Resolve pin via data.gov.in with fallbacks

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

@@ -68,15 +68,6 @@ class GoogleGeocodingClient(
         val resultNode = results.firstOrNull { node ->
             node.path("types").any { it.asText(null) == "postal_code" }
         } ?: results.first()
-        val postcodeLocalities = resultNode.path("postcode_localities")
-        if (postcodeLocalities.isArray) {
-            val candidates = postcodeLocalities.mapNotNull { it.asText(null) }
-            val agra = candidates.firstOrNull { it.equals("Agra", ignoreCase = true) }
-            if (agra != null) {
-                val stateOnly = extractState(resultNode)
-                return listOfNotNull(agra, stateOnly).joinToString(", ")
-            }
-        }
         val components = resultNode.path("address_components")
         if (!components.isArray) return null
 
@@ -101,18 +92,6 @@ class GoogleGeocodingClient(
         if (preferredCity == null && state.isNullOrBlank()) return null
         return listOfNotNull(preferredCity, state?.trim()?.ifBlank { null }).joinToString(", ")
     }
-
-    private fun extractState(resultNode: com.fasterxml.jackson.databind.JsonNode): String? {
-        val components = resultNode.path("address_components")
-        if (!components.isArray) return null
-        for (comp in components) {
-            val types = comp.path("types").mapNotNull { it.asText(null) }.toSet()
-            if ("administrative_area_level_1" in types) {
-                return comp.path("long_name").asText(null)
-            }
-        }
-        return null
-    }
 }
 
 data class GeocodeResult(
@@ -120,3 +99,10 @@ data class GeocodeResult(
     val rawResponse: String?,
     val status: String?
 )
+
+data class PincodeLookupResult(
+    val resolvedCityState: String?,
+    val rawResponse: String?,
+    val status: String?,
+    val source: String
+)