Add channel cloning

Changes:
    - Added function cloneChannel
    - Modified createChannel to support cloneChannel
   - Added clone(reason) method on channel structure
    - Added channel cloning tests

src/helpers/channels/clone_channel.ts

@@ -0,0 +1,28 @@
+import { cacheHandlers } from "../../cache.ts";
+import { createChannel } from "./create_channel.ts";
+import { CreateGuildChannel } from "../../types/guilds/create_guild_channel.ts";
+import { DiscordenoChannel } from "../../structures/channel.ts";
+
+/** Create a copy of a channel */
+export async function cloneChannel(channelId: string, reason?: string) {
+  const channelToClone: DiscordenoChannel | undefined = await cacheHandlers.get(
+    "channels",
+    channelId
+  );
+  //Return undefined if channel is not cached (unsure about error handling)
+  if (!channelToClone) return;
+
+  //If "name" is null or undefined as specified by types
+  channelToClone.name ??= "new-channel";
+
+  //Merge channel data with reason for createChannel options
+  const creationData = {
+    reason,
+    ...channelToClone,
+  };
+  //Create the channel (also handles permissions)
+  return createChannel(
+    channelToClone.guildId!,
+    creationData as CreateGuildChannel
+  );
+}

src/helpers/channels/create_channel.ts

@@ -17,14 +17,22 @@ import { calculateBits } from "../../util/permissions.ts";
 /** Create a channel in your server. Bot needs MANAGE_CHANNEL permissions in the server. */
 export async function createChannel(
   guildId: string,
-  options?: CreateGuildChannel,
+  options?: CreateGuildChannel
 ) {
   const requiredPerms: Set<PermissionStrings> = new Set(["MANAGE_CHANNELS"]);
 
+  //Integration with permissions for channel cloning
+  let useDefaultOverwrites = false;
+
   options?.permissionOverwrites?.forEach((overwrite) => {
+    if (overwrite.id && parseInt(overwrite.allow)) {
+      useDefaultOverwrites = true;
+
+      return;
+    }
     eventHandlers.debug?.(
       "loop",
-      `Running forEach loop in create_channel file.`,
+      `Running forEach loop in create_channel file.`
     );
     overwrite.allow.forEach(requiredPerms.add, requiredPerms);
     overwrite.deny.forEach(requiredPerms.add, requiredPerms);
@@ -40,14 +48,16 @@ export async function createChannel(
     endpoints.GUILD_CHANNELS(guildId),
     {
       ...camelKeysToSnakeCase<DiscordCreateGuildChannel>(options ?? {}),
-      permission_overwrites: options?.permissionOverwrites?.map((perm) => ({
+      permission_overwrites: useDefaultOverwrites
-        ...perm,
+        ? options?.permissionOverwrites
+        : options?.permissionOverwrites?.map((perm) => ({
+            ...perm,
 
-        allow: calculateBits(perm.allow),
+            allow: calculateBits(perm.allow),
-        deny: calculateBits(perm.deny),
+            deny: calculateBits(perm.deny),
-      })),
+          })),
       type: options?.type || DiscordChannelTypes.GUILD_TEXT,
-    },
+    }
   )) as DiscordChannel;
 
   const discordenoChannel = await structures.createDiscordenoChannel(result);

src/structures/channel.ts

@@ -5,6 +5,8 @@ import { deleteChannel } from "../helpers/channels/delete_channel.ts";
 import { deleteChannelOverwrite } from "../helpers/channels/delete_channel_overwrite.ts";
 import { editChannel } from "../helpers/channels/edit_channel.ts";
 import { editChannelOverwrite } from "../helpers/channels/edit_channel_overwrite.ts";
+import { createChannel } from "../helpers/channels/create_channel.ts";
+import { cloneChannel } from "../helpers/channels/clone_channel.ts";
 import { sendMessage } from "../helpers/messages/send_message.ts";
 import { disconnectMember } from "../helpers/mod.ts";
 import { Channel, DiscordChannel } from "../types/channels/channel.ts";
@@ -30,8 +32,8 @@ const baseChannel: Partial<DiscordenoChannel> = {
     return `<#${this.id!}>`;
   },
   get voiceStates() {
-    return this.guild?.voiceStates.filter((voiceState) =>
+    return this.guild?.voiceStates.filter(
-      voiceState.channelId === this.id
+      (voiceState) => voiceState.channelId === this.id
     );
   },
   get connectedMembers() {
@@ -39,7 +41,7 @@ const baseChannel: Partial<DiscordenoChannel> = {
     if (!voiceStates) return undefined;
 
     return new Collection(
-      voiceStates.map((vs, key) => [key, cache.members.get(key)]),
+      voiceStates.map((vs, key) => [key, cache.members.get(key)])
     );
   },
   send(content) {
@@ -62,19 +64,23 @@ const baseChannel: Partial<DiscordenoChannel> = {
       this.guildId!,
       this.id!,
       overwrites,
-      permissions,
+      permissions
     );
   },
   edit(options, reason) {
     return editChannel(this.id!, options, reason);
   },
+
+  clone(reason) {
+    return cloneChannel(this.id!, reason);
+  },
 };
 
