Task <IPremiseObject> IPremiseObject.SetClassAsync(IPremiseObject classObject)
{
var future = new SetClassFuture(_objectId, (classObject as PremiseObject)?._objectId);
_client.Send(future, out Task <IPremiseObject> task);
return(task);
}
Task <IPremiseObject> IPremiseObject.CreateObjectAsync(IPremiseObject type, string name)
{
var future = new CreateObjectFuture(_objectId, (type as PremiseObject)?._objectId, name);
_client.Send(future, out Task <IPremiseObject> task);
return(task);
}
Task <string> IPremiseObject.GetPropertyAsTextAsync(IPremiseObject property)
{
var future = new GetPropertyAsTextFuture(_objectId, (property as PremiseObject)?._objectId);
_client.Send(future, out Task <string> task);
return(task);
}
Task <bool> IPremiseObject.IsOfTypeAsync(IPremiseObject typeId)
{
var future = new IsOfTypeFuture(_objectId, (typeId as PremiseObject)?._objectId);
_client.Send(future, out Task <bool> task);
return(task);
}
public void ProcessControllerDirective()
{
IPremiseObject switcher = GetSwitcherZone();
if (switcher == null || !switcher.IsValidObject())
{
string name = Endpoint.GetPathAsync().GetAwaiter().GetResult();
ReportError(AlexaErrorTypes.NO_SUCH_ENDPOINT, $"No switcher child object in MediaZone at {name}.");
return;
}
Dictionary <string, IPremiseObject> inputs = GetAllInputs(switcher);
if (inputs.ContainsKey(Request.directive.payload.input.ToUpper()))
{
// switch inputs
IPremiseObject newInput = inputs[Request.directive.payload.input];
string newInputId = newInput.GetObjectIDAsync().GetAwaiter().GetResult();
switcher.SetValueAsync("CurrentSource", newInputId).GetAwaiter().GetResult();
Response.Event.header.name = "Response";
Response.context.properties.AddRange(PropertyHelpers.FindRelatedProperties(Endpoint, ""));
}
else
{
ReportError(AlexaErrorTypes.INVALID_VALUE, $"Input {Request.directive.payload.input} not found!");
}
}
public List <AlexaProperty> FindRelatedProperties(IPremiseObject endpoint, string currentController)
{
List <AlexaProperty> relatedProperties = new List <AlexaProperty>();
DiscoveryEndpoint discoveryEndpoint = PremiseServer.GetDiscoveryEndpointAsync(endpoint).GetAwaiter().GetResult();
if (discoveryEndpoint == null)
{
return(relatedProperties);
}
foreach (Capability capability in discoveryEndpoint.capabilities)
{
if (capability.@interface == currentController)
{
continue;
}
if (PremiseServer.Controllers.ContainsKey(capability.@interface))
{
IAlexaController controller = PremiseServer.Controllers[capability.@interface];
controller.SetEndpoint(endpoint);
relatedProperties.AddRange(controller.GetPropertyStates());
}
}
return(relatedProperties);
}
public static void ShutdownMonitor()
{
WriteToWindowsApplicationEventLog(EventLogEntryType.Information, "Shutdown monitor started.", 3);
while (!BackgroundTaskManager.Shutdown.IsCancellationRequested)
{
Thread.Sleep(2000);
}
WriteToWindowsApplicationEventLog(EventLogEntryType.Information, "Shutdown requested by IIS application pool.", 6);
UnsubscribeAllAsync().GetAwaiter().GetResult();
_asyncEventSubscription?.UnsubscribeAsync().GetAwaiter().GetResult();
_asyncEventSubscription = null;
WriteToWindowsApplicationEventLog(EventLogEntryType.Information, "Removed premise async subscriptions.", 7);
using (endpointsLock.Lock())
{
endpoints?.Clear();
}
WriteToWindowsApplicationEventLog(EventLogEntryType.Information, "Disconnect from premise.", 8);
_sysClient.Disconnect();
using (HomeObjectLock.Lock())
{
_homeObject = null;
}
WriteToWindowsApplicationEventLog(EventLogEntryType.Information, "Shutdown complete.", 9);
BackgroundTaskManager.Shutdown.ThrowIfCancellationRequested();
}
private string GetInputName(IPremiseObject input)
{
string inputName = input.GetValueAsync <string>("AlexaInputName").GetAwaiter().GetResult();
if (string.IsNullOrEmpty(inputName))
{
// if the AlexaInputName isn't set then use the object name.
