//public virtual async Task<string> GetLastMessageFromUser(string sUserName)
//{
// string sResult;
// var client = new TLSharp.Core.TelegramClient(apiId, apiHash);
// await client.ConnectAsync();
// var normalizedUser = (sUserName.StartsWith("@") ?
// sUserName.Substring(1, sUserName.Length - 1) :
// sUserName).ToLower();
// var dialogs = (TLDialogs)await client.GetUserDialogsAsync();
// var user = dialogs.Users
// .Where(x => x.GetType() == typeof(TLUser))
// .OfType<TLUser>()
// .FirstOrDefault(x => x.Username != null && x.Username.ToLower() == normalizedUser);
// TLAbsMessages tlAbsMessages = await client.GetHistoryAsync(new TLInputPeerUser() {
// UserId = user.Id,
// AccessHash = user.AccessHash.Value
// }, 0, -1, 100);
// TLMessages tlMessages = (TLMessages)tlAbsMessages;
// TLMessage lastmessage = (TLMessage)tlMessages.Messages[0];
// sResult = lastmessage.FromId.ToString() + ":" + lastmessage.Message;
// return sResult;
//}
public virtual async Task <TLMessage> GetLastMessageFromUser(string sUserName)
{
TLMessage lastmessage = null;
var client = new TLSharp.Core.TelegramClient(apiId, apiHash);
await client.ConnectAsync();
var normalizedUser = (sUserName.StartsWith("@") ?
sUserName.Substring(1, sUserName.Length - 1) :
sUserName).ToLower();
var dialogs = (TLDialogs)await client.GetUserDialogsAsync();
var user = dialogs.Users
.Where(x => x.GetType() == typeof(TLUser))
.OfType <TLUser>()
.FirstOrDefault(x => x.Username != null && x.Username.ToLower() == normalizedUser);
TLAbsMessages tlAbsMessages = await client.GetHistoryAsync(new TLInputPeerUser()
{
UserId = user.Id,
AccessHash = user.AccessHash.Value
}, 0, -1, 100);
if (tlAbsMessages.GetType() == typeof(TLMessagesSlice))
{
var castMessages = (TLMessagesSlice)tlAbsMessages;
lastmessage = (TLMessage)castMessages.Messages[0];
}
else if (tlAbsMessages.GetType() == typeof(TLMessages))
{
TLMessages tlMessages = (TLMessages)tlAbsMessages;
lastmessage = (TLMessage)tlMessages.Messages[0];
}
return(lastmessage);
}
public static TelegramMessages FromTLMessages(TLAbsMessages absMessages)
{
if (absMessages is TLMessages messages)
{
return(new TelegramMessages(messages));
}
else if (absMessages is TLMessagesSlice messagesSlice)
{
return(new TelegramMessages(messagesSlice));
}
else if (absMessages is TLChannelMessages channelMessages)
{
return(new TelegramMessages(channelMessages));
}
else
{
throw new Exception("Unsupported type " + absMessages.GetType());
}
}