"""
The MIT License (MIT)
Copyright (c) 2021-present Pycord 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 inspect
from enum import Enum
from typing import TYPE_CHECKING, Literal, Optional, Type, Union
from ..abc import GuildChannel, Mentionable
from ..channel import (
CategoryChannel,
DMChannel,
ForumChannel,
StageChannel,
TextChannel,
Thread,
VoiceChannel,
)
from ..enums import ChannelType
from ..enums import Enum as DiscordEnum
from ..enums import SlashCommandOptionType
from ..utils import MISSING
if TYPE_CHECKING:
from ..ext.commands import Converter
from ..member import Member
from ..message import Attachment
from ..role import Role
from ..user import User
InputType = Union[
Type[str],
Type[bool],
Type[int],
Type[float],
Type[GuildChannel],
Type[Thread],
Type[Member],
Type[User],
Type[Attachment],
Type[Role],
Type[Mentionable],
SlashCommandOptionType,
Converter,
Type[Converter],
Type[Enum],
Type[DiscordEnum],
]
__all__ = (
"ThreadOption",
"Option",
"OptionChoice",
"option",
)
CHANNEL_TYPE_MAP = {
TextChannel: ChannelType.text,
VoiceChannel: ChannelType.voice,
StageChannel: ChannelType.stage_voice,
CategoryChannel: ChannelType.category,
Thread: ChannelType.public_thread,
ForumChannel: ChannelType.forum,
DMChannel: ChannelType.private,
}
[docs]class ThreadOption:
"""Represents a class that can be passed as the ``input_type`` for an :class:`Option` class.
.. versionadded:: 2.0
Parameters
----------
thread_type: Literal["public", "private", "news"]
The thread type to expect for this options input.
"""
def __init__(self, thread_type: Literal["public", "private", "news"]):
type_map = {
"public": ChannelType.public_thread,
"private": ChannelType.private_thread,
"news": ChannelType.news_thread,
}
self._type = type_map[thread_type]
[docs]class Option:
"""Represents a selectable option for a slash command.
Attributes
----------
input_type: Union[Type[:class:`str`], Type[:class:`bool`], Type[:class:`int`], Type[:class:`float`], Type[:class:`.abc.GuildChannel`], Type[:class:`Thread`], Type[:class:`Member`], Type[:class:`User`], Type[:class:`Attachment`], Type[:class:`Role`], Type[:class:`.abc.Mentionable`], :class:`SlashCommandOptionType`, Type[:class:`.ext.commands.Converter`], Type[:class:`enums.Enum`], Type[:class:`Enum`]]
The type of input that is expected for this option. This can be a :class:`SlashCommandOptionType`,
an associated class, a channel type, a :class:`Converter`, a converter class or an :class:`enum.Enum`.
name: :class:`str`
The name of this option visible in the UI.
Inherits from the variable name if not provided as a parameter.
description: Optional[:class:`str`]
The description of this option.
Must be 100 characters or fewer.
choices: Optional[List[Union[:class:`Any`, :class:`OptionChoice`]]]
The list of available choices for this option.
Can be a list of values or :class:`OptionChoice` objects (which represent a name:value pair).
If provided, the input from the user must match one of the choices in the list.
required: Optional[:class:`bool`]
Whether this option is required.
default: Optional[:class:`Any`]
The default value for this option. If provided, ``required`` will be considered ``False``.
min_value: Optional[:class:`int`]
The minimum value that can be entered.
Only applies to Options with an :attr:`.input_type` of :class:`int` or :class:`float`.
max_value: Optional[:class:`int`]
The maximum value that can be entered.
Only applies to Options with an :attr:`.input_type` of :class:`int` or :class:`float`.
min_length: Optional[:class:`int`]
The minimum length of the string that can be entered. Must be between 0 and 6000 (inclusive).
Only applies to Options with an :attr:`input_type` of :class:`str`.
max_length: Optional[:class:`int`]
The maximum length of the string that can be entered. Must be between 1 and 6000 (inclusive).
Only applies to Options with an :attr:`input_type` of :class:`str`.
autocomplete: Optional[Callable[[:class:`.AutocompleteContext`], Awaitable[Union[Iterable[:class:`.OptionChoice`], Iterable[:class:`str`], Iterable[:class:`int`], Iterable[:class:`float`]]]]]
The autocomplete handler for the option. Accepts a callable (sync or async)
that takes a single argument of :class:`AutocompleteContext`.
The callable must return an iterable of :class:`str` or :class:`OptionChoice`.