inputName = input.GetNameAsync().GetAwaiter().GetResult();
}
return(inputName.ToUpper());
}
private IPremiseObject GetSwitcherZone()
{
IPremiseObject switcher = null;
foreach (IPremiseObject child in Endpoint.GetChildrenAsync().GetAwaiter().GetResult())
{
// there should be an object of type matrix switcher zone as a child
if (child.IsOfTypeAsync(PremiseServer.AlexaMatrixSwitcherZone).GetAwaiter().GetResult())
{
switcher = child;
break;
}
}
return(switcher);
}
private static async Task SubscribeAllAsync()
{
using (subscriptionsLock.Lock())
{
if (endpoints.Count == 0)
{
await GetEndpointsAsync().ConfigureAwait(false);
}
if (subscriptions.Count != 0)
{
await UnsubscribeAllAsync().ConfigureAwait(false);
}
Action <dynamic> callback = AlexaPropertyChanged;
using (endpointsLock.Lock())
{
foreach (DiscoveryEndpoint discoveryEndpoint in endpoints)
{
Guid premiseId = new Guid(discoveryEndpoint.endpointId);
IPremiseObject endpoint = await HomeObject.GetObjectAsync(premiseId.ToString("B")).ConfigureAwait(false);
if (!endpoint.IsValidObject())
{
await NotifyErrorAsync(EventLogEntryType.Warning, $"Cannot find object {discoveryEndpoint.friendlyName} ({premiseId.ToString()})to subscribe on premise server.", 250).ConfigureAwait(false);
continue;
}
// use reflection to instantiate all device type controllers
var interfaceType = typeof(IAlexaDeviceType);
var all = AppDomain.CurrentDomain.GetAssemblies()
.SelectMany(x => x.GetTypes())
.Where(x => interfaceType.IsAssignableFrom(x) && !x.IsInterface && !x.IsAbstract)
.Select(Activator.CreateInstance);
foreach (IAlexaDeviceType deviceType in all)
{
Dictionary <string, IPremiseSubscription> subs =
deviceType.SubscribeToSupportedProperties(endpoint, discoveryEndpoint, callback);
foreach (string key in subs.Keys)
{
subscriptions.Add(key, subs[key]);
}
}
}
}
}
}
public List <AlexaProperty> GetPropertyStates(IPremiseObject premiseObject)
{
Endpoint = premiseObject;
List <AlexaProperty> properties = new List <AlexaProperty>();
//double volume = this.endpoint.GetValue<double>(_premiseProperties[0]).GetAwaiter().GetResult();
//AlexaProperty volumeProperty = new AlexaProperty
//{
// @namespace = _namespace,
// name = _alexaProperties[0],
// value = (int)((volume * 100)).LimitToRange(0, 100),
// timeOfSample = UtcTimeStamp()
//};
//properties.Add(volumeProperty);
return(properties);
}
private string GetCurrentInput()
{
IPremiseObject switcher = GetSwitcherZone();
if (!switcher.IsValidObject())
{
return("");
}
IPremiseObject currentInput = switcher.GetRefValueAsync("CurrentSource").GetAwaiter().GetResult();
if (!currentInput.IsValidObject())
{
return("");
}
return(GetInputName(currentInput));
}
public static async Task <DiscoveryEndpoint> GetDiscoveryEndpointAsync(IPremiseObject endpoint)
{
DiscoveryEndpoint discoveryEndpoint;
try
{
string json = await endpoint.GetValueAsync("discoveryJson").ConfigureAwait(false);
discoveryEndpoint = JsonConvert.DeserializeObject <DiscoveryEndpoint>(json, new JsonSerializerSettings
{
NullValueHandling = NullValueHandling.Ignore
});
}
catch
{
discoveryEndpoint = null;
}
return(discoveryEndpoint);
}
private Dictionary <string, IPremiseObject> GetAllInputs(IPremiseObject switcher)
{
Dictionary <string, IPremiseObject> inputs = new Dictionary <string, IPremiseObject>();
if (switcher == null)
{
return(inputs);
}
// The bound object of the switcher should be the output zone object at the device level
IPremiseObject boundObject = switcher.GetRefValueAsync("BoundObject").GetAwaiter().GetResult();
if (!boundObject.IsValidObject())
{
