using System;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;

namespace Curtain.Net.Sockets.PLC.Model.Melsec
{
    /// <summary>
    /// SimpleSocketClientModel ASCII码
    /// </summary>
    public class SimpleSocketClientModel : ClientModel
    {
        #region client

        /// <summary>
        /// 接收超时时间（毫秒）
        /// </summary>
        public override int ReceiveTimeout => 5000;
        /// <summary>
        /// 发送超时时间（毫秒）
        /// </summary>
        public override int SendTimeout => 3000;

        /// <summary>
        /// 响应报文-头长度
        /// </summary>
        public override int HeadLength => 4;

        /// <summary>
        /// 根据响应报文-头，计算响应报文-文本长度
        /// </summary>
        /// <param name="m">报文</param>
        /// <returns>响应报文-文本长度</returns>
        public override int GetContentLength(PLCMessage m)
        {
            return 0;
        }

        /// <summary>
        /// 验证响应报文-头
        /// </summary>
        /// <param name="m">报文</param>
        /// <returns>是否通过</returns>
        public override bool CheckHead(PLCMessage m)
        {
            if (m == null || m.HeadBytes == null || m.HeadBytes.Length != HeadLength)
            {
                return false;
            }
            return true;
        }

        /// <summary>
        /// 命令报文转换为发送字节
        /// </summary>
        /// <param name="command">命令报文</param>
        /// <returns>发送字节</returns>
        public override byte[] ToSendFromCommand(string command)
        {
            if (string.IsNullOrEmpty(command))
            {
                return null;
            }
            return Encoding.ASCII.GetBytes(command);
        }

        /// <summary>
        /// 接收字节转换为响应报文
        /// </summary>
        /// <param name="receive">接收字节</param>
        /// <returns>响应报文</returns>
        public override string ToResponseFromReceive(byte[] receive)
        {
            if (receive == null || receive.Length == 0)
            {
                return null;
            }
            return Encoding.ASCII.GetString(receive);
        }
        #endregion

        #region Value
        #endregion

        #region SendMessage
        /// <summary>
        /// 获取发送命令报文
        /// </summary>
        /// <param name="value"></param>
        /// <returns></returns>
        public override PLCMessage<string> GetSendMessage(string value)
        {
            PLCMessage<string> plc_m = new PLCMessage<string>(PLCMessageType.Send)
            {
                Value = value,
                Length = 1,
            };

            plc_m.Command = "@" + value + "$";
            plc_m.CommandBytes = ToSendFromCommand(value);
            return plc_m;
        }
        #endregion
    }
}