Reviewer's Guide

Refactors Baileys WhatsApp message upsert handling to preserve Meta Ads/CTWA webhook messages (even without resolved phone numbers), enrich webhook payloads with campaign metadata and LID info, and isolate per-message failures within batches while adding better error handling and media/webhook processing logic.

Sequence diagram for Meta Ads message upsert and webhook preservation

sequenceDiagram
  participant BaileysStartupService
  participant PhoneResolver as resolvePhoneNumber
  participant Webhook as sendDataWebhook
  participant DB as prismaRepository
  participant S3 as s3Service
  participant Chatbot as chatbotController

  BaileysStartupService->>BaileysStartupService: prepareMessage(received)
  BaileysStartupService->>BaileysStartupService: getCampaignMetadata(messageRaw.contextInfo)
  BaileysStartupService->>PhoneResolver: resolvePhoneNumber(messageRaw.key)
  PhoneResolver-->>BaileysStartupService: phoneNumber or null
  BaileysStartupService->>BaileysStartupService: createWebhookMessage()
  BaileysStartupService->>Webhook: sendDataWebhook(Events.MESSAGES_UPSERT, webhookMessage)

  alt isMetaAdsMessage
    Note over BaileysStartupService,Webhook: Webhook sent early, before DB/media/chatbot
  else nonMetaAdsMessage
    BaileysStartupService->>Webhook: sendDataWebhook(Events.MESSAGES_UPSERT, webhookMessage)
  end

  BaileysStartupService->>DB: message.create(messageData)
  BaileysStartupService->>S3: uploadFile(fullName, buffer, size)
  BaileysStartupService->>DB: media.create({ messageId, instanceId, type, fileName })
  BaileysStartupService->>Chatbot: emit({ instance, remoteJid, msg, pushName })
  BaileysStartupService->>Webhook: sendDataWebhook(Events.CONTACTS_UPDATE | CONTACTS_UPSERT, contactRaw)

Sequence diagram for per-message error isolation and placeholder resend

sequenceDiagram
  participant BaileysStartupService
  participant Client as client
  participant Logger as logger

  loop for each received in messages
    BaileysStartupService->>BaileysStartupService: [per-message try]
    alt messageStubParameters indicate decryption error
      BaileysStartupService->>Client: requestPlaceholderResend(received.key)
      Client-->>BaileysStartupService: resendId
      BaileysStartupService->>Logger: warn("requested resend", keyId, resendId)
      BaileysStartupService-->>BaileysStartupService: continue to next message
    else normal processing
      BaileysStartupService->>BaileysStartupService: full message handling (DB, media, webhook, chatbot)
    end
    BaileysStartupService->>Logger: error on per-message failure
  end

  BaileysStartupService->>Logger: error on outer handler failure

File-Level Changes

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