feat: Guild Forum channel

https://github.com/discordjs/discord.js/pull/8651

src/structures/BaseGuildTextChannel.js

@@ -2,8 +2,8 @@
 
 const GuildChannel = require('./GuildChannel');
 const TextBasedChannel = require('./interfaces/TextBasedChannel');
+const GuildTextThreadManager = require('../managers/GuildTextThreadManager');
 const MessageManager = require('../managers/MessageManager');
-const ThreadManager = require('../managers/ThreadManager');
 
 /**
  * Represents a text-based guild channel on Discord.
@@ -22,9 +22,9 @@ class BaseGuildTextChannel extends GuildChannel {
 
     /**
      * A manager of the threads belonging to this channel
-     * @type {ThreadManager}
+     * @type {GuildTextThreadManager}
      */
-    this.threads = new ThreadManager(this);
+    this.threads = new GuildTextThreadManager(this);
 
     /**
      * If the guild considers this channel NSFW

src/structures/CategoryChannel.js

@@ -40,6 +40,11 @@ class CategoryChannel extends GuildChannel {
    * @property {number} [position] Position of the new channel
    * @property {number} [rateLimitPerUser] The rate limit per user (slowmode) for the new channel in seconds
    * @property {string} [rtcRegion] The specific region of the new channel.
+   * @property {VideoQualityMode} [videoQualityMode] The camera video quality mode of the voice channel
+   * @property {GuildForumTagData[]} [availableTags] The tags that can be used in this channel (forum only).
+   * @property {DefaultReactionEmoji} [defaultReactionEmoji]
+   * The emoji to show in the add reaction button on a thread in a guild forum channel.
+   * @property {SortOrderType} [defaultSortOrder] The default sort order mode used to order posts (forum only).
    * @property {string} [reason] Reason for creating the new channel
    */
 

src/structures/Channel.js

@@ -11,6 +11,8 @@ let TextChannel;
 let ThreadChannel;
 let VoiceChannel;
 let DirectoryChannel;
+let ForumChannel;
+const ChannelFlags = require('../util/ChannelFlags');
 const { ChannelTypes, ThreadChannelTypes, VoiceBasedChannelTypes } = require('../util/Constants');
 const SnowflakeUtil = require('../util/SnowflakeUtil');
 // Const { ApplicationCommand } = require('discord.js-selfbot-v13'); - Not being used in this file, not necessary.
@@ -48,6 +50,17 @@ class Channel extends Base {
      * @type {Snowflake}
      */
     this.id = data.id;
+
+    if ('flags' in data) {
+      /**
+       * The flags that are applied to the channel.
+       * <info>This is only `null` in a {@link PartialGroupDMChannel}. In all other cases, it is not `null`.</info>
+       * @type {?Readonly<ChannelFlags>}
+       */
+      this.flags = new ChannelFlags(data.flags).freeze();
+    } else {
+      this.flags ??= new ChannelFlags().freeze();
+    }
   }
 
   /**
@@ -184,6 +197,7 @@ class Channel extends Base {
     ThreadChannel ??= require('./ThreadChannel');
     VoiceChannel ??= require('./VoiceChannel');
     DirectoryChannel ??= require('./DirectoryChannel');
+    ForumChannel ??= require('./ForumChannel');
 
     let channel;
     if (!data.guild_id && !guild) {
@@ -232,6 +246,9 @@ class Channel extends Base {
           case ChannelTypes.GUILD_DIRECTORY:
             channel = new DirectoryChannel(client, data);
             break;
+          case ChannelTypes.GUILD_FORUM:
+            channel = new ForumChannel(guild, data, client);
+            break;
         }
         if (channel && !allowUnknownGuild) guild.channels?.cache.set(channel.id, channel);
       }

