From 23d59d70ea31bbc03af9b158909794a6e3af4d47 Mon Sep 17 00:00:00 2001
From: Elysia <71698422+aiko-chan-ai@users.noreply.github.com>
Date: Tue, 21 Feb 2023 14:25:40 +0700
Subject: [PATCH] feat v13: add `addFollower` on GuildChannelManager

#9050 djs
---
 src/managers/GuildChannelManager.js | 18 ++++++++++++++++++
 src/structures/NewsChannel.js       |  1 +
 typings/index.d.ts                  |  5 +++++
 3 files changed, 24 insertions(+)

diff --git a/src/managers/GuildChannelManager.js b/src/managers/GuildChannelManager.js
index 1dc748a..85db817 100644
--- a/src/managers/GuildChannelManager.js
+++ b/src/managers/GuildChannelManager.js
@@ -228,6 +228,24 @@ class GuildChannelManager extends CachedManager {
     return new Webhook(this.client, data);
   }
 
+  /**
+   * Adds the target channel to a channel's followers.
+   * @param {NewsChannel|Snowflake} channel The channel to follow
+   * @param {TextChannelResolvable} targetChannel The channel where published announcements will be posted at
+   * @param {string} [reason] Reason for creating the webhook
+   * @returns {Promise<Snowflake>} Returns created target webhook id.
+   */
+  async addFollower(channel, targetChannel, reason) {
+    const channelId = this.resolveId(channel);
+    const targetChannelId = this.resolveId(targetChannel);
+    if (!channelId || !targetChannelId) throw new Error('GUILD_CHANNEL_RESOLVE');
+    const { webhook_id } = await this.client.api.channels[channelId].followers.post({
+      data: { webhook_channel_id: targetChannelId },
+      reason,
+    });
+    return webhook_id;
+  }
+
   /**
    * The data for a guild channel.
    * @typedef {Object} ChannelData
diff --git a/src/structures/NewsChannel.js b/src/structures/NewsChannel.js
index e2ef0a8..f8d4aae 100644
--- a/src/structures/NewsChannel.js
+++ b/src/structures/NewsChannel.js
@@ -10,6 +10,7 @@ const { Error } = require('../errors');
 class NewsChannel extends BaseGuildTextChannel {
   /**
    * Adds the target to this channel's followers.
+   * <info>If you need the created webhook id, use {@link GuildChannelManager#addFollower}.</info>
    * @param {TextChannelResolvable} channel The channel where the webhook should be created
    * @param {string} [reason] Reason for creating the webhook
    * @returns {Promise<NewsChannel>}
diff --git a/typings/index.d.ts b/typings/index.d.ts
index 4a65dca..885af82 100644
--- a/typings/index.d.ts
+++ b/typings/index.d.ts
@@ -3913,6 +3913,11 @@ export class GuildChannelManager extends CachedManager<Snowflake, GuildBasedChan
     name: string,
     options?: ChannelWebhookCreateOptions,
   ): Promise<Webhook>;
+  public addFollower(
+    channel: NewsChannel | Snowflake,
+    targetChannel: TextChannelResolvable,
+    reason?: string,
+  ): Promise<Snowflake>;
   public edit(channel: GuildChannelResolvable, data: ChannelData, reason?: string): Promise<GuildChannel>;
   public fetch(id: Snowflake, options?: BaseFetchOptions): Promise<GuildBasedChannel | null>;
   public fetch(