Add audit log entries for stage instances

3 files changed, 123 insertions, 77 deletions

diff --git a/discord/audit_logs.py b/discord/audit_logs.py
index a56f08fd..f1bba6ef 100644
--- a/discord/audit_logs.py
+++ b/discord/audit_logs.py
@@ -24,7 +24,7 @@ DEALINGS IN THE SOFTWARE.
 
 from __future__ import annotations
 
-from typing import TYPE_CHECKING, Any, Callable, ClassVar, Dict, Generator, List, Optional, Tuple, Union
+from typing import TYPE_CHECKING, Any, Callable, ClassVar, Dict, Generator, List, Optional, Tuple, Type, TypeVar, Union
 
 from . import enums, utils
 from .asset import Asset
@@ -57,18 +57,6 @@ if TYPE_CHECKING:
     from .user import User
 
 
-def _transform_verification_level(entry: AuditLogEntry, data: int) -> enums.VerificationLevel:
-    return enums.try_enum(enums.VerificationLevel, data)
-
-
-def _transform_default_notifications(entry: AuditLogEntry, data: int) -> enums.NotificationLevel:
-    return enums.try_enum(enums.NotificationLevel, data)
-
-
-def _transform_explicit_content_filter(entry: AuditLogEntry, data: int) -> enums.ContentFilter:
-    return enums.try_enum(enums.ContentFilter, data)
-
-
 def _transform_permissions(entry: AuditLogEntry, data: str) -> Permissions:
     return Permissions(int(data))
 
@@ -124,18 +112,6 @@ def _transform_overwrites(
     return overwrites
 
 
-def _transform_channeltype(entry: AuditLogEntry, data: int) -> enums.ChannelType:
-    return enums.try_enum(enums.ChannelType, data)
-
-
-def _transform_voiceregion(entry: AuditLogEntry, data: int) -> enums.VoiceRegion:
-    return enums.try_enum(enums.VoiceRegion, data)
-
-
-def _transform_video_quality_mode(entry: AuditLogEntry, data: int) -> enums.VideoQualityMode:
-    return enums.try_enum(enums.VideoQualityMode, data)
-
-
 def _transform_icon(entry: AuditLogEntry, data: Optional[str]) -> Optional[Asset]:
     if data is None:
         return None
@@ -145,10 +121,10 @@ def _transform_icon(entry: AuditLogEntry, data: Optional[str]) -> Optional[Asset
 def _transform_avatar(entry: AuditLogEntry, data: Optional[str]) -> Optional[Asset]:
     if data is None:
         return None
-    return Asset._from_avatar(entry._state, entry._target_id, data)
+    return Asset._from_avatar(entry._state, entry._target_id, data)  # type: ignore
 
 
-def _guild_hash_transformer(path: str) -> Callable[['AuditLogEntry', Optional[str]], Optional[Asset]]:
+def _guild_hash_transformer(path: str) -> Callable[[AuditLogEntry, Optional[str]], Optional[Asset]]:
     def _transform(entry: AuditLogEntry, data: Optional[str]) -> Optional[Asset]:
         if data is None:
             return None
@@ -157,6 +133,16 @@ def _guild_hash_transformer(path: str) -> Callable[['AuditLogEntry', Optional[st
     return _transform
 
