stormbrigade_sheriff/sbsheriff/Lib/site-packages/disnake/iterators.py

982 lines
33 KiB
Python

"""
The MIT License (MIT)
Copyright (c) 2015-2021 Rapptz
Copyright (c) 2021-present Disnake Development
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
"""
from __future__ import annotations
import asyncio
import datetime
from typing import (
TYPE_CHECKING,
Any,
AsyncIterator,
Awaitable,
Callable,
Dict,
List,
Optional,
Tuple,
TypeVar,
Union,
cast,
)
from .audit_logs import AuditLogEntry
from .bans import BanEntry
from .errors import NoMoreItems
from .object import Object
from .utils import maybe_coroutine, snowflake_time, time_snowflake
__all__ = (
"ReactionIterator",
"HistoryIterator",
"BanIterator",
"AuditLogIterator",
"GuildIterator",
"MemberIterator",
"GuildScheduledEventUserIterator",
)
if TYPE_CHECKING:
from .abc import Messageable, Snowflake
from .audit_logs import AuditLogEntry
from .guild import Guild
from .guild_scheduled_event import GuildScheduledEvent
from .member import Member
from .message import Message
from .state import ConnectionState
from .threads import Thread
from .types.audit_log import (
AuditLog as AuditLogPayload,
AuditLogEntry as AuditLogEntryPayload,
AuditLogEvent,
)
from .types.guild import Ban as BanPayload, Guild as GuildPayload
from .types.guild_scheduled_event import (
GuildScheduledEventUser as GuildScheduledEventUserPayload,
)
from .types.message import Message as MessagePayload
from .types.threads import Thread as ThreadPayload
from .types.user import PartialUser as PartialUserPayload, User as UserPayload
from .user import User
T = TypeVar("T")
OT = TypeVar("OT")
_Func = Callable[[T], Union[OT, Awaitable[OT]]]
OLDEST_OBJECT = Object(id=0)
class _AsyncIterator(AsyncIterator[T]):
__slots__ = ()
async def next(self) -> T:
raise NotImplementedError
def get(self, **attrs: Any) -> Awaitable[Optional[T]]:
def predicate(elem: T):
for attr, val in attrs.items():
nested = attr.split("__")
obj = elem
for attribute in nested:
obj = getattr(obj, attribute)
if obj != val:
return False
return True
return self.find(predicate)
async def find(self, predicate: _Func[T, bool]) -> Optional[T]:
while True:
try:
elem = await self.next()
except NoMoreItems:
return None
ret = await maybe_coroutine(predicate, elem)
if ret:
return elem
def chunk(self, max_size: int) -> _ChunkedAsyncIterator[T]:
if max_size <= 0:
raise ValueError("async iterator chunk sizes must be greater than 0.")
