private bool CommandHandler(Guid guid, int byteCount, byte[] buffer)
{
var data = Encoding.ASCII.GetString(buffer, 0, byteCount);
TcpClient client = null;
lock (lockObj) { client = clients[guid]; }
LogHelp.localEndpoint = tcpListener.LocalEndpoint;
LogHelp.remoteEndPoint = clients[guid].Client.RemoteEndPoint;
// If FE only show in DEBUG mode.
if (data.Contains("FE"))
{
LogHelp.LogRead(guid, data, LogHelp.LogLevel.debug);
}
else
{
LogHelp.LogRead(guid, data, LogHelp.LogLevel.info);
}
if (buffer[0].Equals(2)) // Byte0 = STX, start of Command
{
int pump = 0;
try { pump = Convert.ToInt16(data.Substring(2, 2)); } catch { }
switch (Convert.ToChar(buffer[1]))
{
/* STX B xx C ETX CD
* B - Message identifier
* xx- Pump No
* C - Cancel identifier
* Pump No = 1
* Sample command = STX B 01 C ETX CD
*
* STX B xx xxxxxxx ETX CD
* Finalize Command Character=B
* Pump #=XX (01 to 32)
* xxxxxxxx = EHM$VPL
*
* • Pump 1
*
* Sample Command = STX B 01 EHM$VPL ETX CD
*/
case 'B': //Pump Cancel or Finalize
if (data.Substring(4, 1) == "C") // Cancel Pump
{
ThisStation.SetStatus(pump, PumpStatusEnum.Idle);
}
else if (data.Substring(4, 7) == "EHM$VPL") // Get Finalization
{
if (ThisStation.Pumps[pump].PumpStatus.Equals(PumpStatusEnum.DispenseCompleted))
{
/* 01H2M1$0000000000V0000000000P002600L010000
* SendCMD(guid, $"07H2M0$0000002000V0000009217P002170L002000f");
* 07 H2 M0 $0000002000 V0000009217 P002170 L002000
* Pump=07
* Hose=2
* M=0 (flag?)
* Amount:00000020.00
* Volume:0000009.217
* PPU:002.170
* Limit:0020.00
* Final sales data for pump 7, Hose=2, Amt=20.00, Vol=9.217, PPU=2.170 (L=20.00)
*/
Pump.Pump Fpump = ThisStation.Pumps[pump];
decimal vol = Fpump.Volume; vol = vol.Equals(0) ? 1 : vol;
SendCMD(guid, $"{pump:00}" + // Pump
$"H{Fpump.Hose:0}" + //Hose
$"M{Fpump.Flag:0}" + //Flag
$"${Fpump.Amount * 100:0000000000}" + //amount * 100
$"V{Fpump.Volume * 1000:0000000000}" + //volume liter * 1000
$"P{(Fpump.Amount / (vol)) * 1000:000000}" + // price per unit * 1000
$"L{Fpump.Limit * 100:000000}" + // original limith * 100
$"");
ThisStation.SetStatus(pump, PumpStatusEnum.Idle);
}
}
break;
/*
* STX A Pump# Hose# Flag $$$$.$$ vvv.vvv ETX CD
* In the actual command, decimal points are implied only.
