/// <summary>
/// Creates a Host Device.
/// </summary>
public static HostDevice CreateHostDevice(string deviceId, string friendlyName)
{
if (ValidateTopicLevel(deviceId, out var validationMessage) == false)
{
throw new ArgumentException(validationMessage, nameof(deviceId));
}
var returnDevice = new HostDevice(BaseTopic, deviceId, friendlyName);
return(returnDevice);
}
internal void Initialize(HostDevice parentDevice)
{
_parentDevice = parentDevice;
_parentDevice.InternalPropertyPublish($"{_propertyId}/$name", _nameAttribute);
_parentDevice.InternalPropertyPublish($"{_propertyId}/$datatype", _dataTypeAttribute.ToHomiePayload());
_parentDevice.InternalPropertyPublish($"{_propertyId}/$format", _formatAttribute);
_parentDevice.InternalPropertyPublish($"{_propertyId}/$settable", _isSettableAttribute.ToString().ToLower());
_parentDevice.InternalPropertyPublish($"{_propertyId}/$retained", _isRetainedAttribute.ToString().ToLower());
_parentDevice.InternalPropertyPublish($"{_propertyId}/$unit", _unitAttribute);
if (Type != PropertyType.Command)
{
_parentDevice.InternalPropertyPublish($"{_propertyId}", _rawValue);
}
if (Type == PropertyType.Parameter)
{
_parentDevice.InternalPropertySubscribe($"{_propertyId}/set", (payload) => {
if (ValidatePayload(payload) == true)
{
_rawValue = payload;
RaisePropertyChanged(this, new PropertyChangedEventArgs("Value"));
_parentDevice.InternalPropertyPublish($"{_propertyId}", _rawValue);
}
});
}
if (Type == PropertyType.Command)
{
// Before subsribing to SET events, need to clear the topic. It may be present on the broker from previous runs,
// resulting in command activation when this devices boots up. Although there is *no* actual message sent.
_parentDevice.InternalPropertyPublish($"{_propertyId}/set", "");
// Now subsribing to a clean topic.
_parentDevice.InternalPropertySubscribe($"{_propertyId}/set", (payload) => {
if (ValidatePayload(payload) == true)
{
_rawValue = payload;
RaisePropertyChanged(this, new PropertyChangedEventArgs("Value"));
}
});
}
}