feat: Added WPP.chat.getPlatformFromMessage function

src/chat/functions/getPlatformFromMessage.ts

@@ -0,0 +1,70 @@
+/*!
+ * Copyright 2021 WPPConnect Team
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { Stringable } from '../../types';
+import { MsgKey, MsgModel } from '../../whatsapp';
+
+/**
+ * Get the platform message from message ID
+ *
+ * The platform can be:
+ * * android
+ * * iphone
+ * * web
+ * * unknown
+ *
+ * @example
+ * ```javascript
+ * // to get platform from a message
+ * const platform = WPP.chat.getPlatformFromMessage('[message_id]');
+ * ```
+ * @category Message
+ */
+export function getPlatformFromMessage(
+  messageId: string | MsgKey | MsgModel | Stringable
+): 'android' | 'iphone' | 'web' | 'unknown' {
+  if (
+    !(messageId instanceof MsgModel) &&
+    typeof messageId !== 'string' &&
+    typeof messageId.toString === 'function'
+  ) {
+    messageId = messageId.toString();
+  }
+
+  if (messageId instanceof MsgModel) {
+    messageId = messageId.id;
+  }
+
+  /**
+   * Based Bailyes
+   * @see https://github.com/adiwajshing/Baileys/blob/19484e5cfced4c2d229687e74f714534375a57a3/src/Utils/messages.ts#L600
+   */
+  const msgKey = MsgKey.fromString(messageId.toString());
+
+  if (msgKey.id.length > 21) {
+    return 'android';
+  }
+
+  if (msgKey.id.startsWith('3A')) {
+    return 'iphone';
+  }
+
+  if (msgKey.id.startsWith('3EB0')) {
+    return 'web';
+  }
+
+  return 'unknown';
+}

src/chat/functions/index.ts

@@ -27,6 +27,7 @@ export { get } from './get';
 export { getLastSeen } from './getLastSeen';
 export { getMessageById } from './getMessageById';
 export { getMessages, GetMessagesOptions } from './getMessages';
+export { getPlatformFromMessage } from './getPlatformFromMessage';
 export { ChatListOptions, list } from './list';
 export { markIsComposing } from './markIsComposing';
 export { markIsPaused } from './markIsPaused';