return _ChunkedAsyncIterator(self, max_size)
def map(self, func: _Func[T, OT]) -> _MappedAsyncIterator[OT]:
return _MappedAsyncIterator(self, func)
def filter(self, predicate: _Func[T, bool]) -> _FilteredAsyncIterator[T]:
return _FilteredAsyncIterator(self, predicate)
async def flatten(self) -> List[T]:
return [element async for element in self]
async def __anext__(self) -> T:
try:
return await self.next()
except NoMoreItems:
raise StopAsyncIteration()
def _identity(x):
return x
class _ChunkedAsyncIterator(_AsyncIterator[List[T]]):
def __init__(self, iterator, max_size):
self.iterator = iterator
self.max_size = max_size
async def next(self) -> List[T]:
ret: List[T] = []
n = 0
while n < self.max_size:
try:
item = await self.iterator.next()
except NoMoreItems:
if ret:
return ret
raise
else:
ret.append(item)
n += 1
return ret
class _MappedAsyncIterator(_AsyncIterator[T]):
def __init__(self, iterator, func):
self.iterator = iterator
self.func = func
async def next(self) -> T:
# this raises NoMoreItems and will propagate appropriately
item = await self.iterator.next()
return await maybe_coroutine(self.func, item)
class _FilteredAsyncIterator(_AsyncIterator[T]):
def __init__(self, iterator, predicate):
self.iterator = iterator
if predicate is None:
predicate = _identity
self.predicate = predicate
async def next(self) -> T:
getter = self.iterator.next
pred = self.predicate
while True:
# propagate NoMoreItems similar to _MappedAsyncIterator
item = await getter()
ret = await maybe_coroutine(pred, item)
if ret:
return item
class ReactionIterator(_AsyncIterator[Union["User", "Member"]]):
def __init__(self, message, emoji, limit=100, after=None):
self.message = message
self.limit = limit
self.after = after
state = message._state
self.getter = state.http.get_reaction_users
self.state = state
self.emoji = emoji
self.guild = message.guild
self.channel_id = message.channel.id
self.users = asyncio.Queue()
async def next(self) -> Union[User, Member]:
if self.users.empty():
await self.fill_users()
try:
return self.users.get_nowait()
except asyncio.QueueEmpty:
raise NoMoreItems()
async def fill_users(self):
if self.limit > 0:
retrieve = min(self.limit, 100)
after = self.after.id if self.after else None
data: List[PartialUserPayload] = await self.getter(
self.channel_id, self.message.id, self.emoji, retrieve, after=after
)
if data:
self.limit -= retrieve
self.after = Object(id=int(data[-1]["id"]))
for element in reversed(data):
if self.guild is None or isinstance(self.guild, Object):
await self.users.put(self.state.create_user(data=element))
else:
member_id = int(element["id"])
member = self.guild.get_member(member_id)
if member is not None:
await self.users.put(member)
else:
await self.users.put(self.state.create_user(data=element))
class HistoryIterator(_AsyncIterator["Message"]):
"""Iterator for receiving a channel's message history.
The messages endpoint has two behaviours we care about here:
If ``before`` is specified, the messages endpoint returns the `limit`
newest messages before ``before``, sorted with newest first. For filling over
100 messages, update the ``before`` parameter to the oldest message received.
Messages will be returned in order by time.
If ``after`` is specified, it returns the ``limit`` oldest messages after
``after``, sorted with newest first. For filling over 100 messages, update the
``after`` parameter to the newest message received. If messages are not
reversed, they will be out of order (99-0, 199-100, so on)
A note that if both ``before`` and ``after`` are specified, ``before`` is ignored by the
messages endpoint.
Parameters
----------
messageable: :class:`abc.Messageable`
Messageable class to retrieve message history from.
limit: :class:`int`
Maximum number of messages to retrieve
before: Optional[Union[:class:`abc.Snowflake`, :class:`datetime.datetime`]]
Message before which all messages must be.
after: Optional[Union[:class:`abc.Snowflake`, :class:`datetime.datetime`]]
Message after which all messages must be.
around: Optional[Union[:class:`abc.Snowflake`, :class:`datetime.datetime`]]
Message around which all messages must be. Limit max 101. Note that if
limit is an even number, this will return at most limit+1 messages.
oldest_first: Optional[:class:`bool`]
If set to ``True``, return messages in oldest->newest order. Defaults to
``True`` if `after` is specified, otherwise ``False``.
