core/src/main/java/se/su/dsv/scipro/CoreConfig.java

@@ -145,6 +145,7 @@ import se.su.dsv.scipro.project.ProjectPeopleStatisticsServiceImpl;
 import se.su.dsv.scipro.project.ProjectRepo;
 import se.su.dsv.scipro.project.ProjectService;
 import se.su.dsv.scipro.project.ProjectServiceImpl;
+import se.su.dsv.scipro.project.split.SplitOrRestartProjectServiceImpl;
 import se.su.dsv.scipro.projectpartner.ProjectPartnerServiceImpl;
 import se.su.dsv.scipro.reflection.ReflectionService;
 import se.su.dsv.scipro.reflection.ReflectionServiceImpl;
@@ -814,6 +815,21 @@ public class CoreConfig {
         return new ProjectServiceImpl(projectRepo, clock, eventBus, em);
     }
 
+    @Bean
+    public SplitOrRestartProjectServiceImpl SplitOrRestartProjectService(
+        ProjectService projectService,
+        FinalSeminarService finalSeminarService,
+        RoughDraftApprovalService roughDraftApprovalService,
+        EventBus eventBus
+    ) {
+        return new SplitOrRestartProjectServiceImpl(
+            projectService,
+            finalSeminarService,
+            roughDraftApprovalService,
+            eventBus
+        );
+    }
+
     @Bean
     public ProjectTypeServiceImpl projectTypeService(Provider<EntityManager> em) {
         return new ProjectTypeServiceImpl(em);

core/src/main/java/se/su/dsv/scipro/milestones/service/MilestoneActivator.java

@@ -21,6 +21,7 @@ import se.su.dsv.scipro.peer.SecondPeerReviewCompletedEvent;
 import se.su.dsv.scipro.project.Project;
 import se.su.dsv.scipro.report.SupervisorGradingReportSubmittedEvent;
 import se.su.dsv.scipro.reviewing.FinalSeminarApprovalApprovedEvent;
+import se.su.dsv.scipro.reviewing.RoughDraftApprovalApprovedClonedEvent;
 import se.su.dsv.scipro.reviewing.RoughDraftApprovalApprovedEvent;
 import se.su.dsv.scipro.reviewing.RoughDraftApprovalRequestedEvent;
 import se.su.dsv.scipro.system.User;
@@ -136,6 +137,11 @@ public class MilestoneActivator {
         activateProjectMilestone(Set.of(event.getName()), event.getProject());
     }
 
+    @Subscribe
+    public void reviewerApprovalApprovedClone(RoughDraftApprovalApprovedClonedEvent event) {
+        activateProjectMilestone(Set.of(event.getName()), event.getProject());
+    }
+
     @Subscribe
     public void finalSeminarThesisDeleted(FinalSeminarThesisDeletedEvent event) {
         deactivateProjectMilestone(Set.of("FinalSeminarThesisUploaded"), event.getFinalSeminar().getProject());

core/src/main/java/se/su/dsv/scipro/project/Project.java

@@ -23,6 +23,7 @@ import jakarta.persistence.MapKeyJoinColumn;
 import jakarta.persistence.PrePersist;
 import jakarta.persistence.PreUpdate;
 import jakarta.persistence.Table;
+import java.time.Instant;
 import java.time.LocalDate;
 import java.util.ArrayList;
 import java.util.Collection;
@@ -113,6 +114,18 @@ public class Project extends DomainObject {
     @Column(name = "daisy_identifier", unique = true)
     private Integer identifier;
 
+    @Basic
+    @Column(name = "parent_project_id")
+    private Long parentProjectId;
+
+    @Basic
+    @Column(name = "root_project_id")
+    private Long rootProjectId;
+
+    @Basic
+    @Column(name = "clone_timestamp")
+    private Instant cloneTimestamp;
+
     // ----------------------------------------------------------------------------------
     // Embedded JPA-mapping
     // ----------------------------------------------------------------------------------
@@ -365,6 +378,30 @@ public class Project extends DomainObject {
         this.userNotes = userNotes;
     }
 
+    public Long getParentProjectId() {
+        return parentProjectId;
+    }
+
+    public void setParentProjectId(Long parentProjectId) {
+        this.parentProjectId = parentProjectId;
+    }
+
+    public Long getRootProjectId() {
+        return rootProjectId;
+    }
+
+    public void setRootProjectId(Long rootProjectId) {
+        this.rootProjectId = rootProjectId;
+    }
+
+    public Instant getCloneTimestamp() {
+        return cloneTimestamp;
+    }
+
+    public void setCloneTimestamp(Instant cloneTimestamp) {
+        this.cloneTimestamp = cloneTimestamp;
+    }
+
     // ----------------------------------------------------------------------------------
     // Methods Common To All Objects
     // ----------------------------------------------------------------------------------

core/src/main/java/se/su/dsv/scipro/project/split/SplitOrRestartProjectService.java

@@ -0,0 +1,28 @@
+package se.su.dsv.scipro.project.split;
+
+import java.util.List;
+import se.su.dsv.scipro.project.Project;
+import se.su.dsv.scipro.reviewing.RoughDraftApproval;
+
+public interface SplitOrRestartProjectService {
+    enum SplittableStatus {
+        NOT_EXIST,
+        NOT_ACTIVE,
+        NOT_TWO_PARTICIPANTS,
+        PHASE_TWO_STARTED,
+        FINAL_SEMINAR_PHASE_STARTED,
+        OK,
+    }
+
+    record SplittableStatusRecord(
+        SplittableStatus splittableStatus,
+        Project project,
+        RoughDraftApproval roughDraftApproval
+    ) {}
+
+    SplittableStatusRecord getSplittableStatus(long projectId);
+
+    void splitProject(long projectId);
+
+    List<Project> getChildProjects(long parentProjectId);
+}

core/src/main/java/se/su/dsv/scipro/project/split/SplitOrRestartProjectServiceImpl.java

