feat: update to songbird 0.6, make joining calls work by spawning everything as required in songbird's documentation

src/main.rs

@@ -170,6 +170,7 @@ async fn main() -> Result<(), MainError> {
         .expect("failed to deserialize set commands"); // TODO
 
     let command_router = CommandRouter::from_iter(commands);
+    let command_router = Arc::new(command_router);
 
     let vcs = initialize_vcs(&discord_client).await;
 
@@ -187,7 +188,7 @@ async fn main() -> Result<(), MainError> {
     while let Some(event_res) = next_event.await {
         match event_res {
             Ok(event) => {
-                handle_event(&command_router, state.clone(), event).await;
+                handle_event(command_router.clone(), state.clone(), event).await;
             }
             Err(error) => {
                 tracing::error!(?error);
@@ -201,7 +202,7 @@ async fn main() -> Result<(), MainError> {
 }
 
 #[tracing::instrument(skip(command_router))]
-async fn handle_event(command_router: &CommandRouter, state: State, event: Event) {
+async fn handle_event(command_router: Arc<CommandRouter>, state: State, event: Event) {
     state.songbird.process(&event).await;
     match event {
         Event::VoiceStateUpdate(voice_state_update) => {
@@ -215,10 +216,12 @@ async fn handle_event(command_router: &CommandRouter, state: State, event: Event
                     tracing::warn!("missing expected interaction data");
                 }
                 Some(InteractionData::ApplicationCommand(command_data)) => {
-                    let command_name = &command_data.name.clone();
-                    command_router
-                        .handle(state, command_name, interaction)
-                        .await;
+                    let command_name = command_data.name.clone();
+                    tokio::spawn(async move {
+                        command_router
+                            .handle(state, &command_name, interaction)
+                            .await;
+                    });
                 }
 
                 Some(InteractionData::MessageComponent(component_data)) => {