"""
def __init__(
self,
messageable: Messageable,
limit: Optional[int] = 100,
before: Optional[Union[Snowflake, datetime.datetime]] = None,
after: Optional[Union[Snowflake, datetime.datetime]] = None,
around: Optional[Union[Snowflake, datetime.datetime]] = None,
oldest_first: bool = None,
):
if isinstance(before, datetime.datetime):
before = Object(id=time_snowflake(before, high=False))
if isinstance(after, datetime.datetime):
after = Object(id=time_snowflake(after, high=True))
if isinstance(around, datetime.datetime):
around = Object(id=time_snowflake(around))
if oldest_first is None:
self.reverse = after is not None
else:
self.reverse = oldest_first
self.messageable = messageable
self.limit = limit
self.before = before
self.after = after or OLDEST_OBJECT
self.around = around
self._filter: Optional[Callable[[MessagePayload], bool]] = None
self.state = self.messageable._state
self.logs_from = self.state.http.logs_from
self.messages = asyncio.Queue()
if self.around:
if self.limit is None:
raise ValueError("history does not support around with limit=None")
if self.limit > 101:
raise ValueError("history max limit 101 when specifying around parameter")
elif self.limit == 101:
self.limit = 100 # Thanks Discord
self._retrieve_messages = self._retrieve_messages_around_strategy # type: ignore
if self.before and self.after:
self._filter = lambda m: self.after.id < int(m["id"]) < self.before.id # type: ignore
elif self.before:
self._filter = lambda m: int(m["id"]) < self.before.id # type: ignore
elif self.after:
self._filter = lambda m: self.after.id < int(m["id"])
else:
if self.reverse:
self._retrieve_messages = self._retrieve_messages_after_strategy # type: ignore
if self.before:
self._filter = lambda m: int(m["id"]) < self.before.id # type: ignore
else:
self._retrieve_messages = self._retrieve_messages_before_strategy # type: ignore
if self.after and self.after != OLDEST_OBJECT:
self._filter = lambda m: int(m["id"]) > self.after.id
async def next(self) -> Message:
if self.messages.empty():
await self.fill_messages()
try:
return self.messages.get_nowait()
except asyncio.QueueEmpty:
raise NoMoreItems()
def _get_retrieve(self):
l = self.limit
if l is None or l > 100:
r = 100
else:
r = l
self.retrieve = r
return r > 0
async def fill_messages(self):
if not hasattr(self, "channel"):
# do the required set up
channel = await self.messageable._get_channel()
self.channel = channel
if self._get_retrieve():
data = await self._retrieve_messages(self.retrieve)
if len(data) < 100:
self.limit = 0 # terminate the infinite loop
if self.reverse:
data = reversed(data)
if self._filter:
data = filter(self._filter, data)
channel = self.channel
for element in data:
await self.messages.put(self.state.create_message(channel=channel, data=element))
async def _retrieve_messages(self, retrieve) -> List[MessagePayload]:
"""Retrieve messages and update next parameters."""
raise NotImplementedError
async def _retrieve_messages_before_strategy(self, retrieve):
"""Retrieve messages using before parameter."""
before = self.before.id if self.before else None
data: List[MessagePayload] = await self.logs_from(self.channel.id, retrieve, before=before)
if len(data):
if self.limit is not None:
self.limit -= retrieve
self.before = Object(id=int(data[-1]["id"]))
return data
async def _retrieve_messages_after_strategy(self, retrieve):
"""Retrieve messages using after parameter."""
after = self.after.id if self.after else None
data: List[MessagePayload] = await self.logs_from(self.channel.id, retrieve, after=after)
if len(data):
if self.limit is not None:
self.limit -= retrieve
self.after = Object(id=int(data[0]["id"]))
return data
async def _retrieve_messages_around_strategy(self, retrieve):
"""Retrieve messages using around parameter."""
if self.around:
around = self.around.id if self.around else None
data: List[MessagePayload] = await self.logs_from(
self.channel.id, retrieve, around=around
)
self.around = None
return data
return []
class BanIterator(_AsyncIterator["BanEntry"]):
"""Iterator for receiving a guild's bans.
The bans endpoint has two behaviours we care about here:
If ``before`` is specified, the bans endpoint returns the ``limit``
bans with user ids before ``before``, sorted with the oldest first. For filling over
1000 bans, update the ``before`` parameter to the newest user received.
If ``after`` is specified, it returns the ``limit`` bans with user ids after
``after``, sorted with the oldest first. For filling over 1000 bans, update the
``after`` parameter to the oldest user received.
