import itertools from .users import UserMethods from .. import utils from ..requestiter import RequestIter from ..tl import types, functions, custom class _DialogsIter(RequestIter): async def _init( self, offset_date, offset_id, offset_peer, ignore_migrated ): self.request = functions.messages.GetDialogsRequest( offset_date=offset_date, offset_id=offset_id, offset_peer=offset_peer, limit=1, hash=0 ) if self.limit == 0: # Special case, get a single dialog and determine count dialogs = await self.client(self.request) self.total = getattr(dialogs, 'count', len(dialogs.dialogs)) raise StopAsyncIteration self.seen = set() self.offset_date = offset_date self.ignore_migrated = ignore_migrated async def _load_next_chunk(self): result = [] self.request.limit = min(self.left, 100) r = await self.client(self.request) self.total = getattr(r, 'count', len(r.dialogs)) entities = {utils.get_peer_id(x): x for x in itertools.chain(r.users, r.chats)} messages = {} for m in r.messages: m._finish_init(self, entities, None) messages[m.id] = m for d in r.dialogs: # We check the offset date here because Telegram may ignore it if self.offset_date: date = getattr(messages.get( d.top_message, None), 'date', None) if not date or date.timestamp() > self.offset_date.timestamp(): continue peer_id = utils.get_peer_id(d.peer) if peer_id not in self.seen: self.seen.add(peer_id) cd = custom.Dialog(self, d, entities, messages) if cd.dialog.pts: self.client._channel_pts[cd.id] = cd.dialog.pts if not self.ignore_migrated or getattr( cd.entity, 'migrated_to', None) is None: result.append(cd) if len(r.dialogs) < self.request.limit\ or not isinstance(r, types.messages.DialogsSlice): # Less than we requested means we reached the end, or # we didn't get a DialogsSlice which means we got all. self.left = len(result) self.request.offset_date = r.messages[-1].date self.request.offset_peer =\ entities[utils.get_peer_id(r.dialogs[-1].peer)] if self.request.offset_id == r.messages[-1].id: # In some very rare cases this will get stuck in an infinite # loop, where the offsets will get reused over and over. If # the new offset is the same as the one before, break already. self.left = len(result) self.request.offset_id = r.messages[-1].id self.request.exclude_pinned = True return result class _DraftsIter(RequestIter): async def _init(self, **kwargs): r = await self.client(functions.messages.GetAllDraftsRequest()) self.buffer = [custom.Draft._from_update(self.client, u) for u in r.updates] async def _load_next_chunk(self): return [] class DialogMethods(UserMethods): # region Public methods def iter_dialogs( self, limit=None, *, offset_date=None, offset_id=0, offset_peer=types.InputPeerEmpty(), ignore_migrated=False, _total=None): """ Returns an iterator over the dialogs, yielding 'limit' at most. Dialogs are the open "chats" or conversations with other people, groups you have joined, or channels you are subscribed to. Args: limit (`int` | `None`): How many dialogs to be retrieved as maximum. Can be set to ``None`` to retrieve all dialogs. Note that this may take whole minutes if you have hundreds of dialogs, as Telegram will tell the library to slow down through a ``FloodWaitError``. offset_date (`datetime`, optional): The offset date to be used. offset_id (`int`, optional): The message ID to be used as an offset. offset_peer (:tl:`InputPeer`, optional): The peer to be used as an offset. ignore_migrated (`bool`, optional): Whether :tl:`Chat` that have ``migrated_to`` a :tl:`Channel` should be included or not. By default all the chats in your dialogs are returned, but setting this to ``True`` will hide them in the same way official applications do. _total (`list`, optional): A single-item list to pass the total parameter by reference. Yields: Instances of `telethon.tl.custom.dialog.Dialog`. """ return _DialogsIter( self, limit, offset_date=offset_date, offset_id=offset_id, offset_peer=offset_peer, ignore_migrated=ignore_migrated ) async def get_dialogs(self, *args, **kwargs): """ Same as `iter_dialogs`, but returns a `TotalList ` instead. """ return await self.iter_dialogs(*args, **kwargs).collect() def iter_drafts(self): """ Iterator over all open draft messages. Instances of `telethon.tl.custom.draft.Draft` are yielded. You can call `telethon.tl.custom.draft.Draft.set_message` to change the message or `telethon.tl.custom.draft.Draft.delete` among other things. """ # TODO Passing a limit here makes no sense return _DraftsIter(self, None) async def get_drafts(self): """ Same as :meth:`iter_drafts`, but returns a list instead. """ return await self.iter_drafts().collect() def conversation( self, entity, *, timeout=60, total_timeout=None, max_messages=100, exclusive=True, replies_are_responses=True): """ Creates a `Conversation ` with the given entity so you can easily send messages and await for responses or other reactions. Refer to its documentation for more. Args: entity (`entity`): The entity with which a new conversation should be opened. timeout (`int` | `float`, optional): The default timeout *per action* to be used. You may also override this timeout on a per-method basis. By default each action can take up to 60 seconds (the value of this timeout). total_timeout (`int` | `float`, optional): The total timeout to use for the whole conversation. This takes priority over per-action timeouts. After these many seconds pass, subsequent actions will result in ``asyncio.TimeoutError``. max_messages (`int`, optional): The maximum amount of messages this conversation will remember. After these many messages arrive in the specified chat, subsequent actions will result in ``ValueError``. exclusive (`bool`, optional): By default, conversations are exclusive within a single chat. That means that while a conversation is open in a chat, you can't open another one in the same chat, unless you disable this flag. If you try opening an exclusive conversation for a chat where it's already open, it will raise ``AlreadyInConversationError``. replies_are_responses (`bool`, optional): Whether replies should be treated as responses or not. If the setting is enabled, calls to `conv.get_response ` and a subsequent call to `conv.get_reply ` will return different messages, otherwise they may return the same message. Consider the following scenario with one outgoing message, 1, and two incoming messages, the second one replying:: Hello! <1 2> (reply to 1) Hi! 3> (reply to 1) How are you? And the following code: .. code-block:: python async with client.conversation(chat) as conv: msg1 = await conv.send_message('Hello!') msg2 = await conv.get_response() msg3 = await conv.get_reply() With the setting enabled, ``msg2`` will be ``'Hi!'`` and ``msg3`` be ``'How are you?'`` since replies are also responses, and a response was already returned. With the setting disabled, both ``msg2`` and ``msg3`` will be ``'Hi!'`` since one is a response and also a reply. Returns: A `Conversation `. """ return custom.Conversation( self, entity, timeout=timeout, total_timeout=total_timeout, max_messages=max_messages, exclusive=exclusive, replies_are_responses=replies_are_responses ) # endregion