ignore messages sent from self

src/main.rs

@@ -150,7 +150,16 @@ async fn auto_join(
     Ok(())
 }
 
-async fn on_room_message(event: SyncMessageEvent<MessageEventContent>, room: Room) -> Result<()> {
+async fn on_room_message(
+    event: SyncMessageEvent<MessageEventContent>,
+    room: Room,
+    client: Client,
+) -> Result<()> {
+    // Ignore messages sent from self.
+    if client.user_id().await.as_ref() == Some(&event.sender) {
+        return Ok(());
+    }
+
     if let Room::Joined(room) = room {
         parse_message(event, room).await?;
     }
@@ -229,7 +238,12 @@ async fn source(room: Joined) -> Result<()> {
 }
 
 async fn uwuify(room: Joined, message: &str) -> Result<()> {
-    let content = MessageEventContent::text_plain(uwuifier::uwuify_str_sse(message));
+    let message = if message.is_empty() {
+        "uwu".to_owned()
+    } else {
+        uwuifier::uwuify_str_sse(message)
+    };
+    let content = MessageEventContent::text_plain(message);
     room.send(content, None).await?;
     Ok(())
 }