A note that if both ``before`` and ``after`` are specified, ``after`` is ignored by the
bans endpoint.
Parameters
-----------
guild: :class:`~disnake.Guild`
The guild to get bans from.
limit: Optional[:class:`int`]
Maximum number of bans to retrieve.
before: Optional[:class:`abc.Snowflake`]
Object before which all bans must be.
after: Optional[:class:`abc.Snowflake`]
Object after which all bans must be.
"""
def __init__(
self,
guild: Guild,
limit: Optional[int] = None,
before: Optional[Snowflake] = None,
after: Optional[Snowflake] = None,
):
self.guild = guild
self.limit = limit
self.before = before
self.after = after or OLDEST_OBJECT
self.state = self.guild._state
self.get_bans = self.state.http.get_bans
self.bans = asyncio.Queue()
self._filter: Optional[Callable[[BanPayload], bool]] = None
if self.before:
self._retrieve_bans = self._retrieve_bans_before_strategy
if self.after != OLDEST_OBJECT:
self._filter = lambda b: int(b["user"]["id"]) > self.after.id
else:
self._retrieve_bans = self._retrieve_bans_after_strategy
async def next(self) -> BanEntry:
if self.bans.empty():
await self.fill_bans()
try:
return self.bans.get_nowait()
except asyncio.QueueEmpty:
raise NoMoreItems()
def _get_retrieve(self) -> bool:
self.retrieve = min(self.limit, 1000) if self.limit is not None else 1000
return self.retrieve > 0
async def fill_bans(self):
if self._get_retrieve():
data = await self._retrieve_bans(self.retrieve)
if len(data) < 1000:
self.limit = 0 # terminate the infinite loop
if self._filter:
data = filter(self._filter, data)
for element in data:
await self.bans.put(
BanEntry(
user=self.state.create_user(data=element["user"]),
reason=element["reason"],
)
)
async def _retrieve_bans_before_strategy(self, retrieve: int) -> List[BanPayload]:
"""Retrieve bans using before parameter."""
before = self.before.id if self.before else None
data: List[BanPayload] = await self.get_bans(self.guild.id, retrieve, before=before)
if len(data):
if self.limit is not None:
self.limit -= len(data)
self.before = Object(id=int(data[0]["user"]["id"]))
return data
async def _retrieve_bans_after_strategy(self, retrieve: int) -> List[BanPayload]:
"""Retrieve bans using after parameter."""
after = self.after.id if self.after else None
data: List[BanPayload] = await self.get_bans(self.guild.id, retrieve, after=after)
if len(data):
if self.limit is not None:
self.limit -= len(data)
self.after = Object(id=int(data[-1]["user"]["id"]))
return data
class AuditLogIterator(_AsyncIterator["AuditLogEntry"]):
def __init__(
self,
guild: Guild,
limit: int = None,
before: Optional[Union[Snowflake, datetime.datetime]] = None,
after: Optional[Union[Snowflake, datetime.datetime]] = None,
user_id: Optional[int] = None,
action_type: Optional[AuditLogEvent] = None,
):
if isinstance(before, datetime.datetime):
before = Object(id=time_snowflake(before, high=False))
if isinstance(after, datetime.datetime):
after = Object(id=time_snowflake(after, high=True))
self.limit: Optional[int] = limit
self.before: Optional[Snowflake] = before
self.after: Snowflake = after or OLDEST_OBJECT
self.user_id: Optional[int] = user_id
self.action_type: Optional[AuditLogEvent] = action_type
self.guild = guild
self._state = guild._state
self.request = guild._state.http.get_audit_logs
self._users: Dict[int, User] = {}
self.entries: asyncio.Queue[AuditLogEntry] = asyncio.Queue()
self._filter: Optional[Callable[[AuditLogEntryPayload], bool]] = None
if self.after and self.after != OLDEST_OBJECT:
self._filter = lambda e: int(e["id"]) > self.after.id
async def _retrieve_data(
self, retrieve: int
) -> Tuple[List[UserPayload], List[AuditLogEntryPayload]]:
before = self.before.id if self.before else None
data: AuditLogPayload = await self.request(
self.guild.id,
limit=retrieve,
user_id=self.user_id,
