public static List <Message> GetMessagesList(MessagesMessages messages)
{
if (messages.As <MessagesMessagesConstructor>() != null)
{
return(messages.Cast <MessagesMessagesConstructor>().messages);
}
else if (messages.As <MessagesMessagesSliceConstructor>() != null)
{
return(messages.Cast <MessagesMessagesSliceConstructor>().messages);
}
return(null);
}
/// <summary>
/// Gets message history for a chat.
/// </summary>
/// <param name="contact">User</param>
/// <param name="offset">Number of list elements to be skipped. As of Layer 15 this value is added to the one that was calculated from max_id. Negative values are also accepted.</param>
/// <param name="maxId">If a positive value was transferred, the method will return only messages with IDs less than max_id</param>
/// <returns>Returns message history for a chat..</returns>
public async Task <Models.History> GetHistoryAsync(Models.Contact contact)
{
await ConnectAsync();
int limit = 30;
Models.History history = new Models.History
{
Messages = new List <Models.Message>(),
};
InputPeer peer = null;
if (contact.IsForeign)
{
peer = new InputPeerForeignConstructor(contact.Id, contact.AccessHash);
}
else
{
peer = new InputPeerContactConstructor(contact.Id);
}
MessagesMessages result = await _client.GetHistory(peer, 0, limit);
if (result is MessagesMessagesConstructor messagesMessagesConstructor)
{
history.Messages.AddRange(messagesMessagesConstructor.messages.Select(m => (Models.Message)m).Where(m => m != null));
history.AddChats(messagesMessagesConstructor.chats.Select(c => (Models.Chat)c).Where(c => c != null));
history.AddContacts(messagesMessagesConstructor.users.Select(u => (Models.Contact)u).Where(u => u != null));
}
else if (result is MessagesMessagesSliceConstructor messagesMessagesSliceConstructor)
{
int count = messagesMessagesSliceConstructor.count;
int total = 0;
do
{
total += limit;
history.Messages.AddRange(messagesMessagesSliceConstructor.messages.Select(m => (Models.Message)m).Where(m => m != null));
history.AddChats(messagesMessagesSliceConstructor.chats.Select(c => (Models.Chat)c).Where(c => c != null));
history.AddContacts(messagesMessagesSliceConstructor.users.Select(u => (Models.Contact)u).Where(u => u != null));
if (total > count)
{
break;
}
result = await _client.GetHistory(peer, total, limit);
messagesMessagesSliceConstructor = (MessagesMessagesSliceConstructor)result;
} while (true);
}
return(history);
}
public override void OnResponse(BinaryReader reader)
{
messages = TLObject.Read <MessagesMessages>(reader);
}