public void BeginAutoTopOff(AutoTopOffRequest atoRequest)
{
if (Status.PumpRunning)
{
throw new Exception($"ATO is currently running...");
}
if (CancelToken != null && !CancelToken.IsCancellationRequested)
{
_logger.LogInformation("Canceled by new ATO process"); //todo remove all these cancel logs when we solve the issue of random ato cancels
CancelToken.Cancel();
}
var pumpRelaySensor = GetPumpRelayPin();
var floatSwitchSensor = GetFloatSensorPin();
if (pumpRelaySensor == null || floatSwitchSensor == null)
{
throw new Exception($"Invalid ATO pins specified (Pump: {pumpRelaySensor} Sensor: {floatSwitchSensor})");
}
if (atoRequest.Runtime > 60)
{
throw new Exception($"ATO max runtime is larger than maximum allowed (Runtime: {atoRequest.Runtime} Maximum: 60)");
}
var currentSensorValue = _gpioService.GetPinValue(floatSwitchSensor);
if (currentSensorValue == GpioPinValue.Low)
{
throw new Exception($"ATO sensor is currently reading maximum water level");
}
_logger.LogInformation("[ATOService] Beginning ATO...");
var maxPumpRuntime = atoRequest.Runtime * 1000 * 60;
_gpioService.SetPinValue(pumpRelaySensor, PinValue.High);
//Next run time
var device = _aquariumAuthService.GetAquarium().Device;
var task = device.ScheduleAssignments.Select(assignment =>
assignment.Schedule.Tasks.Where(t => t.TaskId == Models.ScheduleTaskTypes.StartATO).FirstOrDefault()
).FirstOrDefault();
DateTime?nextRunTime = null;
if (task != null)
{
nextRunTime = task.StartTime.ToUniversalTime();
}
var startTime = DateTime.Now.ToUniversalTime();
Status = new ATOStatus
{
StartTime = startTime,
EstimatedEndTime = startTime.AddMilliseconds(maxPumpRuntime),
UpdatedAt = startTime,
MaxRuntime = atoRequest.Runtime,
RunIndefinitely = atoRequest.RunIndefinitely,
PumpRunning = true,
Enabled = true,
PumpRelaySensor = pumpRelaySensor,
FloatSensor = floatSwitchSensor,
DeviceId = device.Id,
NextRunTime = nextRunTime,
FloatSensorValue = currentSensorValue
};
DispatchStatus().Wait(); //.ConfigureAwait(false);
//Apply a max drain time
CancelToken = new CancellationTokenSource();
CancellationToken ct = CancelToken.Token;
var statusId = Status.Id;
Task.Run(() =>
{
var t = TimeSpan.FromMilliseconds(maxPumpRuntime);
string time = string.Format("{0:D2}h:{1:D2}m", t.Hours, t.Minutes);
_logger.LogInformation($"[ATOService] Running (Max run time: {time})");
Thread.Sleep(maxPumpRuntime);
//ct.ThrowIfCancellationRequested();
if (ct.IsCancellationRequested)
{
if (statusId != Status.Id)
{
_logger.LogError("Attempted to cancel water change. The Status IDs of the water changes do not match!");
//so this definitely happens occasionally
return;
}
StopAutoTopOff(AutoTopOffStopReason.Canceled);
//_gpioService.SetPinValue(pumpRelaySensor.Pin, PinValue.Low); //maybe enable this in case we run into pin issues
return;
}
if (Status.PumpRunning)
{
_logger.LogInformation($"[ATOService] Reached maximum run time of {Status.MaxRuntime} minutes.");
StopAutoTopOff(AutoTopOffStopReason.MaximumRuntimeReached);
}
}).ConfigureAwait(false); //Fire and forget
}
