using System;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;

namespace MonitorSystem.BasicClass
{
	/// <summary>
	/// SocketPackage 的摘要說明。
	/// </summary>
	[Serializable]
	public class SocketPackageBase
	{
		#region 包頭信息
		//protected string m_HeadFlag;
		protected char[] m_HeadFlag = new char[6];
		protected int m_ContentLength;
		protected uint m_CommandID;
		//protected string m_PacketType;
		protected char m_PacketType;
		protected int m_Version;
		protected int m_Encrypt;
		//protected string m_Reserve;
		protected char[] m_Reserve = new char[9];

		public char[] HeadFlag
		{
			get{return m_HeadFlag;}
			set{m_HeadFlag = value;}
		}
		public int ContentLength
		{
			get{return m_ContentLength;}
			set{m_ContentLength = value;}
		}
		public uint CommandID
		{
			get{return m_CommandID;}
			set{m_CommandID = value;}
		}
		public char PacketType
		{
			get{return m_PacketType;}
			set{m_PacketType = value;}
		}
		public int Version
		{
			get{return m_Version;}
			set{m_Version = value;}
		}
		public int Encrypt
		{
			get{return m_Encrypt;}
			set{m_Encrypt = value;}
		}
		public char[] Reserve
		{
			get{return m_Reserve;}
			set{m_Reserve = value;}
		}

		#endregion

		public SocketPackageBase()
		{
			//
			// TODO: 在此處添加構造函數邏輯
			//
		}

		/// <summary>
		/// 打包
		/// </summary>
		/// <returns></returns>
		public byte[] EncodeSocketPackage()
		{
			byte[] buffer;
			IFormatter formatter = new BinaryFormatter();
			MemoryStream stream = new MemoryStream();

			try
			{
				buffer=new Byte[1024];
				//pack_header to byte[]
				formatter.Serialize(stream, this);
				buffer = stream.ToArray();
				stream.Close();
			}
			catch(Exception ex)
			{
				string msg = String.Format("信息序列化錯誤，原因：{0}",ex.Message);
				throw new Exception(msg);
			}

			return buffer;
		}

		/// <summary>
		/// 解包
		/// </summary>
		/// <param name="package"></param>
		/// <returns></returns>
		public virtual int DecodeSocketPackage(byte[] package)
		{
			return -1;
		}

	}

}