Use isTest flag for PayU base URL

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

@@ -166,7 +166,7 @@ class PayuQrPayments(
             contentType = MediaType.APPLICATION_FORM_URLENCODED
         }
         val entity = org.springframework.http.HttpEntity(form, headers)
-        val response = restTemplate.postForEntity(settings.baseUrl, entity, String::class.java)
+        val response = restTemplate.postForEntity(resolveBaseUrl(settings), entity, String::class.java)
         val responseBody = response.body ?: ""
 
         record.responsePayload = responseBody
@@ -196,6 +196,14 @@ class PayuQrPayments(
         return "https://api.hoteltrisolaris.in/properties/$propertyId/payu/return/$path"
     }
 
+    private fun resolveBaseUrl(settings: com.android.trisolarisserver.models.payment.PayuSettings): String {
+        return if (settings.isTest) {
+            "https://test.payu.in/_payment"
+        } else {
+            "https://secure.payu.in/_payment"
+        }
+    }
+
     private fun sha512(input: String): String {
         val bytes = MessageDigest.getInstance("SHA-512").digest(input.toByteArray())
         return bytes.joinToString("") { "%02x".format(it) }

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

@@ -52,7 +52,12 @@ class PayuSettingsController(
         val key = request.merchantKey.trim().ifBlank {
             throw ResponseStatusException(HttpStatus.BAD_REQUEST, "merchantKey required")
         }
-        val baseUrl = request.baseUrl?.trim()?.ifBlank { null } ?: "https://secure.payu.in/_payment"
+        val isTest = request.isTest ?: false
+        val baseUrl = if (isTest) {
+            "https://test.payu.in/_payment"
+        } else {
+            "https://secure.payu.in/_payment"
+        }
         val existing = payuSettingsRepo.findByPropertyId(propertyId)
         val updated = if (existing == null) {
             PayuSettings(
@@ -61,6 +66,7 @@ class PayuSettingsController(
                 salt32 = request.salt32?.trim()?.ifBlank { null },
                 salt256 = request.salt256?.trim()?.ifBlank { null },
                 baseUrl = baseUrl,
+                isTest = isTest,
                 useSalt256 = request.useSalt256 ?: true,
                 updatedAt = OffsetDateTime.now()
             )
@@ -69,6 +75,7 @@ class PayuSettingsController(
             if (request.salt32 != null) existing.salt32 = request.salt32.trim().ifBlank { null }
             if (request.salt256 != null) existing.salt256 = request.salt256.trim().ifBlank { null }
             existing.baseUrl = baseUrl
+            existing.isTest = isTest
             if (request.useSalt256 != null) existing.useSalt256 = request.useSalt256
             existing.updatedAt = OffsetDateTime.now()
             existing
@@ -82,7 +89,7 @@ private fun PayuSettings.toResponse(): PayuSettingsResponse {
     return PayuSettingsResponse(
         propertyId = propertyId,
         merchantKey = merchantKey,
-        baseUrl = baseUrl,
+        isTest = isTest,
         useSalt256 = useSalt256,
         hasSalt32 = !salt32.isNullOrBlank(),
         hasSalt256 = !salt256.isNullOrBlank()

src/main/kotlin/com/android/trisolarisserver/controller/dto/PayuDtos.kt

@@ -6,14 +6,14 @@ data class PayuSettingsUpsertRequest(
     val merchantKey: String,
     val salt32: String? = null,
     val salt256: String? = null,
-    val baseUrl: String? = null,
+    val isTest: Boolean? = null,
     val useSalt256: Boolean? = null
 )
 
 data class PayuSettingsResponse(
     val propertyId: UUID,
     val merchantKey: String,
-    val baseUrl: String,
+    val isTest: Boolean,
     val useSalt256: Boolean,
     val hasSalt32: Boolean,
     val hasSalt256: Boolean