Add ChatBackground variant to MessageKind enum

and add `filter_chat_background_set` to `MessageFilterExt` trait

crates/teloxide-core/src/types.rs

@@ -23,6 +23,7 @@ pub use callback_query::*;
 pub use chat::*;
 pub use chat_action::*;
 pub use chat_administrator_rights::*;
+pub use chat_background::*;
 pub use chat_boost::*;
 pub use chat_boost_added::*;
 pub use chat_boost_removed::*;
@@ -190,6 +191,7 @@ mod callback_query;
 mod chat;
 mod chat_action;
 mod chat_administrator_rights;
+mod chat_background;
 mod chat_boost;
 mod chat_boost_removed;
 mod chat_boost_source;

crates/teloxide-core/src/types/chat_background.rs

@@ -0,0 +1,13 @@
+use serde::{Deserialize, Serialize};
+
+use crate::types::BackgroundType;
+
+/// This object represents a chat background.
+#[serde_with::skip_serializing_none]
+#[derive(Clone, Debug)]
+#[derive(PartialEq, Eq, Hash)]
+#[derive(Serialize, Deserialize)]
+pub struct ChatBackground {
+    /// Type of the background
+    pub r#type: BackgroundType,
+}

crates/teloxide-core/src/types/message.rs

@@ -5,15 +5,16 @@ use serde::{Deserialize, Serialize};
 use url::Url;
 
 use crate::types::{
-    Animation, Audio, BareChatId, BusinessConnectionId, Chat, ChatBoostAdded, ChatId, ChatShared,
-    Contact, Dice, Document, ExternalReplyInfo, ForumTopicClosed, ForumTopicCreated,
-    ForumTopicEdited, ForumTopicReopened, Game, GeneralForumTopicHidden, GeneralForumTopicUnhidden,
-    Giveaway, GiveawayCompleted, GiveawayCreated, GiveawayWinners, InlineKeyboardMarkup, Invoice,
-    LinkPreviewOptions, Location, MaybeInaccessibleMessage, MessageAutoDeleteTimerChanged,
-    MessageEntity, MessageEntityRef, MessageId, MessageOrigin, PassportData, PhotoSize, Poll,
-    ProximityAlertTriggered, Sticker, Story, SuccessfulPayment, TextQuote, ThreadId, True, User,
-    UsersShared, Venue, Video, VideoChatEnded, VideoChatParticipantsInvited, VideoChatScheduled,
-    VideoChatStarted, VideoNote, Voice, WebAppData, WriteAccessAllowed,
+    Animation, Audio, BareChatId, BusinessConnectionId, Chat, ChatBackground, ChatBoostAdded,
+    ChatId, ChatShared, Contact, Dice, Document, ExternalReplyInfo, ForumTopicClosed,
+    ForumTopicCreated, ForumTopicEdited, ForumTopicReopened, Game, GeneralForumTopicHidden,
+    GeneralForumTopicUnhidden, Giveaway, GiveawayCompleted, GiveawayCreated, GiveawayWinners,
+    InlineKeyboardMarkup, Invoice, LinkPreviewOptions, Location, MaybeInaccessibleMessage,
+    MessageAutoDeleteTimerChanged, MessageEntity, MessageEntityRef, MessageId, MessageOrigin,
+    PassportData, PhotoSize, Poll, ProximityAlertTriggered, Sticker, Story, SuccessfulPayment,
+    TextQuote, ThreadId, True, User, UsersShared, Venue, Video, VideoChatEnded,
+    VideoChatParticipantsInvited, VideoChatScheduled, VideoChatStarted, VideoNote, Voice,
+    WebAppData, WriteAccessAllowed,
 };
 
 /// This object represents a message.
@@ -90,6 +91,7 @@ pub enum MessageKind {
     Dice(MessageDice),
     ProximityAlertTriggered(MessageProximityAlertTriggered),
     ChatBoostAdded(MessageChatBoostAdded),
+    ChatBackground(MessageChatBackground),
     ForumTopicCreated(MessageForumTopicCreated),
     ForumTopicEdited(MessageForumTopicEdited),
     ForumTopicClosed(MessageForumTopicClosed),
@@ -584,6 +586,13 @@ pub struct MessageChatBoostAdded {
     pub boost_added: ChatBoostAdded,
 }
 
+#[serde_with::skip_serializing_none]
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
+pub struct MessageChatBackground {
+    /// Service message. Chat background set.
+    pub chat_background_set: ChatBackground,
+}
+
 #[serde_with::skip_serializing_none]
 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
 pub struct MessageWriteAccessAllowed {
@@ -727,12 +736,12 @@ mod getters {
     };
 
     use super::{
-        MessageChatBoostAdded, MessageForumTopicClosed, MessageForumTopicCreated,
-        MessageForumTopicEdited, MessageForumTopicReopened, MessageGeneralForumTopicHidden,
-        MessageGeneralForumTopicUnhidden, MessageGiveaway, MessageGiveawayCompleted,
-        MessageGiveawayCreated, MessageGiveawayWinners, MessageMessageAutoDeleteTimerChanged,
-        MessageVideoChatEnded, MessageVideoChatScheduled, MessageVideoChatStarted,
-        MessageWebAppData, MessageWriteAccessAllowed,
+        MessageChatBackground, MessageChatBoostAdded, MessageForumTopicClosed,
+        MessageForumTopicCreated, MessageForumTopicEdited, MessageForumTopicReopened,
+        MessageGeneralForumTopicHidden, MessageGeneralForumTopicUnhidden, MessageGiveaway,
+        MessageGiveawayCompleted, MessageGiveawayCreated, MessageGiveawayWinners,
+        MessageMessageAutoDeleteTimerChanged, MessageVideoChatEnded, MessageVideoChatScheduled,
+        MessageVideoChatStarted, MessageWebAppData, MessageWriteAccessAllowed,
     };
 
     /// Getters for [Message] fields from [telegram docs].
@@ -1414,6 +1423,16 @@ mod getters {
             }
         }
 
+        #[must_use]
+        pub fn chat_background_set(&self) -> Option<&types::ChatBackground> {
+            match &self.kind {
+                ChatBackground(MessageChatBackground { chat_background_set }) => {
+                    Some(chat_background_set)
+                }
+                _ => None,
+            }
+        }
+
         #[must_use]
         pub fn forum_topic_created(&self) -> Option<&types::ForumTopicCreated> {
             match &self.kind {

crates/teloxide/src/dispatching/filter_ext.rs

@@ -116,6 +116,7 @@ define_message_ext! {
     (filter_dice, Message::dice),
     (filter_proximity_alert_triggered, Message::proximity_alert_triggered),
     (filter_boost_added, Message::boost_added),
+    (filter_chat_background_set, Message::chat_background_set),
     (filter_forum_topic_created, Message::forum_topic_created),
     (filter_forum_topic_edited, Message::forum_topic_edited),
     (filter_forum_topic_closed, Message::forum_topic_closed),