Support delay to accept room invitation (#1910)

* 0.29.3

* feat: support delay accept room invitation

* 0.31.4

* modify: bump wechaty-puppet version up

* modify: add examples for the new methods.

* modify: refactor

* modify: bump wechaty-puppet version

package.json

@@ -97,7 +97,7 @@
     "read-pkg-up": "^7.0.0",
     "state-switch": "^0.6.2",
     "watchdog": "^0.8.1",
-    "wechaty-puppet": "^0.19.1",
+    "wechaty-puppet": "^0.19.5",
     "ws": "^7.0.0"
   },
   "devDependencies": {

src/user/room-invitation.ts

@@ -37,6 +37,7 @@ import {
 import {
   Contact,
 }               from './contact'
+import { RoomInvitationPayload } from 'wechaty-puppet'
 
 /**
  *
@@ -267,4 +268,51 @@ export class RoomInvitation extends Accessory implements Acceptable {
     return ageSeconds
   }
 
+  /**
+   * Load the room invitation info from disk
+   *
+   * @returns {RoomInvitation}
+   * @example
+   * const bot = new Wechaty()
+   * const dataFromDisk // get the room invitation info data from disk
+   * const roomInvitation = await bot.RoomInvitation.fromJSON(dataFromDisk)
+   * await roomInvitation.accept()
+   */
+  public static async fromJSON (
+    payload: string | RoomInvitationPayload,
+  ): Promise<RoomInvitation> {
+    log.verbose('RoomInvitation', 'fromJSON(%s)',
+      typeof payload === 'string'
+        ? payload
+        : JSON.stringify(payload),
+    )
+
+    if (typeof payload === 'string') {
+      payload = JSON.parse(payload) as RoomInvitationPayload
+    }
+
+    await this.puppet.roomInvitationPayload(payload.id, payload)
+
+    return this.wechaty.RoomInvitation.load(payload.id)
+  }
+
+  /**
+   * Get the room invitation info when listened on room-invite event
+   *
+   * @returns {string}
+   * @example
+   * const bot = new Wechaty()
+   * bot.on('room-invite', async roomInvitation => {
+   *  const roomInvitation = bot.RoomInvitation.load(roomInvitation.id)
+   *  const jsonData = await roomInvitation.toJSON(roomInvitation.id)
+   *  // save the json data to disk, and we can use it by RoomInvitation.fromJSON()
+   * }
+   * .start()
+   */
+  public async toJSON (): Promise<string> {
+    log.verbose('RoomInvitation', `toJSON()`)
+    const payload = await this.puppet.roomInvitationPayload(this.id)
+    return JSON.stringify(payload)
+  }
+
 }