src/structures/ForumChannel.js

@@ -0,0 +1,249 @@
+'use strict';
+
+const GuildChannel = require('./GuildChannel');
+const TextBasedChannel = require('./interfaces/TextBasedChannel');
+const GuildForumThreadManager = require('../managers/GuildForumThreadManager');
+const { SortOrderTypes } = require('../util/Constants');
+const { transformAPIGuildForumTag, transformAPIGuildDefaultReaction } = require('../util/Util');
+
+/**
+ * @typedef {Object} GuildForumTagEmoji
+ * @property {?Snowflake} id The id of a guild's custom emoji
+ * @property {?string} name The unicode character of the emoji
+ */
+
+/**
+ * @typedef {Object} GuildForumTag
+ * @property {Snowflake} id The id of the tag
+ * @property {string} name The name of the tag
+ * @property {boolean} moderated Whether this tag can only be added to or removed from threads
+ * by a member with the `ManageThreads` permission
+ * @property {?GuildForumTagEmoji} emoji The emoji of this tag
+ */
+
+/**
+ * @typedef {Object} GuildForumTagData
+ * @property {Snowflake} [id] The id of the tag
+ * @property {string} name The name of the tag
+ * @property {boolean} [moderated] Whether this tag can only be added to or removed from threads
+ * by a member with the `ManageThreads` permission
+ * @property {?GuildForumTagEmoji} [emoji] The emoji of this tag
+ */
+
+/**
+ * @typedef {Object} DefaultReactionEmoji
+ * @property {?Snowflake} id The id of a guild's custom emoji
+ * @property {?string} name The unicode character of the emoji
+ */
+
+/**
+ * Represents a channel that only contains threads
+ * @extends {GuildChannel}
+ * @implements {TextBasedChannel}
+ */
+class ForumChannel extends GuildChannel {
+  constructor(guild, data, client) {
+    super(guild, data, client, false);
+
+    /**
+     * A manager of the threads belonging to this channel
+     * @type {GuildForumThreadManager}
+     */
+    this.threads = new GuildForumThreadManager(this);
+
+    this._patch(data);
+  }
+
+  _patch(data) {
+    super._patch(data);
+    if ('available_tags' in data) {
+      /**
+       * The set of tags that can be used in this channel.
+       * @type {GuildForumTag[]}
+       */
+      this.availableTags = data.available_tags.map(tag => transformAPIGuildForumTag(tag));
+    } else {
+      this.availableTags ??= [];
+    }
+
+    if ('default_reaction_emoji' in data) {
+      /**
+       * The emoji to show in the add reaction button on a thread in a guild forum channel
+       * @type {?DefaultReactionEmoji}
+       */
+      this.defaultReactionEmoji = data.default_reaction_emoji
+        ? transformAPIGuildDefaultReaction(data.default_reaction_emoji)
+        : null;
+    } else {
+      this.defaultReactionEmoji ??= null;
+    }
+
+    if ('default_thread_rate_limit_per_user' in data) {
+      /**
+       * The initial rate limit per user (slowmode) to set on newly created threads in a channel.
+       * @type {?number}
+       */
+      this.defaultThreadRateLimitPerUser = data.default_thread_rate_limit_per_user;
+    } else {
+      this.defaultThreadRateLimitPerUser ??= null;
+    }
+
+    if ('rate_limit_per_user' in data) {
+      /**
+       * The rate limit per user (slowmode) for this channel.
+       * @type {?number}
+       */
+      this.rateLimitPerUser = data.rate_limit_per_user;
+    } else {
+      this.rateLimitPerUser ??= null;
+    }
+
+    if ('default_auto_archive_duration' in data) {
+      /**
+       * The default auto archive duration for newly created threads in this channel.
+       * @type {?ThreadAutoArchiveDuration}
+       */
+      this.defaultAutoArchiveDuration = data.default_auto_archive_duration;
+    } else {
+      this.defaultAutoArchiveDuration ??= null;
+    }
+
+    if ('nsfw' in data) {
+      /**
+       * If this channel is considered NSFW.
+       * @type {boolean}
+       */
+      this.nsfw = data.nsfw;
+    } else {
+      this.nsfw ??= false;
+    }
+
+    if ('topic' in data) {
+      /**
+       * The topic of this channel.
+       * @type {?string}
+       */
+      this.topic = data.topic;
+    }
+
+    if ('default_sort_order' in data) {
+      /**
+       * The default sort order mode used to order posts
+       * @type {?SortOrderType}
