Fix pfp change notification (#323)

* Crash if chat is already deleted

* Crash if chat is already deleted (#321) (#322)

* Update messages-recv.ts

* Update make-in-memory-store.ts

* Update messages-recv.ts

* Update make-in-memory-store.ts

* Fix store errors

* Fix hash issue

* Fix eslint

* Update messages-recv.ts

* Update messages-recv.ts

* ESLint final

* no more eslint errors!

src/Socket/messages-recv.ts

@@ -378,8 +378,8 @@ export const makeMessagesRecvSocket = (config: SocketConfig) => {
 			const delPicture = getBinaryNodeChild(node, 'delete')
 
 			ev.emit('contacts.update', [{
-				id: from,
+				id: jidNormalizedUser(node?.attrs?.jid) || ((setPicture || delPicture)?.attrs?.hash) || '',
-				imgUrl: setPicture ? 'changed' : null
+				imgUrl: setPicture ? 'changed' : 'removed'
 			}])
 
 			if(isJidGroup(from)) {

src/Store/make-in-memory-store.ts

@@ -7,7 +7,7 @@ import type makeMDSocket from '../Socket'
 import type { BaileysEventEmitter, Chat, ConnectionState, Contact, GroupMetadata, PresenceData, WAMessage, WAMessageCursor, WAMessageKey } from '../Types'
 import { Label } from '../Types/Label'
 import { LabelAssociation, LabelAssociationType, MessageLabelAssociation } from '../Types/LabelAssociation'
-import { toNumber, updateMessageWithReaction, updateMessageWithReceipt } from '../Utils'
+import { md5, toNumber, updateMessageWithReaction, updateMessageWithReceipt } from '../Utils'
 import { jidNormalizedUser } from '../WABinary'
 import makeOrderedDictionary from './make-ordered-dictionary'
 import { ObjectRepository } from './object-repository'
@@ -30,6 +30,7 @@ export type BaileysInMemoryStoreConfig = {
 	chatKey?: Comparable<Chat, string>
 	labelAssociationKey?: Comparable<LabelAssociation, string>
 	logger?: Logger
+	socket?: WASocket
 }
 
 const makeMessagesDictionary = () => makeOrderedDictionary(waMessageID)
@@ -73,7 +74,7 @@ const predefinedLabels = Object.freeze<Record<string, Label>>({
 })
 
 export default (
-	{ logger: _logger, chatKey, labelAssociationKey }: BaileysInMemoryStoreConfig
+	{ logger: _logger, chatKey, labelAssociationKey, socket }: BaileysInMemoryStoreConfig
 ) => {
 	// const logger = _logger || DEFAULT_CONNECTION_CONFIG.logger.child({ stream: 'in-mem-store' })
 	chatKey = chatKey || waChatKey(true)
@@ -167,13 +168,31 @@ export default (
 			contactsUpsert(contacts)
 		})
 
-		ev.on('contacts.update', updates => {
+		ev.on('contacts.update', async updates => {
 			for(const update of updates) {
+				let contact: Contact
 				if(contacts[update.id!]) {
-					Object.assign(contacts[update.id!], update)
+					contact = contacts[update.id!]
 				} else {
-					logger.debug({ update }, 'got update for non-existant contact')
+					const contactHashes = await Promise.all(Object.keys(contacts).map(async a => {
+						return (await md5(Buffer.from(a + 'WA_ADD_NOTIF', 'utf8'))).toString('base64').slice(0, 3)
+					}))
+					contact = contacts[contactHashes.find(a => a === update.id) || '']
 				}
+
+				if(update.imgUrl === 'changed' || update.imgUrl === 'removed') {
+					if(contact) {
+						if(update.imgUrl === 'changed') {
+							contact.imgUrl = socket ? await socket?.profilePictureUrl(contact.id) : undefined
+						} else {
+							delete contact.imgUrl
+						}
+					} else {
+						return logger.debug({ update }, 'got update for non-existant contact')
+					}
+				}
+
+				Object.assign(contacts[update.id!], contact)
 			}
 		})
 		ev.on('chats.upsert', newChats => {