Add cache helper to update user cache every 30 minutes

src/helpers/CacheHelper.ts

@@ -0,0 +1,27 @@
+import { Guild } from "discord.js";
+import Server from "../database/entities/Server";
+
+export default class CacheHelper {
+    public static async UpdateServerCache(guild: Guild) {
+        const cacheInterval = process.env.CACHE_INTERVAL;
+
+        if (!cacheInterval) return;
+
+        let server = await Server.FetchOneById(Server, guild.id);
+
+        if (!server) {
+            server = new Server(guild.id);
+            await server.Save(Server, server);
+
+            await CacheHelper.UpdateCache(guild);
+        } else if (server.LastCached.getTime() + Number(cacheInterval) < Date.now()) {
+            await CacheHelper.UpdateCache(guild);
+        }
+    }
+
+    private static async UpdateCache(guild: Guild) {
+        console.log(`Updating cache for ${guild.name} (${guild.id})`);
+
+        await guild.members.fetch();
+    }
+}