@@ -0,0 +1,127 @@
+package se.su.dsv.scipro.project.split;
+
+import com.google.common.eventbus.EventBus;
+import jakarta.inject.Inject;
+import jakarta.transaction.Transactional;
+import java.time.Instant;
+import java.util.Date;
+import java.util.List;
+import java.util.Optional;
+import se.su.dsv.scipro.finalseminar.FinalSeminarService;
+import se.su.dsv.scipro.project.Project;
+import se.su.dsv.scipro.project.ProjectService;
+import se.su.dsv.scipro.project.ProjectStatus;
+import se.su.dsv.scipro.project.QProject;
+import se.su.dsv.scipro.reviewing.RoughDraftApproval;
+import se.su.dsv.scipro.reviewing.RoughDraftApprovalApprovedClonedEvent;
+import se.su.dsv.scipro.reviewing.RoughDraftApprovalService;
+import se.su.dsv.scipro.system.User;
+
+public class SplitOrRestartProjectServiceImpl implements SplitOrRestartProjectService {
+
+    private final ProjectService projectService;
+    private final FinalSeminarService finalSeminarService;
+    private final RoughDraftApprovalService roughDraftApprovalService;
+    private final EventBus eventBus;
+
+    @Inject
+    public SplitOrRestartProjectServiceImpl(
+        ProjectService projectService,
+        FinalSeminarService finalSeminarService,
+        RoughDraftApprovalService roughDraftApprovalService,
+        EventBus eventBus
+    ) {
+        this.projectService = projectService;
+        this.finalSeminarService = finalSeminarService;
+        this.roughDraftApprovalService = roughDraftApprovalService;
+        this.eventBus = eventBus;
+    }
+
+    @Override
+    @Transactional
+    public SplittableStatusRecord getSplittableStatus(long projectId) {
+        Project project = projectService.findOne(projectId);
+        if (project == null) return new SplittableStatusRecord(SplittableStatus.NOT_EXIST, null, null);
+
+        if (project.getProjectStatus() != ProjectStatus.ACTIVE) {
+            return new SplittableStatusRecord(SplittableStatus.NOT_ACTIVE, project, null);
+        }
+
+        if (project.getProjectParticipants().size() != 2) {
+            return new SplittableStatusRecord(SplittableStatus.NOT_TWO_PARTICIPANTS, project, null);
+        }
+
+        if (finalSeminarService.findByProject(project) != null) {
+            return new SplittableStatusRecord(SplittableStatus.FINAL_SEMINAR_PHASE_STARTED, project, null);
+        }
+
+        Optional<RoughDraftApproval> o = roughDraftApprovalService.findBy(project);
+        if (o.isPresent() && !o.get().isDecided()) {
+            return new SplittableStatusRecord(SplittableStatus.PHASE_TWO_STARTED, project, null);
+        }
+
+        if (o.isPresent() && o.get().isApproved()) {
+            return new SplittableStatusRecord(SplittableStatus.OK, project, o.get());
+        } else {
+            return new SplittableStatusRecord(SplittableStatus.OK, project, null);
+        }
+    }
+
+    @Override
+    @Transactional
+    public void splitProject(long projectId) {
+        SplittableStatusRecord result = getSplittableStatus(projectId);
+        if (result.splittableStatus() != SplittableStatus.OK) {
+            throw new IllegalStateException(
+                "Project must to be verified to be able to split " + "before this method can be called."
+            );
+        }
+
+        Project project = result.project();
+
+        for (User author : project.getProjectParticipants()) {
+            Project childProject = new Project();
+
+            childProject.setTitle(project.getTitle());
+            childProject.setProjectType(project.getProjectType());
+            childProject.setProjectStatus(ProjectStatus.ACTIVE);
+            childProject.setResearchArea(project.getResearchArea());
+
+            childProject.setStartDate(project.getStartDate());
+            childProject.setExpectedEndDate(project.getExpectedEndDate());
+
+            childProject.setHeadSupervisor(project.getHeadSupervisor());
+            childProject.setProjectParticipants(List.of(author));
+            childProject.setCoSupervisors(project.getCoSupervisors());
+
+            childProject.setReviewers(project.getReviewers());
+
+            childProject.setParentProjectId(project.getId());
+            childProject.setRootProjectId(
+                project.getRootProjectId() != null ? project.getRootProjectId() : project.getId()
+            );
+            childProject.setCloneTimestamp(Instant.now());
+
+            childProject = projectService.save(childProject);
+
+            // Add cloned RoughDraftApproval if it's 'APPROVED'
+            RoughDraftApproval rda = result.roughDraftApproval();
+            if (rda != null && rda.isApproved()) {
+                RoughDraftApproval clonedRda = roughDraftApprovalService.saveCloned(rda.cloneToProject(childProject));
+
+                // Send event to eventBus to synchronize eventual Phase Two Approval with MileStone
+                eventBus.post(new RoughDraftApprovalApprovedClonedEvent(clonedRda));
+            }
+        }
+
+        // Parent project will set as inactive
+        project.setProjectStatus(ProjectStatus.INACTIVE);
+        projectService.save(project);
+    }
+
+    @Override
+    @Transactional
+    public List<Project> getChildProjects(long parentProjectId) {
+        return projectService.findAll(QProject.project.rootProjectId.eq(parentProjectId));
+    }
+}

core/src/main/java/se/su/dsv/scipro/reviewing/Decision.java

@@ -196,6 +196,25 @@ public class Decision {
         decideWithDecisionDate(status, reason, attachment, Instant.now());
     }
 
+    Decision cloneToReviewerApproval(RoughDraftApproval roughDraftApproval) {
+        Decision clonedDecision = new Decision();
+        clonedDecision.reviewerApproval = roughDraftApproval;
+
+        clonedDecision.status = this.status;
+        clonedDecision.reason = this.reason;
+        clonedDecision.comment = this.comment;
+        clonedDecision.requested = this.requested;
+        clonedDecision.decisionDate = this.decisionDate;
+        clonedDecision.deadline = this.deadline;
+        clonedDecision.reviewerAssignedAt = this.reviewerAssignedAt;
+
+        clonedDecision.assignedReviewer = this.assignedReviewer;
+        clonedDecision.attachment = this.attachment;
+        clonedDecision.thesis = this.thesis;
+
+        return clonedDecision;
+    }
+
     private void decideWithDecisionDate(
         final Status status,
         final String reason,

core/src/main/java/se/su/dsv/scipro/reviewing/DecisionRepositoryImpl.java

@@ -25,6 +25,7 @@ public class DecisionRepositoryImpl extends AbstractRepository implements Decisi
                     .eq(reviewer)
                     .and(QDecision.decision.reviewerAssignedAt.goe(fromDate))
                     .and(QDecision.decision.reviewerAssignedAt.loe(toDate))
+                    .and(QDecision.decision.reviewerApproval.isCloned.isFalse())
             )
             .distinct()
             .fetchCount();

core/src/main/java/se/su/dsv/scipro/reviewing/ReviewerApproval.java

@@ -1,6 +1,8 @@
 package se.su.dsv.scipro.reviewing;
 
+import jakarta.persistence.Basic;
 import jakarta.persistence.CascadeType;
+import jakarta.persistence.Column;
 import jakarta.persistence.DiscriminatorColumn;
 import jakarta.persistence.Entity;
 import jakarta.persistence.GeneratedValue;
@@ -11,6 +13,7 @@ import jakarta.persistence.OneToMany;
 import jakarta.persistence.OneToOne;
 import jakarta.persistence.OrderBy;
 import jakarta.persistence.Table;
+import java.time.Instant;
 import java.util.Collections;
 import java.util.Date;
 import java.util.LinkedList;
@@ -32,6 +35,14 @@ public abstract class ReviewerApproval extends DomainObject {
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
+    @Basic
+    @Column(name = "is_cloned")
+    protected Boolean isCloned = false;
+
+    @Basic
+    @Column(name = "clone_timestamp")
+    protected Instant cloneTimestamp;
+
     // ----------------------------------------------------------------------------------
     // JPA-mappings of foreign keys in this table (reviewer_approval) referencing other
     // tables.
@@ -59,6 +70,22 @@ public abstract class ReviewerApproval extends DomainObject {
         return this.project;
     }
 