* Authorize Command Character=A
* Pump #=XX (01 to 32)
* Hose #=X (0 to 8, with 0 authorizing any hose — also see Multi-grade Lock Authorization which follows)
* Flag=X (Type of authorization — see Description)
* Dollar Limit Amount=$$$$.$$ (0000.01 to 9999.99)
* Volume Limit Amount=vvv.vvv (000.001 to 999.999)
*
* • Pump 1
* • Hose 1
* • $25.00
*
* Sample Command = STX A 0101002500000000 ETX CD
*/
case 'A': // Authorize
int hose = Convert.ToInt16(data.Substring(4, 1));
string flag = data.Substring(5, 1);
decimal dollarLimit = Convert.ToDecimal(data.Substring(6, 6).Insert(4, "."));
decimal volumeLimit = Convert.ToDecimal(data.Substring(12, 6).Insert(3, "."));
if (ThisStation.Pumps[pump].PumpStatus.Equals(PumpStatusEnum.Reserved))
{
Pump.Pump Npump = ThisStation.Pumps[pump];
Npump.Limit = dollarLimit;
Npump.Volume = volumeLimit;
Npump.Hose = hose;
Npump.Flag = flag;
if (ThisStation.Pumps.ContainsKey(pump))
{
ThisStation.Pumps.Remove(pump);
}
ThisStation.Pumps.Add(pump, Npump);
ThisStation.SetStatus(pump, PumpStatusEnum.Authorized);
}
break;
/*
* 1, Check current pump state which should be idle
* 2. If match, sending reserve message to ISIS by sending pumpId and ZapOrderId.
*
* STX M xx ETX CD
*
* M Reserve identifier
* xx Pump No
* Pump No = 1
*
* Sample command = STX M 01 ETX CD
* Failure command = STX M 01 1 ETX CD
*/
case 'M': // Reserve
if (ThisStation.Pumps[pump].PumpStatus.Equals(PumpStatusEnum.Idle))
{
ThisStation.SetStatus(pump, PumpStatusEnum.Reserved);
}
else
{
SendCMD(guid, $"M{pump:00}{0x01}");
LogHelp.LogWrite(guid, $"Pump #{pump:00}: is already reserved", LogHelp.LogLevel.debug);
}
break;
/*
* Request Pump Status
* Get Status Command Character=FE
*
* Sample Command = STX FE ETX CD
* Response Command = STX 28000000000000000000000000000000000000000000000000000000000000000 ETX CD
* (64 chars)
*/
case 'F': // Request Pump Status
if (data.Substring(1, 1) != "E")
{
//Do Timer tick here
//storyman.StoryHandler.TimerTick();
string PumpStatus = "";
foreach (KeyValuePair <int, Pump.Pump> item in ThisStation.Pumps)
{
if (!item.Key.Equals(0))
{
PumpStatus += item.Value.Status;
}
}
for (int i = ThisStation.Pumps.Count; i < 66; i++)
{
PumpStatus += 0x00; PumpStatus += 0x00;
}
PumpStatus = PumpStatus.Substring(0, 64);
SendCMD(guid, $"28{PumpStatus}");
}
break;
case 'G': // Get Status on pump
SendCMD(guid, $"G{pump:00}{ThisStation.Pumps[pump].Status}");
break;
case 'S': // Change Status on pump
string Status = data.Substring(4, 2);
ThisStation.SetStatusText(pump, Status);
break;
case 'V': // Change Volume on pump
decimal volume = Convert.ToDecimal(data.Substring(4, 6).Insert(3, "."));
ThisStation.SetVolume(pump, volume);
break;
case 'D': // Change Amount on pump
decimal Amount = Convert.ToDecimal(data.Substring(4, 6).Insert(3, "."));
ThisStation.SetAmount(pump, Amount);
break;
case 'I': // Pump Info
decimal vol1 = ThisStation.Pumps[pump].Volume; vol1 = vol1.Equals(0) ? 1 : vol1;
SendCMD(guid, $"I{pump:00}" + // Pump
$"S{ThisStation.Pumps[pump].Status}" +
$"H{ThisStation.Pumps[pump].Hose:0}" + //Hose
$"M{ThisStation.Pumps[pump].Flag:0}" + //Flag
$"${ThisStation.Pumps[pump].Amount * 100:0000000000}" + //amount * 100
$"V{ThisStation.Pumps[pump].Volume * 1000:0000000000}" + //volume liter * 1000
$"P{(ThisStation.Pumps[pump].Amount / (vol1)) * 1000:000000}" + // price per unit * 1000
$"L{ThisStation.Pumps[pump].Limit * 100:000000}" + // original limith * 100
$"");
break;
default:
SendCMD(guid, data);
break;
}
return(true);
}
else
{
return(false);
}
}