string path = switcher.GetPathAsync().GetAwaiter().GetResult();
ReportError(AlexaErrorTypes.ENDPOINT_UNREACHABLE, $"No device bound to switcher at {path}.");
return(inputs);
}
// the parent should be the actual switcher
IPremiseObject actualSwitcher = boundObject.GetParentAsync().GetAwaiter().GetResult();
if (!actualSwitcher.IsValidObject())
{
string path = boundObject.GetPathAsync().GetAwaiter().GetResult();
ReportError(AlexaErrorTypes.INTERNAL_ERROR, $"Unexpected parent at {path}.");
return(inputs);
}
// walk through the children looking for inputs
foreach (IPremiseObject child in actualSwitcher.GetChildrenAsync().GetAwaiter().GetResult())
{
if (child.IsOfTypeAsync(PremiseServer.AlexaAudioVideoInput).GetAwaiter().GetResult())
{
string inputName = GetInputName(child).ToUpper();
inputs.Add(inputName, child);
}
}
return(inputs);
}
public AlexaEndpointHealthController(IPremiseObject endpoint)
: base(endpoint)
{
}
public AlexaTemperatureSensor(IPremiseObject endpoint)
: base(endpoint)
{
PropertyHelpers = new AlexaHVAC();
}
public AlexaSpeaker(IPremiseObject endpoint)
: base(endpoint)
{
PropertyHelpers = new AlexaAV();
}
public AlexaSetPowerStateController(IPremiseObject endpoint)
: base(endpoint)
{
PropertyHelpers = new AlexaPower();
}
public AlexaSetSceneController(IPremiseObject endpoint)
: base(endpoint)
{
PropertyHelpers = new AlexaScene();
}
public ControlResponse Control(ControlRequest alexaRequest)
{
//IPremiseObject PremiseServer.HomeObject, rootObject;
var response = new ControlResponse();
#region CheckRequest
if ((alexaRequest == null) || (alexaRequest.header == null) || (alexaRequest.header.payloadVersion != "2"))
{
response.header.@namespace = Faults.Namespace;
response.header.name = Faults.UnexpectedInformationReceivedError;
response.payload.exception = new ExceptionResponsePayload
{
faultingParameter = "alexaRequest"
};
return(response);
}
#endregion CheckRequest
#region BuildResponse
try
{
response.header.messageId = alexaRequest.header.messageId;
response.header.@namespace = alexaRequest.header.@namespace;
response.header.name = alexaRequest.header.name.Replace("Request", "Confirmation");
}
catch (Exception)
{
response.header.@namespace = Faults.Namespace;
response.header.name = Faults.UnexpectedInformationReceivedError;
response.payload.exception = new ExceptionResponsePayload
{
faultingParameter = "alexaRequest.header.name"
};
return(response);
}
#endregion BuildResponse
//SYSClient client = new SYSClient();
#region ConnectToPremise
if (PremiseServer.HomeObject == null)
{
response.header.@namespace = Faults.Namespace;
response.header.name = Faults.DependentServiceUnavailableError;
response.payload.exception = new ExceptionResponsePayload
{
dependentServiceName = "Premise Server"
};
return(response);
}
#endregion ConnectToPremise
try
{
if (!CheckAccessToken(alexaRequest.payload.accessToken).GetAwaiter().GetResult())
{
response.header.@namespace = Faults.Namespace;
response.header.name = Faults.InvalidAccessTokenError;
response.payload.exception = new ExceptionResponsePayload();
return(response);
}
InformLastContact("ControlRequest:" + alexaRequest.payload.appliance.additionalApplianceDetails.path).GetAwaiter().GetResult();
// check request types
ControlRequestType requestType = ControlRequestType.Unknown;
DeviceType deviceType = DeviceType.Unknown;
string command = alexaRequest.header.name.Trim().ToUpper();
switch (command)
{
case "TURNOFFREQUEST":
requestType = ControlRequestType.TurnOffRequest;
deviceType = DeviceType.OnOff;
break;
case "TURNONREQUEST":
requestType = ControlRequestType.TurnOnRequest;