+       */
+      this.defaultSortOrder = SortOrderTypes[data.default_sort_order];
+    } else {
+      this.defaultSortOrder ??= null;
+    }
+  }
+
+  /**
+   * Sets the available tags for this forum channel
+   * @param {GuildForumTagData[]} availableTags The tags to set as available in this channel
+   * @param {string} [reason] Reason for changing the available tags
+   * @returns {Promise<ForumChannel>}
+   */
+  setAvailableTags(availableTags, reason) {
+    return this.edit({ availableTags, reason });
+  }
+
+  /**
+   * Sets the default reaction emoji for this channel
+   * @param {?DefaultReactionEmoji} defaultReactionEmoji The emoji to set as the default reaction emoji
+   * @param {string} [reason] Reason for changing the default reaction emoji
+   * @returns {Promise<ForumChannel>}
+   */
+  setDefaultReactionEmoji(defaultReactionEmoji, reason) {
+    return this.edit({ defaultReactionEmoji, reason });
+  }
+
+  /**
+   * Sets the default rate limit per user (slowmode) for new threads in this channel
+   * @param {number} defaultThreadRateLimitPerUser The rate limit to set on newly created threads in this channel
+   * @param {string} [reason] Reason for changing the default rate limit
+   * @returns {Promise<ForumChannel>}
+   */
+  setDefaultThreadRateLimitPerUser(defaultThreadRateLimitPerUser, reason) {
+    return this.edit({ defaultThreadRateLimitPerUser, reason });
+  }
+
+  /**
+   * Sets the default sort order mode used to order posts
+   * @param {?SortOrderType} defaultSortOrder The default sort order mode to set on this channel
+   * @param {string} [reason] Reason for changing the default sort order
+   * @returns {Promise<ForumChannel>}
+   */
+  setDefaultSortOrder(defaultSortOrder, reason) {
+    return this.edit({ defaultSortOrder, reason });
+  }
+
+  /**
+   * Creates an invite to this guild channel.
+   * @param {CreateInviteOptions} [options={}] The options for creating the invite
+   * @returns {Promise<Invite>}
+   * @example
+   * // Create an invite to a channel
+   * channel.createInvite()
+   *   .then(invite => console.log(`Created an invite with a code of ${invite.code}`))
+   *   .catch(console.error);
+   */
+  createInvite(options) {
+    return this.guild.invites.create(this.id, options);
+  }
+
+  /**
+   * Fetches a collection of invites to this guild channel.
+   * Resolves with a collection mapping invites by their codes.
+   * @param {boolean} [cache=true] Whether or not to cache the fetched invites
+   * @returns {Promise<Collection<string, Invite>>}
+   */
+  fetchInvites(cache = true) {
+    return this.guild.invites.fetch({ channelId: this.id, cache });
+  }
+
+  /**
+   * Sets the default auto archive duration for all newly created threads in this channel.
+   * @param {ThreadAutoArchiveDuration} defaultAutoArchiveDuration The new default auto archive duration
+   * @param {string} [reason] Reason for changing the channel's default auto archive duration
+   * @returns {Promise<ForumChannel>}
+   */
+  setDefaultAutoArchiveDuration(defaultAutoArchiveDuration, reason) {
+    return this.edit({ defaultAutoArchiveDuration, reason });
+  }
+
+  /**
+   * Sets a new topic for the guild channel.
+   * @param {?string} topic The new topic for the guild channel
+   * @param {string} [reason] Reason for changing the guild channel's topic
+   * @returns {Promise<ForumChannel>}
+   * @example
+   * // Set a new channel topic
+   * channel.setTopic('needs more rate limiting')
+   *   .then(newChannel => console.log(`Channel's new topic is ${newChannel.topic}`))
+   *   .catch(console.error);
+   */
+  setTopic(topic, reason) {
+    return this.edit({ topic, reason });
+  }
+
+  // These are here only for documentation purposes - they are implemented by TextBasedChannel
+  /* eslint-disable no-empty-function */
+  createWebhook() {}
+  fetchWebhooks() {}
+  setNSFW() {}
+  setRateLimitPerUser() {}
+}
+
+TextBasedChannel.applyToClass(ForumChannel, true, [
+  'send',
+  'lastMessage',
+  'lastPinAt',
+  'bulkDelete',
+  'sendTyping',
+  'createMessageCollector',
+  'awaitMessages',
+  'createMessageComponentCollector',
+  'awaitMessageComponent',
+]);
+
+module.exports = ForumChannel;

