found that idReference Incrementing when it shoudn't still looking for a fix, and fixed some sectioncell fetching logic in SectionCellService.java

MyINPulse-back/src/main/java/enseirb/myinpulse/service/SharedApiService.java

@@ -79,7 +79,7 @@ public class SharedApiService {
         LocalDateTime dateTime = LocalDateTime.parse(date, formatter);
 
         Project project = this.projectService.getProjectById(projectId);
-        return this.sectionCellService.getSectionCellsByProjectAndSectionIdBeforeDate(
+        return this.sectionCellService.getLatestSectionCellsByIdReferenceBeforeDate(
                 project, sectionId, dateTime);
     }
 

MyINPulse-back/src/main/java/enseirb/myinpulse/service/database/SectionCellService.java

@@ -14,7 +14,9 @@ import org.springframework.stereotype.Service;
 import org.springframework.web.server.ResponseStatusException;
 
 import java.time.LocalDateTime;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 import java.util.Optional;
 
 @Service
@@ -132,4 +134,37 @@ public class SectionCellService {
         return sectionCellRepository.findByProjectSectionCellAndSectionIdAndModificationDateBefore(
                 project, sectionId, date);
     }
+
+    public Iterable<SectionCell> getLatestSectionCellsByIdReferenceBeforeDate(
+            Project project, long sectionId, LocalDateTime date) {
+
+        // 1. Fetch ALL relevant SectionCells modified before the date
+        Iterable<SectionCell> allMatchingCells =
+                sectionCellRepository.findByProjectSectionCellAndSectionIdAndModificationDateBefore(
+                        project, sectionId, date);
+
+        // 2. Find the latest for each idReference
+        Map<Long, SectionCell> latestCellsByIdReference = new HashMap<>();
+
+        for (SectionCell cell : allMatchingCells) {
+            Long idReference = cell.getIdReference();
+
+            // Check if we've seen this idReference before
+            if (latestCellsByIdReference.containsKey(idReference)) {
+                // If yes, compare modification dates
+                SectionCell existingLatest = latestCellsByIdReference.get(idReference);
+
+                // If the current cell is more recent, update the map
+                if (cell.getModificationDate().isAfter(existingLatest.getModificationDate())) {
+                    latestCellsByIdReference.put(idReference, cell);
+                }
+            } else {
+                // If this is the first time we see this idReference, add it to the map
+                latestCellsByIdReference.put(idReference, cell);
+            }
+        }
+
+        // 3. Return the collection of the latest cells (the values from the map)
+        return latestCellsByIdReference.values();
+    }
 }