feat: method to mark chat as unread

src/api/services/channels/whatsapp.baileys.service.ts

@@ -68,6 +68,7 @@ import {
   DeleteMessage,
   getBase64FromMediaMessageDto,
   LastMessage,
+  MarkChatUnreadDto,
   NumberBusiness,
   OnWhatsAppDto,
   PrivacySettingDto,
@@ -2714,6 +2715,45 @@ export class BaileysStartupService extends ChannelStartupService {
     }
   }
 
+  public async markChatUnread(data: MarkChatUnreadDto) {
+    this.logger.verbose('Marking chat as unread');
+
+    try {
+      let last_message = data.lastMessage;
+      let number = data.chat;
+
+      if (!last_message && number) {
+        last_message = await this.getLastMessage(number);
+      } else {
+        last_message = data.lastMessage;
+        last_message.messageTimestamp = last_message?.messageTimestamp ?? Date.now();
+        number = last_message?.key?.remoteJid;
+      }
+
+      if (!last_message || Object.keys(last_message).length === 0) {
+        throw new NotFoundException('Last message not found');
+      }
+
+      await this.client.chatModify(
+        {
+          markRead: false,
+          lastMessages: [last_message],
+        },
+        this.createJid(number),
+      );
+
+      return {
+        chatId: number,
+        markedChatUnread: true,
+      };
+    } catch (error) {
+      throw new InternalServerErrorException({
+        markedChatUnread: false,
+        message: ['An error occurred while marked unread the chat. Open a calling.', error.toString()],
+      });
+    }
+  }
+
   public async deleteMessage(del: DeleteMessage) {
     this.logger.verbose('Deleting message');
     try {

src/api/services/channels/whatsapp.business.service.ts

@@ -1258,6 +1258,9 @@ export class BusinessStartupService extends ChannelStartupService {
   public async archiveChat() {
     throw new BadRequestException('Method not available on WhatsApp Business API');
   }
+  public async markChatUnread() {
+    throw new BadRequestException('Method not available on WhatsApp Business API');
+  }
   public async fetchProfile() {
     throw new BadRequestException('Method not available on WhatsApp Business API');
   }