fix: enum option issues (#2463)

* patch enums

* cl

* document enum choice/autocomplete behaviour

* Update discord/commands/options.py

Co-authored-by: Icebluewolf <44532864+Icebluewolf@users.noreply.github.com>
Signed-off-by: UK <41271523+NeloBlivion@users.noreply.github.com>

* clarify docstring and warn

* style(pre-commit): auto fixes from pre-commit.com hooks

* import

* style(pre-commit): auto fixes from pre-commit.com hooks

---------

Signed-off-by: UK <41271523+NeloBlivion@users.noreply.github.com>
Co-authored-by: Icebluewolf <44532864+Icebluewolf@users.noreply.github.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Lala Sabathil <lala@pycord.dev>

CHANGELOG.md

@@ -66,6 +66,8 @@ These changes are available on the `master` branch, but have not yet been releas
   ([#2448](https://github.com/Pycord-Development/pycord/pull/2448))
 - Fixed missing `application_id` in `Entitlement.delete`.
   ([#2458](https://github.com/Pycord-Development/pycord/pull/2458))
+- Fixed issues with enums as `Option` types with long descriptions or too many values
+  ([#2463](https://github.com/Pycord-Development/pycord/pull/2463))
 - Fixed many inaccurate type hints throughout the library.
   ([#2457](https://github.com/Pycord-Development/pycord/pull/2457))
 - Fixed `AttributeError` due to `discord.Option` being initialised with `input_type` set

discord/commands/options.py

@@ -25,6 +25,7 @@
 from __future__ import annotations
 
 import inspect
+import logging
 from enum import Enum
 from typing import TYPE_CHECKING, Literal, Optional, Type, Union
 
@@ -41,7 +42,7 @@
 from ..enums import ChannelType
 from ..enums import Enum as DiscordEnum
 from ..enums import SlashCommandOptionType
-from ..utils import MISSING
+from ..utils import MISSING, basic_autocomplete
 
 if TYPE_CHECKING:
     from ..ext.commands import Converter
@@ -86,6 +87,8 @@
     DMChannel: ChannelType.private,
 }
 
+_log = logging.getLogger(__name__)
+
 
 class ThreadOption:
     """Represents a class that can be passed as the ``input_type`` for an :class:`Option` class.
@@ -115,12 +118,13 @@ class Option:
     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`.
+        If a :class:`enum.Enum` is used and it has up to 25 values, :attr:`choices` will be automatically filled. If the :class:`enum.Enum` has more than 25 values, :attr:`autocomplete` will be implemented with :func:`discord.utils.basic_autocomplete` instead.
     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.
+        Must be 100 characters or fewer. If :attr:`input_type` is a :class:`enum.Enum` and :attr:`description` is not specified, :attr:`input_type`'s docstring will be used.
     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).
@@ -195,7 +199,14 @@ def __init__(
         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)
+                description = inspect.cleandoc(input_type.__doc__)
+                if description and len(description) > 100:
+                    description = description[:97] + "..."
+                    _log.warning(
+                        "Option %s's description was truncated due to Enum %s's docstring exceeding 100 characters.",
+                        self.name,
+                        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):
@@ -250,10 +261,19 @@ def __init__(
             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", [])
-        ]
+
+        self.autocomplete = kwargs.pop("autocomplete", None)
+        if len(enum_choices) > 25:
+            self.choices: list[OptionChoice] = []
+            for e in enum_choices:
+                e.value = str(e.value)
+            self.autocomplete = basic_autocomplete(enum_choices)
+            self.input_type = SlashCommandOptionType.string
+        else:
+            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))
@@ -323,8 +343,6 @@ def __init__(
             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