import itertools from async_generator import async_generator, yield_ from .users import UserMethods from .. import utils, helpers from ..tl import types, functions, custom class DialogMethods(UserMethods): # region Public methods @async_generator async 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`. """ limit = float('inf') if limit is None else int(limit) if limit == 0: if not _total: return # Special case, get a single dialog and determine count dialogs = await self(functions.messages.GetDialogsRequest( offset_date=offset_date, offset_id=offset_id, offset_peer=offset_peer, limit=1, hash=0 )) _total[0] = getattr(dialogs, 'count', len(dialogs.dialogs)) return seen = set() req = functions.messages.GetDialogsRequest( offset_date=offset_date, offset_id=offset_id, offset_peer=offset_peer, limit=0, hash=0 ) while len(seen) < limit: req.limit = min(limit - len(seen), 100) r = await self(req) if _total: _total[0] = 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 # Happens when there are pinned dialogs if len(r.dialogs) > limit: r.dialogs = r.dialogs[:limit] for d in r.dialogs: if offset_date: date = getattr(messages.get( d.top_message, None), 'date', None) if not date or date.timestamp() > offset_date.timestamp(): continue peer_id = utils.get_peer_id(d.peer) if peer_id not in seen: seen.add(peer_id) cd = custom.Dialog(self, d, entities, messages) if cd.dialog.pts: self._channel_pts[cd.id] = cd.dialog.pts if not ignore_migrated or getattr( cd.entity, 'migrated_to', None) is None: await yield_(cd) if len(r.dialogs) < req.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. break req.offset_date = r.messages[-1].date req.offset_peer = entities[utils.get_peer_id(r.dialogs[-1].peer)] if req.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. break req.offset_id = r.messages[-1].id req.exclude_pinned = True async def get_dialogs(self, *args, **kwargs): """ Same as `iter_dialogs`, but returns a `TotalList ` instead. """ total = [0] kwargs['_total'] = total dialogs = helpers.TotalList() async for x in self.iter_dialogs(*args, **kwargs): dialogs.append(x) dialogs.total = total[0] return dialogs @async_generator async 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. """ r = await self(functions.messages.GetAllDraftsRequest()) for update in r.updates: await yield_(custom.Draft._from_update(self, update)) async def get_drafts(self): """ Same as :meth:`iter_drafts`, but returns a list instead. """ result = [] async for x in self.iter_drafts(): result.append(x) return result def conversation( self, entity, *, timeout=None, total_timeout=60, 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 can override this on each action. By default there is no per-action time limit but there is still a `total_timeout` for the entire conversation. total_timeout (`int` | `float`, optional): The total timeout to use for the whole conversation. 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