deviceType = DeviceType.OnOff;
break;
case "SETTARGETTEMPERATUREREQUEST":
requestType = ControlRequestType.SetTargetTemperature;
deviceType = DeviceType.Thermostat;
break;
case "INCREMENTTARGETTEMPERATUREREQUEST":
requestType = ControlRequestType.IncrementTargetTemperature;
deviceType = DeviceType.Thermostat;
break;
case "DECREMENTTARGETTEMPERATUREREQUEST":
requestType = ControlRequestType.DecrementTargetTemperature;
deviceType = DeviceType.Thermostat;
break;
case "SETPERCENTAGEREQUEST":
requestType = ControlRequestType.SetPercentage;
deviceType = DeviceType.Dimmer;
break;
case "INCREMENTPERCENTAGEREQUEST":
requestType = ControlRequestType.IncrementPercentage;
deviceType = DeviceType.Dimmer;
break;
case "DECREMENTPERCENTAGEREQUEST":
requestType = ControlRequestType.DecrementPercentage;
deviceType = DeviceType.Dimmer;
break;
case "SETCOLORREQUEST":
requestType = ControlRequestType.SetColorRequest;
deviceType = DeviceType.ColorLight;
break;
case "SETCOLORTEMPERATUREREQUEST":
requestType = ControlRequestType.SetColorTemperatureRequest;
deviceType = DeviceType.ColorLight;
break;
case "INCREMENTCOLORTEMPERATUREREQUEST":
requestType = ControlRequestType.IncrementColorTemperature;
deviceType = DeviceType.ColorLight;
break;
case "DECREMENTCOLORTEMPERATUREREQUEST":
requestType = ControlRequestType.DecrementColorTemperature;
deviceType = DeviceType.ColorLight;
break;
default:
response.header.@namespace = Faults.Namespace;
response.header.name = Faults.UnsupportedOperationError;
response.payload.exception = new ExceptionResponsePayload();
return(response);
}
// get the object
IPremiseObject applianceToControl = null;
try
{
Guid premiseId = new Guid(alexaRequest.payload.appliance.applianceId);
applianceToControl = PremiseServer.RootObject.GetObject(premiseId.ToString("B")).GetAwaiter().GetResult();
if (applianceToControl == null)
{
throw new Exception();
}
}
catch
{
response.header.@namespace = Faults.Namespace;
response.header.name = Faults.NoSuchTargetError;
response.payload.exception = new ExceptionResponsePayload();
return(response);
}
if (deviceType == DeviceType.OnOff)
{
switch (requestType)
{
case ControlRequestType.TurnOnRequest:
applianceToControl.SetValue("PowerState", "True").GetAwaiter().GetResult();
break;
case ControlRequestType.TurnOffRequest:
applianceToControl.SetValue("PowerState", "False").GetAwaiter().GetResult();
break;
default:
break;
}
}
else if (deviceType == DeviceType.Dimmer)
{
double currentValue = 0.0;
double adjustValue = 0.0;
double valueToSend = 0.0;
switch (requestType)
{
case ControlRequestType.SetPercentage:
// obtain the adjustValue
adjustValue = Math.Round(double.Parse(alexaRequest.payload.percentageState.value), 2).LimitToRange(0.00, 100.00);
// convert from percentage and maintain fractional accuracy
valueToSend = Math.Round(adjustValue / 100.00, 4);
applianceToControl.SetValue("Brightness", valueToSend.ToString()).GetAwaiter().GetResult();
break;
case ControlRequestType.IncrementPercentage:
// obtain the adjustValue
adjustValue = Math.Round(double.Parse(alexaRequest.payload.deltaPercentage.value) / 100.00, 2).LimitToRange(0.00, 100.00);
currentValue = Math.Round(applianceToControl.GetValue <Double>("Brightness").GetAwaiter().GetResult(), 2);
// maintain fractional accuracy
valueToSend = Math.Round(currentValue + adjustValue, 2).LimitToRange(0.00, 1.00);
applianceToControl.SetValue("Brightness", valueToSend.ToString()).GetAwaiter().GetResult();
break;
case ControlRequestType.DecrementPercentage:
// obtain the adjustValue
