Implement stop command

magbot-rs/src/commands.rs

@@ -36,12 +36,23 @@ pub async fn start(
 pub async fn stop(
     event: &OriginalSyncRoomMessageEvent,
     room: &Room,
-    ctx: Ctx<MagbotContext>,
+    mut ctx: Ctx<MagbotContext>,
 ) -> anyhow::Result<()> {
+    let user = event.sender.to_string();
+
     // clear out saved titles
+    ctx.0.titles.clear();
+
     // set state to sleeping
+    ctx.0.status = MagbotStatus::Sleeping;
+
     // send message that magbot is no longer listening
-    todo!()
+    let msg = RoomMessageEventContent::text_plain(format!(
+        "{user} Magbot is no longer listening for titles!"
+    ));
+    room.send(msg).await?;
+
+    Ok(())
 }
 
 /// Shows available commands