feat: add support for voice messages (#1376)

Author: LordOfPolls

interactions/models/discord/enums.py

@@ -559,6 +559,8 @@ class Permissions(DiscordIntFlag):  # type: ignore
     """Allows for creating emojis, stickers, and soundboard sounds"""
     USE_EXTERNAL_SOUNDS = 1 << 45
     """Allows the usage of custom sounds from other servers"""
+    SEND_VOICE_MESSAGES = 1 << 46
+    """Allows for sending audio messages"""
 
     # Shortcuts/grouping/aliases
     REQUIRES_MFA = (

interactions/models/discord/message.py

@@ -1,4 +1,5 @@
 import asyncio
+import base64
 import re
 from dataclasses import dataclass
 from typing import (
@@ -89,12 +90,22 @@ class Attachment(DiscordObject):
     """width of file (if image)"""
     ephemeral: bool = attrs.field(repr=False, default=False)
     """whether this attachment is ephemeral"""
+    duration_secs: Optional[int] = attrs.field(repr=False, default=None)
+    """the duration of the audio file (currently for voice messages)"""
+    waveform: bytearray = attrs.field(repr=False, default=None)
+    """base64 encoded bytearray representing a sampled waveform (currently for voice messages)"""
 
     @property
     def resolution(self) -> tuple[Optional[int], Optional[int]]:
         """Returns the image resolution of the attachment file"""
         return self.height, self.width
 
+    @classmethod
+    def _process_dict(cls, data: Dict[str, Any], _) -> Dict[str, Any]:
+        if waveform := data.pop("waveform", None):
+            data["waveform"] = bytearray(base64.b64decode(waveform))
+        return data
+
 
 @attrs.define(eq=False, order=False, hash=False, kw_only=True)
 class ChannelMention(DiscordObject):
@@ -369,6 +380,13 @@ def thread(self) -> "models.TYPE_THREAD_CHANNEL":
         """The thread that was started from this message, if any"""
         return self._client.cache.get_channel(self.id)
 
+    @property
+    def editable(self) -> bool:
+        """Whether this message can be edited by the current user"""
+        if self.author.id == self._client.user.id:
+            return MessageFlags.VOICE_MESSAGE not in self.flags
+        return False
+
     async def fetch_referenced_message(self, *, force: bool = False) -> Optional["Message"]:
         """
         Fetch the message this message is referencing, if any.