+    public Boolean getCloned() {
+        return isCloned;
+    }
+
+    public void setCloned(Boolean cloned) {
+        isCloned = cloned;
+    }
+
+    public Instant getCloneTimestamp() {
+        return cloneTimestamp;
+    }
+
+    public void setCloneTimestamp(Instant cloneDate) {
+        this.cloneTimestamp = cloneDate;
+    }
+
     // ----------------------------------------------------------------------------------
     // Other methods
     // ----------------------------------------------------------------------------------

core/src/main/java/se/su/dsv/scipro/reviewing/RoughDraftApproval.java

@@ -1,7 +1,8 @@
 package se.su.dsv.scipro.reviewing;
 
 import jakarta.persistence.Entity;
-import java.util.*;
+import java.time.Instant;
+import java.util.Date;
 import se.su.dsv.scipro.file.FileReference;
 import se.su.dsv.scipro.project.Project;
 
@@ -24,4 +25,15 @@ public class RoughDraftApproval extends ReviewerApproval {
     public Step getStep() {
         return Step.ROUGH_DRAFT_APPROVAL;
     }
+
+    public RoughDraftApproval cloneToProject(final Project newProject) {
+        RoughDraftApproval rda = new RoughDraftApproval();
+        rda.project = newProject;
+        this.decisions.forEach(decision -> rda.decisions.add(decision.cloneToReviewerApproval(rda)));
+
+        rda.isCloned = true;
+        rda.cloneTimestamp = Instant.now();
+
+        return rda;
+    }
 }

core/src/main/java/se/su/dsv/scipro/reviewing/RoughDraftApprovalApprovedClonedEvent.java

@@ -0,0 +1,14 @@
+package se.su.dsv.scipro.reviewing;
+
+import se.su.dsv.scipro.project.Project;
+
+public record RoughDraftApprovalApprovedClonedEvent(ReviewerApproval process) {
+    public Project getProject() {
+        return process.getProject();
+    }
+
+    public String getName() {
+        ReviewerApproval.Step step = process.getStep();
+        return step.getDeclaringClass().getSimpleName() + "." + step.name();
+    }
+}

core/src/main/java/se/su/dsv/scipro/reviewing/RoughDraftApprovalService.java

@@ -1,3 +1,5 @@
 package se.su.dsv.scipro.reviewing;
 
-public interface RoughDraftApprovalService extends ReviewerApprovalService<RoughDraftApproval> {}
+public interface RoughDraftApprovalService extends ReviewerApprovalService<RoughDraftApproval> {
+    RoughDraftApproval saveCloned(RoughDraftApproval approval);
+}

core/src/main/java/se/su/dsv/scipro/reviewing/RoughDraftApprovalServiceImpl.java

@@ -71,4 +71,10 @@ public class RoughDraftApprovalServiceImpl
     public Optional<RoughDraftApproval> findBy(Project project) {
         return Optional.ofNullable(findOne(QRoughDraftApproval.roughDraftApproval.project.eq(project)));
     }
+
+    @Override
+    @Transactional
+    public RoughDraftApproval saveCloned(RoughDraftApproval approval) {
+        return save(approval);
+    }
 }

core/src/main/resources/db/migration/V7__project_parent_phase2_review.sql

@@ -0,0 +1,28 @@
+
+alter table `project`
+    add column `parent_project_id` bigint(20) null default null;
+
+alter table `project`
+    add column `root_project_id` bigint(20) null default null;
+
+alter table `project`
+    add column `clone_timestamp` datetime null default null;
+
+alter table `project`
+    add constraint fk_project_parent_project_id_project_id
+        foreign key (parent_project_id) references project(id)
+            on delete cascade on update cascade;
+
+alter table `project`
+    add constraint fk_project_root_project_id_project_id
+        foreign key (root_project_id) references project(id)
+            on delete cascade on update cascade;
+
+
+alter table `reviewer_approval`
+    add column `is_cloned` boolean not null default false;
+
+update `reviewer_approval` set is_cloned = false;
+
+alter table `reviewer_approval`
+    add column `clone_timestamp` datetime null default null;

core/src/test/java/se/su/dsv/scipro/project/split/SplitOrRestartProjectServiceIntegrationTest.java

