Add CustomErrorHandler and use it

Ignore benign 'Bad Request: message to be replied not found' Telegram
error while logging other errors

src/bots_manager/custom_error_handler.rs

@@ -0,0 +1,46 @@
+use std::future::Future;
+use std::pin::Pin;
+use std::sync::Arc;
+use tracing::log;
+
+pub struct CustomErrorHandler {
+    pub text: String,
+}
+
+impl CustomErrorHandler {
+    pub fn with_custom_text<T>(text: T) -> Arc<Self>
+    where
+        T: Into<String>,
+    {
+        Arc::new(Self { text: text.into() })
+    }
+}
+
+impl<E> teloxide::error_handlers::ErrorHandler<E> for CustomErrorHandler
+where
+    E: std::fmt::Debug + Send + 'static,
+{
+    fn handle_error(
+        self: Arc<Self>,
+        error: E,
+    ) -> Pin<Box<dyn Future<Output = ()> + Send + 'static>> {
+        Box::pin(async move {
+            let error_string = format!("{:?}", error);
+
+            if error_string.contains("Bad Request: message to be replied not found") {
+                log::debug!("Ignoring Telegram reply error: {:?}", error);
+                return;
+            }
+
+            log::error!("{}: {:?}", self.text, error);
+        })
+    }
+}
+
+impl Default for CustomErrorHandler {
+    fn default() -> Self {
+        Self {
+            text: "An error from the update listener".to_string(),
+        }
+    }
+}

src/bots_manager/internal.rs

@@ -1,6 +1,7 @@
+use super::custom_error_handler::CustomErrorHandler;
 use teloxide::adaptors::throttle::Limits;
 use teloxide::dispatching::Dispatcher;
-use teloxide::error_handlers::LoggingErrorHandler;
+
 use teloxide::requests::{Request, Requester, RequesterExt};
 use teloxide::stop::StopToken;
 use teloxide::stop::{mk_stop_token, StopFlag};
@@ -108,7 +109,7 @@ pub async fn start_bot(bot_data: &BotData) {
         dispatcher
             .dispatch_with_listener(
                 listener,
-                LoggingErrorHandler::with_custom_text("An error from the update listener"),
+                CustomErrorHandler::with_custom_text("An error from the update listener"),
             )
             .await;
     });

src/bots_manager/mod.rs

@@ -1,6 +1,7 @@
 pub mod axum_server;
 pub mod bot_manager_client;
 pub mod closable_sender;
+pub mod custom_error_handler;
 pub mod internal;
 pub mod utils;