Alternatively, :func:`discord.utils.basic_autocomplete` may be used in place of the callable.
.. note::
Does not validate the input value against the autocomplete results.
channel_types: list[:class:`discord.ChannelType`] | None
A list of channel types that can be selected in this option.
Only applies to Options with an :attr:`input_type` of :class:`discord.SlashCommandOptionType.channel`.
If this argument is used, :attr:`input_type` will be ignored.
name_localizations: Dict[:class:`str`, :class:`str`]
The name localizations for this option. The values of this should be ``"locale": "name"``.
See `here <https://discord.com/developers/docs/reference#locales>`_ for a list of valid locales.
description_localizations: Dict[:class:`str`, :class:`str`]
The description localizations for this option. The values of this should be ``"locale": "description"``.
See `here <https://discord.com/developers/docs/reference#locales>`_ for a list of valid locales.
Examples
--------
Basic usage: ::
@bot.slash_command(guild_ids=[...])
async def hello(
ctx: discord.ApplicationContext,
name: Option(str, "Enter your name"),
age: Option(int, "Enter your age", min_value=1, max_value=99, default=18)
# passing the default value makes an argument optional
# you also can create optional argument using:
# age: Option(int, "Enter your age") = 18
):
await ctx.respond(f"Hello! Your name is {name} and you are {age} years old.")
.. versionadded:: 2.0
"""
input_type: SlashCommandOptionType
converter: Converter | type[Converter] | None = None
def __init__(
self, input_type: InputType = str, /, description: str | None = None, **kwargs
) -> None:
self.name: str | None = kwargs.pop("name", None)
if self.name is not None:
self.name = str(self.name)
self._parameter_name = self.name # default
self._raw_type: InputType | tuple = input_type
enum_choices = []
input_type_is_class = isinstance(input_type, type)
if input_type_is_class and issubclass(input_type, (Enum, DiscordEnum)):
if description is None:
description = inspect.getdoc(input_type)
enum_choices = [OptionChoice(e.name, e.value) for e in input_type]
value_class = enum_choices[0].value.__class__
if all(isinstance(elem.value, value_class) for elem in enum_choices):
input_type = SlashCommandOptionType.from_datatype(
enum_choices[0].value.__class__
)
else:
enum_choices = [OptionChoice(e.name, str(e.value)) for e in input_type]
input_type = SlashCommandOptionType.string
self.description = description or "No description provided"
self.channel_types: list[ChannelType] = kwargs.pop("channel_types", [])
if isinstance(input_type, SlashCommandOptionType):
self.input_type = input_type
else:
from ..ext.commands import Converter
if (
isinstance(input_type, Converter)
or input_type_is_class
and issubclass(input_type, Converter)
):
self.converter = input_type
self._raw_type = str
self.input_type = SlashCommandOptionType.string
else:
try:
self.input_type = SlashCommandOptionType.from_datatype(input_type)
except TypeError as exc:
from ..ext.commands.converter import CONVERTER_MAPPING
if input_type not in CONVERTER_MAPPING:
raise exc
self.converter = CONVERTER_MAPPING[input_type]
self._raw_type = str
self.input_type = SlashCommandOptionType.string
else:
if self.input_type == SlashCommandOptionType.channel:
if not isinstance(self._raw_type, tuple):
if hasattr(input_type, "__args__"):
self._raw_type = input_type.__args__ # type: ignore # Union.__args__
else:
self._raw_type = (input_type,)
if not self.channel_types:
self.channel_types = [
CHANNEL_TYPE_MAP[t]
for t in self._raw_type
if t is not GuildChannel
]
self.required: bool = (
kwargs.pop("required", True) if "default" not in kwargs else False
)
self.default = kwargs.pop("default", None)
self.choices: list[OptionChoice] = enum_choices or [
o if isinstance(o, OptionChoice) else OptionChoice(o)
for o in kwargs.pop("choices", [])
]
if self.input_type == SlashCommandOptionType.integer:
minmax_types = (int, type(None))
minmax_typehint = Optional[int]
elif self.input_type == SlashCommandOptionType.number:
minmax_types = (int, float, type(None))
minmax_typehint = Optional[Union[int, float]]
else:
minmax_types = (type(None),)
minmax_typehint = type(None)
if self.input_type == SlashCommandOptionType.string:
minmax_length_types = (int, type(None))
minmax_length_typehint = Optional[int]
else:
minmax_length_types = (type(None),)
minmax_length_typehint = type(None)
self.min_value: int | float | None = kwargs.pop("min_value", None)
self.max_value: int | float | None = kwargs.pop("max_value", None)