@@ -0,0 +1,274 @@
+package se.su.dsv.scipro.project.split;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static se.su.dsv.scipro.project.split.SplitOrRestartProjectService.SplittableStatus;
+import static se.su.dsv.scipro.project.split.SplitOrRestartProjectService.SplittableStatusRecord;
+
+import jakarta.inject.Inject;
+import java.io.InputStream;
+import java.time.LocalDate;
+import java.time.Year;
+import java.time.ZonedDateTime;
+import java.util.*;
+import java.util.function.Function;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import se.su.dsv.scipro.file.FileUpload;
+import se.su.dsv.scipro.finalseminar.FinalSeminar;
+import se.su.dsv.scipro.project.Project;
+import se.su.dsv.scipro.project.ProjectStatus;
+import se.su.dsv.scipro.reviewing.*;
+import se.su.dsv.scipro.security.auth.roles.Roles;
+import se.su.dsv.scipro.system.*;
+import se.su.dsv.scipro.test.IntegrationTest;
+
+public class SplitOrRestartProjectServiceIntegrationTest extends IntegrationTest {
+
+    private static int TARGET = 3;
+    private static int REMAINING_TARGET = 2;
+
+    @Inject
+    private SplitOrRestartProjectService splitOrRestartProjectService;
+
+    @Inject
+    private RoughDraftApprovalService roughDraftApprovalService;
+
+    @Inject
+    private FinalSeminarApprovalService finalSeminarApprovalService;
+
+    @Inject
+    private ReviewerAssignmentService reviewerAssignmentService;
+
+    @Inject
+    private ReviewerCapacityService reviewerCapacityService;
+
+    private ResearchArea researchArea;
+    private Project parentProject;
+    private User supervisor;
+    private User reviewer;
+    private User author1;
+    private User author2;
+
+    @BeforeEach
+    public void setUp() {
+        ProjectType bachelor = save(new ProjectType(DegreeType.BACHELOR, "Bachelor", "Bachelor"));
+
+        researchArea = new ResearchArea();
+        researchArea.setTitle("Computer Science");
+        researchArea = save(researchArea);
+
+        parentProject = createProject(bachelor, ProjectStatus.ACTIVE);
+    }
+
+    @Test
+    public void project_must_exist() {
+        SplittableStatusRecord record = splitOrRestartProjectService.getSplittableStatus(0);
+        SplittableStatus status = record.splittableStatus();
+
+        assertEquals(SplittableStatus.NOT_EXIST, status);
+    }
+
+    @Test
+    public void project_must_be_active() {
+        parentProject.setProjectStatus(ProjectStatus.INACTIVE);
+        parentProject = save(parentProject);
+
+        SplittableStatusRecord record = splitOrRestartProjectService.getSplittableStatus(parentProject.getId());
+        SplittableStatus status = record.splittableStatus();
+
+        assertEquals(SplittableStatus.NOT_ACTIVE, status);
+    }
+
+    @Test
+    public void project_must_have_two_participants() {
+        SplittableStatusRecord record = splitOrRestartProjectService.getSplittableStatus(parentProject.getId());
+        SplittableStatus status = record.splittableStatus();
+
+        assertEquals(SplittableStatus.NOT_TWO_PARTICIPANTS, status);
+    }
+
+    @Test
+    public void project_phase_two_started() {
+        setUpBeforePhaseTwo();
+
+        SplittableStatusRecord record = splitOrRestartProjectService.getSplittableStatus(parentProject.getId());
+        SplittableStatus status = record.splittableStatus();
+
+        assertEquals(SplittableStatus.PHASE_TWO_STARTED, status);
+    }
+
+    @Test
+    public void split_on_failed_phase_two() {
+        setUpBeforePhaseTwo();
+
+        Optional<RoughDraftApproval> optional = this.roughDraftApprovalService.findBy(parentProject);
+        optional.ifPresent(rda -> rda.reject("Fail", Optional.empty()));
+
+        SplittableStatusRecord record = splitOrRestartProjectService.getSplittableStatus(parentProject.getId());
+        SplittableStatus status = record.splittableStatus();
+
+        assertEquals(SplittableStatus.OK, status);
+
+        splitOrRestartProjectService.splitProject(parentProject.getId());
+
+        ReviewerCapacityService.RemainingTargets remainingTargets = reviewerCapacityService.getRemainingTargets(
+            reviewer,
+            Year.now()
+        );
+        // Todo: improve this with higher precision by using MutabledFixedClock
+        assertTrue(remainingTargets.spring() == REMAINING_TARGET || remainingTargets.autumn() == REMAINING_TARGET);
+
+        List<Project> childProjects = splitOrRestartProjectService.getChildProjects(parentProject.getId());
+
+        assertEquals(ProjectStatus.INACTIVE, parentProject.getProjectStatus());
+        assertEquals(2, childProjects.size());
+
+        childProjects.forEach(project -> {
+            assertEquals(1, project.getProjectParticipants().size());
+            assertEquals(supervisor, project.getHeadSupervisor());
+            assertEquals(ProjectStatus.ACTIVE, project.getProjectStatus());
+            assertTrue(roughDraftApprovalService.findBy(project).isEmpty());
+        });
+    }
+
+    @Test
+    public void split_on_approved_phase_two() {
+        setUpBeforePhaseTwo();
+
+        Optional<RoughDraftApproval> optional = this.roughDraftApprovalService.findBy(parentProject);
+        optional.ifPresent(rda -> rda.approve("Approve", Optional.empty()));
+
+        SplittableStatusRecord record = splitOrRestartProjectService.getSplittableStatus(parentProject.getId());
+        SplittableStatus status = record.splittableStatus();
+
+        assertEquals(SplittableStatus.OK, status);
+
+        splitOrRestartProjectService.splitProject(parentProject.getId());
+
+        ReviewerCapacityService.RemainingTargets remainingTargets = reviewerCapacityService.getRemainingTargets(
+            reviewer,
+            Year.now()
+        );
+        // todo: improve this by using MutableFixedClock
+        assertTrue(remainingTargets.spring() == REMAINING_TARGET || remainingTargets.autumn() == REMAINING_TARGET);
+
+        List<Project> childProjects = splitOrRestartProjectService.getChildProjects(parentProject.getId());
+
+        assertEquals(ProjectStatus.INACTIVE, parentProject.getProjectStatus());
+        assertEquals(2, childProjects.size());
+
+        childProjects.forEach(project -> {
+            assertEquals(1, project.getProjectParticipants().size());
+            assertEquals(supervisor, project.getHeadSupervisor());
+            assertEquals(ProjectStatus.ACTIVE, project.getProjectStatus());
+
+            Optional<RoughDraftApproval> optionalRda = roughDraftApprovalService.findBy(project);
+            assertTrue(optionalRda.isPresent());
+            assertTrue(optional.get().isApproved());
+        });
+    }
+
+    @Test
+    public void split_on_final_seminar_phase_started() {
+        setUpBeforePhaseTwo();
+
+        Optional<RoughDraftApproval> optional = this.roughDraftApprovalService.findBy(parentProject);
+        optional.ifPresent(rda -> rda.approve("Approve", Optional.empty()));
+
+        FinalSeminar finalSeminar = new FinalSeminar();
+        finalSeminar.setProject(parentProject);
+        finalSeminar.setStartDate(Date.from(ZonedDateTime.now().plusDays(10).toInstant()));
+        finalSeminar.setRoom("room");
+        finalSeminar.setPresentationLanguage(Language.ENGLISH);
+        parentProject.setLanguage(Language.ENGLISH);
+
+        save(finalSeminar);
+
+        SplittableStatusRecord record = splitOrRestartProjectService.getSplittableStatus(parentProject.getId());
+        SplittableStatus status = record.splittableStatus();
+
+        assertEquals(SplittableStatus.FINAL_SEMINAR_PHASE_STARTED, status);
+    }
+
+    private Project createProject(ProjectType projectType, ProjectStatus active) {
+        supervisor = createEmployee("Eric", "Employee", "eric@example.com", false);
+
+        Project project = new Project();
+        project.setTitle("Some title");
+        project.setProjectType(projectType);
+        project.setProjectStatus(active);
+        project.setHeadSupervisor(supervisor);
+        project.setStartDate(LocalDate.now());
+
+        author1 = createUser("Adam", "Student", "adam.student@example.com");
+        project.addProjectParticipant(author1);
+
+        project = save(project);
+        return project;
+    }
+
+    private User createEmployee(String firstName, String lastName, String email, boolean isReviewer) {
+        User employee = createUser(firstName, lastName, email);
+
+        Set<ResearchArea> researchAreas = new HashSet<>();
+        researchAreas.add(researchArea);
+        employee.setResearchAreas(researchAreas);
+
+        if (isReviewer) {
+            employee.addRole(Roles.REVIEWER);
+        }
+
+        save(employee);
+        return employee;
+    }
+
+    private User createUser(String firstName, String lastName, String email) {
+        User user = User.builder().firstName(firstName).lastName(lastName).emailAddress(email).build();
+        return save(user);
+    }
+
+    private void setUpBeforePhaseTwo() {
+        author2 = createUser("Bertil", "Student", "bertil.student@example.com");
+        parentProject.addProjectParticipant(author2);
+        save(parentProject);
+
+        roughDraftApprovalService.requestApproval(parentProject, dummyFile(), "comment");
+
+        reviewer = createEmployee("Lisa", "Employee", "lisa.employee@example.com", true);
+        reviewerCapacityService.assignTarget(
+            reviewer,
+            new ReviewerCapacityService.Target(Year.now(), TARGET, TARGET, "")
+        );
+        reviewerAssignmentService.assignReviewer(parentProject, reviewer);
+    }
+
+    private FileUpload dummyFile() {
+        return new FileUpload() {
+            @Override
+            public String getFileName() {
+                return "dummy.tmp";
+            }
+
+            @Override
+            public String getContentType() {
+                return "text/plain";
+            }
+
+            @Override
+            public User getUploader() {
+                return null;
+            }
+
+            @Override
+            public long getSize() {
+                return 0;
+            }
+
+            @Override
+            public <T> T handleData(Function<InputStream, T> handler) {
+                return handler.apply(InputStream.nullInputStream());
+            }
+        };
+    }
+}

test-data/src/main/java/se/su/dsv/scipro/testdata/DataInitializer.java

@@ -73,6 +73,9 @@ public class DataInitializer implements Lifecycle, BaseData, Factory {
     @Inject
     private MilestoneActivityTemplateService milestoneActivityTemplateService;
 
+    @Inject
+    private EventService eventService;
+
     @Inject
     private FileService fileService;
 
