Fix ST command to defer, as it can be quite slow

src/main.rs

@@ -179,7 +179,11 @@ async fn dawn(ctx: Context<'_>) -> Result<()> {
 }
 
 #[poise::command(slash_command, ephemeral)]
-async fn join(ctx: Context<'_>, to: serenity::UserId, user: Option<serenity::UserId>) -> Result<()> {
+async fn join(
+    ctx: Context<'_>,
+    to: serenity::UserId,
+    user: Option<serenity::UserId>,
+) -> Result<()> {
     let guild = ctx
         .guild_id()
         .ok_or_eyre("This bot only works in servers")?;
@@ -195,7 +199,9 @@ async fn join(ctx: Context<'_>, to: serenity::UserId, user: Option<serenity::Use
 
     match channel {
         Some(channel) => {
-            guild.move_member(ctx, user.unwrap_or(ctx.author().id), channel).await?;
+            guild
+                .move_member(ctx, user.unwrap_or(ctx.author().id), channel)
+                .await?;
             ctx.reply("Joined player").await?;
         }
         None => {
@@ -213,6 +219,8 @@ async fn st(ctx: Context<'_>, mut spectators: Vec<serenity::UserId>) -> Result<(
     let GuildData { st, .. } = ctx.data().get(guild).await?;
     spectators.push(ctx.author().id);
 
+    ctx.defer_ephemeral().await?;
+
     guild
         .members_iter(&ctx)
         .try_for_each(|member| {
@@ -313,7 +321,14 @@ async fn main() -> Result<()> {
 
     let framework = poise::Framework::builder()
         .options(poise::FrameworkOptions {
-            commands: vec![dusk(), dawn(), st(), currently_playing(), join(), configure()],
+            commands: vec![
+                dusk(),
+                dawn(),
+                st(),
+                currently_playing(),
+                join(),
+                configure(),
+            ],
             event_handler: |ctx, ev, ctxf, data| on_event(ctx, ev, ctxf, data).boxed(),
             ..Default::default()
         })