terminado pagos

src/main/java/com/imprimelibros/erp/payments/PaymentController.java

@@ -11,6 +11,7 @@ import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.ResponseBody;
@@ -276,7 +277,8 @@ public class PaymentController {
                                     + messageSource.getMessage("pagos.table.finalizar", null, locale) + "</span> ";
 
                         }
-                        if ((pago.getAmountCents() - p.getAmountRefundedCents() > 0) && pago.getStatus() == PaymentTransactionStatus.succeeded) {
+                        if ((pago.getAmountCents() - p.getAmountRefundedCents() > 0)
+                                && pago.getStatus() == PaymentTransactionStatus.succeeded) {
                             actions += "<span class=\'badge bg-secondary btn-transfer-refund \' data-dsOrderId=\'"
                                     + p.getGatewayOrderId()
                                     + "\' data-transactionId=\'" + pago.getPayment().getId()
@@ -309,4 +311,21 @@ public class PaymentController {
         }
     }
 
+    @PostMapping(value = "/transfer/refund/{id}", produces = "application/json")
+    public ResponseEntity<Map<String, Object>> refundTransfer(@PathVariable Long id,
+            @RequestParam("amountCents") Long amountCents) {
+
+        Map<String, Object> response;
+        try {
+            paymentService.refundBankTransfer(id, amountCents);
+            response = Map.of("success", true);
+            return ResponseEntity.ok(response);
+
+        } catch (Exception e) {
+            e.printStackTrace();
+            response = Map.of("success", false);
+            response.put("error", e.getMessage());
+            return ResponseEntity.badRequest().body(response);
+        }
+    }
 }

src/main/java/com/imprimelibros/erp/payments/PaymentService.java

@@ -312,7 +312,7 @@ public class PaymentService {
         tx.setCurrency(currency);
         // tx.setProcessedAt(null); // la dejas nula hasta que se confirme
         txRepo.save(tx);
-        
+
         return p;
     }
 
@@ -358,6 +358,84 @@ public class PaymentService {
         }
     }
 
+    /**
+     * Devuelve (total o parcialmente) un pago hecho por transferencia bancaria.
+     * - Solo permite gateway = "bank_transfer".
+     * - Crea un Refund + PaymentTransaction de tipo REFUND.
+     * - Actualiza amountRefundedCents y el estado del Payment.
+     */
+    @Transactional
+    public Refund refundBankTransfer(Long paymentId, long amountCents) {
+        Payment p = payRepo.findById(paymentId)
+                .orElseThrow(() -> new IllegalArgumentException("Payment no encontrado: " + paymentId));
+
+        if (!"bank_transfer".equals(p.getGateway())) {
+            throw new IllegalStateException("El Payment " + paymentId + " no es de tipo bank_transfer");
+        }
+
+        if (amountCents <= 0) {
+            throw new IllegalArgumentException("El importe de devolución debe ser > 0");
+        }
+
+        // Solo tiene sentido devolver si está capturado o ya parcialmente devuelto
+        if (p.getStatus() != PaymentStatus.captured
+                && p.getStatus() != PaymentStatus.partially_refunded) {
+            throw new IllegalStateException(
+                    "El Payment " + paymentId + " no está capturado; estado actual: " + p.getStatus());
+        }
+
+        long maxRefundable = p.getAmountCapturedCents() - p.getAmountRefundedCents();
+        if (amountCents > maxRefundable) {
+            throw new IllegalStateException(
+                    "Importe de devolución supera lo todavía reembolsable. " +
+                            "maxRefundable=" + maxRefundable + " requested=" + amountCents);
+        }
+
+        LocalDateTime now = LocalDateTime.now();
+
+        // 1) Crear Refund (para transferencias lo marcamos como SUCCEEDED directamente)
+        Refund refund = new Refund();
+        refund.setPayment(p);
+        refund.setAmountCents(amountCents);
+        // reason usa el valor por defecto (customer_request); si quieres otro, cámbialo
+        // aquí
+        refund.setStatus(RefundStatus.succeeded);
+        refund.setRequestedAt(now);
+        refund.setProcessedAt(now);
+        // requestedByUserId, notes, metadata -> opcionales, déjalos en null si no los
+        // usas
+        refund = refundRepo.save(refund);
+
+        // 2) Crear transacción de tipo REFUND
+        PaymentTransaction tx = new PaymentTransaction();
+        tx.setPayment(p);
+        tx.setType(PaymentTransactionType.REFUND);
+        tx.setStatus(PaymentTransactionStatus.succeeded);
+        tx.setAmountCents(amountCents);
+        tx.setCurrency(p.getCurrency());
+        tx.setProcessedAt(now);
+        // gatewayTransactionId lo dejamos null → el índice UNIQUE permite múltiples
+        // NULL
+        tx = txRepo.save(tx);
+
+        // Vincular el Refund con la transacción
+        refund.setTransaction(tx);
+        refundRepo.save(refund);
+
+        // 3) Actualizar Payment: total devuelto y estado
+        p.setAmountRefundedCents(p.getAmountRefundedCents() + amountCents);
+
+        if (p.getAmountRefundedCents().equals(p.getAmountCapturedCents())) {
+            p.setStatus(PaymentStatus.refunded);
+        } else {
+            p.setStatus(PaymentStatus.partially_refunded);
+        }
+
+        payRepo.save(p);
+
+        return refund;
+    }
+
     private boolean isRedsysAuthorized(RedsysService.RedsysNotification notif) {
         if (notif.response == null) {
             return false;