/// </summary>
        HarewareError = 0x2,
        /// <summary>
        /// 遇匪
        /// </summary>
        Robber = 0x10,
        /// <summary>
        /// 自然災害
        /// </summary>
        NaturalDisaster = 0x20
    }
    /// <summary>
    /// 報警報文
    /// </summary>
    public class GPAI
    {
        #region 報警報文格式
        //$GPAI,<1>,<2>,<3>,<4>,<5>
        //<1>UTC時間:時分秒(hhmmss)
        //<2>機器編號
        //<3>1=資源缺乏｜2=硬件故障｜4=遇匪｜8=撞車｜16=自然災難
        #endregion

        #region Private
        DateTime utcTime;
        string machineName;
        AlarmReason alarmReason = AlarmReason.None;
        #endregion

        #region Constrution
        public GPAI(string datagram)
        {
            string[] splitStr = datagram.Split(@",".ToCharArray());
            utcTime = DateTime.Parse(splitStr[1]);
            machineName = splitStr[2];
            alarmReason = (AlarmReason)byte.Parse(splitStr[3]);
        }
        #endregion

        #region Attribute
        /// <summary>
        /// 報文產生時間
        /// </summary>
        public DateTime UTCTime
        {
            get { return utcTime; }
            set { utcTime = value; }
        }
        /// <summary>
        /// 機器名或叫機器編號
        /// </summary>
        public string MachineName
        {
            set { machineName = value; }
            get { return machineName; }
        }
        /// <summary>
        /// 報警原因
        /// </summary>
        public AlarmReason AlarmReason
        {
            set { alarmReason = value; }
            get { return alarmReason; }
        }
        #endregion

        #region Method
        /// <summary>
        /// 輸入傳輸報文
        /// </summary>
        /// <returns></returns>
        public override string ToString()
        {
            utcTime = new DateTime();
            return @"$GPAI,"
            + utcTime.ToString() + ","
            + machineName + ","
            + alarmReason.ToString()
            + "\n";
        }

        #endregion
    }
    /// <summary>
    /// 請求狀態報文
    /// </summary>
    public class GPRS
    {
        #region 請求狀態信息報文格式
        //主機->從機：
        //請求狀態信息
        //$GPRSI,<1>
        //<1>UTC時間:時分秒(hhmmss)
        #endregion

        #region Private
        DateTime utcTime;
        #endregion

        #region Constrution
        public GPRS(string datagram)
        {
            string[] splitStr = datagram.Split(@",".ToCharArray());
            utcTime = DateTime.Parse(splitStr[1]);
        }
        #endregion

        #region Attribute
        /// <summary>
        /// 報文產生時間
        /// </summary>
        DateTime UTCTime
        {
            set { utcTime = value; }
            get { return utcTime; }
        }
        #endregion

        #region Method
        /// <summary>
        /// 輸入報文字符串
        /// </summary>
        /// <returns></returns>
        public override string ToString()
        {
            utcTime = new DateTime();
            return @"$GPRSI,"
            + utcTime.ToString()
            + "\n";
        }
        #endregion
    }
    /// <summary>
    /// GPS命令
    /// </summary>
    public enum GPCommand : byte
    {
        /// <summary>
        /// 無
        /// </summary>
        None = 0x00,
        /// <summary>
        /// 斷油
        /// </summary>
        StopOiling = 0x1,
        /// <summary>
        /// 斷水
        /// </summary>
        StopWater = 0x2,
        /// <summary>
        /// 熄火,關引擎
        /// </summary>
        CloseEngine = 0x4,
        /// <summary>
        /// 鎖車匙
        /// </summary>
        Lock = 0x10,
        /// <summary>
        /// 鎖檔
        /// </summary>
        LockShift = 0x20
    }
    /// <summary>
    /// 命令報文
    /// </summary>
    public class GPCD
    {
        #region 命令報文格式
        //$GPCP,<1>,<2>
        //類型：1B　固定為00H
        //<1>UTC時間:時分秒(hhmmss)
        //<2>1=斷油｜2=斷水｜4=關引擎｜8=鎖車匙｜16=鎖檔
        #endregion

        #region Private
        DateTime utcTime;
        GPCommand gpCommand = GPCommand.None;
        #endregion

        #region Constrution
        public GPCD(string datagram)
        {
            string[] splitStr = datagram.Split(@",".ToCharArray());
            utcTime = DateTime.Parse(splitStr[1]);
            gpCommand = (GPCommand)byte.Parse(splitStr[2]);
        }
        #endregion

        #region Attribute
        /// <summary>
        /// 報文產生時間
        /// </summary>
        public DateTime UTCTime
        {
            set { utcTime = value; }
            get { return utcTime; }
        }
        /// <summary>
        /// 命令內容
        /// </summary>
        public GPCommand GPCommand
        {
            set { gpCommand = value; }
            get { return gpCommand; }
        }
        #endregion

        #region Method
        public override string ToString()
        {
            utcTime = new DateTime();
            return @"$GDCP,"
            + utcTime.ToString() + ","
            + gpCommand.ToString()
            + "\n";
        }
        #endregion
    }

    /// <summary>
    /// 報文類型
    /// </summary>
    public enum PackageType : byte
    {
        /// <summary>
        /// 非定義類型
        /// </summary>
        Undefine = 0xFF,
        /// <summary>
        /// 定位報文
        /// </summary>
        GPPI = 0x00,
        /// <summary>
        /// 狀態報文
        /// </summary>
        GPSI = 0x01,
        /// <summary>
        /// 報警報文
        /// </summary>
        GPAI = 0x02,
        /// <summary>
        /// 請求狀態報文報文
        /// </summary>
        GPRS = 0x3,
        /// <summary>
        /// 命令報文
        /// </summary>
        GPCD = 0x4
    }
    public class PackageFactory
    {
        /// <summary>
        /// 獲得報文的類型
        /// </summary>
        /// <param name="datagram"></param>
        /// <returns></returns>
        public static PackageType GetPackageType(string datagram)
        {
            string[] TypePreString = { "$GPPI", "$GPSI", "$GPAI", "$GPRS", "$GPCD" };
            for (int i = 0; i < TypePreString.Length; i++)
            {
                if (datagram.StartsWith(TypePreString[i]))
                    return (PackageType)i;  
            }
            return PackageType.Undefine;
        }
        /// <summary>
        /// 通過數據報字符串構造實例
        /// </summary>
        /// <param name="datagram">數據報字符串</param>
        /// <returns></returns>
        public static GPPI CreateGPPI(string datagram)
        {
            return new GPPI(datagram);
        }
        /// <summary>
        /// 通過數據報字符串構造實例
        /// </summary>
        /// <param name="datagram">數據報字符串</param>
        /// <returns></returns>
        public static GPSI CreateGPSI(string datagram)
        {
            return new GPSI(datagram);
        }
        /// <summary>
        /// 通過數據報字符串構造實例
        /// </summary>
        /// <param name="datagram">數據報字符串</param>
        /// <returns></returns>
        public static GPAI CreateGPAI(string datagram)
        {
            return new GPAI(datagram);
        }
        /// <summary>
        /// 通過數據報字符串構造實例
        /// </summary>
        /// <param name="datagram">數據報字符串</param>
        /// <returns></returns>
        public static GPRS CreateGPRS(string datagram)
        {
            return new GPRS(datagram);
        }
        /// <summary>
        /// 通過數據報字符串構造實例
        /// </summary>
        /// <param name="datagram">數據報字符串</param>
        /// <returns></returns>
        public static GPCD CreateGPCD(string datagram)
        {
            return new GPCD(datagram);
        }
    }
}