Security Check requested

backend/src/main/java/com/rit/canteen/sales/controller/TerminalController.java

@@ -78,6 +78,16 @@ public class TerminalController {
         return ResponseEntity.noContent().build();
     }
 
+    @PutMapping("/{id}")
+    public ResponseEntity<?> updateTerminal(@PathVariable Long id, @jakarta.validation.Valid @RequestBody Terminal terminalDetails) {
+        Terminal updated = terminalService.updateTerminal(id, terminalDetails);
+        if (updated != null) {
+            return ResponseEntity.ok(updated);
+        } else {
+            return ResponseEntity.notFound().build();
+        }
+    }
+
     // ──────────────────────────────────────────────────────────────
     //  Order Lookup (ESP32 uses X-API-KEY)
     // ──────────────────────────────────────────────────────────────

backend/src/main/java/com/rit/canteen/sales/service/TerminalService.java

@@ -43,4 +43,16 @@ public class TerminalService {
             terminalRepository.deleteById(id);
         }
     }
+
+    public Terminal updateTerminal(Long id, Terminal details) {
+        if (id == null) return null;
+        return terminalRepository.findById(id).map(existing -> {
+            existing.setName(details.getName());
+            existing.setLocation(details.getLocation());
+            if (details.getPin() != null && !details.getPin().trim().isEmpty()) {
+                existing.setPin(details.getPin().trim());
+            }
+            return terminalRepository.save(existing);
+        }).orElse(null);
+    }
 }