feat: add new poll system message type

changelog/1212.feature.rst

@@ -0,0 +1 @@
+Add new ``poll_result`` message type.

disnake/enums.py

@@ -260,6 +260,7 @@ class MessageType(Enum):
     guild_incident_alert_mode_disabled = 37
     guild_incident_report_raid = 38
     guild_incident_report_false_alarm = 39
+    poll_result = 46
 
 
 class PartyType(Enum):

disnake/message.py

@@ -46,6 +46,7 @@
 
     from .abc import GuildChannel, MessageableChannel, Snowflake
     from .channel import DMChannel
+    from .embeds import _EmbedFieldProxy
     from .guild import GuildMessageable
     from .mentions import AllowedMentions
     from .role import Role
@@ -1538,6 +1539,25 @@ def system_content(self) -> Optional[str]:
         if self.type is MessageType.guild_incident_report_false_alarm:
             return f"{self.author.name} resolved an Activity Alert."
 
+        if self.type is MessageType.poll_result:
+            poll_result_embed = self.embeds[0]
+            get_field: Callable[[str], Optional[_EmbedFieldProxy]] = lambda field_name: utils.get(
+                poll_result_embed.fields, name=field_name
+            )
+            # should never be none
+            question = get_field("poll_question_text").value  # type: ignore
+            # should never be none
+            total_votes = get_field("total_votes").value  # type: ignore
+            winning_answer = get_field("victor_answer_text")
+            winning_answer_votes = get_field("victor_answer_votes")
+            msg = f"{self.author.global_name}'s poll {question} has closed."
+            if winning_answer and winning_answer_votes:
+                msg += (
+                    f" {winning_answer.value} won with {winning_answer_votes.value} "
+                    f"({(100 * int(winning_answer_votes.value)) // int(total_votes)}%)."  # type: ignore
+                )
+            return msg
+
         # in the event of an unknown or unsupported message type, we return nothing
         return None
 

disnake/types/embed.py

@@ -50,7 +50,7 @@ class EmbedAuthor(TypedDict):
     proxy_icon_url: NotRequired[str]
 
 
-EmbedType = Literal["rich", "image", "video", "gifv", "article", "link"]
+EmbedType = Literal["rich", "image", "video", "gifv", "article", "link", "poll_result"]
 
 
 class Embed(TypedDict, total=False):

disnake/types/message.py

@@ -78,7 +78,7 @@ class RoleSubscriptionData(TypedDict):
 
 
 # fmt: off
-MessageType = Literal[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 36, 37, 38, 39]
+MessageType = Literal[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 36, 37, 38, 39, 46]
 # fmt: on
 
 

docs/api/messages.rst

@@ -369,6 +369,12 @@ MessageType
 
         .. versionadded:: 2.10
 
+    .. attribute:: poll_result
+
+        The system message denoting that a poll expired, announcing the most voted answer.
+
+        .. versionadded:: 2.10
+
 Events
 ------