public IObservable <Message> LoadMessage(long chatId, long messageId)
{
var scope = new MessageLoaderScope(_agent);
return(scope.GetMessage(chatId, messageId)
.SelectSeq(m => MapToMessage(scope, m))
.Finally(() =>
{
scope.Dispose();
}));
}
public IObservable <Message> LoadPinnedMessage(Chat chat)
{
var scope = new MessageLoaderScope(_agent);
return(GetPinnedMessage(chat.ChatData)
.Where(m => m != null)
.SelectSeq(m => MapToMessage(scope, m))
.Finally(() =>
{
scope.Dispose();
}));
}
public IObservable <Message> LoadMessages(
Aggregate feed,
AggregateLoadingState state)
{
var scope = new MessageLoaderScope(_agent);
return(LoadAggregateMessages(feed, state)
.SelectSeq(m => MapToMessage(scope, m))
.Finally(() =>
{
scope.Dispose();
}));
}
private IObservable <Message> MapToMessage(
MessageLoaderScope scope,
TdApi.Message msg,
bool fetchReply = true)
{
return(Observable.Return(new Message
{
MessageData = msg
})
.SelectSeq(message =>
{
// get chat data
return scope.GetChat(msg.ChatId)
.Select(chat =>
{
message.ChatData = chat;
return message;
});
})
.SelectSeq(message =>
{
// get user data
if (message.MessageData.SenderUserId != 0)
{
return scope.GetUser(message.MessageData.SenderUserId)
.Select(user =>
{
message.UserData = user;
return message;
});
}
return Observable.Return(message);
})
.SelectSeq(message =>
{
// get reply data
if (fetchReply && message.MessageData.ReplyToMessageId != 0)
{
return scope.GetMessage(message.MessageData.ChatId, message.MessageData.ReplyToMessageId)
.SelectSeq(m => MapToMessage(scope, m, false))
.Select(reply =>
{
message.ReplyMessage = reply;
return message;
});
}
return Observable.Return(message);
}));
}
public IObservable <Message> LoadPrevMessages(
Chat chat,
long fromMessageId,
int limit)
{
var scope = new MessageLoaderScope(_agent);
return(GetMessages(chat.ChatData, fromMessageId, limit, 0)
.SelectSeq(m => MapToMessage(scope, m))
.Finally(() =>
{
scope.Dispose();
}));
}