action_type=self.action_type,
before=before,
)
entries = data.get("audit_log_entries", [])
if entries:
if self.limit is not None:
self.limit -= retrieve
self.before = Object(id=int(entries[-1]["id"]))
return data.get("users", []), entries
async def next(self) -> AuditLogEntry:
if self.entries.empty():
await self._fill()
try:
return self.entries.get_nowait()
except asyncio.QueueEmpty:
raise NoMoreItems()
def _get_retrieve(self):
l = self.limit
if l is None or l > 100:
r = 100
else:
r = l
self.retrieve = r
return r > 0
async def _fill(self):
if self._get_retrieve():
users, data = await self._retrieve_data(self.retrieve)
if len(data) < 100:
self.limit = 0 # terminate the infinite loop
if self._filter:
data = filter(self._filter, data)
for user in users:
if int(user["id"]) in self._users:
continue
u = self._state.create_user(data=user)
self._users[u.id] = u
for element in data:
# TODO: remove this if statement later
if element["action_type"] is None:
continue
await self.entries.put(
AuditLogEntry(data=element, users=self._users, guild=self.guild)
)
class GuildIterator(_AsyncIterator["Guild"]):
"""Iterator for receiving the client's guilds.
The guilds endpoint has the same two behaviours as described
in :class:`HistoryIterator`:
If ``before`` is specified, the guilds endpoint returns the ``limit``
newest guilds before ``before``, sorted with newest first. For filling over
100 guilds, update the ``before`` parameter to the oldest guild received.
Guilds will be returned in order by time.
If `after` is specified, it returns the ``limit`` oldest guilds after ``after``,
sorted with newest first. For filling over 100 guilds, update the ``after``
parameter to the newest guild received, If guilds are not reversed, they
will be out of order (99-0, 199-100, so on)
Not that if both ``before`` and ``after`` are specified, ``before`` is ignored by the
guilds endpoint.
Parameters
----------
bot: :class:`disnake.Client`
The client to retrieve the guilds from.
limit: :class:`int`
Maximum number of guilds to retrieve.
before: Optional[Union[:class:`abc.Snowflake`, :class:`datetime.datetime`]]
Object before which all guilds must be.
after: Optional[Union[:class:`abc.Snowflake`, :class:`datetime.datetime`]]
Object after which all guilds must be.
"""
def __init__(self, bot, limit, before=None, after=None):
if isinstance(before, datetime.datetime):
before = Object(id=time_snowflake(before, high=False))
if isinstance(after, datetime.datetime):
after = Object(id=time_snowflake(after, high=True))
self.bot = bot
self.limit = limit
self.before = before
self.after = after
self._filter = None
self.state = self.bot._connection
self.get_guilds = self.bot.http.get_guilds
self.guilds = asyncio.Queue()
if self.before:
self.reverse = True
self._retrieve_guilds = self._retrieve_guilds_before_strategy # type: ignore
if self.after:
self._filter = lambda m: int(m["id"]) > self.after.id # type: ignore
else:
self.reverse = False
self._retrieve_guilds = self._retrieve_guilds_after_strategy # type: ignore
async def next(self) -> Guild:
if self.guilds.empty():
await self.fill_guilds()
try:
return self.guilds.get_nowait()
except asyncio.QueueEmpty:
raise NoMoreItems()
def _get_retrieve(self):
l = self.limit
if l is None or l > 200:
r = 200
else:
r = l
self.retrieve = r
return r > 0
def create_guild(self, data):
from .guild import Guild
return Guild(state=self.state, data=data)
async def fill_guilds(self):
if self._get_retrieve():
data = await self._retrieve_guilds(self.retrieve)
if len(data) < 200:
self.limit = 0
if self.reverse:
data = reversed(data)
if self._filter:
data = filter(self._filter, data)
for element in data:
await self.guilds.put(self.create_guild(element))
async def _retrieve_guilds(self, retrieve) -> List[Guild]:
"""Retrieve guilds and update next parameters."""
