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

@@ -16,12 +16,13 @@ export class MensagensRepository {
     timestamp: number;
     mediaPath?: string;
     mediaMimeType?: string;
+    mediaFilename?: string;
   }) {
     await this.database.query(
-      `INSERT INTO mensagens (wamid, chat_id, from_me, type, body, sender_name, status, timestamp, media_path, media_mime_type)
-       VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10)
+      `INSERT INTO mensagens (wamid, chat_id, from_me, type, body, sender_name, status, timestamp, media_path, media_mime_type, media_filename)
+       VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11)
        ON CONFLICT (wamid) DO NOTHING`,
-      [msg.wamid, msg.chatId, msg.fromMe, msg.type, msg.body ?? null, msg.senderName ?? null, msg.status ?? null, msg.timestamp, msg.mediaPath ?? null, msg.mediaMimeType ?? null],
+      [msg.wamid, msg.chatId, msg.fromMe, msg.type, msg.body ?? null, msg.senderName ?? null, msg.status ?? null, msg.timestamp, msg.mediaPath ?? null, msg.mediaMimeType ?? null, msg.mediaFilename ?? null],
     );
   }
 

src/modules/whatsapp/whatsapp.controller.ts

@@ -114,7 +114,7 @@ export class WhatsappController {
       throw new BadRequestException(`Arquivo muito grande. Limite para ${mediaType}: ${limitMB} MB.`);
     }
 
-    return this.whatsappService.sendMediaMessage(to, file.buffer, file.mimetype, senderName, caption);
+    return this.whatsappService.sendMediaMessage(to, file.buffer, file.mimetype, senderName, caption, file.originalname);
   }
 
   @ApiOperation({ summary: 'Inicia atendimento ativo' })

src/modules/whatsapp/whatsapp.service.ts

@@ -106,6 +106,7 @@ export class WhatsappService {
     mimeType: string,
     senderName?: string,
     caption?: string,
+    filename?: string,
   ): Promise<any> {
     const { access_token: token, phone_number_id: phoneNumberId, api_version: apiVersion } =
       await this.configService.getConfig();
@@ -136,6 +137,7 @@ export class WhatsappService {
 
     const mediaPayload: any = { id: mediaId };
     if (caption && mediaType !== 'audio') mediaPayload.caption = senderName ? `*Atendente: ${senderName}*\n\n${caption}` : caption;
+    if (mediaType === 'document' && filename) mediaPayload.filename = filename;
 
     const messageResponse = await fetch(
       `https://graph.facebook.com/${apiVersion}/${phoneNumberId}/messages`,
@@ -162,7 +164,9 @@ export class WhatsappService {
     this.logger.log(`[Meta] Mídia (${mediaType}) enviada para ${to}: ${wamid}`);
 
     const senderLabel = senderName ?? 'Sistema';
-    const bodyText = caption ? (senderName ? `*Atendente: ${senderLabel}*\n\n${caption}` : caption) : `[${mediaType}]`;
+    const bodyText = caption
+      ? (senderName ? `*Atendente: ${senderLabel}*\n\n${caption}` : caption)
+      : (filename || `[${mediaType}]`);
     const timestamp = Math.floor(Date.now() / 1000);
 
     if (wamid) {
@@ -177,6 +181,7 @@ export class WhatsappService {
         timestamp,
         mediaPath,
         mediaMimeType: mimeType,
+        mediaFilename: filename,
       });
     }
 
@@ -191,6 +196,7 @@ export class WhatsappService {
       hasMedia: true,
       mediaUrl: this.mediaStorageService.getUrl(mediaPath),
       mediaMimeType: mimeType,
+      mediaFilename: filename ?? null,
     });
 
     return messageResult;
@@ -437,6 +443,8 @@ export class WhatsappService {
     let mediaPath: string | undefined;
     let mediaMimeType: string | undefined;
 
+    let mediaFilename: string | undefined;
+
     if ((MEDIA_TYPES as readonly string[]).includes(messageType)) {
       const mediaObj = message[messageType];
       if (mediaObj?.id) {
@@ -444,6 +452,7 @@ export class WhatsappService {
           const { buffer, mimeType } = await this.downloadMetaMedia(mediaObj.id, mediaObj.mime_type);
           mediaPath = await this.mediaStorageService.upload(buffer, mimeType);
           mediaMimeType = mimeType;
+          mediaFilename = mediaObj.filename || undefined;
           this.logger.log(`[Meta] Mídia salva: ${mediaPath}`);
         } catch (err) {
           this.logger.error(`[Meta] Falha ao baixar mídia ${mediaObj.id} de ${from}:`, err);
@@ -451,16 +460,19 @@ export class WhatsappService {
       }
     }
 
+    const bodyToSave = messageBody || mediaFilename || undefined;
+
     await this.mensagensRepository.save({
       wamid: messageId,
       chatId: from,
       fromMe: false,
       type: messageType,
-      body: messageBody || undefined,
+      body: bodyToSave,
       senderName: contactName,
       timestamp,
       mediaPath,
       mediaMimeType,
+      mediaFilename,
     });
 
     this.gateway.emitNewMessage({
@@ -474,6 +486,7 @@ export class WhatsappService {
       hasMedia: !!mediaPath,
       mediaUrl: mediaPath ? this.mediaStorageService.getUrl(mediaPath) : null,
       mediaMimeType: mediaMimeType ?? null,
+      mediaFilename: mediaFilename ?? null,
     });
 
     if (messageBody || mediaPath) {