using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Sockets;
using System.Text;
using System.Threading.Tasks;

namespace SocketService
{
    /// <summary>
    /// 接收消息
    /// </summary>
    public class ClientState
    {
        public Socket clientSocket = null;
        public const int bufsize = 16;
        public byte[] buffer = new byte[bufsize];
        public StringBuilder str = new StringBuilder();
    }

    /// <summary>
    /// 显示客户端IP 端口
    /// </summary>
    public class ClientClass
    {
        public string IP { get; set; }
        public string Port { get; set; }
    }

    /// <summary>
    /// 0-3 标识码 4-7 总长度 8-11 内容长度 12-15补0 16开始为内容
    /// </summary>
    public class SendSocket
    {
        /// <summary>
        /// 头 标识8888
        /// </summary>
        byte[] Header = new byte[4] { 0x08, 0x08, 0x08, 0x08 };

        /// <summary>
        /// 文本消息
        /// </summary>
        public string Message;

        /// <summary>
        /// 是否发送震动
        /// </summary>
        public bool SendShake = false;

        /// <summary>
        /// 是否发送图片
        /// </summary>
        public bool SendImg = false;

        /// <summary>
        /// 图片名称
        /// </summary>
        public string ImgName;

        /// <summary>
        /// 图片数据
        /// </summary>
        public string ImgBase64;
        /// <summary>
        /// 组成特定格式的byte数据
        /// 12-15 为指定发送内容 1111(震动) 2222(图片数据)
        /// </summary>
        /// <param name="mes">文本消息</param>
        /// <param name="Shake">震动</param>
        /// <param name="Img">图片</param>
        /// <returns>特定格式的byte</returns>
        public byte[] ToArray()
        {
            if (SendImg)//是否发送图片
            {
                //组成XML接收 可以接收相关图片数据
                StringBuilder xmlResult = new StringBuilder("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
                xmlResult.Append("<ImgMessage>");
                xmlResult.AppendFormat("<ImgName>{0}</ImgName>", ImgName);
                xmlResult.AppendFormat("<ImgBase64>{0}</ImgBase64>", ImgBase64);
                xmlResult.Append("</ImgMessage>");
                Message = xmlResult.ToString();
            }

            byte[] byteData = Encoding.UTF8.GetBytes(Message);//内容
            int count = 16 + byteData.Length;//总长度
            byte[] SendBy = new byte[count];
            Array.Copy(Header, 0, SendBy, 0, Header.Length);//添加头

            byte[] CountBy = BitConverter.GetBytes(count);
            Array.Copy(CountBy, 0, SendBy, 4, CountBy.Length);//总长度

            byte[] ContentBy = BitConverter.GetBytes(byteData.Length);
            Array.Copy(ContentBy, 0, SendBy, 8, ContentBy.Length);//内容长度

            if (SendShake)//发动震动
            {
                var shakeBy = new byte[4] { 1, 1, 1, 1 };
                Array.Copy(shakeBy, 0, SendBy, 12, shakeBy.Length);//震动
            }

            if (SendImg)//发送图片
            {
                var imgBy = new byte[4] { 2, 2, 2, 2 };
                Array.Copy(imgBy, 0, SendBy, 12, imgBy.Length);//图片
            }

            Array.Copy(byteData, 0, SendBy, 16, byteData.Length);//内容
            return SendBy;
        }
    }
}

namespace SocketClient
{
    partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要修改
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.btn_StopSocket = new System.Windows.Forms.Button();
            this.txt_Monitor = new System.Windows.Forms.TextBox();
            this.label3 = new System.Windows.Forms.Label();
            this.btn_StartSocket = new System.Windows.Forms.Button();
            this.txt_port = new System.Windows.Forms.TextBox();
            this