Re-added getScreenerFormPaths function

Author: Justin-MacIntosh

builder-api/src/main/java/org/acme/controller/ScreenerResource.java

@@ -28,17 +28,8 @@
 import java.util.List;
 import java.util.Map;
 import java.util.Optional;
-import org.acme.auth.AuthUtils;
-import org.acme.model.domain.*;
-import org.acme.model.dto.PublishScreenerRequest;
-import org.acme.model.dto.SaveSchemaRequest;
 import org.acme.model.dto.Screener.CreateScreenerRequest;
 import org.acme.model.dto.Screener.EditScreenerRequest;
-import org.acme.persistence.EligibilityCheckRepository;
-import org.acme.persistence.PublishedScreenerRepository;
-import org.acme.persistence.ScreenerRepository;
-import org.acme.persistence.StorageService;
-import org.acme.service.DmnService;
 
 @Path("/api")
 public class ScreenerResource {
@@ -270,6 +261,40 @@ public Response deleteScreener(
     }
   }
 
+  /**
+   * Returns the list of unique input paths required by all checks in a screener.
+   * This endpoint transforms inputDefinition schemas and extracts paths,
+   * replacing the frontend's transformInputDefinitionSchema and extractJsonSchemaPaths logic.
+   */
+  @GET
+  @Path("/screener/{screenerId}/form-paths")
+  public Response getScreenerFormPaths(@Context SecurityIdentity identity,
+                                        @PathParam("screenerId") String screenerId) {
+    String userId = AuthUtils.getUserId(identity);
+
+    Optional<Screener> screenerOpt = screenerRepository.getWorkingScreener(screenerId);
+    if (screenerOpt.isEmpty()) {
+      throw new NotFoundException();
+    }
+    Screener screener = screenerOpt.get();
+
+    if (!isUserAuthorizedToAccessScreenerByScreener(userId, screener)) {
+      return Response.status(Response.Status.UNAUTHORIZED).build();
+    }
+
+    try {
+      List<Benefit> benefits = screenerRepository.getBenefitsInScreener(screener);
+      List<String> paths = new ArrayList<>(inputSchemaService.extractAllInputPaths(benefits));
+      Collections.sort(paths);
+      return Response.ok().entity(new FormPathsResponse(paths)).build();
+    } catch (Exception e) {
+      Log.error(e);
+      return Response.status(Response.Status.INTERNAL_SERVER_ERROR)
+              .entity(Map.of("error", "Could not extract form paths"))
+              .build();
+    }
+  }
+
   private boolean isUserAuthorizedToAccessScreener(String userId, String screenerId) {
     Optional<Screener> screenerOptional =
         screenerRepository.getWorkingScreenerMetaDataOnly(screenerId);