Store Razorpay test keys alongside live keys

src/main/kotlin/com/android/trisolarisserver/controller/RazorpayQrPayments.kt

@@ -310,9 +310,10 @@ class RazorpayQrPayments(
     }
 
     private fun postJson(url: String, settings: com.android.trisolarisserver.models.payment.RazorpaySettings, json: String): ResponseEntity<String> {
+        val (keyId, keySecret) = requireKeys(settings)
         val headers = HttpHeaders()
         headers.contentType = MediaType.APPLICATION_JSON
-        headers.set(HttpHeaders.AUTHORIZATION, basicAuth(settings.keyId, settings.keySecret))
+        headers.set(HttpHeaders.AUTHORIZATION, basicAuth(keyId, keySecret))
         return restTemplate.exchange(url, HttpMethod.POST, HttpEntity(json, headers), String::class.java)
     }
 
@@ -329,4 +330,12 @@ class RazorpayQrPayments(
         val encoded = Base64.getEncoder().encodeToString(raw.toByteArray())
         return "Basic $encoded"
     }
+
+    private fun requireKeys(settings: com.android.trisolarisserver.models.payment.RazorpaySettings): Pair<String, String> {
+        val keyId = settings.resolveKeyId()
+            ?: throw ResponseStatusException(HttpStatus.BAD_REQUEST, "Razorpay test keys not configured")
+        val keySecret = settings.resolveKeySecret()
+            ?: throw ResponseStatusException(HttpStatus.BAD_REQUEST, "Razorpay test keys not configured")
+        return keyId to keySecret
+    }
 }