 /** Create a structure object  */
 // deno-lint-ignore require-await
 export async function createDiscordenoChannel(
   data: DiscordChannel,
-  guildId?: string,
+  guildId?: string
 ) {
   const {
     guildId: rawGuildId = "",
@@ -86,7 +92,7 @@ export async function createDiscordenoChannel(
   Object.keys(rest).forEach((key) => {
     eventHandlers.debug?.(
       "loop",
-      `Running forEach loop in createDiscordenoChannel function.`,
+      `Running forEach loop in createDiscordenoChannel function.`
     );
     // @ts-ignore index signature
     props[key] = createNewProp(rest[key]);
@@ -96,7 +102,7 @@ export async function createDiscordenoChannel(
     ...props,
     guildId: createNewProp(guildId || rawGuildId),
     lastPinTimestamp: createNewProp(
-      lastPinTimestamp ? Date.parse(lastPinTimestamp) : undefined,
+      lastPinTimestamp ? Date.parse(lastPinTimestamp) : undefined
     ),
   });
 
@@ -147,20 +153,19 @@ export interface DiscordenoChannel
   /** Edit a channel Overwrite */
   editOverwrite(
     overwriteID: string,
-    options: Omit<Overwrite, "id">,
+    options: Omit<Overwrite, "id">
   ): ReturnType<typeof editChannelOverwrite>;
   /** Delete a channel Overwrite */
   deleteOverwrite(
-    overwriteID: string,
+    overwriteID: string
   ): ReturnType<typeof deleteChannelOverwrite>;
   /** Checks if a channel overwrite for a user id or a role id has permission in this channel */
   hasPermission(
     overwrites: DiscordOverwrite[],
-    permissions: PermissionStrings[],
+    permissions: PermissionStrings[]
   ): ReturnType<typeof channelOverwriteHasPermission>;
   /** Edit the channel */
-  edit(
+  edit(options: ModifyChannel, reason?: string): ReturnType<typeof editChannel>;
-    options: ModifyChannel,
+  /** Create a new channel with the same properties */
-    reason?: string,
+  clone(reason?: string): ReturnType<typeof createChannel>;
-  ): ReturnType<typeof editChannel>;
 }

tests/channels/clone_channel.ts

@@ -0,0 +1,48 @@
+import { defaultTestOptions, tempData } from "../ws/start_bot.ts";
+import { assertEquals, assertExists } from "../deps.ts";
+import { cache } from "../../src/cache.ts";
+import { cloneChannel } from "../../src/helpers/channels/clone_channel.ts";
+import { delayUntil } from "../util/delay_until.ts";
+
+Deno.test({
+  name: "[channel] clone a channel",
+  async fn() {
+    const cloned = await cloneChannel(tempData.channelId, "testing");
+
+    //Get channel that was cloned
+    const originalChannel = cache.channels.get(tempData.channelId);
+
+    //Assertation
+    assertExists(cloned);
+    assertEquals(cloned.type, originalChannel.type);
+
+    // Delay the execution to allow CHANNEL_CREATE event to be processed
+    await delayUntil(10000, () => cache.channels.has(cloned.id));
+
+    if (!cache.channels.has(cloned.id)) {
+      throw new Error(`The channel seemed to be cloned but was not cached.`);
+    }
+
+    if (originalChannel.topic && cloned.topic !== originalChannel.topic) {
+      throw new Error(
+        "The clone was supposed to have a topic but it does not appear to be the same topic."
+      );
+    }
+
+    if (originalChannel.bitrate && cloned.bitrate !== originalChannel.bitrate) {
+      throw new Error(
+        "The clone was supposed to have a bitrate but it does not appear to be the same bitrate."
+      );
+    }
+
+    if (
+      originalChannel.permissionOverwrites &&
+      cloned.permissionOverwrites?.length !==
+        originalChannel.permissionOverwrites.length
+    ) {
+      throw new Error(
+        "The clone was supposed to have a permissionOverwrites but it does not appear to be the same permissionOverwrites."
+      );
+    }
+  },
+});

tests/mod.ts

@@ -16,6 +16,7 @@ import "./guilds/create_guild.ts";
 import "./channels/category_children.ts";
 import "./channels/channel_overwrite_has_permission.ts";
 import "./channels/create_channel.ts";
+import "./channels/clone_channel.ts";
 import "./channels/delete_channel.ts";
 import "./channels/delete_channel_overwrite.ts";
 import "./channels/edit_channel.ts";