public Stream Handler(Stream inputStream, ILambdaContext context)
{
_context = context;
StreamReader reader = new StreamReader(inputStream);
string request = reader.ReadToEnd();
log("Request:");
log(request);
AlexaResponse alexaResponse;
JObject jRequest = JObject.Parse(request);
string nameSpace = jRequest["directive"]["header"]["namespace"].Value <string>();
string name = jRequest["directive"]["header"]["name"].Value <string>();
switch (nameSpace)
{
case "Alexa.Authorization":
{
log("Alexa.Authorization Request");
alexaResponse = new AlexaResponse("Alexa.Authorization", "AcceptGrant.Response");
break;
}
case "Alexa.Discovery":
{
log("Alexa.Discovery Request");
alexaResponse = discoverHubitatWindowShades();
break;
}
case "Alexa.ModeController":
{
log("Alexa.ModeController Request");
string correlationToken = jRequest["directive"]["header"]["correlationToken"].Value <string>();
string endpointId = jRequest["directive"]["endpoint"]["endpointId"].Value <string>();
if (name == "SetMode")
{
string newMode = jRequest["directive"]["payload"]["mode"].Value <string>();
log($"SetMode: {newMode}");
string hubitatCommand = "open";
if (newMode == "Position.Up")
{
hubitatCommand = "open";
}
else if (newMode == "Position.Down")
{
hubitatCommand = "close";
}
log($"command: {hubitatCommand}, endpoint: {endpointId}");
sendCommandToHubitat(endpointId, hubitatCommand);
alexaResponse = new AlexaResponse("Alexa", "Response", endpointId, "INVALID", correlationToken);
alexaResponse.AddContextProperty("Alexa.ModeController", "mode", newMode, "Blinds.Position", 200);
}
else
{
alexaResponse = new AlexaResponse("Alexa", "Response", endpointId, "INVALID", correlationToken);
}
break;
}
default:
{
log("INVALID Namespace");
alexaResponse = new AlexaResponse();
break;
}
}
string response = alexaResponse.ToString();
log("Response:");
log(response);
return(new MemoryStream(Encoding.UTF8.GetBytes(response)));
}
private AlexaResponse discoverHubitatWindowShades()
{
var alexaResponse = new AlexaResponse("Alexa.Discovery", "Discover.Response", "2121");
JObject jCapabilityAlexa = alexaResponse.CreatePayloadEndpointCapability();
JObject jCapabilityBlinds = alexaResponse.CreateBlindsCapability();
JArray capabilities = new JArray();
capabilities.Add(jCapabilityAlexa);
capabilities.Add(jCapabilityBlinds);
HttpClient httpClient = new HttpClient();
Task <HttpResponseMessage> getTask = httpClient.GetAsync($"https://cloud.hubitat.com/api/{_hubitatHubId}/apps/833/devices/all?access_token={_hubitatAccessToken}");
getTask.Wait();
var response = getTask.Result;
if (response.StatusCode != System.Net.HttpStatusCode.OK)
{
log($"Could not retrieve Hubitat devices: {response.StatusCode}");
}
Task <string> readTask = response.Content.ReadAsStringAsync();
readTask.Wait();
var json = readTask.Result;
//log(json);
var jDevices = JArray.Parse(json);
foreach (JObject jDevice in jDevices)
{
//log(jDevice.ToString());
var deviceIsWindowShade = false;
JArray jCapabilities = jDevice["capabilities"].Value <JArray>();
foreach (JToken jCapability in jCapabilities)
{
if (jCapability.Value <string>() == "WindowShade")
{
deviceIsWindowShade = true;
}
}
if (deviceIsWindowShade)
{
var name = jDevice["name"].Value <string>();
var id = jDevice["id"].Value <string>();
alexaResponse.AddPayloadEndpoint(id, name, capabilities.ToString());
}
}
return(alexaResponse);
}