when removing data overlay update sorting order

rest-api/src/main/java/lcsb/mapviewer/api/projects/overlays/OverlayRestImpl.java

@@ -3,6 +3,7 @@ package lcsb.mapviewer.api.projects.overlays;
 import java.io.*;
 import java.nio.charset.StandardCharsets;
 import java.util.*;
+import java.util.stream.Collectors;
 
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
@@ -227,8 +228,13 @@ public class OverlayRestImpl extends BaseRestImpl {
   public Map<String, Object> removeOverlay(String projectId, Integer overlayId)
       throws QueryException, IOException {
     Layout layout = getOverlay(projectId, overlayId);
+    User owner = layout.getCreator();
+    Project project = layout.getProject();
     layoutService.removeLayout(layout, null);
-    List<Layout> overlays = layoutService.getLayoutsByProject(layout.getProject());
+    
+    List<Layout> overlays = layoutService.getLayoutsByProject(project).stream()
+        .filter(lay -> lay.getCreator() == owner).collect(Collectors.toList());
+
     overlays.sort(Layout.ORDER_COMPARATOR);
     for (int i = 0; i < overlays.size(); i++) {
       Layout overlay = overlays.get(i);

web/src/test/java/lcsb/mapviewer/web/OverlayControllerIntegrationTest.java

@@ -1206,4 +1206,33 @@ public class OverlayControllerIntegrationTest extends ControllerIntegrationTest
         .andExpect(status().isNotFound());
   }
 
+  @Test
+  public void testOrderAfterRemoveOverlay() throws Exception {
+    createAdmin(TEST_ADMIN_LOGIN, TEST_ADMIN_PASSWORD);
+    User user = createUser(TEST_USER_LOGIN, TEST_USER_PASSWORD);
+
+    Layout overlay1 = createOverlay(user);
+    overlay1.setOrderIndex(1);
+    Layout overlay2 = createOverlay(user);
+    overlay2.setOrderIndex(2);
+    Layout overlay3 = createOverlay(user);
+    overlay3.setOrderIndex(3);
+    
+    layoutDao.update(overlay1);
+    layoutDao.update(overlay2);
+    layoutDao.update(overlay3);
+
+    MockHttpSession session = createSession(TEST_ADMIN_LOGIN, TEST_ADMIN_PASSWORD);
+
+    RequestBuilder request = delete("/projects/" + TEST_PROJECT + "/overlays/" + overlay2.getId())
+        .contentType(MediaType.APPLICATION_FORM_URLENCODED)
+        .session(session);
+
+    mockMvc.perform(request)
+        .andExpect(status().is2xxSuccessful());
+    assertEquals(1, overlay1.getOrderIndex());
+    assertEquals(2, overlay3.getOrderIndex());
+  }
+
+
 }