 
+T = TypeVar('T', bound=enums.Enum)
+
+
+def _enum_transformer(enum: Type[T]) -> Callable[[AuditLogEntry, int], T]:
+    def _transform(entry: AuditLogEntry, data: int) -> T:
+        return enums.try_enum(enum, data)
+
+    return _transform
+
+
 class AuditLogDiff:
     def __len__(self) -> int:
         return len(self.__dict__)
@@ -183,8 +169,8 @@ Transformer = Callable[["AuditLogEntry", Any], Any]
 class AuditLogChanges:
     # fmt: off
     TRANSFORMERS: ClassVar[Dict[str, Tuple[Optional[str], Optional[Transformer]]]] = {
-        'verification_level':            (None, _transform_verification_level),
-        'explicit_content_filter':       (None, _transform_explicit_content_filter),
+        'verification_level':            (None, _enum_transformer(enums.VerificationLevel)),
+        'explicit_content_filter':       (None, _enum_transformer(enums.ContentFilter)),
         'allow':                         (None, _transform_permissions),
         'deny':                          (None, _transform_permissions),
         'permissions':                   (None, _transform_permissions),
@@ -205,11 +191,12 @@ class AuditLogChanges:
         'icon_hash':                     ('icon', _transform_icon),
         'avatar_hash':                   ('avatar', _transform_avatar),
         'rate_limit_per_user':           ('slowmode_delay', None),
-        'default_message_notifications': ('default_notifications', _transform_default_notifications),
-        'region':                        (None, _transform_voiceregion),
-        'rtc_region':                    (None, _transform_voiceregion),
-        'video_quality_mode':            (None, _transform_video_quality_mode),
-        'type':                          (None, _transform_channeltype),
+        'default_message_notifications': ('default_notifications', _enum_transformer(enums.NotificationLevel)),
+        'region':                        (None, _enum_transformer(enums.VoiceRegion)),
+        'rtc_region':                    (None, _enum_transformer(enums.VoiceRegion)),
+        'video_quality_mode':            (None, _enum_transformer(enums.VideoQualityMode)),
+        'privacy_level':                 (None, _enum_transformer(enums.StagePrivacyLevel)),
+        'type':                          (None, _enum_transformer(enums.ChannelType)),
     }
     # fmt: on
 
@@ -308,6 +295,10 @@ class _AuditLogProxyPinAction:
     message_id: int
 
 
+class _AuditLogProxyStageInstanceAction:
+    channel: abc.GuildChannel
+
+
 class AuditLogEntry(Hashable):
     r"""Represents an Audit Log entry.
 
@@ -404,6 +395,10 @@ class AuditLogEntry(Hashable):
                         role = Object(id=instance_id)
                         role.name = self.extra.get('role_name')  # type: ignore
                     self.extra: Role = role
+            elif self.action.name.startswith('stage_instance'):
+                channel_id = int(self.extra['channel_id'])
+                elems = {'channel': self.guild.get_channel(channel_id) or Object(id=channel_id)}
+                self.extra: _AuditLogProxyStageInstanceAction = type('_AuditLogProxy', (), elems)()
 
         # fmt: off
         self.extra: Union[
@@ -411,6 +406,7 @@ class AuditLogEntry(Hashable):
             _AuditLogProxyMemberMoveOrMessageDelete,
             _AuditLogProxyMemberDisconnect,
             _AuditLogProxyPinAction,
+            _AuditLogProxyStageInstanceAction,
             Member, User, None,
             Role,
         ]
diff --git a/discord/enums.py b/discord/enums.py
index 98b5a109..57d43e53 100644
--- a/discord/enums.py
+++ b/discord/enums.py
@@ -24,7 +24,7 @@ DEALINGS IN THE SOFTWARE.
 
 import types
 from collections import namedtuple
-from typing import Any, TYPE_CHECKING, Type, TypeVar
+from typing import Any, Dict, Optional, TYPE_CHECKING, Type, TypeVar
 
 __all__ = (
     'Enum',
@@ -320,50 +320,56 @@ class AuditLogAction(Enum):
     integration_create       = 80
     integration_update       = 81
     integration_delete       = 82
+    stage_instance_create    = 83
+    stage_instance_update    = 84
+    stage_instance_delete    = 85
 
