using DocumentFormat.OpenXml.Spreadsheet;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace MECF.Framework.Common.Net
{
    public class JetMessageTcpClient<TNetMessage,T> : JetTcpClient where TNetMessage : INetMessage<T>,new () where T:new ()
    {
        #region 内部变量
        private object _locker = new object();
        private int _lockTimeout = 1000;
        private TNetMessage _netMessage;
        #endregion
        /// <summary>
        /// 构造函数
        /// </summary>
        /// <param name="ip"></param>
        /// <param name="port"></param>
        public JetMessageTcpClient(string ip, int port) : base(ip, port)
        {
            _netMessage = new TNetMessage();
        }

        /// <summary>
        /// 申请数据
        /// </summary>
        /// <typeparam name="T">申请指令类型</typeparam>
        /// <param name="data">指令对象</param>
        /// <returns>返回数据对象</returns>
        public NetResult<T> ApplyData(T data)
        {
            if(Monitor.TryEnter(_locker,_lockTimeout))
            {
                NetResult result = ReadFromServer(data);
                if(!result.IsSuccess)
                {
                    Monitor.Exit(_locker);
                    return NetResult.CreateFailedResult<T>(result.ErrorCode, result.Message);
                }
                Monitor.Exit(_locker);
                return NetResult.CreateSuccessResult<T>(_netMessage.Decode());
            }
            else
            {
                return NetResult.CreateFailedResult<T>(NetErrorCode.GetLockTimeout);
            }
        }
        /// <summary>
        /// 设置数据
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="data"></param>
        /// <returns></returns>
        public NetResult SetData(T data)
        {
            if (Monitor.TryEnter(_locker, _lockTimeout))
            {
                NetResult result = ReadFromServer(data);
                if (!result.IsSuccess)
                {
                    Monitor.Exit(_locker);
                    return NetResult.CreateFailedResult(result.ErrorCode, result.Message);
                }
                bool confirmResult = _netMessage.ConfirmResponseResult();
                if(!confirmResult)
                {
                    Monitor.Exit(_locker);
                    return NetResult.CreateFailedResult(_netMessage.ErrorCode, _netMessage.ErrorMsg);
                }
                Monitor.Exit(_locker);
                return NetResult.CreateSuccessResult();
            }
            else
            {
                return NetResult.CreateFailedResult(NetErrorCode.GetLockTimeout);
            }
        }
        /// <summary>
        /// 从服务端读取数据
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="data"></param>
        /// <returns></returns>
        private NetResult ReadFromServer(T data)
        {
            byte[] buffer = _netMessage.Code(data);
            NetResult sendResult = Send(buffer);
            if (!sendResult.IsSuccess)
            {
                return NetResult.CreateFailedResult(sendResult.ErrorCode, sendResult.Message);
            }
            _netMessage.SendBytes = buffer;
            NetResult<byte[]> headerResult = Receive(_netMessage.ProtocolHeadBytesLength);
            if (!headerResult.IsSuccess)
            {
                return NetResult.CreateFailedResult(headerResult.ErrorCode, headerResult.Message);
            }
            _netMessage.HeadBytes = headerResult.Data;
            if (!_netMessage.CheckHeadBytesLegal())
            {
                return NetResult.CreateFailedResult(NetErrorCode.InvalidHeader);
            }
            int contentLength = _netMessage.GetContentLengthByHeadBytes();
            if (contentLength !=0)
            {
                NetResult<byte[]> contentResult = Receive(contentLength);
                if (!contentResult.IsSuccess)
                {
                    return NetResult.CreateFailedResult(contentResult.ErrorCode, contentResult.Message);
                }
                _netMessage.ContentBytes = contentResult.Data;
                bool dataValid = _netMessage.CheckDataLegal();
                if (!dataValid)
                {
                    return NetResult.CreateFailedResult(_netMessage.ErrorCode, _netMessage.ErrorMsg);
                }
            }
            return NetResult.CreateSuccessResult();
        }
    }
}