feat: initial prototype

src/events/onMessage.ts

@@ -0,0 +1,38 @@
+/**
+ * @copyright NHCarrigan
+ * @license Naomi's Public License
+ * @author Naomi Carrigan
+ */
+
+import {
+  ChannelType,
+  type Message,
+  type OmitPartialGroupDMChannel,
+} from "discord.js";
+import { handleDmMessage } from "./handleDmMessage.js";
+import { handleThreadMessage } from "./handleThreadMessage.js";
+
+/**
+ * Handles the message event from Discord.
+ * @param message -- The message payload from Discord.
+ */
+export const onMessage = async(
+  message: OmitPartialGroupDMChannel<Message>,
+): Promise<void> => {
+  if (message.channel.type === ChannelType.DM) {
+    await handleDmMessage(message);
+    return;
+  }
+  // This should not be true at this point, but we need to narrow this.
+  if (!message.inGuild()) {
+    return;
+  }
+  if (
+    message.channel.type === ChannelType.PublicThread
+    || message.channel.type === ChannelType.PrivateThread
+  ) {
+    await handleThreadMessage(message);
+    return;
+  }
+  void message;
+};