RED-3587 - Return the most recent file modification date in the dossier stats

- add the recent lastUpdated file date and the recent fileManipulation date
- add junit tests

persistence-service-v1/persistence-service-api-v1/src/main/java/com/iqser/red/service/persistence/service/v1/api/model/dossiertemplate/dossier/DossierStats.java

@@ -4,6 +4,7 @@ import com.iqser.red.service.persistence.service.v1.api.model.dossiertemplate.do
 import com.iqser.red.service.persistence.service.v1.api.model.dossiertemplate.dossier.file.WorkflowStatus;
 import lombok.*;
 
+import java.time.OffsetDateTime;
 import java.util.Map;
 
 @Data
@@ -25,4 +26,6 @@ public class DossierStats {
     private boolean hasNoFlagsFilePresent; // true if at least one file in the dossier has none of the other flags
     private Map<ProcessingStatus, Integer> fileCountPerProcessingStatus;
     private Map<WorkflowStatus, Integer> fileCountPerWorkflowStatus;
+    private OffsetDateTime lastFileUpdateDate;
+    private OffsetDateTime fileManipulationDate;
 }

persistence-service-v1/persistence-service-server-v1/src/main/java/com/iqser/red/service/peristence/v1/server/service/DossierStatsService.java

@@ -9,6 +9,7 @@ import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 
+import java.util.Comparator;
 import java.util.List;
 import java.util.stream.Collectors;
 
@@ -87,7 +88,12 @@ public class DossierStatsService {
 
         var fileCountPerWorkflowStatus = files.stream().collect(Collectors.toMap(FileModel::getWorkflowStatus, e -> 1, Math::addExact));
         dossierStats.setFileCountPerWorkflowStatus(fileCountPerWorkflowStatus);
+
+
+        files.stream().sorted(Comparator.comparing(FileModel::getLastUpdated, Comparator.nullsLast(Comparator.reverseOrder())))
+                .findFirst().ifPresent((file) -> dossierStats.setLastFileUpdateDate(file.getLastUpdated()));
+       files.stream().sorted(Comparator.comparing(FileModel::getFileManipulationDate, Comparator.nullsLast(Comparator.reverseOrder())))
+                .findFirst().ifPresent((file) -> dossierStats.setFileManipulationDate(file.getFileManipulationDate()));
         return dossierStats;
     }
-
 }

persistence-service-v1/persistence-service-server-v1/src/test/java/com/iqser/red/service/peristence/v1/server/integration/tests/DossierStatsTest.java

@@ -14,6 +14,7 @@ import org.junit.Before;
 import org.junit.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 
+import java.time.OffsetDateTime;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
@@ -23,6 +24,10 @@ import static org.assertj.core.api.Assertions.assertThat;
 public class DossierStatsTest extends AbstractPersistenceServerServiceTest {
 
     private static final int NUMBER_PAGES_ANALYZED = 5;
+    private static final OffsetDateTime NOW = OffsetDateTime.now();
+    private static final OffsetDateTime OLDER_1 = NOW.minusSeconds(5);
+    private static final OffsetDateTime OLDER_2 = NOW.minusSeconds(15);
+
     @Autowired
     private DossierTemplateTesterAndProvider dossierTemplateTesterAndProvider;
 
@@ -51,6 +56,7 @@ public class DossierStatsTest extends AbstractPersistenceServerServiceTest {
         var file2 = fileTesterAndProvider.testAndProvideFile(dossier1, "file2");
 
         assertThat(fileClient.getDossierStatus(dossier1.getId()).size()).isEqualTo(2);
+
         // alter file 1
         var loadedFile1 = fileClient.getFileStatus(dossier1.getId(), file1.getId());
         assertThat(loadedFile1.isHasRedactions()).isFalse();
@@ -59,14 +65,19 @@ public class DossierStatsTest extends AbstractPersistenceServerServiceTest {
             file.setHasRedactions(true);
             file.setHasHints(true);
             file.setHasUpdates(true);
+            file.setLastUpdated(NOW);
+            file.setFileManipulationDate(null);
             fileRepository.save(file);
         });
         loadedFile1 = fileClient.getFileStatus(dossier1.getId(), file1.getId());
         assertThat(loadedFile1.isHasRedactions()).isTrue();
+        assertThat(loadedFile1.getLastUpdated()).isEqualTo(NOW);
 
         // alter file 2
         fileRepository.findById(file2.getId()).ifPresent((file) -> {
             file.setHasSuggestions(true);
+            file.setLastUpdated(OLDER_1);
+            file.setFileManipulationDate(OLDER_2);
             fileRepository.save(file);
         });
 
@@ -74,11 +85,19 @@ public class DossierStatsTest extends AbstractPersistenceServerServiceTest {
         dossier2 = dossierTesterAndProvider.provideTestDossier(dossierTemplate, "Dossier2");
         var file3 = fileTesterAndProvider.testAndProvideFile(dossier2, "file3");
         var file4 = fileTesterAndProvider.testAndProvideFile(dossier2, "file4");
+        //alter file 2
+        fileRepository.findById(file3.getId()).ifPresent((file) -> {
+            file.setLastUpdated(OLDER_1);
+            file.setFileManipulationDate(null);
+            fileRepository.save(file);
+        });
 
         //alter file 4
         fileRepository.findById(file4.getId()).ifPresent((file) -> {
             file.setHasHints(true);
             file.setWorkflowStatus(WorkflowStatus.APPROVED);
+            file.setLastUpdated(OLDER_2);
+            file.setFileManipulationDate(OLDER_2);
             fileRepository.save(file);
         });
     }
@@ -95,6 +114,8 @@ public class DossierStatsTest extends AbstractPersistenceServerServiceTest {
         assertThat(dossierStats.isHasUpdatesFilePresent()).isTrue();
         assertThat(dossierStats.isHasNoFlagsFilePresent()).isFalse();
         assertThat(dossierStats.getFileCountPerProcessingStatus().get(ProcessingStatus.PROCESSING)).isEqualTo(2);
+        assertThat(dossierStats.getLastFileUpdateDate()).isEqualTo(NOW);
+        assertThat(dossierStats.getFileManipulationDate()).isEqualTo(OLDER_2);
     }
 
     @Test
@@ -116,5 +137,7 @@ public class DossierStatsTest extends AbstractPersistenceServerServiceTest {
         assertThat(dossierStats.isHasNoFlagsFilePresent()).isTrue();
         assertThat(dossierStats.getFileCountPerWorkflowStatus().get(WorkflowStatus.NEW)).isEqualTo(1);
         assertThat(dossierStats.getFileCountPerWorkflowStatus().get(WorkflowStatus.APPROVED)).isEqualTo(1);
+        assertThat(dossierStats.getLastFileUpdateDate()).isEqualTo(OLDER_1);
+        assertThat(dossierStats.getFileManipulationDate()).isEqualTo(OLDER_2);
     }
 }