timezones are now queried at launch rather than every time the timezone command is used

Cargo.lock

@@ -1314,7 +1314,7 @@ dependencies = [
 
 [[package]]
 name = "reminder_rs"
-version = "1.4.1"
+version = "1.4.2"
 dependencies = [
  "Inflector",
  "chrono",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "reminder_rs"
-version = "1.4.1"
+version = "1.4.2"
 authors = ["jellywx <judesouthworth@pm.me>"]
 edition = "2018"
 

src/commands/moderation_cmds.rs

@@ -25,7 +25,7 @@ use crate::{
     framework::SendIterator,
     get_ctx_data,
     models::{ChannelData, GuildData, UserData},
-    FrameworkCtx,
+    FrameworkCtx, PopularTimezones,
 };
 
 use std::{collections::HashMap, iter, time::Duration};
@@ -177,20 +177,21 @@ async fn timezone(ctx: &Context, msg: &Message, args: String) {
             &GuildData::prefix_from_id(msg.guild_id, &pool).await,
         );
 
-        let popular_timezones = sqlx::query!(
-            "SELECT timezone FROM users GROUP BY timezone ORDER BY COUNT(timezone) DESC LIMIT 20"
-        )
-        .fetch_all(&pool)
+        let popular_timezones = ctx
+            .data
+            .read()
             .await
+            .get::<PopularTimezones>()
+            .cloned()
             .unwrap();
 
         let popular_timezones_iter = popular_timezones.iter().map(|t| {
             (
-                t.timezone.clone(),
+                t.to_string(),
                 format!(
                     "🕗 `{}`",
                     Utc::now()
-                        .with_timezone(&t.timezone.parse::<Tz>().unwrap())
+                        .with_timezone(t)
                         .format(user_data.meridian().fmt_str_short())
                         .to_string()
                 ),

src/main.rs

@@ -42,6 +42,8 @@ use serenity::futures::TryFutureExt;
 use inflector::Inflector;
 use log::info;
 
+use chrono_tz::Tz;
+
 struct SQLPool;
 
 impl TypeMapKey for SQLPool {
@@ -60,6 +62,12 @@ impl TypeMapKey for FrameworkCtx {
     type Value = Arc<Box<dyn Framework + Send + Sync>>;
 }
 
+struct PopularTimezones;
+
+impl TypeMapKey for PopularTimezones {
+    type Value = Arc<Vec<Tz>>;
+}
+
 struct Handler;
 
 #[async_trait]
@@ -249,9 +257,20 @@ async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
         )))
         .unwrap();
 
+        let popular_timezones = sqlx::query!(
+            "SELECT timezone FROM users GROUP BY timezone ORDER BY COUNT(timezone) DESC LIMIT 21"
+        )
+        .fetch_all(&pool)
+        .await
+        .unwrap()
+        .iter()
+        .map(|t| t.timezone.parse::<Tz>().unwrap())
+        .collect::<Vec<Tz>>();
+
         let mut data = client.data.write().await;
 
         data.insert::<SQLPool>(pool);
+        data.insert::<PopularTimezones>(Arc::new(popular_timezones));
         data.insert::<ReqwestClient>(Arc::new(reqwest::Client::new()));
         data.insert::<FrameworkCtx>(framework_arc);
         data.insert::<LanguageManager>(Arc::new(language_manager))