public async Task SetLightState(LightStateViewModel lightState)
{
var transition = GetLightSwitchTransition(lightState.State);
lightState.State = transition[0];
// trigger light changing on all clients to disable switch
_controlHub.Clients.All.SetLightState(lightState);
// save new state to db so new requests fetch updated state
var cancellationTokenSource = new CancellationTokenSource();
var cancellationToken = cancellationTokenSource.Token;
var saving = _lightSwitchDbService.SetLightState(lightState, cancellationToken);
// send request to set light
lightState.State = transition[1];
var transitionRequestSent = _queueService.SendLightState(lightState);
if (!transitionRequestSent)
{
// could not send transition request, rollback all actions
cancellationTokenSource.Cancel();
}
await saving;
}
public async Task <int> SetLightState(LightStateViewModel lightState, CancellationToken cancellationToken)
{
var switchedLight = await _context.Lights.FindAsync(lightState.LightId);
switchedLight.State = lightState.State;
return(await _context.SaveChangesAsync(cancellationToken));
}
public async Task SetLightState(LightStateViewModel lightState)
{
await _lightSwitchService.SetLightState(lightState);
}
public bool SendLightState(LightStateViewModel lightState)
{
var message = $"{(int) lightState.State}, {lightState.LightId}";
return(SendMessage(message));
}
