extracted event handler. removed custom sharding code. extracted util functions

src/utils.rs

@@ -0,0 +1,37 @@
+use serenity::{
+    http::CacheHttp,
+    model::id::{GuildId, UserId},
+};
+
+use crate::consts::{CNC_GUILD, SUBSCRIPTION_ROLES};
+
+pub async fn check_subscription(cache_http: impl CacheHttp, user_id: impl Into<UserId>) -> bool {
+    if let Some(subscription_guild) = *CNC_GUILD {
+        let guild_member = GuildId(subscription_guild).member(cache_http, user_id).await;
+
+        if let Ok(member) = guild_member {
+            for role in member.roles {
+                if SUBSCRIPTION_ROLES.contains(role.as_u64()) {
+                    return true;
+                }
+            }
+        }
+
+        false
+    } else {
+        true
+    }
+}
+
+pub async fn check_guild_subscription(
+    cache_http: impl CacheHttp,
+    guild_id: impl Into<GuildId>,
+) -> bool {
+    if let Some(guild) = cache_http.cache().unwrap().guild(guild_id) {
+        let owner = guild.owner_id;
+
+        check_subscription(&cache_http, owner).await
+    } else {
+        false
+    }
+}