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"""
The MIT License (MIT)
Copyright (c) 2015-present Rapptz
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
from typing import Awaitable, TYPE_CHECKING, TypeVar, Optional, Any, Callable, Union, List, Tuple, AsyncIterator, Dict
from .appinfo import InteractionApplication
from .errors import InvalidData
from .utils import _generate_nonce, _get_as_snowflake
from .object import Object
from .commands import _command_factory
from .enums import AppCommandType
__all__ = (
'CommandIterator',
'FakeCommandIterator',
)
if TYPE_CHECKING:
from .user import User
from .message import Message
from .abc import Snowflake, Messageable
from .commands import ApplicationCommand
from .channel import DMChannel
T = TypeVar('T')
OT = TypeVar('OT')
_Func = Callable[[T], Union[OT, Awaitable[OT]]]
OLDEST_OBJECT = Object(id=0)
def _is_fake(item: Union[Messageable, Message]) -> bool: # I hate this too, but <circular imports> and performance exist
try:
item.guild # type: ignore
except AttributeError:
return True
try:
item.channel.me # type: ignore
except AttributeError:
return False
return True
class CommandIterator:
def __new__(cls, *args, **kwargs) -> Union[CommandIterator, FakeCommandIterator]:
if _is_fake(args[0]):
return FakeCommandIterator(*args)
else:
return super().__new__(cls)
def __init__(
self,
item: Union[Messageable, Message],
type: AppCommandType,
query: Optional[str] = None,
limit: Optional[int] = None,
command_ids: Optional[List[int]] = None,
**kwargs,
) -> None:
if query and command_ids:
raise TypeError('Cannot specify both query and command_ids')
if limit is not None and limit <= 0:
raise ValueError('limit must be > 0')
self.item = item
self.channel = None
self.state = item._state
self._tuple = None
self.type = type
_, self.cls = _command_factory(int(type))
self.query = query
self.limit = limit
self.command_ids = command_ids
self.applications: bool = kwargs.get('applications', True)
self.application: Snowflake = kwargs.get('application', None)
self.commands = asyncio.Queue()
self._application_cache: Dict[int, InteractionApplication] = {}
async def _process_args(self) -> Tuple[DMChannel, Optional[str], Optional[Union[User, Message]]]:
item = self.item
if self.type is AppCommandType.user:
channel = await item._get_channel() # type: ignore
if getattr(item, 'bot', None):
item = item
else:
item = None
text = 'user'
elif self.type is AppCommandType.message:
message = self.item
channel = message.channel # type: ignore
text = 'message'
elif self.type is AppCommandType.chat_input:
channel = await item._get_channel() # type: ignore
item = None
text = None
self._process_kwargs(channel) # type: ignore
return channel, text, item # type: ignore
def _process_kwargs(self, channel) -> None:
kwargs = {
'guild_id': channel.guild.id,
'type': self.type.value,
'offset': 0,
}
if self.applications:
kwargs['applications'] = True # Only sent if it's True...
if app := self.application:
kwargs['application'] = app.id
if (query := self.query) is not None:
kwargs['query'] = query
if cmds := self.command_ids:
kwargs['command_ids'] = cmds
self.kwargs = kwargs
async def iterate(self) -> AsyncIterator[ApplicationCommand]:
while True:
if self.commands.empty():
await self.fill_commands()
try:
yield self.commands.get_nowait()
except asyncio.QueueEmpty:
break
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_commands(self) -> None:
if not self._tuple: # Do the required setup
self._tuple = await self._process_args()
if not self._get_retrieve():
return
state = self.state
kwargs = self.kwargs
retrieve = self.retrieve
nonce = _generate_nonce()
def predicate(d):
return d.get('nonce') == nonce
data = None
for _ in range(3):
await state.ws.request_commands(**kwargs, limit=retrieve, nonce=nonce)
try:
data: Optional[Dict[str, Any]] = await asyncio.wait_for(
state.ws.wait_for('guild_application_commands_update', predicate), timeout=3
)
except asyncio.TimeoutError:
pass
if data is None:
raise InvalidData('Didn\'t receive a response from Discord')
cmds = data['application_commands']
if len(cmds) < retrieve:
self.limit = 0
elif self.limit is not None:
self.limit -= retrieve
kwargs['offset'] += retrieve
for app in data.get('applications', []):
self._application_cache[int(app['id'])] = InteractionApplication(state=state, data=app)
for cmd in cmds:
self.commands.put_nowait(self.create_command(cmd))
def create_command(self, data) -> ApplicationCommand:
channel, item, value = self._tuple # type: ignore
if item is not None:
kwargs = {item: value}
else:
kwargs = {}
app_id = _get_as_snowflake(data, 'application_id')
return self.cls(state=channel._state, data=data, channel=channel, application=self._application_cache.get(app_id), **kwargs) # type: ignore
class FakeCommandIterator:
def __init__(
self,
item: Union[User, Message, DMChannel],
type: AppCommandType,
query: Optional[str] = None,
limit: Optional[int] = None,
command_ids: Optional[List[int]] = None,
) -> None:
if query and command_ids:
raise TypeError('Cannot specify both query and command_ids')
if limit is not None and limit <= 0:
raise ValueError('limit must be > 0')
self.item = item
self.channel = None
self._tuple = None
self.type = type
_, self.cls = _command_factory(int(type))
self.query = query
self.limit = limit
self.command_ids = command_ids
self.has_more = False
self.commands = asyncio.Queue()
async def _process_args(self) -> Tuple[DMChannel, Optional[str], Optional[Union[User, Message]]]:
item = self.item
if self.type is AppCommandType.user:
channel = await item._get_channel() # type: ignore
if getattr(item, 'bot', None):
item = item
else:
item = None
text = 'user'
elif self.type is AppCommandType.message:
message = self.item
channel = message.channel # type: ignore
text = 'message'
elif self.type is AppCommandType.chat_input:
channel = await item._get_channel() # type: ignore
item = None
text = None
if not channel.recipient.bot: # type: ignore # Type checker cannot understand this
raise TypeError('User is not a bot')
return channel, text, item # type: ignore
async def iterate(self) -> AsyncIterator[ApplicationCommand]:
while True:
if self.commands.empty():
await self.fill_commands()
try:
yield self.commands.get_nowait()
except asyncio.QueueEmpty:
break
async def fill_commands(self) -> None:
if self.has_more:
return
if not (stuff := self._tuple):
self._tuple = channel, _, _ = await self._process_args()
else:
channel = stuff[0]
limit = self.limit or -1
data = await channel._state.http.get_application_commands(channel.recipient.id)
ids = self.command_ids
query = self.query and self.query.lower()
type = self.type.value
for cmd in data:
if cmd['type'] != type:
continue
if ids:
if not int(cmd['id']) in ids:
continue
if query:
if not query in cmd['name'].lower():
continue
self.commands.put_nowait(self.create_command(cmd))
limit -= 1
if limit == 0:
break
self.has_more = True
def create_command(self, data) -> ApplicationCommand:
channel, item, value = self._tuple # type: ignore
if item is not None:
kwargs = {item: value}
else:
kwargs = {}
return self.cls(state=channel._state, data=data, channel=channel, **kwargs)