private uint GetMessagePtsForTime(BubbleGroup group, long fromTime, out bool queryChat, out bool lastMessageIsExtendedParty)
{
VisualBubble bubbleToSyncFrom = null;
bool localQueryChat = false;
bool localLastMessageIsExtendedParty = false;
foreach (var bubble in BubbleGroupSync.ReadBubblesFromDatabase(group))
{
if (bubble is PartyInformationBubble)
{
if ((bubble as PartyInformationBubble).Type == PartyInformationBubble.InformationType.UpgradedToExtendedParty)
{
localQueryChat = true;
if (bubble.Time <= fromTime)
{
localLastMessageIsExtendedParty = true;
bubbleToSyncFrom = bubble;
break;
}
}
}
if (bubble.Time <= fromTime)
{
bubbleToSyncFrom = bubble;
break;
}
}
if (bubbleToSyncFrom != null)
{
if (bubbleToSyncFrom.IdService == null)
{
queryChat = localQueryChat;
lastMessageIsExtendedParty = localLastMessageIsExtendedParty;
return(1);
}
queryChat = localQueryChat;
lastMessageIsExtendedParty = localLastMessageIsExtendedParty;
return(uint.Parse(bubbleToSyncFrom.IdService));
}
queryChat = localQueryChat;
lastMessageIsExtendedParty = localLastMessageIsExtendedParty;
return(1);
}
private IMessagesMessages GetMessageHistory(BubbleGroup group, long fromTime, int max)
{
using (var client = new FullClientDisposable(this))
{
if (group.IsExtendedParty)
{
IMessagesMessages finalMessages = MakeMessagesMessages(new List <IChat>(), new List <IUser>(), new List <IMessage>());
Func <BubbleGroup, bool> isNewBubbleGroup = bubbleGroup =>
{
var bubbles = BubbleGroupSync.ReadBubblesFromDatabase(group);
if (bubbles.Count() > 1)
{
return(false);
}
foreach (var bubble in bubbles)
{
if (bubble is NewBubble)
{
return(true);
}
}
return(false);
};
Func <IMessagesMessages, bool> hasSuperGroupCreatedMessage = messages =>
{
var messagesChannelMessages = messages as MessagesChannelMessages;
if (messagesChannelMessages != null)
{
foreach (var message in messagesChannelMessages.Messages)
{
var messageService = message as MessageService;
if (messageService == null)
{
continue;
}
if (messageService.Action is MessageActionChannelMigrateFrom)
{
return(true);
}
}
}
return(false);
};
Func <IMessagesMessages, int> getMessagesCount = messages =>
{
var messagesChats = messages as MessagesMessages;
var messagesChatsSlice = messages as MessagesMessagesSlice;
var messagesChatsChannel = messages as MessagesChannelMessages;
if (messagesChats != null)
{
return(messagesChats.Messages.Count);
}
if (messagesChatsSlice != null)
{
return(messagesChats.Messages.Count);
}
if (messagesChatsChannel != null)
{
return(messagesChatsChannel.Messages.Count);
}
return(0);
};
Action <List <IMessage>, string> changeAddress = (messages, address) =>
{
foreach (var message in messages)
{
var normalMessage = message as Message;
var serviceMessage = message as MessageService;
if (normalMessage != null)
{
normalMessage.ToId = new PeerChannel
{
ChannelId = uint.Parse(address)
};
}
if (serviceMessage != null)
{
serviceMessage.ToId = new PeerChannel
{
ChannelId = uint.Parse(address)
};
}
}
};
Action <IMessagesMessages, string> updateChatMessageAddresses = (chatMessages, address) =>
{
var messagesChats = chatMessages as MessagesMessages;
var messagesChatsSlice = chatMessages as MessagesMessagesSlice;
if (messagesChats != null)
{
changeAddress(messagesChats.Messages, address);
}
if (messagesChatsSlice != null)
{
changeAddress(messagesChatsSlice.Messages, address);
}
};
do
{
if (isNewBubbleGroup(group))
{
var newOffsetId = GetLastPtsForChannel(client.Client, group.Address);
SaveChannelState(uint.Parse(group.Address), newOffsetId); //save the state for this channel since it wount have any as its a new bubblegroup
finalMessages = GetChannelMessages(group, newOffsetId, max, client);
if (hasSuperGroupCreatedMessage(finalMessages))
{
var remainingCount = getMessagesCount(finalMessages);
if (max - remainingCount > 0)
{
var chatMessages = GetChatMessagesForChannel(group, Time.GetNowUnixTimestamp(), max - remainingCount, client);
updateChatMessageAddresses(chatMessages, group.Address);
MergeMessagesMessages(finalMessages, chatMessages);
}
}
break;
}
bool queryChat;
bool lastMessageIsExtendedParty;
var offsetId = GetMessagePtsForTime(group, fromTime, out queryChat, out lastMessageIsExtendedParty);
if (queryChat)
{
if (lastMessageIsExtendedParty)
{
finalMessages = GetChannelMessages(group, 1, max, client);
SaveChannelState(uint.Parse(group.Address), 1); //this group was just upgraded to an extended party, we need to explicity save its state otherwise itll be zero
}
var chatMessages = GetChatMessagesForChannel(group, fromTime, max, client);
updateChatMessageAddresses(chatMessages, group.Address);
MergeMessagesMessages(finalMessages, chatMessages);
break;
}
finalMessages = GetChannelMessages(group, offsetId, max, client);
var finalMessagesCount = getMessagesCount(finalMessages);
if (max - finalMessagesCount > 0)
{
var chatMessages = GetChatMessagesForChannel(group, fromTime, max - finalMessagesCount, client);
updateChatMessageAddresses(chatMessages, group.Address);
MergeMessagesMessages(finalMessages, chatMessages);
}
} while (false);
return(finalMessages);
}
else
{
var peer = GetInputPeer(group.Address, group.IsParty, group.IsExtendedParty);
bool queryChat;
bool lastMessageIsExtendedParty;
var offsetId = GetMessagePtsForTime(group, fromTime, out queryChat, out lastMessageIsExtendedParty);
if (offsetId != 1)
{
var response =
TelegramUtils.RunSynchronously(
client.Client.Methods.MessagesGetHistoryAsync(new MessagesGetHistoryArgs
{
Peer = peer,
OffsetId = offsetId + 1,
Limit = (uint)max
}));
return(response);
}
else
{
var response =
TelegramUtils.RunSynchronously(
client.Client.Methods.MessagesGetHistoryAsync(new MessagesGetHistoryArgs
{
Peer = peer,
OffsetDate = (uint)fromTime,
Limit = (uint)max
}));
return(response);
}
}
}
}