adjustValue = Math.Round(double.Parse(alexaRequest.payload.deltaPercentage.value) / 100.00, 2).LimitToRange(0.00, 100.00);
currentValue = Math.Round(applianceToControl.GetValue <Double>("Brightness").GetAwaiter().GetResult(), 2);
// maintain fractional accuracy
valueToSend = Math.Round(currentValue - adjustValue, 2).LimitToRange(0.00, 1.00);
applianceToControl.SetValue("Brightness", valueToSend.ToString()).GetAwaiter().GetResult();
break;
default:
break;
}
}
else if (deviceType == DeviceType.ColorLight)
{
const double adjustValue = 100.0;
double currentValue = 0.0;
double valueToSend = 0.0;
response.payload.achievedState = new AchievedState();
switch (requestType)
{
case ControlRequestType.SetColorRequest:
// obtain the adjustValue
double hue = Math.Round(alexaRequest.payload.color.hue.LimitToRange(0, 360), 1);
double saturation = Math.Round(alexaRequest.payload.color.saturation, 4);
double brightness = Math.Round(alexaRequest.payload.color.brightness, 4);
// set the values
applianceToControl.SetValue("Hue", hue.ToString()).GetAwaiter().GetResult();
applianceToControl.SetValue("Saturation", saturation.ToString()).GetAwaiter().GetResult();
applianceToControl.SetValue("Brightness", brightness.ToString()).GetAwaiter().GetResult();
// read them back for achieved state
response.payload.achievedState.color = new ApplianceColorValue
{
hue = Math.Round(applianceToControl.GetValue <Double>("Hue").GetAwaiter().GetResult(), 1),
saturation = Math.Round(applianceToControl.GetValue <Double>("Saturation").GetAwaiter().GetResult(), 4),
brightness = Math.Round(applianceToControl.GetValue <Double>("Brightness").GetAwaiter().GetResult(), 4)
};
break;
case ControlRequestType.SetColorTemperatureRequest:
valueToSend = alexaRequest.payload.colorTemperature.value.LimitToRange(1000, 10000);
// set the value
applianceToControl.SetValue("Temperature", Math.Round(valueToSend, 0).ToString()).GetAwaiter().GetResult();
// read it back
response.payload.achievedState.colorTemperature = new ApplianceColorTemperatureValue
{
value = applianceToControl.GetValue <int>("Temperature").GetAwaiter().GetResult()
};
break;
case ControlRequestType.IncrementColorTemperature:
currentValue = applianceToControl.GetValue <int>("Temperature").GetAwaiter().GetResult();
valueToSend = Math.Round(currentValue + adjustValue, 0).LimitToRange(1000, 10000);
// set the value
applianceToControl.SetValue("Temperature", valueToSend.ToString()).GetAwaiter().GetResult();
// read it back
response.payload.achievedState.colorTemperature = new ApplianceColorTemperatureValue
{
value = applianceToControl.GetValue <int>("Temperature").GetAwaiter().GetResult()
};
break;
case ControlRequestType.DecrementColorTemperature:
currentValue = Math.Round(applianceToControl.GetValue <Double>("Temperature").GetAwaiter().GetResult(), 2);
valueToSend = Math.Round(currentValue - adjustValue, 0).LimitToRange(1000, 10000);
// set the value
applianceToControl.SetValue("Temperature", valueToSend.ToString()).GetAwaiter().GetResult();
// read it back
response.payload.achievedState.colorTemperature = new ApplianceColorTemperatureValue
{
value = applianceToControl.GetValue <int>("Temperature").GetAwaiter().GetResult()
};
break;
default:
break;
}
}
else if (deviceType == DeviceType.Thermostat)
{
int previousTemperatureMode;
int temperatureMode;
Temperature previousTargetTemperature = null;
Temperature targetTemperature = null;
double deltaTemperatureC = 0.0; // in C
// obtain previous state (sys stores temperatures as K)
previousTemperatureMode = applianceToControl.GetValue <int>("TemperatureMode").GetAwaiter().GetResult();