self.min_length: int | None = kwargs.pop("min_length", None)
self.max_length: int | None = kwargs.pop("max_length", None)
if (
self.input_type != SlashCommandOptionType.integer
and self.input_type != SlashCommandOptionType.number
and (self.min_value or self.max_value)
):
raise AttributeError(
"Option does not take min_value or max_value if not of type "
"SlashCommandOptionType.integer or SlashCommandOptionType.number"
)
if self.input_type != SlashCommandOptionType.string and (
self.min_length or self.max_length
):
raise AttributeError(
"Option does not take min_length or max_length if not of type str"
)
if self.min_value is not None and not isinstance(self.min_value, minmax_types):
raise TypeError(
f"Expected {minmax_typehint} for min_value, got"
f' "{type(self.min_value).__name__}"'
)
if self.max_value is not None and not isinstance(self.max_value, minmax_types):
raise TypeError(
f"Expected {minmax_typehint} for max_value, got"
f' "{type(self.max_value).__name__}"'
)
if self.min_length is not None:
if not isinstance(self.min_length, minmax_length_types):
raise TypeError(
f"Expected {minmax_length_typehint} for min_length,"
f' got "{type(self.min_length).__name__}"'
)
if self.min_length < 0 or self.min_length > 6000:
raise AttributeError(
"min_length must be between 0 and 6000 (inclusive)"
)
if self.max_length is not None:
if not isinstance(self.max_length, minmax_length_types):
raise TypeError(
f"Expected {minmax_length_typehint} for max_length,"
f' got "{type(self.max_length).__name__}"'
)
if self.max_length < 1 or self.max_length > 6000:
raise AttributeError("max_length must between 1 and 6000 (inclusive)")
self.autocomplete = kwargs.pop("autocomplete", None)
self.name_localizations = kwargs.pop("name_localizations", MISSING)
self.description_localizations = kwargs.pop(
"description_localizations", MISSING
)
def to_dict(self) -> dict:
as_dict = {
"name": self.name,
"description": self.description,
"type": self.input_type.value,
"required": self.required,
"choices": [c.to_dict() for c in self.choices],
"autocomplete": bool(self.autocomplete),
}
if self.name_localizations is not MISSING:
as_dict["name_localizations"] = self.name_localizations
if self.description_localizations is not MISSING:
as_dict["description_localizations"] = self.description_localizations
if self.channel_types:
as_dict["channel_types"] = [t.value for t in self.channel_types]
if self.min_value is not None:
as_dict["min_value"] = self.min_value
if self.max_value is not None:
as_dict["max_value"] = self.max_value
if self.min_length is not None:
as_dict["min_length"] = self.min_length
if self.max_length is not None:
as_dict["max_length"] = self.max_length
return as_dict
def __repr__(self):
return f"<discord.commands.{self.__class__.__name__} name={self.name}>"
[docs]class OptionChoice:
"""
Represents a name:value pairing for a selected :class:`.Option`.
.. versionadded:: 2.0
Attributes
----------
name: :class:`str`
The name of the choice. Shown in the UI when selecting an option.
value: Optional[Union[:class:`str`, :class:`int`, :class:`float`]]
The value of the choice. If not provided, will use the value of ``name``.
name_localizations: Dict[:class:`str`, :class:`str`]
The name localizations for this choice. The values of this should be ``"locale": "name"``.
See `here <https://discord.com/developers/docs/reference#locales>`_ for a list of valid locales.
"""
def __init__(
self,
name: str,
value: str | int | float | None = None,
name_localizations: dict[str, str] = MISSING,
):
self.name = str(name)
self.value = value if value is not None else name
self.name_localizations = name_localizations
def to_dict(self) -> dict[str, str | int | float]:
as_dict = {"name": self.name, "value": self.value}
if self.name_localizations is not MISSING:
as_dict["name_localizations"] = self.name_localizations
return as_dict
[docs]def option(name, type=None, **kwargs):
"""A decorator that can be used instead of typehinting :class:`.Option`.
.. versionadded:: 2.0
Attributes
----------
parameter_name: :class:`str`
The name of the target parameter this option is mapped to.
This allows you to have a separate UI ``name`` and parameter name.
"""
def decorator(func):
nonlocal type
type = type or func.__annotations__.get(name, str)
if parameter := kwargs.get("parameter_name"):
func.__annotations__[parameter] = Option(type, name=name, **kwargs)
else:
func.__annotations__[name] = Option(type, **kwargs)
return func
return decorator