src/structures/Guild.js

@@ -564,7 +564,7 @@ class Guild extends AnonymousGuild {
 
   /**
    * Widget channel for this guild
-   * @type {?TextChannel}
+   * @type {?(TextChannel|NewsChannel|VoiceChannel|StageChannel|ForumChannel)}
    * @readonly
    */
   get widgetChannel() {

src/structures/GuildChannel.js

@@ -14,6 +14,7 @@ const Permissions = require('../util/Permissions');
  * - {@link NewsChannel}
  * - {@link StoreChannel}
  * - {@link StageChannel}
+ * - {@link ForumChannel}
  * @extends {Channel}
  * @abstract
  */

src/structures/Message.js

@@ -61,6 +61,17 @@ class Message extends Base {
      */
     this.id = data.id;
 
+    if ('position' in data) {
+      /**
+       * A generally increasing integer (there may be gaps or duplicates) that represents
+       * the approximate position of the message in a thread.
+       * @type {?number}
+       */
+      this.position = data.position;
+    } else {
+      this.position ??= null;
+    }
+
     /**
      * The timestamp the message was sent at
      * @type {number}
@@ -860,7 +871,7 @@ class Message extends Base {
 
   /**
    * Create a new public thread from this message
-   * @see ThreadManager#create
+   * @see GuildTextThreadManager#create
    * @param {StartThreadOptions} [options] Options for starting a thread on this message
    * @returns {Promise<ThreadChannel>}
    */

src/structures/MessagePayload.js

@@ -144,9 +144,11 @@ class MessagePayload {
 
     let username;
     let avatarURL;
+    let threadName;
     if (isWebhook) {
       username = this.options.username ?? this.target.name;
       if (this.options.avatarURL) avatarURL = this.options.avatarURL;
+      if (this.options.threadName) threadName = this.options.threadName;
     }
 
     let flags;
@@ -259,6 +261,7 @@ class MessagePayload {
       message_reference,
       attachments: this.options.attachments,
       sticker_ids: this.options.stickers?.map(sticker => sticker.id ?? sticker),
+      thread_name: threadName,
     };
     return this;
   }

src/structures/PartialGroupDMChannel.js

@@ -17,6 +17,10 @@ const DataResolver = require('../util/DataResolver');
 class PartialGroupDMChannel extends Channel {
   constructor(client, data) {
     super(client, data);
+
+    // No flags are present when fetching partial group DM channels.
+    this.flags = null;
+
     /**
      * The name of this Group DM Channel
      * @type {?string}

src/structures/ThreadChannel.js

@@ -158,9 +158,8 @@ class ThreadChannel extends Channel {
 
     if ('message_count' in data) {
       /**
-       * The approximate count of messages in this thread
-       * <info>This stops counting at 50. If you need an approximate value higher than that, use
-       * `ThreadChannel#messages.cache.size`</info>
+       * <info>Threads created before July 1, 2022 may have an inaccurate count.
+       * If you need an approximate value higher than that, use `ThreadChannel#messages.cache.size`</info>
        * @type {?number}
        */
       this.messageCount = data.message_count;
@@ -180,6 +179,27 @@ class ThreadChannel extends Channel {
       this.memberCount ??= null;
     }
 
