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fix(instance): prevent GetQr from disconnecting active logged-in session #149

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fix(instance): prevent GetQr from disconnecting active logged-in session #149

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18 changes: 13 additions & 5 deletions pkg/instance/service/instance_service.go
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Original file line number Diff line number Diff line change
Expand Up @@ -407,12 +407,20 @@ func (i instances) GetQr(instance *instance_model.Instance) (*QrcodeStruct, erro
logger := i.loggerWrapper.GetLogger(instance.Id)
client := i.clientPointer[instance.Id]

// Se não há cliente ou o cliente está logado, precisamos iniciar um novo cliente
if client == nil || client.IsLoggedIn() {
if client != nil && client.IsLoggedIn() {
logger.LogInfo("[%s] Client is logged in, starting new instance for QR code", instance.Id)
} else {
// Se o cliente já está logado, NÃO reiniciar — apenas informar. Chamar StartInstance
// numa sessão logada derruba o whatsmeow (Disconnected → novo QR), o que pode ser
// disparado por polling do frontend logo após PairSuccess, quebrando a conexão.
if client != nil && client.IsLoggedIn() {
logger.LogInfo("[%s] Client is already logged in — returning 'session already logged in' (StartInstance skipped to avoid disconnect)", instance.Id)
return nil, fmt.Errorf("session already logged in")
}

// Se não há cliente OU cliente sem sessão logada, iniciar/reiniciar para gerar QR
if client == nil || (!client.IsConnected() && !client.IsLoggedIn()) {
if client == nil {
logger.LogInfo("[%s] No client found, starting new instance for QR code", instance.Id)
} else {
logger.LogInfo("[%s] Client exists but not connected/logged, restarting for QR code", instance.Id)
}

// Iniciar nova instância para gerar QR code
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