Group participants now derive from WAContact

src/WAConnection/4.Events.ts

@@ -374,6 +374,11 @@ export class WAConnection extends Base {
         this.emit ('chat-new', chat)
         return chat
     }
+    protected contactAddOrGet (jid: string) {
+        jid = whatsappID(jid)
+        if (!this.contacts[jid]) this.contacts[jid] = { jid }
+        return this.contacts[jid]
+    }
     /** find a chat or return an error */
     protected assertChatGet = jid => {
         const chat = this.chats.get (jid)
@@ -501,18 +506,18 @@ export class WAConnection extends Base {
         if (meta) {
             switch (action) {
                 case 'add':
-                    participants.forEach(id => (
+                    participants.forEach(jid => (
-                        meta.participants.push({ id, isAdmin: false, isSuperAdmin: false })
+                        meta.participants.push({ ...this.contactAddOrGet(jid), isAdmin: false, isSuperAdmin: false })
                     ))
                     break
                 case 'remove':
-                    meta.participants = meta.participants.filter(p => !participants.includes(whatsappID(p.id)))
+                    meta.participants = meta.participants.filter(p => !participants.includes(p.jid))
                     break
                 case 'promote':
                 case 'demote':
                     const isAdmin = action==='promote'
                     meta.participants.forEach(p => {
-                        if (participants.includes(whatsappID(p.id))) p.isAdmin = isAdmin
+                        if (participants.includes( p.jid )) p.isAdmin = isAdmin
                     })
                     break
             }

src/WAConnection/8.Groups.ts

@@ -1,7 +1,7 @@
 import {WAConnection as Base} from './7.MessagesExtra'
 import { WAMetric, WAFlag, WANode, WAGroupMetadata, WAGroupCreateResponse, WAGroupModification, BaileysError } from '../WAConnection/Constants'
 import { GroupSettingChange } from './Constants'
-import { generateMessageID } from '../WAConnection/Utils'
+import { generateMessageID, whatsappID } from '../WAConnection/Utils'
 import { Mutex } from './Mutex'
 
 export class WAConnection extends Base {
@@ -41,7 +41,13 @@ export class WAConnection extends Base {
         return metadata
     }
     /** Get the metadata of the group from WA */
-    fetchGroupMetadataFromWA = (jid: string) => this.query({json: ['query', 'GroupMetadata', jid], expect200: true}) as Promise<WAGroupMetadata>
+    fetchGroupMetadataFromWA = async (jid: string) => {
+        const metadata = await this.query({json: ['query', 'GroupMetadata', jid], expect200: true}) 
+        metadata.participants = metadata.participants.map(p => (
+            { ...this.contactAddOrGet(p.id), ...p }
+        ))
+        return metadata as WAGroupMetadata
+    }
     /** Get the metadata (works after you've left the group also) */
     groupMetadataMinimal = async (jid: string) => {
         const query = ['query', {type: 'group', jid: jid, epoch: this.msgCount.toString()}, null]
@@ -56,8 +62,10 @@ export class WAConnection extends Base {
             creator: creatorDesc?.creator,
             creation: parseInt(creatorDesc?.create),
             subject: null,
-            desc: description ? description[2].toString('utf-8') : null,
+            desc: description && description[2].toString('utf-8'),
-            participants: participants.map (item => ({ id: item[1].jid, isAdmin: item[1].type==='admin' }))
+            participants: participants.map (item => (
+                { ...this.contactAddOrGet(item[1].jid), isAdmin: item[1].type === 'admin' }
+            ))
         } as WAGroupMetadata
     }
     /**

src/WAConnection/Constants.ts

@@ -168,6 +168,7 @@ export interface WAGroupCreateResponse {
     gid?: string
     participants?: [{ [key: string]: any }]
 }
+export type WAGroupParticipant = (WAContact & { isAdmin: boolean; isSuperAdmin: boolean })
 export interface WAGroupMetadata {
     id: string
     owner: string
@@ -180,7 +181,8 @@ export interface WAGroupMetadata {
     restrict?: 'true' | 'false' 
     /** is set when the group only allows admins to write messages */
     announce?: 'true' | 'false' 
-    participants: { id: string; isAdmin: boolean; isSuperAdmin: boolean }[]
+    // Baileys modified array
+    participants: WAGroupParticipant[]
 }
 export interface WAGroupModification {
     status: number