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

* refactor: rename controllers to handlers and handlers to helpers

* fmt

src/handlers/guilds/GUILD_CREATE.ts

@@ -0,0 +1,32 @@
+import { eventHandlers } from "../../bot.ts";
+import { CreateGuildPayload, DiscordPayload } from "../../types/mod.ts";
+import { cache } from "../../util/cache.ts";
+import { basicShards } from "../../ws/shard.ts";
+import { structures } from "../../structures/mod.ts";
+import { cacheHandlers } from "../../cache.ts";
+
+export async function handleGuildCreate(
+  data: DiscordPayload,
+  shardID: number,
+) {
+  const payload = data.d as CreateGuildPayload;
+  // When shards resume they emit GUILD_CREATE again.
+  if (await cacheHandlers.has("guilds", payload.id)) return;
+
+  const guildStruct = await structures.createGuildStruct(
+    data.d as CreateGuildPayload,
+    shardID,
+  );
+  await cacheHandlers.set("guilds", guildStruct.id, guildStruct);
+
+  const shard = basicShards.get(shardID);
+
+  if (shard?.unavailableGuildIDs.has(payload.id)) {
+    await cacheHandlers.delete("unavailableGuilds", payload.id);
+
+    shard.unavailableGuildIDs.delete(payload.id);
+  }
+
+  if (!cache.isReady) return eventHandlers.guildLoaded?.(guildStruct);
+  eventHandlers.guildCreate?.(guildStruct);
+}