feat: add new reaction event (#1640)

Author: TyrantKingBen

interactions/api/events/__init__.py

@@ -44,6 +44,7 @@
     MessageReactionAdd,
     MessageReactionRemove,
     MessageReactionRemoveAll,
+    MessageReactionRemoveEmoji,
     MessageUpdate,
     NewThreadCreate,
     PresenceUpdate,
@@ -161,6 +162,7 @@
     "MessageReactionAdd",
     "MessageReactionRemove",
     "MessageReactionRemoveAll",
+    "MessageReactionRemoveEmoji",
     "MessageUpdate",
     "ModalCompletion",
     "ModalError",

interactions/api/events/discord.py

@@ -75,6 +75,7 @@ async def an_event_handler(event: ChannelCreate):
     "MessageReactionAdd",
     "MessageReactionRemove",
     "MessageReactionRemoveAll",
+    "MessageReactionRemoveEmoji",
     "MessageUpdate",
     "NewThreadCreate",
     "PresenceUpdate",
@@ -577,6 +578,16 @@ class MessageReactionRemoveAll(GuildEvent):
     """The message that was reacted to"""
 
 
+@attrs.define(eq=False, order=False, hash=False, kw_only=False)
+class MessageReactionRemoveEmoji(MessageReactionRemoveAll):
+    """Dispatched when all reactions of a specifc emoji are removed from a message."""
+
+    emoji: "PartialEmoji" = attrs.field(
+        repr=False,
+    )
+    """The emoji that was removed"""
+
+
 @attrs.define(eq=False, order=False, hash=False, kw_only=False)
 class PresenceUpdate(BaseEvent):
     """A user's presence has changed."""

interactions/api/events/processors/reaction_events.py

@@ -81,3 +81,24 @@ async def _on_raw_message_reaction_remove_all(self, event: "RawGatewayEvent") ->
                 await self.cache.fetch_message(event.data["channel_id"], event.data["message_id"]),
             )
         )
+
+    @Processor.define()
+    async def _on_raw_message_reaction_remove_emoji(self, event: "RawGatewayEvent") -> None:
+        emoji = PartialEmoji.from_dict(event.data.get("emoji"))
+        message = self.cache.get_message(event.data.get("channel_id"), event.data.get("message_id"))
+
+        if message:
+            for i, reaction in enumerate(message.reactions):
+                if reaction.emoji == emoji:
+                    message.reactions.pop(i)
+                    break
+        else:
+            message = await self.cache.fetch_message(event.data.get("channel_id"), event.data.get("message_id"))
+
+        self.dispatch(
+            events.MessageReactionRemoveEmoji(
+                event.data.get("guild_id"),
+                message,
+                emoji,
+            )
+        )

interactions/client/client.py

@@ -208,6 +208,11 @@
         Intents.DIRECT_MESSAGE_REACTIONS,
         Intents.REACTIONS,
     ],
+    events.MessageReactionRemoveEmoji: [
+        Intents.GUILD_MESSAGE_REACTIONS,
+        Intents.DIRECT_MESSAGE_REACTIONS,
+        Intents.REACTIONS,
+    ],
 }