@@ -2016,34 +2019,37 @@ public class DataInitializer implements Lifecycle, BaseData, Factory {
             MilestoneActivityTemplate.Type.STUDENT,
             "First meeting held",
             "First meeting with supervisor.",
-            milestonePhaseTemplate1,
-            null
-        );
-        createMileStone(
-            MilestoneActivityTemplate.Type.PROJECT,
-            "Project plan approved",
-            "Project plan approved by supervisor.",
-            milestonePhaseTemplate1,
-            null
+            milestonePhaseTemplate1
         );
 
         createMileStone(
             MilestoneActivityTemplate.Type.PROJECT,
-            "Rough draft sent to reviewer for approval",
-            "Rough draft approved by reviewer.",
-            milestonePhaseTemplate2,
-            null
+            "Project plan approved",
+            "Project plan approved by supervisor.",
+            milestonePhaseTemplate1
         );
+
+        List<Event> events = eventService.findAll();
+
         createMileStone(
             MilestoneActivityTemplate.Type.PROJECT,
-            "Rough draft approved by reviewer",
+            "Rough draft sent to reviewer for approval (Auto)",
+            "Rough draft sent to the reviewer for the first time.",
+            milestonePhaseTemplate2,
+            events.stream().filter(event -> event.getName().equals("RoughDraftApprovalRequested")).findFirst().get()
+        );
+
+        createMileStone(
+            MilestoneActivityTemplate.Type.PROJECT,
+            "Rough draft approved by reviewer (Auto)",
             "Rough draft approved.",
             milestonePhaseTemplate2,
-            null
+            events.stream().filter(event -> event.getName().equals("Step.ROUGH_DRAFT_APPROVAL")).findFirst().get()
         );
+
         createMileStone(
             MilestoneActivityTemplate.Type.STUDENT,
-            "Peer review 1",
+            "Peer review 1 (Auto)",
             "This is a recommendation of when to perform peer review 1.",
             milestonePhaseTemplate2,
             MilestoneActivityTemplate.PEER_REVIEW_ONE
@@ -2053,9 +2059,9 @@ public class DataInitializer implements Lifecycle, BaseData, Factory {
             MilestoneActivityTemplate.Type.PROJECT,
             "Result and discussion completed and approved",
             "Result and discussion.",
-            milestonePhaseTemplate3,
-            null
+            milestonePhaseTemplate3
         );
+
         createMileStone(
             MilestoneActivityTemplate.Type.STUDENT,
             "Peer review 2",
@@ -2068,9 +2074,9 @@ public class DataInitializer implements Lifecycle, BaseData, Factory {
             MilestoneActivityTemplate.Type.PROJECT,
             "Thesis approved for final seminar presentation",
             "Thesis approved for final seminar.",
-            milestonePhaseTemplate4,
-            null
+            milestonePhaseTemplate4
         );
+
         createMileStone(
             MilestoneActivityTemplate.Type.PROJECT,
             "Final seminar created",
@@ -2078,6 +2084,7 @@ public class DataInitializer implements Lifecycle, BaseData, Factory {
             milestonePhaseTemplate4,
             MilestoneActivityTemplate.CREATE_SEMINAR
         );
+
         createMileStone(
             MilestoneActivityTemplate.Type.PROJECT,
             "Final seminar thesis uploaded",
@@ -2085,64 +2092,93 @@ public class DataInitializer implements Lifecycle, BaseData, Factory {
             milestonePhaseTemplate4,
             MilestoneActivityTemplate.THESIS_UPLOADED
         );
+
         createMileStone(
             MilestoneActivityTemplate.Type.STUDENT,
             "Perform an oral and written opposition",
             "Opposition.",
-            milestonePhaseTemplate4,
-            null
+            milestonePhaseTemplate4
         );
+
         createMileStone(
             MilestoneActivityTemplate.Type.STUDENT,
             "Active participation in a final seminar",
             "Active participation.",
-            milestonePhaseTemplate4,
-            null
+            milestonePhaseTemplate4
         );
+
         createMileStone(
             MilestoneActivityTemplate.Type.STUDENT,
             "Defend the thesis in a final seminar",
             "Defence of final thesis.",
-            milestonePhaseTemplate4,
-            null
+            milestonePhaseTemplate4
         );
 
         createMileStone(
             MilestoneActivityTemplate.Type.PROJECT,
             "Revised final thesis of the submitted thesis",
             "Revised final thesis.",
-            milestonePhaseTemplate5,
-            null
+            milestonePhaseTemplate5
         );
+
         createMileStone(
             MilestoneActivityTemplate.Type.PROJECT,
             "Originality report approved",
             "Originality report.",
-            milestonePhaseTemplate5,
-            null
+            milestonePhaseTemplate5
         );
+
         createMileStone(
             MilestoneActivityTemplate.Type.PROJECT,
             "Supervisor and reviewer final grading report submitted",
             "Final grading report.",
-            milestonePhaseTemplate5,
-            null
+            milestonePhaseTemplate5
         );
+
         createMileStone(
             MilestoneActivityTemplate.Type.STUDENT,
             "Grading completed",
             "Grading completed by examiner.",
-            milestonePhaseTemplate5,
-            null
+            milestonePhaseTemplate5
         );
     }
 
+    private void createMileStone(
+        MilestoneActivityTemplate.Type type,
+        String title,
+        String description,
+        MilestonePhaseTemplate milestonePhaseTemplate
+    ) {
+        createMileStone(type, title, description, milestonePhaseTemplate, null, null);
+    }
+
+    private void createMileStone(
+        MilestoneActivityTemplate.Type type,
+        String title,
+        String description,
+        MilestonePhaseTemplate milestonePhaseTemplate,
+        Event event
+    ) {
+        createMileStone(type, title, description, milestonePhaseTemplate, null, event);
+    }
+
     private void createMileStone(
         MilestoneActivityTemplate.Type type,
         String title,
         String description,
         MilestonePhaseTemplate milestonePhaseTemplate,
         String code
+    ) {
+        createMileStone(type, title, description, milestonePhaseTemplate, code, null);
+    }
+
+    private void createMileStone(
+        MilestoneActivityTemplate.Type type,
+        String title,
+        String description,
+        MilestonePhaseTemplate milestonePhaseTemplate,
+        String code,
+        Event event
     ) {
         MilestoneActivityTemplate milestoneActivityTemplate = new MilestoneActivityTemplate(type, title, description);
         milestoneActivityTemplate.addProjectType(bachelorClass);
@@ -2150,6 +2186,7 @@ public class DataInitializer implements Lifecycle, BaseData, Factory {
         milestoneActivityTemplate.addProjectType(magisterClass);
         milestoneActivityTemplate.setMilestonePhaseTemplate(milestonePhaseTemplate);
         milestoneActivityTemplate.setCode(code);
+        milestoneActivityTemplate.setActivatedBy(event);
         milestoneActivityTemplateService.save(milestoneActivityTemplate, milestonePhaseTemplate);
     }
 

test-data/src/main/java/se/su/dsv/scipro/testdata/populators/SplitProjectPopulator.java