previousTargetTemperature = new Temperature(applianceToControl.GetValue <double>("CurrentSetPoint").GetAwaiter().GetResult());
switch (requestType)
{
case ControlRequestType.SetTargetTemperature:
// get target temperature in C
targetTemperature = new Temperature
{
Celcius = double.Parse(alexaRequest.payload.targetTemperature.value)
};
break;
case ControlRequestType.IncrementTargetTemperature:
// get delta temp in C
deltaTemperatureC = double.Parse(alexaRequest.payload.deltaTemperature.value);
// increment the targetTemp
targetTemperature = new Temperature
{
Celcius = previousTargetTemperature.Celcius + deltaTemperatureC
};
break;
case ControlRequestType.DecrementTargetTemperature:
// get delta temp in C
deltaTemperatureC = double.Parse(alexaRequest.payload.deltaTemperature.value);
// decrement the targetTemp
targetTemperature = new Temperature
{
Celcius = previousTargetTemperature.Celcius - deltaTemperatureC
};
break;
default:
targetTemperature = new Temperature(0.00);
previousTemperatureMode = 10; // error
break;
}
// set new target temperature
applianceToControl.SetValue("CurrentSetPoint", targetTemperature.Kelvin.ToString()).GetAwaiter().GetResult();
response.payload.targetTemperature = new ApplianceValue
{
value = targetTemperature.Celcius.ToString()
};
// get new mode
temperatureMode = applianceToControl.GetValue <int>("TemperatureMode").GetAwaiter().GetResult();
// report new mode
response.payload.temperatureMode = new ApplianceValue
{
value = TemperatureMode.ModeToString(temperatureMode)
};
// alloc a previousState object
response.payload.previousState = new AppliancePreviousState
{
// report previous mode
mode = new ApplianceValue
{
value = TemperatureMode.ModeToString(previousTemperatureMode)
},
// report previous targetTemperature in C
targetTemperature = new ApplianceValue
{
value = previousTargetTemperature.Celcius.ToString()
}
};
}
else
{
response.header.@namespace = Faults.Namespace;
response.header.name = Faults.UnsupportedOperationError;
response.payload.exception = new ExceptionResponsePayload();
}
}
catch
{
response.header.@namespace = Faults.Namespace;
response.header.name = Faults.DriverpublicError;
response.payload.exception = new ExceptionResponsePayload();
}
return(response);
}
public Dictionary <string, IPremiseSubscription> SubscribeToSupportedProperties(IPremiseObject endpoint, DiscoveryEndpoint discoveryEndpoint, Action <dynamic> callback)
{
Dictionary <string, IPremiseSubscription> subscriptions = new Dictionary <string, IPremiseSubscription>();
foreach (Capability capability in discoveryEndpoint.capabilities)
{
IPremiseSubscription subscription = null;
if (capability.HasProperties() == false)
{
continue;
}
if (capability.properties.proactivelyReported)
{
switch (capability.@interface)
{
case "Alexa.EndpointHealth":
subscription = endpoint.SubscribeAsync("IsReachable", GetType().AssemblyQualifiedName, callback).GetAwaiter().GetResult();
break;
}
}
if (subscription != null)
{
subscriptions.Add(discoveryEndpoint.endpointId + "." + capability.@interface, subscription);
}
}
return(subscriptions);
}
public void SetEndpoint(IPremiseObject premiseObject)
{
Endpoint = premiseObject;
}
public Dictionary <string, IPremiseSubscription> SubscribeToSupportedProperties(IPremiseObject endpoint, DiscoveryEndpoint discoveryEndpoint, Action <dynamic> callback)
{
Dictionary <string, IPremiseSubscription> subscriptions = new Dictionary <string, IPremiseSubscription>();
foreach (Capability capability in discoveryEndpoint.capabilities)
{
IPremiseSubscription subscription = null;
