refactor(helpers): separate functions into files (#667)

* refactor(helpers): separate functions into files

* idk

* idk

src/helpers/invites/delete_invite.ts

@@ -0,0 +1,27 @@
+import { cacheHandlers } from "../../cache.ts";
+import { RequestManager } from "../../rest/request_manager.ts";
+import { Errors, InvitePayload } from "../../types/mod.ts";
+import { endpoints } from "../../util/constants.ts";
+import {
+  botHasChannelPermissions,
+  requireBotGuildPermissions,
+} from "../../util/permissions.ts";
+
+/** Deletes an invite for the given code. Requires `MANAGE_CHANNELS` or `MANAGE_GUILD` permission */
+export async function deleteInvite(channelID: string, inviteCode: string) {
+  const channel = await cacheHandlers.get("channels", channelID);
+
+  if (!channel) throw new Error(Errors.CHANNEL_NOT_FOUND);
+
+  const hasPerm = await botHasChannelPermissions(channel, [
+    "MANAGE_CHANNELS",
+  ]);
+
+  if (!hasPerm) {
+    await requireBotGuildPermissions(channel!.guildID, ["MANAGE_GUILD"]);
+  }
+
+  const result = await RequestManager.delete(endpoints.INVITE(inviteCode));
+
+  return result as InvitePayload;
+}