refactored connection classes to be more generic and accept credentials of different apps.

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

@@ -0,0 +1,11 @@
+package com.vaessl.app.connection;
+
+import com.vaessl.app.dto.ConnectionRequest;
+import com.vaessl.app.dto.ConnectionResponse;
+
+public interface ConnectionProvider {
+
+    String getServiceType();
+    
+    ConnectionResponse authenticate (ConnectionRequest connectionRequest);
+}

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

@@ -1,7 +1,10 @@
 package com.vaessl.app.connection;
 
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
 import org.springframework.stereotype.Service;
-import org.springframework.web.client.RestClient;
 
 import com.vaessl.app.dto.ConnectionRequest;
 import com.vaessl.app.dto.ConnectionResponse;
@@ -9,20 +12,20 @@ import com.vaessl.app.dto.ConnectionResponse;
 @Service
 public class ConnectionService {
 
-    private final RestClient.Builder restClientBuilder;
+    private final Map<String, ConnectionProvider> providerRegistry;
 
-    public ConnectionService(RestClient.Builder restClientBuilder) {
-        this.restClientBuilder = restClientBuilder;
+    public ConnectionService(List<ConnectionProvider> providers) {
+        this.providerRegistry = providers.stream()
+                .collect(Collectors.toMap(ConnectionProvider::getServiceType, p -> p));
     }
 
     public ConnectionResponse login(ConnectionRequest request) {
-        // TODO: Look into Map<String, RestClient> to cache restclient requests.
-        return restClientBuilder.baseUrl(request.appUrl())
-                .build()
-                .post()
-                .uri("/api/v1/users/login")
-                .body(request)
-                .retrieve()
-                .body(ConnectionResponse.class);
+        ConnectionProvider provider = providerRegistry.get(request.serviceType().toUpperCase());
+
+        if (provider == null) {
+            throw new IllegalArgumentException("Unknown provider: " + request.serviceType());
+        }
+
+        return provider.authenticate(request);
     }
 }

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

@@ -0,0 +1,14 @@
+package com.vaessl.app.connection;
+
+import lombok.Getter;
+
+@Getter
+public enum Endpoints {
+    HOMEBOX_LOGIN("/api/v1/users/login");
+    
+    private final String endpoint;
+
+    Endpoints(String endpoint){
+        this.endpoint = endpoint;
+    }
+}

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

@@ -0,0 +1,42 @@
+package com.vaessl.app.connection;
+
+import java.util.Map;
+
+import org.springframework.stereotype.Component;
+import org.springframework.web.client.RestClient;
+
+import com.vaessl.app.dto.ConnectionRequest;
+import com.vaessl.app.dto.ConnectionResponse;
+
+import static com.vaessl.app.connection.Endpoints.*;
+
+@Component
+public class HomeBoxConnectionProvider implements ConnectionProvider {
+
+    private final RestClient.Builder restClientBuilder;
+
+    public HomeBoxConnectionProvider(RestClient.Builder restClientBuilder) {
+        this.restClientBuilder = restClientBuilder;
+    }
+
+    @Override
+    public String getServiceType() {
+        return "HOMEBOX";
+    }
+
+    @Override
+    public ConnectionResponse authenticate(ConnectionRequest connectionRequest) {
+        Map<String, Object> homeboxPayload = Map.of("username", connectionRequest.credentials().get("username"),
+                "password", connectionRequest.credentials().get("password"), "stayLoggedIn",
+                connectionRequest.stayLoggedIn());
+
+        return restClientBuilder.baseUrl(connectionRequest.appUrl())
+                .build()
+                .post()
+                .uri(HOMEBOX_LOGIN.getEndpoint())
+                .body(homeboxPayload)
+                .retrieve()
+                .body(ConnectionResponse.class);
+    }
+
+}