FIX: Mapeamento de chats e mensagens para o formato esperado pelo frontend

src/modules/whatsapp/repositories/mensagens.repository.ts

@@ -31,22 +31,28 @@ export class MensagensRepository {
   }
 
   async findByChatId(chatId: string) {
-    return this.database.query(
+    const result = await this.database.query(
       `SELECT * FROM mensagens WHERE chat_id = $1 ORDER BY timestamp ASC`,
       [chatId],
     );
+    return result.rows;
   }
 
   async findChats() {
-    return this.database.query(`
-      SELECT DISTINCT ON (chat_id)
-        chat_id,
-        body        AS preview,
-        from_me     AS last_message_from_me,
-        sender_name,
-        timestamp
-      FROM mensagens
-      ORDER BY chat_id, timestamp DESC
+    const result = await this.database.query(`
+      SELECT *
+      FROM (
+        SELECT DISTINCT ON (chat_id)
+          chat_id,
+          body        AS preview,
+          from_me     AS last_message_from_me,
+          sender_name,
+          timestamp
+        FROM mensagens
+        ORDER BY chat_id, timestamp DESC
+      ) latest
+      ORDER BY timestamp DESC
     `);
+    return result.rows;
   }
 }

src/modules/whatsapp/whatsapp.service.ts

@@ -56,11 +56,36 @@ export class WhatsappService {
   }
 
   async getChats() {
-    return this.mensagensRepository.findChats();
+    const rows = await this.mensagensRepository.findChats();
+    return Promise.all(rows.map(async (row: any) => {
+      const chatId = row.chat_id;
+      const assignment = await this.assignmentService.getAssignment(chatId);
+      const contactProfile = await this.getCustomerContact(chatId);
+      return {
+        id: { _serialized: chatId, user: chatId, server: 'c.us' },
+        name: contactProfile?.name || row.sender_name || chatId,
+        preview: row.preview || '',
+        timestamp: Number(row.timestamp),
+        unreadCount: 0,
+        lastMessageFromMe: Boolean(row.last_message_from_me),
+        contactProfile: contactProfile ?? { chat_id: chatId, phone: chatId, name: null, company: null, note: null },
+        assignment: assignment || null,
+      };
+    }));
   }
 
   async getChatMessages(chatId: string) {
-    return this.mensagensRepository.findByChatId(chatId);
+    const rows = await this.mensagensRepository.findByChatId(chatId);
+    return rows.map((row: any) => ({
+      id: { _serialized: row.wamid, user: row.wamid, server: 'c.us' },
+      body: row.body ?? '',
+      fromMe: Boolean(row.from_me),
+      timestamp: Number(row.timestamp),
+      hasMedia: row.type !== 'text',
+      media: null,
+      chatId: row.chat_id,
+      status: row.status,
+    }));
   }
 
   async getMessageMedia(_chatId: string, _messageId: string) {