private void OnChatRemoved(string chatId)
{
ModifyChatsSafely(() =>
{
var chatSummary = ChatsCollection.FirstOrDefault(x => x.ChatId == chatId);
if (chatSummary != null)
{
ChatsCollection.Remove(chatSummary);
}
});
_messagesCache.RemoveMessagesAsync(chatId).FireAndForget();
}
private void OnChatUpdated(ChatSummaryModel updatedChatSummary)
{
if (updatedChatSummary == null)
{
return;
}
ModifyChatsSafely(() =>
{
var chatSummary = ChatsCollection.FirstOrDefault(x => x.ChatId == updatedChatSummary.Id);
if (chatSummary != null)
{
chatSummary.UpdateModel(updatedChatSummary);
}
});
}
public async Task <ChatSummaryViewModel> FindOrCreateDirectChatAsync(string memberId)
{
var directChatWithMember = ChatsCollection.FirstOrDefault(x =>
x.Parameter.Type == ChannelType.Direct &&
x.Parameter.DirectMember.Id == memberId);
if (directChatWithMember != null)
{
return(directChatWithMember);
}
var directChatModel = await _chatService.CreateDirectChatAsync(memberId).ConfigureAwait(false);
if (directChatModel == null)
{
return(null);
}
var directChatViewModel = _viewModelFactoryService.ResolveViewModel <ChatSummaryViewModel, ChatSummaryModel>(directChatModel);
return(directChatViewModel);
}
public ChatSummaryViewModel GetChatById(string chatId)
{
return(ChatsCollection.FirstOrDefault(x => x.ChatId == chatId));
}