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

* refactor: rename controllers to handlers and handlers to helpers

* fmt

src/handlers/messages/MESSAGE_UPDATE.ts

@@ -0,0 +1,36 @@
+import { eventHandlers } from "../../bot.ts";
+import { DiscordPayload, MessageCreateOptions } from "../../types/mod.ts";
+import { structures } from "../../structures/mod.ts";
+import { cacheHandlers } from "../../cache.ts";
+
+export async function handleMessageUpdate(data: DiscordPayload) {
+  const payload = data.d as MessageCreateOptions;
+  const channel = await cacheHandlers.get("channels", payload.channel_id);
+  if (!channel) return;
+
+  const cachedMessage = await cacheHandlers.get("messages", payload.id);
+  if (!cachedMessage) return;
+
+  const oldMessage = {
+    attachments: cachedMessage.attachments,
+    content: cachedMessage.content,
+    embeds: cachedMessage.embeds,
+    editedTimestamp: cachedMessage.editedTimestamp,
+    tts: cachedMessage.tts,
+    pinned: cachedMessage.pinned,
+  };
+
+  // Messages with embeds can trigger update but they wont have edited_timestamp
+  if (
+    !payload.edited_timestamp ||
+    (cachedMessage.content === payload.content)
+  ) {
+    return;
+  }
+
+  const message = await structures.createMessageStruct(payload);
+
+  await cacheHandlers.set("messages", payload.id, message);
+
+  eventHandlers.messageUpdate?.(message, oldMessage);
+}