fix: Add protocolMessageKey and fix revoked messages to preserve original before.id (#3715)

* Add protocolMessageKey and fix revoke

* Add protocolMessageKey and fix revoke

* docs: add explanation

index.d.ts

@@ -1086,6 +1086,11 @@ declare namespace WAWebJS {
         latestEditSenderTimestampMs?: number,
         /** Last edit message author */
         latestEditMsgKey?: MessageId,
+        /**
+         * Protocol message key.
+         * Can be used to retrieve the ID of an original message that was revoked.
+         */
+        protocolMessageKey?: MessageId,
         /** Message buttons */
         dynamicReplyButtons?: object,
         /** Selected button ID */

src/Client.js

@@ -468,6 +468,9 @@ class Client extends EventEmitter {
                 let revoked_msg;
                 if (last_message && msg.id.id === last_message.id.id) {
                     revoked_msg = new Message(this, last_message);
+
+                    if (message.protocolMessageKey)
+                        revoked_msg.id = { ...message.protocolMessageKey };                    
                 }
 
                 /**

src/structures/Message.js

@@ -258,6 +258,14 @@ class Message extends Base {
             this.latestEditMsgKey = data.latestEditMsgKey;
         }
         
+        /**
+         * Protocol message key.
+         * Can be used to retrieve the ID of an original message that was revoked.
+         */
+        if (data.protocolMessageKey) {
+            this.protocolMessageKey = data.protocolMessageKey;
+        }
+
         /**
          * Links included in the message.
          * @type {Array<{link: string, isSuspicious: boolean}>}