141 lines
4.7 KiB
JavaScript
141 lines
4.7 KiB
JavaScript
'use strict';
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const process = require('node:process');
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const CachedManager = require('./CachedManager');
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const { Channel } = require('../structures/Channel');
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// Not used: const PartialGroupDMChannel = require('../structures/PartialGroupDMChannel');
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const User = require('../structures/User');
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const { Events, ThreadChannelTypes } = require('../util/Constants');
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let cacheWarningEmitted = false;
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/**
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* A manager of channels belonging to a client
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* @extends {CachedManager}
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*/
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class ChannelManager extends CachedManager {
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constructor(client, iterable) {
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super(client, Channel, iterable);
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const defaultCaching =
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this._cache.constructor.name === 'Collection' ||
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((this._cache.maxSize === undefined || this._cache.maxSize === Infinity) &&
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(this._cache.sweepFilter === undefined || this._cache.sweepFilter.isDefault));
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if (!cacheWarningEmitted && !defaultCaching) {
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cacheWarningEmitted = true;
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process.emitWarning(
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`Overriding the cache handling for ${this.constructor.name} is unsupported and breaks functionality.`,
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'UnsupportedCacheOverwriteWarning',
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);
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}
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}
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/**
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* The cache of Channels
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* @type {Collection<Snowflake, Channel>}
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* @name ChannelManager#cache
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*/
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_add(data, guild, { cache = true, allowUnknownGuild = false, fromInteraction = false } = {}) {
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const existing = this.cache.get(data.id);
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if (existing) {
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if (cache) existing._patch(data, fromInteraction);
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guild?.channels?._add(existing);
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if (ThreadChannelTypes.includes(existing.type)) {
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existing.parent?.threads?._add(existing);
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}
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return existing;
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}
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const channel = Channel.create(this.client, data, guild, { allowUnknownGuild, fromInteraction });
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if (!channel) {
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this.client.emit(Events.DEBUG, `Failed to find guild, or unknown type for channel ${data.id} ${data.type}`);
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return null;
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}
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if (cache && !allowUnknownGuild) this.cache.set(channel.id, channel);
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return channel;
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}
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_remove(id) {
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const channel = this.cache.get(id);
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channel?.guild?.channels.cache.delete(id);
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channel?.parent?.threads?.cache.delete(id);
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this.cache.delete(id);
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}
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/**
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* Data that can be resolved to give a Channel object. This can be:
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* * A Channel object
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* * A Snowflake
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* @typedef {Channel|Snowflake} ChannelResolvable
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*/
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/**
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* Resolves a ChannelResolvable to a Channel object.
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* @method resolve
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* @memberof ChannelManager
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* @instance
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* @param {ChannelResolvable} channel The channel resolvable to resolve
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* @returns {?Channel}
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*/
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/**
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* Resolves a ChannelResolvable to a channel id string.
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* @method resolveId
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* @memberof ChannelManager
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* @instance
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* @param {ChannelResolvable} channel The channel resolvable to resolve
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* @returns {?Snowflake}
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*/
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/**
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* Options for fetching a channel from Discord
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* @typedef {BaseFetchOptions} FetchChannelOptions
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* @property {boolean} [allowUnknownGuild=false] Allows the channel to be returned even if the guild is not in cache,
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* it will not be cached. <warn>Many of the properties and methods on the returned channel will throw errors</warn>
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*/
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/**
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* Obtains a channel from Discord, or the channel cache if it's already available.
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* @param {Snowflake} id The channel's id
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* @param {FetchChannelOptions} [options] Additional options for this fetch
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* @returns {Promise<?Channel>}
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* @example
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* // Fetch a channel by its id
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* client.channels.fetch('222109930545610754')
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* .then(channel => console.log(channel.name))
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* .catch(console.error);
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*/
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async fetch(id, { allowUnknownGuild = false, cache = true, force = false } = {}) {
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if (!force) {
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const existing = this.cache.get(id);
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if (existing && !existing.partial) return existing;
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}
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const data = await this.client.api.channels(id).get();
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// Delete in cache
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this._remove(id);
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return this._add(data, null, { cache, allowUnknownGuild });
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}
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// Create Group DM
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/**
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* Create Group DM
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* @param {Array<Discord.User>} recipients Array of recipients
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* @returns {PartialGroupDMChannel} Channel
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*/
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async createGroupDM(recipients) {
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// Check
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if (!recipients || !Array.isArray(recipients)) throw new Error('No recipients || Invalid Type (Array)');
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recipients = recipients.filter(r => r instanceof User && r.id && r.friend);
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if (recipients.length < 2 || recipients.length > 9) throw new Error('Invalid Users length (2 - 9)');
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const data = await this.client.api.users['@me'].channels.post({
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data: { recipients: recipients.map(r => r.id) },
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});
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return this._add(data, null, { cache: true, allowUnknownGuild: true });
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}
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}
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module.exports = ChannelManager;
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