feat(vanity): Cache urls to reduce requests

src/client.ts

@@ -21,6 +21,7 @@ import { InviteCodeSettingsCache } from './invites/cache/InviteCodeSettingsCache
 import { InvitesCache } from './invites/cache/InvitesCache';
 import { LeaderboardCache } from './invites/cache/LeaderboardCache';
 import { RanksCache } from './invites/cache/RanksCache';
+import { VanityUrlCache } from './invites/cache/VanityUrlCache';
 import { CaptchaService } from './invites/services/Captcha';
 import { InvitesService } from './invites/services/Invites';
 import { TrackingService } from './invites/services/Tracking';
@@ -68,6 +69,7 @@ export interface ClientCacheObject {
 
 	inviteCodes: InviteCodeSettingsCache;
 	invites: InvitesCache;
+	vanity: VanityUrlCache;
 	leaderboard: LeaderboardCache;
 	ranks: RanksCache;
 	members: MemberSettingsCache;
@@ -201,6 +203,7 @@ export class IMClient extends Client {
 		this.cache = {
 			inviteCodes: new InviteCodeSettingsCache(this),
 			invites: new InvitesCache(this),
+			vanity: new VanityUrlCache(this),
 			leaderboard: new LeaderboardCache(this),
 			ranks: new RanksCache(this),
 			members: new MemberSettingsCache(this),

src/invites/cache/VanityUrlCache.ts

@@ -0,0 +1,17 @@
+import { Cache } from '../../framework/cache/Cache';
+
+export class VanityUrlCache extends Cache<string> {
+	public async init() {
+		// NO-OP
+	}
+
+	protected async _get(guildId: string): Promise<string> {
+		return (
+			this.client.guilds.get(guildId)?.vanityURL ||
+			this.client
+				.getGuildVanity(guildId)
+				.then((r) => r.code as any)
+				.catch(() => null)
+		);
+	}
+}

src/invites/commands/invites/inviteCodes.ts

@@ -54,14 +54,7 @@ export default class extends Command {
 				isWidget: !code.inviter
 			}));
 
-			const vanityInv =
-				guild.vanityURL ||
-				(await guild
-					.getVanity()
-					.then((r) => {
-						return r.code;
-					})
-					.catch(() => undefined));
+			const vanityInv = await this.client.cache.vanity.get(guild.id);
 			if (vanityInv) {
 				newDbCodes.push({
 					code: vanityInv,

src/invites/services/Tracking.ts

@@ -319,17 +319,10 @@ export class TrackingService extends IMService {
 
 		let isVanity = false;
 		if (inviteCodesUsed.length === 0) {
-			const vanityInv =
-				guild.vanityURL ||
-				(await guild
-					.getVanity()
-					.then((r) => {
-						return r.code;
-					})
-					.catch(() => undefined));
+			const vanityInv = await this.client.cache.vanity.get(guild.id);
 			if (vanityInv) {
 				isVanity = true;
-				inviteCodesUsed.push(vanityInv as string);
+				inviteCodesUsed.push(vanityInv);
 				invs.push({
 					code: vanityInv,
 					channel: null,
@@ -763,14 +756,7 @@ export class TrackingService extends IMService {
 		// Collect concurrent promises
 		const promises: any[] = [];
 
-		const vanityInv =
-			guild.vanityURL ||
-			(await guild
-				.getVanity()
-				.then((r) => {
-					return r.code;
-				})
-				.catch(() => undefined));
+		const vanityInv = await this.client.cache.vanity.get(guild.id);
 		if (vanityInv) {
 			newInviteCodes.push({
 				code: vanityInv,