added login logic excl refresh call

backend/src/main/java/com/vaessl/app/connection/ConnectionService.java

@@ -8,24 +8,40 @@ import org.springframework.stereotype.Service;
 
 import com.vaessl.app.dto.ConnectionRequest;
 import com.vaessl.app.dto.ConnectionResponse;
+import com.vaessl.app.exception.ProviderNotFoundException;
 
 @Service
 public class ConnectionService {
 
     private final Map<String, ConnectionProvider> providerRegistry;
 
-    public ConnectionService(List<ConnectionProvider> providers) {
+    private final ConnectionRepository cRepository;
+
+    public ConnectionService(List<ConnectionProvider> providers, ConnectionRepository cRepository) {
         this.providerRegistry = providers.stream()
                 .collect(Collectors.toMap(ConnectionProvider::getServiceType, p -> p));
+        this.cRepository = cRepository;
     }
 
     public ConnectionResponse login(ConnectionRequest request) {
-        ConnectionProvider provider = providerRegistry.get(request.serviceType().toUpperCase());
+
+        ConnectionProvider provider = providerRegistry.get(request.serviceType());
 
         if (provider == null) {
-            throw new IllegalArgumentException("Unknown provider: " + request.serviceType());
+            throw new ProviderNotFoundException();
         }
 
-        return provider.authenticate(request);
+        ConnectionResponse response = provider.authenticate(request);
+
+        ConnectionEntity existing = cRepository.findByAppUrl(request.appUrl());
+
+        if (existing != null) {
+            provider.updateToRepository(existing, response);
+        } else {
+            ConnectionEntity newEntity = provider.connectionToEntity(request, response);
+            cRepository.save(newEntity);
+        }
+
+        return response;
     }
 }