public MainPageViewModel(IFermentationControllerAPI fermApi, IScreen hostScreen)
{
var retry = Polly.Policy.Handle <WebException>().WaitAndRetryAsync(1, x => TimeSpan.FromSeconds(Math.Pow(2, x)));
HostScreen = hostScreen;
SetTimeToNow = ReactiveCommand.CreateAsyncTask(async _ => {
var secFromEpoch = DateTimeMixins.SecondsFromEpoch();
await retry.ExecuteAsync(() => fermApi.SetTime(secFromEpoch));
});
Echo = ReactiveCommand.CreateAsyncTask(async _ => {
var response = await retry.ExecuteAsync(() => fermApi.Echo(this.EchoText));
return(response);
});
Echo.ToProperty(this, vm => vm.EchoResponse, out _EchoResponse);
GetStatus = ReactiveCommand.CreateAsyncTask(async _ => {
string output = string.Empty;
var response = await retry.ExecuteAsync(fermApi.GetStatus);
var theData = Convert.FromBase64String(response);
using (var ms = new MemoryStream(theData))
{
var systemTime = ms.ReadUInt32();
var systemMode = ms.ReadByte();
var regMode = ms.ReadByte();
var probe0Assignment = ms.ReadByte();
var probe0Temp = ms.ReadUInt16();
var probe1Assignment = ms.ReadByte();
var probe1Temp = ms.ReadUInt16();
var heatRelayStatus = ms.ReadByte();
var coolRelayStatus = ms.ReadByte();
var runningProfile = ms.ReadString(64);
var profileStepIdx = ms.ReadUInt16();
var profileStepTemp = ms.ReadUInt16();
var profileStepTimeRemaining = ms.ReadUInt32();
var manualSetpointTemp = ms.ReadUInt16();
var profileStartTime = ms.ReadUInt32();
output += string.Format("System Time:{0}\n", DateTimeMixins.TimeFromEpoch(systemTime));
output += string.Format("System Mode:{0}\n", systemMode);
output += string.Format("Regulation Mode:{0}\n", regMode);
output += string.Format("Probe0 Assign:{0}\n", probe0Assignment);
output += string.Format("Probe0 Temp C:{0}\n", probe0Temp / 10.0);
output += string.Format("Probe1 Assign:{0}\n", probe1Assignment);
output += string.Format("Probe1 Temp C:{0}\n", probe1Temp / 10.0);
output += string.Format("Heat Relay Status:{0}\n", heatRelayStatus);
output += string.Format("Cool Relay Status:{0}\n", coolRelayStatus);
output += string.Format("Running Profile:{0}\n", runningProfile);
output += string.Format("Profile Step Index:{0}\n", profileStepIdx);
output += string.Format("Profile Step Temperature C:{0}\n", profileStepTemp / 10.0);
output += string.Format("Profile Step Time Remaining:{0}\n", profileStepTimeRemaining);
output += string.Format("Manual Setpoint Temp C:{0}\n", manualSetpointTemp / 10.0);
output += string.Format("Profile Start Time:{0}\n", DateTimeMixins.TimeFromEpoch(profileStartTime));
}
return(output);
});
GetStatus.ThrownExceptions
.Select(x => new UserError("Status cannot be retrieved", "Check your connected to the TEMPERATURE wifi"))
.SelectMany(UserError.Throw);
GetStatus.ToProperty(this, vm => vm.StatusResponse, out _StatusResponse);
NavigateToCreateProfilePage = ReactiveCommand.Create();
NavigateToCreateProfilePage
.Subscribe(_ => HostScreen.Router.Navigate.Execute(new CreateProfileViewModel(hostScreen, fermApi)));
NavigateToPreferencesPage = ReactiveCommand.Create();
NavigateToPreferencesPage
.Subscribe(_ => HostScreen.Router.Navigate.Execute(new PreferencesPageViewModel(hostScreen, new UserSettings())));
}
