From 52fa931140b2e998bd76a72d3cfdf00fabf2ce1b Mon Sep 17 00:00:00 2001
From: Caio Bleggi <caio_bleggi@hotmail.com>
Date: Tue, 9 Dec 2025 12:03:47 -0300
Subject: [PATCH] feat(channel): add support for @newsletter in sendMessage and
 findChannels

---
 src/api/controllers/chat.controller.ts        |  4 ++
 .../whatsapp/whatsapp.baileys.service.ts      | 68 ++++++++++++++++++-
 src/api/routes/chat.router.ts                 | 10 +++
 src/utils/createJid.ts                        |  7 +-
 4 files changed, 86 insertions(+), 3 deletions(-)

diff --git a/src/api/controllers/chat.controller.ts b/src/api/controllers/chat.controller.ts
index 22e90b9f..6a21fa56 100644
--- a/src/api/controllers/chat.controller.ts
+++ b/src/api/controllers/chat.controller.ts
@@ -113,4 +113,8 @@ export class ChatController {
   public async blockUser({ instanceName }: InstanceDto, data: BlockUserDto) {
     return await this.waMonitor.waInstances[instanceName].blockUser(data);
   }
+
+  public async fetchChannels({ instanceName }: InstanceDto, query: Query<Contact>) {
+    return await this.waMonitor.waInstances[instanceName].fetchChannels(query);
+  }
 }
diff --git a/src/api/integrations/channel/whatsapp/whatsapp.baileys.service.ts b/src/api/integrations/channel/whatsapp/whatsapp.baileys.service.ts
index 60e857fc..db743fac 100644
--- a/src/api/integrations/channel/whatsapp/whatsapp.baileys.service.ts
+++ b/src/api/integrations/channel/whatsapp/whatsapp.baileys.service.ts
@@ -3511,9 +3511,24 @@ export class BaileysStartupService extends ChannelStartupService {
       users: { number: string; jid: string; name?: string }[];
     } = { groups: [], broadcast: [], users: [] };
 
+    const onWhatsapp: OnWhatsAppDto[] = [];
+
     data.numbers.forEach((number) => {
       const jid = createJid(number);
 
+      if (isJidNewsletter(jid)) {
+        onWhatsapp.push(
+          new OnWhatsAppDto(
+            jid,
+            true, // Newsletters are always valid
+            number,
+            undefined, // Can be fetched later if needed
+            'newsletter', // Indicate it's a newsletter type
+          ),
+        );
+        return;
+      }
+
       if (isJidGroup(jid)) {
         jids.groups.push({ number, jid });
       } else if (jid === 'status@broadcast') {
@@ -3523,8 +3538,6 @@ export class BaileysStartupService extends ChannelStartupService {
       }
     });
 
-    const onWhatsapp: OnWhatsAppDto[] = [];
-
     // BROADCAST
     onWhatsapp.push(...jids.broadcast.map(({ jid, number }) => new OnWhatsAppDto(jid, false, number)));
 
@@ -4700,6 +4713,10 @@ export class BaileysStartupService extends ChannelStartupService {
       }
     }
 
+    if (isJidNewsletter(message.key.remoteJid) && message.key.fromMe) {
+      messageRaw.status = status[3]; // DELIVERED MESSAGE TO NEWSLETTER CHANNEL
+    }
+
     return messageRaw;
   }
 
@@ -5119,4 +5136,51 @@ export class BaileysStartupService extends ChannelStartupService {
       },
     };
   }
+  public async fetchChannels(query: Query<Contact>) {
+    const page = Number((query as any)?.page ?? 1);
+    const limit = Number((query as any)?.limit ?? (query as any)?.rows ?? 50);
+    const skip = (page - 1) * limit;
+
+    const messages = await this.prismaRepository.message.findMany({
+      where: {
+        instanceId: this.instanceId,
+        AND: [{ key: { path: ['remoteJid'], not: null } }],
+      },
+      orderBy: { messageTimestamp: 'desc' },
+      select: {
+        key: true,
+        messageTimestamp: true,
+      },
+    });
+
+    const channelMap = new Map<string, { remoteJid: string; pushName: undefined; lastMessageTimestamp: number }>();
+
+    for (const msg of messages) {
+      const key = msg.key as any;
+      const remoteJid = key?.remoteJid as string | undefined;
+      if (!remoteJid || !isJidNewsletter(remoteJid)) continue;
+
+      if (!channelMap.has(remoteJid)) {
+        channelMap.set(remoteJid, {
+          remoteJid,
+          pushName: undefined, // Push name is never stored for channels, so we set it as undefined
+          lastMessageTimestamp: msg.messageTimestamp,
+        });
+      }
+    }
+
+    const allChannels = Array.from(channelMap.values());
+
+    const total = allChannels.length;
+    const pages = Math.ceil(total / limit);
+    const records = allChannels.slice(skip, skip + limit);
+
+    return {
+      total,
+      pages,
+      currentPage: page,
+      limit,
+      records,
+    };
+  }
 }
diff --git a/src/api/routes/chat.router.ts b/src/api/routes/chat.router.ts
index 158947ed..f372950f 100644
--- a/src/api/routes/chat.router.ts
+++ b/src/api/routes/chat.router.ts
@@ -281,6 +281,16 @@ export class ChatRouter extends RouterBroker {
         });
 
         return res.status(HttpStatus.CREATED).json(response);
+      })
+      .post(this.routerPath('findChannels'), ...guards, async (req, res) => {
+        const response = await this.dataValidate({
+          request: req,
+          schema: contactValidateSchema,
+          ClassRef: Query<Contact>,
+          execute: (instance, query) => chatController.fetchChannels(instance, query as any),
+        });
+
+        return res.status(HttpStatus.OK).json(response);
       });
   }
 
diff --git a/src/utils/createJid.ts b/src/utils/createJid.ts
index a680e821..23a3afe1 100644
--- a/src/utils/createJid.ts
+++ b/src/utils/createJid.ts
@@ -35,7 +35,12 @@ function formatBRNumber(jid: string) {
 export function createJid(number: string): string {
   number = number.replace(/:\d+/, '');
 
-  if (number.includes('@g.us') || number.includes('@s.whatsapp.net') || number.includes('@lid')) {
+  if (
+    number.includes('@g.us') ||
+    number.includes('@s.whatsapp.net') ||
+    number.includes('@lid') ||
+    number.includes('@newsletter')
+  ) {
     return number;
   }