raise NotImplementedError
async def _retrieve_guilds_before_strategy(self, retrieve):
"""Retrieve guilds using before parameter."""
before = self.before.id if self.before else None
data: List[GuildPayload] = await self.get_guilds(retrieve, before=before)
if len(data):
if self.limit is not None:
self.limit -= retrieve
self.before = Object(id=int(data[0]["id"]))
return data
async def _retrieve_guilds_after_strategy(self, retrieve):
"""Retrieve guilds using after parameter."""
after = self.after.id if self.after else None
data: List[GuildPayload] = await self.get_guilds(retrieve, after=after)
if len(data):
if self.limit is not None:
self.limit -= retrieve
self.after = Object(id=int(data[-1]["id"]))
return data
class MemberIterator(_AsyncIterator["Member"]):
def __init__(self, guild, limit=1000, after=None):
if isinstance(after, datetime.datetime):
after = Object(id=time_snowflake(after, high=True))
self.guild = guild
self.limit = limit
self.after = after or OLDEST_OBJECT
self.state = self.guild._state
self.get_members = self.state.http.get_members
self.members = asyncio.Queue()
async def next(self) -> Member:
if self.members.empty():
await self.fill_members()
try:
return self.members.get_nowait()
except asyncio.QueueEmpty:
raise NoMoreItems()
def _get_retrieve(self):
l = self.limit
if l is None or l > 1000:
r = 1000
else:
r = l
self.retrieve = r
return r > 0
async def fill_members(self):
if self._get_retrieve():
after = self.after.id if self.after else None
data = await self.get_members(self.guild.id, self.retrieve, after)
if not data:
# no data, terminate
return
if len(data) < 1000:
self.limit = 0 # terminate loop
self.after = Object(id=int(data[-1]["user"]["id"]))
for element in reversed(data):
await self.members.put(self.create_member(element))
def create_member(self, data):
from .member import Member
return Member(data=data, guild=self.guild, state=self.state)
class ArchivedThreadIterator(_AsyncIterator["Thread"]):
def __init__(
self,
channel_id: int,
guild: Guild,
limit: Optional[int],
joined: bool,
private: bool,
before: Optional[Union[Snowflake, datetime.datetime]] = None,
):
self.channel_id = channel_id
self.guild = guild
self.limit = limit
self.joined = joined
self.private = private
self.http = guild._state.http
if joined and not private:
raise ValueError("Cannot iterate over joined public archived threads")
self.before: Optional[str]
if before is None:
self.before = None
elif isinstance(before, datetime.datetime):
if joined:
self.before = str(time_snowflake(before, high=False))
else:
self.before = before.isoformat()
else:
if joined:
self.before = str(before.id)
else:
self.before = snowflake_time(before.id).isoformat()
self.update_before: Callable[[ThreadPayload], str] = self.get_archive_timestamp
if joined:
self.endpoint = self.http.get_joined_private_archived_threads
self.update_before = self.get_thread_id
elif private:
self.endpoint = self.http.get_private_archived_threads
else:
self.endpoint = self.http.get_public_archived_threads
self.queue: asyncio.Queue[Thread] = asyncio.Queue()
self.has_more: bool = True
async def next(self) -> Thread:
if self.queue.empty():
await self.fill_queue()
try:
return self.queue.get_nowait()
except asyncio.QueueEmpty:
raise NoMoreItems()
@staticmethod
def get_archive_timestamp(data: ThreadPayload) -> str:
return data["thread_metadata"]["archive_timestamp"]
@staticmethod
def get_thread_id(data: ThreadPayload) -> str:
return data["id"] # type: ignore
async def fill_queue(self) -> None:
if not self.has_more:
raise NoMoreItems()
limit = 50 if self.limit is None else max(self.limit, 50)
