feat: Add "deleted" property to multiple structures. (#2556)

* Add "deleted" property to "Message" structure

* Add "deleted" property to Multiple structures

Structures edited:
- Channel
- Emoji
- Guild
- Guild Member
- Role

* Update "deletable" getter

* Fix ESLint "no-trailing-spaces" errors

* Requested Change: Mark w/ bulkDelete

src/structures/Channel.js

@@ -23,6 +23,12 @@ class Channel extends Base {
      */
     this.type = type ? type.toLowerCase() : 'unknown';
 
+    /**
+     * Whether the channel has been deleted
+     * @type {boolean}
+     */
+    this.deleted = false;
+
     if (data) this._patch(data);
   }
 

src/structures/Emoji.js

@@ -24,6 +24,12 @@ class Emoji extends Base {
      * @type {?Snowflake}
      */
     this.id = emoji.id;
+
+    /**
+     * Whether this emoji has been deleted
+     * @type {boolean}
+     */
+    this.deleted = false;
   }
 
   /**

src/structures/Guild.js

@@ -50,6 +50,12 @@ class Guild extends Base {
      */
     this.presences = new PresenceStore(this.client);
 
+    /**
+     * Whether the bot has been removed from the guild
+     * @type {boolean}
+     */
+    this.deleted = false;
+
     if (!data) return;
     if (data.unavailable) {
       /**

src/structures/GuildMember.js

@@ -39,6 +39,12 @@ class GuildMember extends Base {
      */
     this.lastMessageChannelID = null;
 
+    /**
+     * Whether the member has been removed from the guild
+     * @type {boolean}
+     */
+    this.deleted = false;
+
     this._roles = [];
     if (data) this._patch(data);
   }

src/structures/Message.js

@@ -157,6 +157,12 @@ class Message extends Base {
      * @private
      */
     this._edits = [];
+
+    /**
+     * Whether this message has been deleted
+     * @type {boolean}
+     */
+    this.deleted = false;
   }
 
   /**
@@ -341,9 +347,9 @@ class Message extends Base {
    * @readonly
    */
   get deletable() {
-    return this.author.id === this.client.user.id || (this.guild &&
+    return !this.deleted && (this.author.id === this.client.user.id || (this.guild &&
       this.channel.permissionsFor(this.client.user).has(Permissions.FLAGS.MANAGE_MESSAGES)
-    );
+    ));
   }
 
   /**

src/structures/Role.js

@@ -69,6 +69,12 @@ class Role extends Base {
      * @type {boolean}
      */
     this.mentionable = data.mentionable;
+
+    /**
+     * Whether the role has been deleted
+     * @type {boolean}
+     */
+    this.deleted = false;
   }
 
   /**