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

* refactor(helpers): separate functions into files

* idk

* idk

src/helpers/members/send_direct_message.ts

@@ -0,0 +1,34 @@
+import { cacheHandlers } from "../../cache.ts";
+import { RequestManager } from "../../rest/request_manager.ts";
+import { structures } from "../../structures/mod.ts";
+import {
+  ChannelCreatePayload,
+  DMChannelCreatePayload,
+  MessageContent,
+} from "../../types/mod.ts";
+import { endpoints } from "../../util/constants.ts";
+import { sendMessage } from "../messages/send_message.ts";
+
+/** Send a message to a users DM. Note: this takes 2 API calls. 1 is to fetch the users dm channel. 2 is to send a message to that channel. */
+export async function sendDirectMessage(
+  memberID: string,
+  content: string | MessageContent,
+) {
+  let dmChannel = await cacheHandlers.get("channels", memberID);
+  if (!dmChannel) {
+    // If not available in cache create a new one.
+    const dmChannelData = await RequestManager.post(
+      endpoints.USER_DM,
+      { recipient_id: memberID },
+    ) as DMChannelCreatePayload;
+    const channelStruct = await structures.createChannelStruct(
+      dmChannelData as unknown as ChannelCreatePayload,
+    );
+    // Recreate the channel and add it undert he users id
+    await cacheHandlers.set("channels", memberID, channelStruct);
+    dmChannel = channelStruct;
+  }
+
+  // If it does exist try sending a message to this user
+  return sendMessage(dmChannel.id, content);
+}