refactor: rename controllers to handlers and handlers to helpers (#660)

* refactor: rename controllers to handlers and handlers to helpers

* fmt

src/handlers/messages/MESSAGE_DELETE_BULK.ts

@@ -0,0 +1,17 @@
+import { eventHandlers } from "../../bot.ts";
+import { DiscordPayload, MessageDeleteBulkPayload } from "../../types/mod.ts";
+import { cacheHandlers } from "../../cache.ts";
+
+export async function handleMessageDeleteBulk(data: DiscordPayload) {
+  const payload = data.d as MessageDeleteBulkPayload;
+  const channel = await cacheHandlers.get("channels", payload.channel_id);
+  if (!channel) return;
+
+  return Promise.all(payload.ids.map(async (id) => {
+    eventHandlers.messageDelete?.(
+      { id, channel },
+      await cacheHandlers.get("messages", id),
+    );
+    await cacheHandlers.delete("messages", id);
+  }));
+}