if (!capability.HasProperties()) // scenes are a special cased
{
switch (capability.@interface)
{
case "Alexa.SceneController":
subscription = endpoint.SubscribeAsync("PowerState", GetType().AssemblyQualifiedName, callback).GetAwaiter().GetResult();
break;
}
}
if (subscription != null)
{
subscriptions.Add(discoveryEndpoint.endpointId + "." + capability.@interface, subscription);
}
}
return(subscriptions);
}
public AlexaColorTemperatureController(IPremiseObject endpoint)
: base(endpoint)
{
PropertyHelpers = new AlexaLighting();
}
private static bool CheckStatus()
{
try
{
if (BackgroundTaskManager.Shutdown.IsCancellationRequested)
{
return(false);
}
if (IsClientConnected())
{
return(true);
}
if (_homeObject == null)
{
using (HomeObjectLock.Lock())
{
try
{
_homeObject = _sysClient.ConnectAsync(PremiseServerAddress)?.GetAwaiter().GetResult();
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
_homeObject = null;
}
}
if (_homeObject == null)
{
Debug.WriteLine("Cannot connect to Premise server!");
return(false);
}
}
else
{
_sysClient.Disconnect();
using (homeObjectSubscriptionLock.Lock())
{
_asyncEventSubscription = null;
}
using (subscriptionsLock.Lock())
{
subscriptions.Clear();
_sysClient.Subscriptions.Clear();
}
using (endpointsLock.Lock())
{
endpoints.Clear();
}
using (HomeObjectLock.Lock())
{
_homeObject = null;
try
{
_homeObject = _sysClient.ConnectAsync(PremiseServerAddress).GetAwaiter().GetResult();
}
catch
{
_homeObject = null;
return(false);
}
}
}
using (homeObjectSubscriptionLock.Lock())
{
enableAsyncEvents = HomeObject.GetValueAsync <bool>("SendAsyncEventsToAlexa").GetAwaiter().GetResult();
}
if (IsAsyncEventsEnabled)
{
Task.Run(SubscribeAllAsync);
}
SubScribeToHomeObjectEvents();
return(true);
}
catch (Exception ex)
{
_homeObject = null;
subscriptions.Clear();
endpoints.Clear();
Debug.WriteLine(ex.Message);
return(false);
}
}
public static void AlexaPropertyChanged(dynamic @params)
{
Subscription sub = (Subscription)@params;
using (deDupeLock.Lock())
{
// Premise can send multiple notifications for a single object, one for each
// subscribed property that changes. The state report function here will capture
// states of all properties, so the DeDupeDictionary prevents multiple state reports
// from being sent for essentially the same event.
if (DeDupeDictionary.ContainsKey(sub.sysObjectId))
{
return;
}
DeDupeDictionary.Add(sub.sysObjectId, sub);
}
Task.Run(() =>
{
// get the endpoint and endpoint capabilities
Guid premiseId = new Guid(sub.sysObjectId);
IPremiseObject endpoint = HomeObject.GetObjectAsync(premiseId.ToString("B")).GetAwaiter().GetResult();
if (!endpoint.IsValidObject())
{
return;
}
DiscoveryEndpoint discoveryEndpoint = GetDiscoveryEndpointAsync(endpoint).GetAwaiter().GetResult();
if (discoveryEndpoint == null)
{
return;
}
// get the authorization code for the notification
string authCode;
using (asyncObjectsLock.Lock())
{
authCode = (string)HomeObject.GetValueAsync("AlexaAsyncAuthorizationCode").GetAwaiter().GetResult();
}
// build the change report
AlexaChangeReport changeReport = new AlexaChangeReport();
[email protected] = Guid.NewGuid().ToString("D");
[email protected].@namespace = "Alexa";
[email protected] = "3";
[email protected] = "BearerToken";
[email protected] = authCode;
[email protected] = premiseId.ToString("D").ToUpper();
[email protected] = discoveryEndpoint.cookie;
[email protected] = "PHYSICAL_INTERACTION";
// get the device type and controller (e.g. AlexaAV, AlexaHVAC)
IAlexaDeviceType deviceType = null;
IAlexaController controller = null;