@@ -0,0 +1,102 @@
+package se.su.dsv.scipro.testdata.populators;
+
+import jakarta.inject.Inject;
+import java.io.InputStream;
+import java.time.LocalDate;
+import java.time.Year;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Function;
+import org.springframework.stereotype.Service;
+import se.su.dsv.scipro.file.FileUpload;
+import se.su.dsv.scipro.project.Project;
+import se.su.dsv.scipro.project.ProjectService;
+import se.su.dsv.scipro.reviewing.ReviewerAssignmentService;
+import se.su.dsv.scipro.reviewing.ReviewerCapacityService;
+import se.su.dsv.scipro.reviewing.RoughDraftApproval;
+import se.su.dsv.scipro.reviewing.RoughDraftApprovalService;
+import se.su.dsv.scipro.system.User;
+import se.su.dsv.scipro.testdata.BaseData;
+import se.su.dsv.scipro.testdata.Factory;
+import se.su.dsv.scipro.testdata.TestDataPopulator;
+
+@Service
+public class SplitProjectPopulator implements TestDataPopulator {
+
+    private final ProjectService projectService;
+    private final ReviewerCapacityService reviewerCapacityService;
+    private final RoughDraftApprovalService roughDraftApprovalService;
+    private final ReviewerAssignmentService reviewerAssignmentService;
+
+    @Inject
+    public SplitProjectPopulator(
+        ProjectService projectService,
+        ReviewerCapacityService reviewerCapacityService,
+        RoughDraftApprovalService roughDraftApprovalService,
+        ReviewerAssignmentService reviewerAssignmentService
+    ) {
+        this.projectService = projectService;
+        this.reviewerCapacityService = reviewerCapacityService;
+        this.roughDraftApprovalService = roughDraftApprovalService;
+        this.reviewerAssignmentService = reviewerAssignmentService;
+    }
+
+    @Override
+    public void populate(BaseData baseData, Factory factory) {
+        User supervisor = factory.createSupervisor("Emil");
+
+        User author1 = factory.createAuthor("Scott");
+        User author2 = factory.createAuthor("Scarlett");
+
+        User reviewer = factory.createReviewer("Elias");
+
+        reviewerCapacityService.assignTarget(reviewer, new ReviewerCapacityService.Target(Year.now(), 3, 3, ""));
+
+        Project project = Project.builder()
+            .title("Operating System Boot Time Security")
+            .projectType(baseData.bachelor())
+            .startDate(LocalDate.now())
+            .headSupervisor(supervisor)
+            .reviewers(Set.of(reviewer))
+            .projectParticipants(Set.of(author1, author2))
+            .build();
+
+        projectService.save(project);
+
+        roughDraftApprovalService.requestApproval(project, dummyFile(), "Request review.");
+
+        reviewerAssignmentService.assignReviewer(project, reviewer);
+
+        Optional<RoughDraftApproval> optional = roughDraftApprovalService.findBy(project);
+        optional.ifPresent(rda -> rda.approve("Approve! Good Work!", Optional.empty()));
+    }
+
+    private FileUpload dummyFile() {
+        return new FileUpload() {
+            @Override
+            public String getFileName() {
+                return "dummy.tmp";
+            }
+
+            @Override
+            public String getContentType() {
+                return "text/plain";
+            }
+
+            @Override
+            public User getUploader() {
+                return null;
+            }
+
+            @Override
+            public long getSize() {
+                return 0;
+            }
+
+            @Override
+            public <T> T handleData(Function<InputStream, T> handler) {
+                return handler.apply(InputStream.nullInputStream());
+            }
+        };
+    }
+}

view/src/main/java/se/su/dsv/scipro/SciProApplication.java

@@ -294,6 +294,8 @@ public class SciProApplication extends LifecycleManagedWebApplication {
         mountPage("admin/maintenance", SystemMaintenancePage.class);
         mountPage("admin/project", ProjectManagementPage.class);
         mountPage("admin/project/create", AdminCreateProjectPage.class);
+        mountPage("admin/project/split", AdminSplitProjectPage.class);
+        mountPage("admin/project/viewparentproject", AdminViewParentProjectPage.class);
         mountPage("admin/project/survey", AdminSurveyPage.class);
         mountPage("admin/project/reviewer", AdminAssignReviewerPage.class);
         mountPage("admin/project/reviewer/capacity", AdminReviewerCapacityManagementPage.class);

view/src/main/java/se/su/dsv/scipro/admin/pages/AdminEditProjectPage.html

@@ -49,6 +49,9 @@
             </form>
         </div>
     </div>
+
+    <wicket:container wicket:id="splitPanel"/>
+
 </wicket:extend>
 </body>
 </html>

view/src/main/java/se/su/dsv/scipro/admin/pages/AdminEditProjectPage.java

@@ -3,14 +3,28 @@ package se.su.dsv.scipro.admin.pages;
 import com.google.common.eventbus.EventBus;
 import jakarta.inject.Inject;
 import java.time.LocalDate;
-import java.util.*;
+import java.util.Collection;
+import java.util.EnumSet;
+import java.util.List;
+import java.util.TreeSet;
 import org.apache.wicket.RestartResponseException;
-import org.apache.wicket.markup.html.form.*;
+import org.apache.wicket.markup.html.form.DropDownChoice;
+import org.apache.wicket.markup.html.form.Form;
+import org.apache.wicket.markup.html.form.FormComponent;
+import org.apache.wicket.markup.html.form.LambdaChoiceRenderer;
+import org.apache.wicket.markup.html.form.RequiredTextField;
+import org.apache.wicket.markup.html.form.TextField;
 import org.apache.wicket.markup.html.panel.FeedbackPanel;
 import org.apache.wicket.model.IModel;
 import org.apache.wicket.model.LambdaModel;
 import org.apache.wicket.request.mapper.parameter.PageParameters;
-import se.su.dsv.scipro.components.*;
+import se.su.dsv.scipro.components.AutoCompleteRoleProvider;
+import se.su.dsv.scipro.components.BootstrapDatePicker;
+import se.su.dsv.scipro.components.DatesValidator;
+import se.su.dsv.scipro.components.DefaultSelect2MultiChoice;
+import se.su.dsv.scipro.components.ResearchAreaChoiceRenderer;
+import se.su.dsv.scipro.components.ResearchAreasModel;
+import se.su.dsv.scipro.components.SupervisorAutoComplete;
 import se.su.dsv.scipro.components.menuhighlighting.MenuHighlightAdminProjectManagement;
 import se.su.dsv.scipro.data.DetachableServiceModel;
 import se.su.dsv.scipro.data.DetachableServiceModelCollection;
@@ -26,7 +40,13 @@ import se.su.dsv.scipro.project.ProjectService;
 import se.su.dsv.scipro.project.ReviewerAssignedEvent;
 import se.su.dsv.scipro.security.auth.Authorization;
 import se.su.dsv.scipro.security.auth.roles.Roles;
-import se.su.dsv.scipro.system.*;
+import se.su.dsv.scipro.system.ProjectType;
+import se.su.dsv.scipro.system.ProjectTypeService;
+import se.su.dsv.scipro.system.ResearchArea;
+import se.su.dsv.scipro.system.ResearchAreaService;
+import se.su.dsv.scipro.system.User;
+import se.su.dsv.scipro.system.UserSearchService;
+import se.su.dsv.scipro.system.UserService;
 import se.su.dsv.scipro.util.PageParameterKeys;
 