+    if ('total_message_sent' in data) {
+      /**
+       * The number of messages ever sent in a thread, similar to {@link ThreadChannel#messageCount} except it
+       * will not decrement whenever a message is deleted
+       * @type {?number}
+       */
+      this.totalMessageSent = data.total_message_sent;
+    } else {
+      this.totalMessageSent ??= null;
+    }
+
+    if ('applied_tags' in data) {
+      /**
+       * The tags applied to this thread
+       * @type {Snowflake[]}
+       */
+      this.appliedTags = data.applied_tags;
+    } else {
+      this.appliedTags ??= [];
+    }
+
     if (data.member && this.client.user) this.members._add({ user_id: this.client.user.id, ...data.member });
     if (data.messages) for (const message of data.messages) this.messages._add(message);
   }
@@ -225,7 +245,7 @@ class ThreadChannel extends Channel {
 
   /**
    * The parent channel of this thread
-   * @type {?(NewsChannel|TextChannel)}
+   * @type {?(NewsChannel|TextChannel|ForumChannel)}
    * @readonly
    */
   get parent() {
@@ -280,14 +300,16 @@ class ThreadChannel extends Channel {
 
   /**
    * Fetches the message that started this thread, if any.
-   * <info>This only works when the thread started from a message in the parent channel, otherwise the promise will
-   * reject. If you just need the id of that message, use {@link ThreadChannel#id} instead.</info>
+   * <info>The `Promise` will reject if the original message in a forum post is deleted
+   * or when the original message in the parent channel is deleted.
+   * If you just need the id of that message, use {@link ThreadChannel#id} instead.</info>
    * @param {BaseFetchOptions} [options] Additional options for this fetch
    * @returns {Promise<Message|null>}
    */
   // eslint-disable-next-line require-await
   async fetchStarterMessage(options) {
-    return this.parent?.messages.fetch(this.id, options) ?? null;
+    const channel = this.parent?.type === 'GUILD_FORUM' ? this : this.parent;
+    return channel?.messages.fetch({ message: this.id, ...options }) ?? null;
   }
 
   /**
@@ -326,6 +348,7 @@ class ThreadChannel extends Channel {
         rate_limit_per_user: data.rateLimitPerUser,
         locked: data.locked,
         invitable: this.type === 'GUILD_PRIVATE_THREAD' ? data.invitable : undefined,
+        applied_tags: data.appliedTags,
       },
       reason,
     });
@@ -333,6 +356,16 @@ class ThreadChannel extends Channel {
     return this.client.actions.ChannelUpdate.handle(newData).updated;
   }
 
+  /**
+   * Set the applied tags for this channel (only applicable to forum threads)
+   * @param {Snowflake[]} appliedTags The tags to set for this channel
+   * @param {string} [reason] Reason for changing the thread's applied tags
+   * @returns {Promise<GuildForumThreadChannel>}
+   */
+  setAppliedTags(appliedTags, reason) {
+    return this.edit({ appliedTags, reason });
+  }
+
   /**
    * Sets whether the thread is archived.
    * @param {boolean} [archived=true] Whether the thread is archived

src/structures/Webhook.js

@@ -132,6 +132,7 @@ class Webhook {
    * Action rows containing interactive components for the message (buttons, select menus)
    * @property {Snowflake} [threadId] The id of the thread this message belongs to
    * <info>For interaction webhooks, this property is ignored</info>
+   * @property {string} [threadName] Name of the thread to create (only available if webhook is in a forum channel)
    */
 
   /**

src/structures/WelcomeChannel.js

@@ -42,7 +42,7 @@ class WelcomeChannel extends Base {
 
   /**
    * The channel of this welcome channel
-   * @type {?(TextChannel|NewsChannel|StoreChannel)}
+   * @type {?(TextChannel|NewsChannel|StoreChannel|ForumChannel)}
    */
   get channel() {
     return this.client.channels.resolve(this.channelId);