data = await self.endpoint(self.channel_id, before=self.before, limit=limit)
# This stuff is obviously WIP because 'members' is always empty
threads: List[ThreadPayload] = data.get("threads", [])
for d in reversed(threads):
self.queue.put_nowait(self.create_thread(d))
self.has_more = data.get("has_more", False)
if self.limit is not None:
self.limit -= len(threads)
if self.limit <= 0:
self.has_more = False
if self.has_more:
self.before = self.update_before(threads[-1])
def create_thread(self, data: ThreadPayload) -> Thread:
from .threads import Thread
return Thread(guild=self.guild, state=self.guild._state, data=data)
class GuildScheduledEventUserIterator(_AsyncIterator[Union["User", "Member"]]):
def __init__(
self,
event: GuildScheduledEvent,
limit: Optional[int],
with_members: bool,
before: Optional[Snowflake],
after: Optional[Snowflake],
):
self.event: GuildScheduledEvent = event
self.limit: Optional[int] = limit
self.with_members: bool = with_members
self.before: Optional[Snowflake] = before
self.after: Optional[Snowflake] = after
self.state: ConnectionState = event._state
self.get_event_users = self.state.http.get_guild_scheduled_event_users
self.users = asyncio.Queue()
self._filter: Optional[Callable[[GuildScheduledEventUserPayload], bool]] = None
if self.before is not None:
self._strategy = self._before_strategy
if self.after is not None:
self._filter = lambda u: int(u["user"]["id"]) > cast("Snowflake", self.after).id
# reverse if using `before` strategy, since chunks are always received in
# ascending order (200-299, 100-199, 0-99) regardless of before/after
self.reverse = True
else:
self._strategy = self._after_strategy
self.reverse = False
async def next(self) -> Message:
if self.users.empty():
await self.fill_users()
try:
return self.users.get_nowait()
except asyncio.QueueEmpty:
raise NoMoreItems()
def _get_retrieve(self) -> bool:
l = self.limit
if l is None or l > 100:
r = 100
else:
r = l
self.retrieve: int = r
return r > 0
def create_user(self, data: GuildScheduledEventUserPayload) -> Union[User, Member]:
from .member import Member
user_data = data["user"]
member_data = data.get("member")
if member_data is not None and (guild := self.event.guild) is not None:
return guild.get_member(int(user_data["id"])) or Member(
data=member_data, user_data=user_data, guild=guild, state=self.state
)
else:
return self.state.store_user(data["user"])
async def fill_users(self) -> None:
if not self._get_retrieve():
return
data = await self._strategy(self.retrieve)
if len(data) < 100:
self.limit = 0 # terminate loop
if self.reverse:
data = reversed(data)
if self._filter:
data = filter(self._filter, data)
for user in data:
await self.users.put(self.create_user(user))
async def _before_strategy(self, retrieve: int) -> List[GuildScheduledEventUserPayload]:
before = self.before.id if self.before else None
data = await self.get_event_users(
self.event.guild_id,
self.event.id,
limit=retrieve,
with_member=self.with_members,
before=before,
)
if len(data):
if self.limit is not None:
self.limit -= retrieve
# users are always returned in ascending order
self.before = Object(id=int(data[0]["user"]["id"]))
return data
async def _after_strategy(self, retrieve: int) -> List[GuildScheduledEventUserPayload]:
after = self.after.id if self.after else None
data = await self.get_event_users(
self.event.guild_id,
self.event.id,
limit=retrieve,
with_member=self.with_members,
after=after,
)
if len(data):
if self.limit is not None:
self.limit -= retrieve
self.after = Object(id=int(data[-1]["user"]["id"]))
return data