From 79b55be7ef1abd61f138e7615778f7b9f059ed52 Mon Sep 17 00:00:00 2001
From: Rafael Lopes <rafael.lopes@sothis.com.br>
Date: Thu, 18 Jun 2026 13:53:40 -0300
Subject: [PATCH] FEAT: Parser de eventos do webhook Meta (messages e statuses)

---
 src/modules/whatsapp/whatsapp.controller.ts |  4 +-
 src/modules/whatsapp/whatsapp.service.ts    | 74 +++++++++++++++++++++
 2 files changed, 76 insertions(+), 2 deletions(-)

diff --git a/src/modules/whatsapp/whatsapp.controller.ts b/src/modules/whatsapp/whatsapp.controller.ts
index 4d6ed89..8478d1e 100644
--- a/src/modules/whatsapp/whatsapp.controller.ts
+++ b/src/modules/whatsapp/whatsapp.controller.ts
@@ -1,4 +1,4 @@
-import { Controller, Get, Post, Body, Delete, Param, ForbiddenException, Query, RawBody } from '@nestjs/common';
+import { Controller, Get, Post, Body, Delete, Param, ForbiddenException, Query } from '@nestjs/common';
 import { ApiBody, ApiOperation, ApiParam, ApiResponse, ApiTags } from '@nestjs/swagger';
 import { WhatsappService } from './whatsapp.service';
 import { AttendanceAssignmentService } from '../attendance/attendance-assignment.service';
@@ -291,7 +291,7 @@ export class WhatsappController {
 @ApiOperation({ summary: 'Recebe eventos do webhook Meta' })
 @Post('webhook')
 async receiveWebhook(@Body() body: any) {
-  console.log('Webhook Meta:', JSON.stringify(body, null, 2));
+  await this.whatsappService.handleMetaWebhookEvent(body);
   return { status: 'ok' };
 }
 
diff --git a/src/modules/whatsapp/whatsapp.service.ts b/src/modules/whatsapp/whatsapp.service.ts
index f5277ad..fed9f75 100644
--- a/src/modules/whatsapp/whatsapp.service.ts
+++ b/src/modules/whatsapp/whatsapp.service.ts
@@ -578,4 +578,78 @@ export class WhatsappService implements OnModuleInit {
     return `*Atendente: ${cleanSenderName}*\n\n${cleanMessage}`;
   }
 
+  async handleMetaWebhookEvent(body: any): Promise<void> {
+    if (body?.object !== 'whatsapp_business_account') return;
+
+    for (const entry of body?.entry ?? []) {
+      for (const change of entry?.changes ?? []) {
+        if (change.field !== 'messages') continue;
+
+        const value = change.value;
+
+        if (value?.messages?.length) {
+          for (const message of value.messages) {
+            await this.handleMetaIncomingMessage(message, value.contacts ?? []);
+          }
+        }
+
+        if (value?.statuses?.length) {
+          for (const status of value.statuses) {
+            this.logger.log(`[Meta] Status de mensagem: ${status.id} → ${status.status} (destinatário: ${status.recipient_id})`);
+          }
+        }
+      }
+    }
+  }
+
+  private async handleMetaIncomingMessage(message: any, contacts: any[]): Promise<void> {
+    const from: string = message.from;
+    const messageId: string = message.id;
+    const timestamp: number = parseInt(message.timestamp, 10);
+    const messageBody: string = message.text?.body?.trim() ?? '';
+
+    const contact = contacts.find((c) => c.wa_id === from);
+    const contactName: string = contact?.profile?.name || from;
+
+    if (this.processedIncomingMessages.has(messageId)) return;
+    this.processedIncomingMessages.add(messageId);
+    if (this.processedIncomingMessages.size > 1000) {
+      const [oldest] = this.processedIncomingMessages;
+      this.processedIncomingMessages.delete(oldest);
+    }
+
+    this.logger.log(`[Meta] Mensagem recebida de ${from} (${contactName}): ${messageBody || '[mídia]'}`);
+
+    this.gateway.emitNewMessage({
+      from,
+      body: messageBody,
+      timestamp,
+      isGroupMsg: false,
+      id: messageId,
+      fromMe: false,
+      notifyName: contactName,
+      hasMedia: message.type !== 'text',
+      media: null,
+    });
+
+    if (messageBody) {
+      await this.assignmentService.markCustomerReplied(from);
+    }
+
+    if (!messageBody) {
+      this.logger.log(`[Meta] Triagem ignorada para ${from}: mensagem sem texto.`);
+      return;
+    }
+
+    const fakeMsg = {
+      reply: async (text: string) => {
+        // TODO Fase 2: enviar via Meta Graph API
+        this.logger.warn(`[Meta] Bot reply pendente de implementação. Mensagem para ${from}: "${text}"`);
+      },
+      _data: { notifyName: contactName },
+    };
+
+    await this.enqueueIncomingRoute(from, fakeMsg, messageBody, messageId);
+  }
+
 }