 @Authorization(authorizedRoles = { Roles.SYSADMIN })
@@ -74,7 +94,10 @@ public class AdminEditProjectPage extends AbstractAdminProjectPage implements Me
         if (project == null) {
             throw new RestartResponseException(AdminCreateProjectPage.class);
         }
-        add(new ProjectForm(FORM, new DetachableServiceModel<>(projectService, project)));
+        DetachableServiceModel<Project> dsModel = new DetachableServiceModel<>(projectService, project);
+
+        add(new ProjectForm(FORM, dsModel));
+        add(new AdminSplitProjectPanel("splitPanel", dsModel));
     }
 
     private class ProjectForm extends Form<Project> {

view/src/main/java/se/su/dsv/scipro/admin/pages/AdminSplitProjectPage.html

@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html xmlns="http://www.w3.org/1999/xhtml" xmlns:wicket="http://wicket.apache.org" lang="en">
+<body>
+<wicket:extend>
+    <div class="row">
+        <div class="col-lg-5">
+            <h4 wicket:id="projectTitle"></h4>
+
+            <form class="form-horizontal" wicket:id="splitProjectForm">
+                <p>This project will be split between following authors:</p>
+
+                <div class="mb-3">
+                    <ul wicket:id="authorList">
+                        <li wicket:id="author"></li>
+                    </ul>
+                </div>
+
+                <button class="btn btn-success" type="submit">Split Project</button>
+                &nbsp;&nbsp;
+                <a wicket:id="cancelLink">Cancel</a>
+            </form>
+        </div>
+    </div>
+
+</wicket:extend>
+</body>
+</html>

view/src/main/java/se/su/dsv/scipro/admin/pages/AdminSplitProjectPage.java

@@ -0,0 +1,73 @@
+package se.su.dsv.scipro.admin.pages;
+
+import jakarta.inject.Inject;
+import java.util.ArrayList;
+import org.apache.wicket.RestartResponseException;
+import org.apache.wicket.markup.html.basic.Label;
+import org.apache.wicket.markup.html.form.Form;
+import org.apache.wicket.markup.html.link.BookmarkablePageLink;
+import org.apache.wicket.markup.html.list.ListItem;
+import org.apache.wicket.markup.html.list.ListView;
+import org.apache.wicket.model.IModel;
+import org.apache.wicket.request.mapper.parameter.PageParameters;
+import se.su.dsv.scipro.components.menuhighlighting.MenuHighlightAdminProjectManagement;
+import se.su.dsv.scipro.data.DetachableServiceModel;
+import se.su.dsv.scipro.project.Project;
+import se.su.dsv.scipro.project.ProjectService;
+import se.su.dsv.scipro.project.split.SplitOrRestartProjectService;
+import se.su.dsv.scipro.security.auth.Authorization;
+import se.su.dsv.scipro.security.auth.roles.Roles;
+import se.su.dsv.scipro.system.User;
+import se.su.dsv.scipro.util.PageParameterKeys;
+
+@Authorization(authorizedRoles = { Roles.SYSADMIN })
+public class AdminSplitProjectPage extends AbstractAdminProjectPage implements MenuHighlightAdminProjectManagement {
+
+    @Inject
+    private ProjectService projectService;
+
+    @Inject
+    private SplitOrRestartProjectService splitOrRestartProjectService;
+
+    public AdminSplitProjectPage(PageParameters pp) {
+        final long id = pp.get(PageParameterKeys.MAP.get(Project.class)).toLong(0);
+        final Project project = projectService.findOne(id);
+        if (project == null) {
+            throw new RestartResponseException(AdminCreateProjectPage.class);
+        }
+        DetachableServiceModel<Project> dsModel = new DetachableServiceModel<>(projectService, project);
+
+        add(new Label("projectTitle", dsModel.map(Project::getTitle)));
+
+        add(new SplitProjectForm("splitProjectForm", dsModel));
+    }
+
+    private class SplitProjectForm extends Form<Project> {
+
+        public SplitProjectForm(String id, final IModel<Project> model) {
+            super(id, model);
+            add(
+                new ListView<>("authorList", model.map(Project::getProjectParticipants).map(ArrayList::new)) {
+                    @Override
+                    protected void populateItem(ListItem<User> item) {
+                        item.add(new Label("author", item.getModel().map(User::getFullName)));
+                    }
+                }
+            );
+
+            add(new BookmarkablePageLink<Void>("cancelLink", ProjectManagementPage.class));
+        }
+
+        @Override
+        protected void onSubmit() {
+            Long projectId = getModel().getObject().getId();
+
+            splitOrRestartProjectService.splitProject(projectId);
+
+            final PageParameters pp = new PageParameters();
+            pp.set(PageParameterKeys.MAP.get(Project.class), projectId);
+
+            setResponsePage(AdminViewParentProjectPage.class, pp);
+        }
+    }
+}

view/src/main/java/se/su/dsv/scipro/admin/pages/AdminSplitProjectPanel.html

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<html xmlns="http://www.w3.org/1999/xhtml" xmlns:wicket="http://wicket.apache.org">
+<body>
+<wicket:panel>
+    <div class="row mt-5">
+        <div class="col-md-12 col-lg-8 col-xl-5">
+            <p>
+                <a class="btn" wicket:id="splitProjectLink"><wicket:message key="splitButton" /></a>
+            </p>
+            <p wicket:id="splitInfo"></p>
+        </div>
+    </div>
+</wicket:panel>
+</body>
+</html>

view/src/main/java/se/su/dsv/scipro/admin/pages/AdminSplitProjectPanel.java

@@ -0,0 +1,78 @@
+package se.su.dsv.scipro.admin.pages;
+
+import static se.su.dsv.scipro.project.split.SplitOrRestartProjectService.SplittableStatus;
+
+import jakarta.inject.Inject;
+import org.apache.wicket.behavior.AttributeAppender;
+import org.apache.wicket.markup.html.basic.Label;
+import org.apache.wicket.markup.html.link.AbstractLink;
+import org.apache.wicket.markup.html.link.BookmarkablePageLink;
+import org.apache.wicket.markup.html.panel.Panel;
+import org.apache.wicket.model.IModel;
+import org.apache.wicket.model.LoadableDetachableModel;
+import org.apache.wicket.model.Model;
+import org.apache.wicket.request.mapper.parameter.PageParameters;
+import se.su.dsv.scipro.project.Project;
+import se.su.dsv.scipro.project.split.SplitOrRestartProjectService;
+import se.su.dsv.scipro.security.auth.roles.Roles;
+import se.su.dsv.scipro.session.SciProSession;
+import se.su.dsv.scipro.util.PageParameterKeys;
+
+public class AdminSplitProjectPanel extends Panel {
+
+    @Inject
+    private SplitOrRestartProjectService splitOrRestartProjectService;
+
+    public AdminSplitProjectPanel(String id, final IModel<Project> projectModel) {
+        super(id, projectModel);
+        Project project = projectModel.getObject();
+
+        LoadableDetachableModel<SplittableStatus> ldModel = LoadableDetachableModel.of(() -> {
+            SplitOrRestartProjectService.SplittableStatusRecord status =
+                splitOrRestartProjectService.getSplittableStatus(project.getId());
+            return status.splittableStatus();
+        });
+
+        final PageParameters pp = new PageParameters();
+        pp.set(PageParameterKeys.MAP.get(Project.class), project.getId());
+
+        AbstractLink splitProjectLink = new BookmarkablePageLink<Void>(
+            "splitProjectLink",
+            AdminSplitProjectPage.class,
+            pp
+        ) {
+            @Override
+            protected void onConfigure() {
+                super.onConfigure();
+
+                if (ldModel.getObject() == SplittableStatus.OK) {
+                    setEnabled(true);
+                    this.add(new AttributeAppender("class", Model.of(" btn-success")));
+                } else {
+                    setEnabled(false);
+                    this.add(new AttributeAppender("class", Model.of(" btn-secondary disabled")));
+                }
+            }
+        };
+        add(splitProjectLink);
+
+        add(new Label("splitInfo", Model.of(getStatusMessage(ldModel.getObject()))));
+    }
+
+    @Override
+    protected void onConfigure() {
+        super.onConfigure();
+        setVisibilityAllowed(SciProSession.get().authorizedForRole(Roles.ADMIN));
+    }
+
+    private String getStatusMessage(SplittableStatus status) {
+        return switch (status) {
+            case OK -> "";
+            case NOT_EXIST -> getString("status_not_exist");
+            case NOT_ACTIVE -> getString("status_not_active");
+            case NOT_TWO_PARTICIPANTS -> getString("status_not_two_participants");
+            case PHASE_TWO_STARTED -> getString("status_phase_two_started");
+            case FINAL_SEMINAR_PHASE_STARTED -> getString("status_final_seminar_phase_started");
+        };
+    }
+}