List <AlexaProperty> relatedPropertyStates = null;
bool hasScene = false;
foreach (IAlexaController controllerToTest in Controllers.Values)
{
if (!controllerToTest.HasPremiseProperty(sub.propertyName))
{
continue;
}
controller = controllerToTest;
Type type = Type.GetType(controller.GetAssemblyTypeName());
if (type == null)
{
continue;
}
// found a controller, get an instance of the assembly
deviceType = (IAlexaDeviceType)Activator.CreateInstance(type);
// Determine if this deviceType supports the desired capability
// note: This handles situation where the same property name is used by different
// controllers. e.g. "brightness" is used in both ColorController and BrightnessController
relatedPropertyStates = deviceType.FindRelatedProperties(endpoint, "");
foreach (AlexaProperty property in relatedPropertyStates)
{
// if so, this is the correct type
if (property.@namespace == controller.GetNameSpace())
{
break;
}
}
}
// ReSharper disable once ConditionIsAlwaysTrueOrFalse
if ((deviceType == null) || (controller == null || relatedPropertyStates == null))
{
return;
}
foreach (AlexaProperty prop in relatedPropertyStates)
{
if (prop.@namespace == "Alexa.SceneController")
{
hasScene = true;
continue;
}
if (([email protected] == 0) && (prop.name == controller.MapPremisePropertyToAlexaProperty(sub.propertyName)))
{
[email protected](prop);
}
else
{
string propKey = prop.@namespace + "." + prop.name;
changeReport.context.propertiesInternal.Add(propKey, prop);
}
}
[email protected] = "ChangeReport";
// scenes are special case
if (hasScene)
{
AlexaSetSceneController sceneController = new AlexaSetSceneController(endpoint);
changeReport = sceneController.AlterChangeReport(changeReport);
}
StateChangeReportWrapper item = new StateChangeReportWrapper
{
ChangeReport = changeReport
};
stateReportQueue.Enqueue(item);
using (deDupeLock.Lock())
{
DeDupeDictionary.Remove(sub.sysObjectId);
}
});
}
public AlexaDiscoveryController(IPremiseObject endpoint)
: base(endpoint)
{
}
public AlexaThermostatController(IPremiseObject endpoint)
: base(endpoint)
{
PropertyHelpers = new AlexaHVAC();
}
public AlexaChannelController(IPremiseObject endpoint)
: base(endpoint)
{
PropertyHelpers = new AlexaAV();
}
public Dictionary <string, IPremiseSubscription> SubscribeToSupportedProperties(IPremiseObject endpoint, DiscoveryEndpoint discoveryEndpoint, Action <dynamic> callback)
{
Dictionary <string, IPremiseSubscription> subscriptions = new Dictionary <string, IPremiseSubscription>();
foreach (Capability capability in discoveryEndpoint.capabilities)
{
if (capability.HasProperties() == false)
{
continue;
}
if (!capability.properties.proactivelyReported)
{
continue;
}
IAlexaController controller = null;
switch (capability.@interface)
{
case "Alexa.ChannelController":
controller = new AlexaChannelController();
break;
case "Alexa.InputController":
controller = new AlexaInputController();
break;
case "Alexa.PlaybackController":
controller = new AlexaPlaybackController();
break;
case "Alexa.Speaker":
controller = new AlexaSpeaker();
break;
}
if (controller == null)
{
continue;
}
foreach (string premiseProperty in controller.GetPremiseProperties())
{
string index = discoveryEndpoint.endpointId + $".{premiseProperty}." + capability.@interface;
if (subscriptions.ContainsKey(index))
{
continue;
}
IPremiseSubscription subscription = endpoint.SubscribeAsync(premiseProperty, GetType().AssemblyQualifiedName, callback).GetAwaiter().GetResult();
if (subscription != null)
{
subscriptions.Add(index, subscription);
}
}
}
return(subscriptions);
}
