Implement toContact() method (#1868)

* feat: implement toContact() method

* modify: bump version

package.json

 {
   "name": "wechaty",
-  "version": "0.29.3",
+  "version": "0.29.4",
   "description": "Wechaty is a Bot SDK for Wechat Personal Account",
   "main": "dist/src/index.js",
   "typings": "dist/src/index.d.ts",
@@ -98,7 +98,7 @@
     "semver": "^6.0.0",
     "state-switch": "^0.6.2",
     "watchdog": "^0.8.1",
-    "wechaty-puppet": "^0.16.1",
+    "wechaty-puppet": "^0.17.1",
     "ws": "^7.0.0"
   },
   "devDependencies": {

src/user/message.ts

@@ -900,14 +900,20 @@ export class Message extends Accessory implements Sayable {
    * @returns {Promise<Contact>}
    */
   public async toContact (): Promise<Contact> {
-    log.warn('Message', 'toContact() to be implemented')
+    log.verbose('Message', 'toContact()')
 
-    if (this.type() === Message.Type.Contact) {
+    if (this.type() !== Message.Type.Contact) {
       throw new Error('message not a ShareCard')
     }
 
-    // TODO: return the ShareCard Contact
-    const contact = this.wechaty.userSelf()
+    const contactId = await this.puppet.messageContact(this.id)
+
+    if (!contactId) {
+      throw new Error(`can not get Contact id by message: ${contactId}`)
+    }
+
+    const contact = this.wechaty.Contact.load(contactId)
+    await contact.ready()
     return contact
   }