intentando meter los ficheros redsys

src/main/java/com/imprimelibros/erp/redsys/RedsysController.java

@@ -0,0 +1,53 @@
+package com.imprimelibros.erp.redsys;
+
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+@Controller
+@RequestMapping("/pagos/redsys")
+public class RedsysController {
+
+    private final RedsysService service;
+    public RedsysController(RedsysService service) { this.service = service; }
+
+    @PostMapping("/crear")
+    public String crearPago(@RequestParam String order,
+                            @RequestParam long amountCents,
+                            Model model) {
+        var payReq = new RedsysService.PaymentRequest(order, amountCents, "Compra en ImprimeLibros");
+        var form = service.buildRedirectForm(payReq);
+        model.addAttribute("action", form.action());
+        model.addAttribute("signatureVersion", form.signatureVersion());
+        model.addAttribute("merchantParameters", form.merchantParameters());
+        model.addAttribute("signature", form.signature());
+        return "payments/redsys-redirect"; // Thymeleaf
+    }
+
+    @PostMapping("/notify")
+    @ResponseBody
+    public ResponseEntity<String> notifyRedsys(@RequestParam("Ds_Signature") String dsSig,
+                                               @RequestParam("Ds_SignatureVersion") String dsSigVer,
+                                               @RequestParam("Ds_MerchantParameters") String dsParams) throws Exception {
+        var notif = service.validateAndParse(dsSig, dsSigVer, dsParams);
+
+        // 1) Idempotencia: marca el pedido si aún no procesado.
+        // 2) Verifica importe/moneda/pedido contra tu base de datos.
+        // 3) Autoriza en tu sistema si notif.authorized() == true.
+
+        return ResponseEntity.ok("OK");
+    }
+
+    @GetMapping("/ok")
+    public String ok()   { return "payments/success"; }
+
+    @GetMapping("/ko")
+    public String ko()   { return "payments/failure"; }
+
+}
+