
                _logger.LogInformation($"[{_clientName}] 断开连接");

                // 停止消息发送定时器
                StopMessageDeferTimer();

                // 清空消息队列
                ClearMessageQueue();

                // 关闭WebSocket连接
                if (_webSocket != null)
                {
                    _webSocket.Close();
                    _webSocket = null;
                }
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, $"[{_clientName}] 断开连接异常: {ex.Message}");
            }
        }

        /// <summary>
        /// 发送消息
        /// </summary>
        public long SendMessage(JObject message, Action<JObject>? callback = null, bool errorHandler = false)
        {
            ThrowIfDisposed();

            if (message == null)
                throw new ArgumentNullException(nameof(message));

            // 检查连接状态
            if (!IsConnected)
            {
                _logger.LogWarning($"[{_clientName}] WebSocket未连接，无法发送消息");
                return -1L;
            }

            // 使用MessageIdManager生成ID
            var messageId = _messageIdManager.GenerateGeneralMessageId(message, callback, errorHandler);

            // 添加到消息队列
            _messageFifo.Add(message);

            // 启动消息发送定时器
            StartMessageDeferTimer();

            _logger.LogDebug($"[{_clientName}] 消息已加入队列: message_id={messageId}");
            return messageId;
        }

        /// <summary>
        /// 发送日志获取消息
        /// </summary>
        public long SendLogGetMessage(JObject message, Action<JObject> callback)
        {
            ThrowIfDisposed();

            if (message == null)
                throw new ArgumentNullException(nameof(message));

            if (callback == null)
                throw new ArgumentNullException(nameof(callback));

            // 检查连接状态
            if (!IsConnected)
            {
                _logger.LogWarning($"[{_clientName}] WebSocket未连接，无法发送日志获取消息");
                return -1L;
            }

            // 使用MessageIdManager生成LogGet ID
            var messageId = _messageIdManager.GenerateLogGetMessageId(message, callback);

            // 将消息加入队列并启动定时器
            _messageFifo.Add(message);
            StartMessageDeferTimer();

            _logger.LogDebug($"[{_clientName}] 日志获取消息已加入队列: message_id={messageId}");
            return messageId;
        }

        /// <summary>
        /// 处理接收到的消息
        /// </summary>
        public bool HandleReceivedMessage(JObject message, Action<string>? errorHandler = null)
        {
            ThrowIfDisposed();

            if (message == null)
                return false;

            try
            {
                // 使用MessageIdManager处理消息响应
                var handled = _messageIdManager.HandleMessageResponse(message, errorHandler);

                if (handled)
                {
                    _logger.LogDebug($"[{_clientName}] 消息已处理: message_id={message["message_id"]}");
                    return true;
                }

                // 处理特定消息类型
                var name = message["message"]?.ToString();
                if (!string.IsNullOrEmpty(name))
                {
                    _logger.LogDebug($"[{_clientName}] 未处理的特定消息类型: {name}");
                }

                return false;
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, $"[{_clientName}] 处理消息异常: {ex.Message}");
                errorHandler?.Invoke($"消息处理错误: {ex.Message}");
                return false;
            }
        }

        /// <summary>
        /// 设置消息处理器
        /// </summary>
        public void SetMessageHandler(string[] names, MessageHandler handler)
        {
            ThrowIfDisposed();
            _messageIdManager.SetMessageHandler(names, handler);
        }

        /// <summary>
        /// 取消设置消息处理器
        /// </summary>
        public void UnsetMessageHandler(string[] names)
        {
            ThrowIfDisposed();
            _messageIdManager.UnsetMessageHandler(names);
        }

        /// <summary>
        /// 检查是否为当前日志获取消息
        /// </summary>
        public bool IsCurrentLogGetMessage(long messageId)
        {
            ThrowIfDisposed();
            return _messageIdManager.IsCurrentLogGetMessage(messageId);
        }

        /// <summary>
        /// 重置日志获取ID
        /// </summary>
        public void ResetLogGetId()
        {
            ThrowIfDisposed();
            _messageIdManager.ResetLogGetId();
        }

        /// <summary>
        /// 清理过期的消息处理器
        /// </summary>
        public void CleanupExpiredHandlers(int maxAge = 30000)
        {
            ThrowIfDisposed();
            _messageIdManager.CleanupExpiredHandlers(maxAge);
        }

        #endregion
    }
}