/// <summary>
/// Poll ongoing chat for info and any events occuring since last call to poll, <see cref="Cafex.LiveAssist.Bot.ChatInfo"/>
/// </summary>
/// <param name="chatContext">Reference to specific chat to poll</param>
/// <returns>An instance of <c>ChatInfo</c></returns>
public async Task <ChatInfo> Poll(ChatContext chatContext)
{
if (chatContext != null)
{
LPEvent chatEvent = await PollEvents(chatContext);
if (chatEvent != null && chatEvent.chat.link != null)
{
foreach (Link link in chatEvent.chat.link)
{
if (link.rel.Equals("next"))
{
chatContext.NextEvents = RepairUri(link.href).AbsoluteUri;
}
}
}
else
{
return(null);
}
return(chatEvent.getChatInfo());
}
else
{
return(null);
}
}
internal async Task <LPEvent> PollEvents(ChatContext chatContext)
{
LPEvent chatEvent = null;
if (client != null && chatContext.NextEvents != null)
{
HttpResponseMessage response = await client.GetAsync(chatContext.NextEvents);
if (response.IsSuccessStatusCode)
{
string content = await response.Content.ReadAsStringAsync();
chatEvent = JsonConvert.DeserializeObject <LPEvent>(content);
response.Dispose();
}
else
{
response.Dispose();
throw new ChatException($"Failed to poll events, received HTTP response code {response.StatusCode} from chat server");
}
}
else
{
return(null);
}
return(chatEvent);
}
