private static void OnConversationIdleCheckEvent(object source, ElapsedEventArgs e)
{
foreach (var externalConversationId in ConversationRouter.Keys)
{
var conversation = ConversationRouter[externalConversationId];
if (DateTime.Now - conversation.LastConversationUpdateTime >
TimeSpan.FromMinutes(ConversationEndAfterIdleTimeInMinute))
{
// conversation inactive for > ConversationEndAfterIdleTimeInMinute, removing from s_conversationRouter
// If same external conversation active again, a new bot conversation will be created
conversation = null;
ConversationRouter.Remove(externalConversationId);
}
}
}
/// <summary>
/// Search if an external Azure Bot Service channel conversation is
/// connected to an existing Power Virtual Agent bot conversation
/// </summary>
/// <returns>true if conversation mapping exists, otherwiser false</returns>
/// <param name="externalCID">external Azure Bot Service channel conversation ID</param>
public bool ConversationExists(string externalCID)
{
return(ConversationRouter.ContainsKey(externalCID));
}
/// <summary>
/// Retrive or start a Power Virtual Agent bot conversation
/// for a given external Azure Bot Service channel conversation
/// </summary>
/// <returns>Power Virtual Agent bot conversation</returns>
/// <param name="externalCID">external Azure Bot Service channel conversation ID</param>
public async Task <RelayConversation> GetOrCreateBotConversationAsync(string externalCID, IBotService botService)
{
return(ConversationRouter.TryGetValue(externalCID, out var botConversation) ?
botConversation : await StartBotConversationAsync(externalCID, botService));
}