From 6f9d07f2c5c377750a13f624716ecb8419390d87 Mon Sep 17 00:00:00 2001
From: Skillz <gankstarsleague@gmail.com>
Date: Tue, 14 Jul 2020 14:30:15 -0400
Subject: [PATCH] add allowed mentions support

---
 handlers/channel.ts | 26 ++++++++++++++++++++++++++
 types/channel.ts    |  8 ++++++++
 2 files changed, 34 insertions(+)

diff --git a/handlers/channel.ts b/handlers/channel.ts
index ee0f3f89d..71b34ec3a 100644
--- a/handlers/channel.ts
+++ b/handlers/channel.ts
@@ -134,6 +134,32 @@ export async function sendMessage(
     throw new Error(Errors.MESSAGE_MAX_LENGTH);
   }
 
+  if (content.mentions) {
+    if (content.mentions.users?.length) {
+      if (content.mentions.parse.includes("users")) {
+        content.mentions.parse = content.mentions.parse.filter((p) =>
+          p !== "users"
+        );
+      }
+
+      if (content.mentions.users.length > 100) {
+        content.mentions.users = content.mentions.users.slice(0, 100);
+      }
+    }
+
+    if (content.mentions.roles?.length) {
+      if (content.mentions.parse.includes("roles")) {
+        content.mentions.parse = content.mentions.parse.filter((p) =>
+          p !== "roles"
+        );
+      }
+
+      if (content.mentions.roles.length > 100) {
+        content.mentions.roles = content.mentions.roles.slice(0, 100);
+      }
+    }
+  }
+
   const result = await RequestManager.post(
     endpoints.CHANNEL_MESSAGES(channel.id),
     content,
diff --git a/types/channel.ts b/types/channel.ts
index 93be9766b..a3eb7f5ab 100644
--- a/types/channel.ts
+++ b/types/channel.ts
@@ -105,6 +105,14 @@ export enum ChannelTypes {
 // }
 
 export interface MessageContent {
+  mentions?: {
+    /** An array of allowed mention types to parse from the content. */
+    parse: ("roles" | "users" | "everyone")[],
+    /** Array of role_ids to mention (Max size of 100) */
+    roles?: string[],
+    /** Array of user_ids to mention (Max size of 100) */
+    users?: string[]
+  },
   /** The message contents, up to 2000 characters */
   content?: string;
   /** A nonce that can be used for optimistic message sending. */