Log geocode response in extracted data

src/main/kotlin/com/android/trisolarisserver/component/GoogleGeocodingClient.kt

@@ -18,8 +18,10 @@ class GoogleGeocodingClient(
 ) {
     private val logger = LoggerFactory.getLogger(GoogleGeocodingClient::class.java)
 
-    fun resolveCityState(pinCode: String): String? {
-        if (apiKey.isBlank()) return null
+    fun resolveCityState(pinCode: String): GeocodeResult {
+        if (apiKey.isBlank()) {
+            return GeocodeResult(null, null, "NO_API_KEY")
+        }
         return try {
             val url = UriComponentsBuilder.fromUriString(baseUrl)
                 .queryParam("components", "postal_code:$pinCode|country:IN")
@@ -27,11 +29,12 @@ class GoogleGeocodingClient(
                 .queryParam("key", apiKey)
                 .toUriString()
             val response = restTemplate.getForEntity(url, String::class.java)
-            val body = response.body ?: return null
-            parseCityState(body)
+            val body = response.body ?: return GeocodeResult(null, null, "EMPTY_BODY")
+            val parsed = parseCityState(body)
+            GeocodeResult(parsed, body, "OK")
         } catch (ex: Exception) {
             logger.warn("Geocoding failed: {}", ex.message)
-            null
+            GeocodeResult(null, null, "ERROR")
         }
     }
 
@@ -67,3 +70,9 @@ class GoogleGeocodingClient(
         return listOfNotNull(preferredCity, state?.trim()?.ifBlank { null }).joinToString(", ")
     }
 }
+
+data class GeocodeResult(
+    val resolvedCityState: String?,
+    val rawResponse: String?,
+    val status: String?
+)