fix contact exception

src/user/contact.ts

@@ -201,6 +201,8 @@ export class Contact extends Accessory implements Sayable {
       const CHUNK_SIZE = 16
       let   batchIndex = 0
 
+      const invalidContactId: string[] = []
+
       while (batchIndex * CHUNK_SIZE < contactList.length) {
         const batchContactList = contactList.slice(
           CHUNK_SIZE * batchIndex,
@@ -208,14 +210,20 @@ export class Contact extends Accessory implements Sayable {
         )
         await Promise.all(
           batchContactList.map(
-            c => c.ready(),
+            c => {
+              c.ready()
+              .catch(e => {
+                log.error('Contact', 'findAll() ready() exception: %s', e.message)
+                invalidContactId.push(c.id)
+              })
+            },
           ),
         )
 
         batchIndex++
       }
 
-      return contactList
+      return contactList.filter(contact => !(contact.id in invalidContactId))
 
     } catch (e) {
       log.error('Contact', 'this.puppet.contactFindAll() rejected: %s', e.message)
@@ -268,11 +276,10 @@ export class Contact extends Accessory implements Sayable {
    * @private
    */
   public toString(): string {
-    if (!this.payload) {
-      return this.constructor.name
-    }
-    const identity = this.payload.alias || this.payload.name || this.id
-    return `Contact<${identity || 'Unknown'}>`
+    const identity = this.payload
+      ? this.payload.alias || this.payload.name || this.id
+      : this.id
+    return `Contact<${identity}>`
   }
 
   /**