public async Task <SubscriptionOnStateValue> Subscribe(string sentinelHost, string packageHost, string stateValueName)
{
using (var client = new HomeConnectionClient(HomeHubConnection))
{
var stateValueKey = new StateValueKey(sentinelHost, packageHost, stateValueName);
await SubscribeOnValueChanged(stateValueKey);
var subscriptionKeyValue = await client.PostAsJson <string>("subscription",
new Subscription(SentinelHost.GetName(), sentinelHost, packageHost, stateValueName));
if (!string.IsNullOrEmpty(subscriptionKeyValue))
{
var subscriptionKey = new SubscriptionKey(subscriptionKeyValue);
if (subscriptionKey.IsValid())
{
var subscriptionOnStateValue = new SubscriptionOnStateValue(subscriptionKey, stateValueKey);
AddSubscriptionInStore(stateValueKey, subscriptionOnStateValue);
return(subscriptionOnStateValue);
}
}
else
{
await UnSubscribeOnValueChanged(new StateValueKey(sentinelHost, packageHost, stateValueName));
}
}
return(null);
}
private void AddSubscriptionInStore(StateValueKey stateValueKey, SubscriptionOnStateValue subscriptionOnStateValue)
{
if (_subscriptionsStore.ContainsKey(stateValueKey))
{
_subscriptionsStore[stateValueKey] = subscriptionOnStateValue;
}
else
{
_subscriptionsStore.Add(stateValueKey, subscriptionOnStateValue);
}
}