     @property
-    def category(self):
-        lookup = {
-            AuditLogAction.guild_update:        AuditLogActionCategory.update,
-            AuditLogAction.channel_create:      AuditLogActionCategory.create,
-            AuditLogAction.channel_update:      AuditLogActionCategory.update,
-            AuditLogAction.channel_delete:      AuditLogActionCategory.delete,
-            AuditLogAction.overwrite_create:    AuditLogActionCategory.create,
-            AuditLogAction.overwrite_update:    AuditLogActionCategory.update,
-            AuditLogAction.overwrite_delete:    AuditLogActionCategory.delete,
-            AuditLogAction.kick:                None,
-            AuditLogAction.member_prune:        None,
-            AuditLogAction.ban:                 None,
-            AuditLogAction.unban:               None,
-            AuditLogAction.member_update:       AuditLogActionCategory.update,
-            AuditLogAction.member_role_update:  AuditLogActionCategory.update,
-            AuditLogAction.member_move:         None,
-            AuditLogAction.member_disconnect:   None,
-            AuditLogAction.bot_add:             None,
-            AuditLogAction.role_create:         AuditLogActionCategory.create,
-            AuditLogAction.role_update:         AuditLogActionCategory.update,
-            AuditLogAction.role_delete:         AuditLogActionCategory.delete,
-            AuditLogAction.invite_create:       AuditLogActionCategory.create,
-            AuditLogAction.invite_update:       AuditLogActionCategory.update,
-            AuditLogAction.invite_delete:       AuditLogActionCategory.delete,
-            AuditLogAction.webhook_create:      AuditLogActionCategory.create,
-            AuditLogAction.webhook_update:      AuditLogActionCategory.update,
-            AuditLogAction.webhook_delete:      AuditLogActionCategory.delete,
-            AuditLogAction.emoji_create:        AuditLogActionCategory.create,
-            AuditLogAction.emoji_update:        AuditLogActionCategory.update,
-            AuditLogAction.emoji_delete:        AuditLogActionCategory.delete,
-            AuditLogAction.message_delete:      AuditLogActionCategory.delete,
-            AuditLogAction.message_bulk_delete: AuditLogActionCategory.delete,
-            AuditLogAction.message_pin:         None,
-            AuditLogAction.message_unpin:       None,
-            AuditLogAction.integration_create:  AuditLogActionCategory.create,
-            AuditLogAction.integration_update:  AuditLogActionCategory.update,
-            AuditLogAction.integration_delete:  AuditLogActionCategory.delete,
+    def category(self) -> Optional[AuditLogActionCategory]:
+        lookup: Dict[AuditLogAction, Optional[AuditLogActionCategory]] = {
+            AuditLogAction.guild_update:          AuditLogActionCategory.update,
+            AuditLogAction.channel_create:        AuditLogActionCategory.create,
+            AuditLogAction.channel_update:        AuditLogActionCategory.update,
+            AuditLogAction.channel_delete:        AuditLogActionCategory.delete,
+            AuditLogAction.overwrite_create:      AuditLogActionCategory.create,
+            AuditLogAction.overwrite_update:      AuditLogActionCategory.update,
+            AuditLogAction.overwrite_delete:      AuditLogActionCategory.delete,
+            AuditLogAction.kick:                  None,
+            AuditLogAction.member_prune:          None,
+            AuditLogAction.ban:                   None,
+            AuditLogAction.unban:                 None,
+            AuditLogAction.member_update:         AuditLogActionCategory.update,
+            AuditLogAction.member_role_update:    AuditLogActionCategory.update,
+            AuditLogAction.member_move:           None,
+            AuditLogAction.member_disconnect:     None,
+            AuditLogAction.bot_add:               None,
+            AuditLogAction.role_create:           AuditLogActionCategory.create,
+            AuditLogAction.role_update:           AuditLogActionCategory.update,
+            AuditLogAction.role_delete:           AuditLogActionCategory.delete,
+            AuditLogAction.invite_create:         AuditLogActionCategory.create,
+            AuditLogAction.invite_update:         AuditLogActionCategory.update,
+            AuditLogAction.invite_delete:         AuditLogActionCategory.delete,
+            AuditLogAction.webhook_create:        AuditLogActionCategory.create,
+            AuditLogAction.webhook_update:        AuditLogActionCategory.update,
+            AuditLogAction.webhook_delete:        AuditLogActionCategory.delete,
+            AuditLogAction.emoji_create:          AuditLogActionCategory.create,
+            AuditLogAction.emoji_update:          AuditLogActionCategory.update,
+            AuditLogAction.emoji_delete:          AuditLogActionCategory.delete,
+            AuditLogAction.message_delete:        AuditLogActionCategory.delete,
+            AuditLogAction.message_bulk_delete:   AuditLogActionCategory.delete,
+            AuditLogAction.message_pin:           None,
+            AuditLogAction.message_unpin:         None,
+            AuditLogAction.integration_create:    AuditLogActionCategory.create,
+            AuditLogAction.integration_update:    AuditLogActionCategory.update,
+            AuditLogAction.integration_delete:    AuditLogActionCategory.delete,
+            AuditLogAction.stage_instance_create: AuditLogActionCategory.create,
+            AuditLogAction.stage_instance_update: AuditLogActionCategory.update,
+            AuditLogAction.stage_instance_delete: AuditLogActionCategory.delete,
         }
         return lookup[self]
 
