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perf(ticket): instant defer on modal, skip channels scan before modal popup

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This commit is contained in:
loki5512344 2026-09-21 21:05:08 +02:00
parent bf52f83a3a
commit e0d3b44118
Signed by: boba
GPG key ID: 253067914055423B
1 changed files with 19 additions and 42 deletions
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61
src/feature/ticket/handler.rs
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@ -166,7 +166,7 @@ pub async fn on_select(ctx: Context, interaction: ComponentInteraction) {
.await;
return;
};
// Pre-checks before showing modal (blacklist / existing ticket) to avoid wasted modal.
// Fast pre-check: only blacklist (DB, ~5ms). Duplicate check moved to modal submit after defer (guild.channels is 300-500ms and delays modal popup).
if let Some(guild_id) = interaction.guild_id {
if let Some(pool) = service::pool() {
if let Some(reason) =
@ -185,25 +185,6 @@ pub async fn on_select(ctx: Context, interaction: ComponentInteraction) {
return;
}
}
if let Ok(channels) = guild_id.channels(&ctx.http).await {
let exists = channels.values().any(|c| {
c.name.starts_with(&format!("ticket-{}", interaction.user.name.to_lowercase()))
|| c.name.starts_with(&format!("ticket-{}", interaction.user.id))
});
if exists {
let _ = interaction
.create_response(
&ctx.http,
CreateInteractionResponse::Message(
CreateInteractionResponseMessage::new()
.content("You already have an open ticket.")
.ephemeral(true),
),
)
.await;
return;
}
}
}
let modal = CreateModal::new(format!("ticket_modal:{topic}"), format!("New ticket • {label}"))
.components(vec![
@ -268,17 +249,24 @@ pub async fn on_modal(ctx: Context, interaction: ModalInteraction) {
return;
};
let user = interaction.user.clone();
// Re-check blacklist / duplicate (race between modal open and submit)
// Defer immediately — Discord channel creation is slow (1-2s), avoid 3s timeout and UI lag
let _ = interaction
.create_response(
&ctx.http,
CreateInteractionResponse::Defer(
CreateInteractionResponseMessage::new().ephemeral(true),
),
)
.await;
// Re-check blacklist / duplicate after defer (race between modal open and submit)
if let Some(pool) = service::pool() {
if let Some(reason) = service::is_blacklisted(pool, guild_id.get(), user.id.get()).await {
let _ = interaction
.create_response(
.create_followup(
&ctx.http,
CreateInteractionResponse::Message(
CreateInteractionResponseMessage::new()
.content(format!("You are blacklisted: {reason}"))
.ephemeral(true),
),
serenity::all::CreateInteractionResponseFollowup::new()
.content(format!("You are blacklisted: {reason}"))
.ephemeral(true),
)
.await;
return;
@ -291,27 +279,16 @@ pub async fn on_modal(ctx: Context, interaction: ModalInteraction) {
});
if exists {
let _ = interaction
.create_response(
.create_followup(
&ctx.http,
CreateInteractionResponse::Message(
CreateInteractionResponseMessage::new()
.content("You already have an open ticket.")
.ephemeral(true),
),
serenity::all::CreateInteractionResponseFollowup::new()
.content("You already have an open ticket.")
.ephemeral(true),
)
.await;
return;
}
}
// Defer ephemeral thinking before heavy channel create (avoid 3s timeout)
let _ = interaction
.create_response(
&ctx.http,
CreateInteractionResponse::Defer(
CreateInteractionResponseMessage::new().ephemeral(true),
),
)
.await;
// Use helper that supports details
match create_ticket_channel(&ctx, guild_id, &user, topic, label, &subject, &description).await {
Ok(channel_id) => {