refactor(helpers): rename createGuildChannel to createChannel (#678)

* refactor(helpers): rename createGuildChannel to createChannel

* idk

src/helpers/channels/create_channel.ts

@@ -0,0 +1,50 @@
+import { cacheHandlers } from "../../cache.ts";
+import { RequestManager } from "../../rest/request_manager.ts";
+import { structures } from "../../structures/mod.ts";
+import {
+  ChannelCreateOptions,
+  ChannelCreatePayload,
+  ChannelTypes,
+  Permission,
+} from "../../types/mod.ts";
+import { endpoints } from "../../util/constants.ts";
+import {
+  calculateBits,
+  requireBotGuildPermissions,
+} from "../../util/permissions.ts";
+
+/** Create a channel in your server. Bot needs MANAGE_CHANNEL permissions in the server. */
+export async function createChannel(
+  guildID: string,
+  name: string,
+  options?: ChannelCreateOptions,
+) {
+  const requiredPerms: Set<Permission> = new Set(["MANAGE_CHANNELS"]);
+
+  options?.permissionOverwrites?.forEach((overwrite) => {
+    overwrite.allow.forEach(requiredPerms.add, requiredPerms);
+    overwrite.deny.forEach(requiredPerms.add, requiredPerms);
+  });
+
+  await requireBotGuildPermissions(guildID, [...requiredPerms]);
+
+  const result = (await RequestManager.post(
+    endpoints.GUILD_CHANNELS(guildID),
+    {
+      ...options,
+      name,
+      permission_overwrites: options?.permissionOverwrites?.map((perm) => ({
+        ...perm,
+
+        allow: calculateBits(perm.allow),
+        deny: calculateBits(perm.deny),
+      })),
+      type: options?.type || ChannelTypes.GUILD_TEXT,
+    },
+  )) as ChannelCreatePayload;
+
+  const channelStruct = await structures.createChannelStruct(result);
+  await cacheHandlers.set("channels", channelStruct.id, channelStruct);
+
+  return channelStruct;
+}