     @property
-    def target_type(self):
+    def target_type(self) -> Optional[str]:
         v = self.value
         if v == -1:
             return 'all'
@@ -385,8 +391,10 @@ class AuditLogAction(Enum):
             return 'channel'
         elif v < 80:
             return 'message'
-        elif v < 90:
+        elif v < 83:
             return 'integration'
+        elif v < 90:
+            return 'stage_instance'
 
 class UserFlags(Enum):
     staff = 1
diff --git a/docs/api.rst b/docs/api.rst
index 0aeea2f7..3231871d 100644
--- a/docs/api.rst
+++ b/docs/api.rst
@@ -2134,6 +2134,42 @@ of :class:`enum.Enum`.
 
         .. versionadded:: 1.3
 
+    .. attribute:: stage_instance_create
+
+        A stage instance was started.
+
+        When this is the action, the type of :attr:`~AuditLogEntry.target` is
+        either :class:`Object` with the stage instance ID of the stage instance
+        which was created.
+
+        Possible attributes for :class:`AuditLogDiff`:
+
+        - :attr:`~AuditLogDiff.topic`
+        - :attr:`~AuditLogDiff.privacy_level`
+
+        .. versionadded:: 2.0
+
+    .. attribute:: stage_instance_update
+
+        A stage instance was updated.
+
+        When this is the action, the type of :attr:`~AuditLogEntry.target` is
+        either :class:`Object` with the stage instance ID of the stage instance
+        which was updated.
+
+        Possible attributes for :class:`AuditLogDiff`:
+
+        - :attr:`~AuditLogDiff.topic`
+        - :attr:`~AuditLogDiff.privacy_level`
+
+        .. versionadded:: 2.0
+
+    .. attribute:: stage_instance_delete
+
+        A stage instance was ended.
+
+        .. versionadded:: 2.0
+
 .. class:: AuditLogActionCategory
 
     Represents the category that the :class:`AuditLogAction` belongs to.
@@ -2282,7 +2318,7 @@ of :class:`enum.Enum`.
 
         Represents full camera video quality.
 
-.. class:: PrivacyLevel
+.. class:: StagePrivacyLevel
 
     Represents a stage instance's privacy level.
 
@@ -2715,9 +2751,9 @@ AuditLogDiff
 
     .. attribute:: topic
 
-        The topic of a :class:`TextChannel`.
+        The topic of a :class:`TextChannel` or :class:`StageChannel`.
 
-        See also :attr:`TextChannel.topic`.
+        See also :attr:`TextChannel.topic` or :attr:`StageChannel.topic`.
 
         :type: :class:`str`
 
@@ -2742,6 +2778,12 @@ AuditLogDiff
 
         :type: List[Tuple[target, :class:`PermissionOverwrite`]]
 
+    .. attribute:: privacy_level
+
+        The privacy level of the stage instance.
+
+        :type: :class:`StagePrivacyLevel`
+
     .. attribute:: roles
 
         A list of roles being added or removed from a member.