view/src/main/java/se/su/dsv/scipro/admin/pages/AdminSplitProjectPanel.utf8.properties

@@ -0,0 +1,6 @@
+splitButton = Split Project
+status_not_exit = Project does not exist.
+status_not_active = Only active project can be split.
+status_not_two_participants = To be able to split a project, it needs to have 2 participants.
+status_phase_two_started = Phase 2 (Review) is already started, can't split right now.
+status_final_seminar_phase_started = Final seminar phase has been started, too late to split.

view/src/main/java/se/su/dsv/scipro/admin/pages/AdminViewParentProjectPage.html

@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html xmlns="http://www.w3.org/1999/xhtml" xmlns:wicket="http://wicket.apache.org" lang="en">
+<body>
+<wicket:extend>
+    <div class="row">
+        <div class="col-lg-5">
+            <h4 wicket:id="projectTitle"></h4>
+
+            <p>The project has following children projects:</p>
+
+            <div class="mb-3">
+                <ul wicket:id="projectList">
+                    <li><a wicket:id="editLink"></a></li>
+                </ul>
+            </div>
+
+            <div class="mt-5">
+                <a class="btn btn-success" wicket:id="link">Projects</a>
+            </div>
+        </div>
+    </div>
+
+</wicket:extend>
+</body>
+</html>

view/src/main/java/se/su/dsv/scipro/admin/pages/AdminViewParentProjectPage.java

@@ -0,0 +1,68 @@
+package se.su.dsv.scipro.admin.pages;
+
+import jakarta.inject.Inject;
+import java.util.List;
+import org.apache.wicket.RestartResponseException;
+import org.apache.wicket.markup.html.basic.Label;
+import org.apache.wicket.markup.html.link.BookmarkablePageLink;
+import org.apache.wicket.markup.html.list.ListItem;
+import org.apache.wicket.markup.html.list.ListView;
+import org.apache.wicket.model.LoadableDetachableModel;
+import org.apache.wicket.model.Model;
+import org.apache.wicket.request.mapper.parameter.PageParameters;
+import se.su.dsv.scipro.components.menuhighlighting.MenuHighlightAdminProjectManagement;
+import se.su.dsv.scipro.project.Project;
+import se.su.dsv.scipro.project.ProjectService;
+import se.su.dsv.scipro.project.split.SplitOrRestartProjectService;
+import se.su.dsv.scipro.security.auth.Authorization;
+import se.su.dsv.scipro.security.auth.roles.Roles;
+import se.su.dsv.scipro.util.PageParameterKeys;
+
+@Authorization(authorizedRoles = { Roles.SYSADMIN })
+public class AdminViewParentProjectPage
+    extends AbstractAdminProjectPage
+    implements MenuHighlightAdminProjectManagement {
+
+    @Inject
+    private ProjectService projectService;
+
+    @Inject
+    private SplitOrRestartProjectService splitOrRestartProjectService;
+
+    public AdminViewParentProjectPage(PageParameters pp) {
+        final long id = pp.get(PageParameterKeys.MAP.get(Project.class)).toLong(0);
+        final Project project = projectService.findOne(id);
+        if (project == null) {
+            throw new RestartResponseException(AdminCreateProjectPage.class);
+        }
+
+        add(new Label("projectTitle", Model.of(project.getTitle())));
+
+        LoadableDetachableModel<List<Project>> ldModel = LoadableDetachableModel.of(() ->
+            splitOrRestartProjectService.getChildProjects(id)
+        );
+
+        add(
+            new ListView<>("projectList", ldModel) {
+                @Override
+                protected void populateItem(ListItem<Project> item) {
+                    Project project = item.getModelObject();
+
+                    final PageParameters pp = new PageParameters();
+                    pp.set(PageParameterKeys.MAP.get(Project.class), project.getId());
+
+                    BookmarkablePageLink<Void> link = new BookmarkablePageLink<Void>(
+                        "editLink",
+                        AdminEditProjectPage.class,
+                        pp
+                    );
+                    link.setBody(Model.of(project.getTitle() + " - " + project.getAuthorNames()));
+
+                    item.add(link);
+                }
+            }
+        );
+
+        add(new BookmarkablePageLink<Void>("link", ProjectManagementPage.class));
+    }
+}

view/src/test/java/se/su/dsv/scipro/SciProTest.java

@@ -97,6 +97,7 @@ import se.su.dsv.scipro.project.ProjectNoteService;
 import se.su.dsv.scipro.project.ProjectPeopleStatisticsService;
 import se.su.dsv.scipro.project.ProjectService;
 import se.su.dsv.scipro.project.pages.ProjectStartPage;
+import se.su.dsv.scipro.project.split.SplitOrRestartProjectService;
 import se.su.dsv.scipro.projectpartner.ProjectPartnerService;
 import se.su.dsv.scipro.reflection.ReflectionService;
 import se.su.dsv.scipro.report.GradeCalculatorService;
@@ -252,6 +253,9 @@ public abstract class SciProTest {
     @Mock
     protected ProjectService projectService;
 
+    @Mock
+    protected SplitOrRestartProjectService splitOrRestartProjectService;
+
     @Mock
     protected ResearchAreaService researchAreaService;
 

view/src/test/java/se/su/dsv/scipro/admin/pages/AdminEditProjectPageTest.java

@@ -20,11 +20,13 @@ import se.su.dsv.scipro.mail.MailEvent;
 import se.su.dsv.scipro.notifications.dataobject.NotificationSource;
 import se.su.dsv.scipro.notifications.dataobject.ProjectEvent;
 import se.su.dsv.scipro.project.Project;
+import se.su.dsv.scipro.project.split.SplitOrRestartProjectService;
 import se.su.dsv.scipro.security.auth.roles.Roles;
 import se.su.dsv.scipro.system.DegreeType;
 import se.su.dsv.scipro.system.ProjectType;
 import se.su.dsv.scipro.system.User;
 import se.su.dsv.scipro.util.PageParameterKeys;
+import se.su.dsv.scipro.util.Pair;
 
 public class AdminEditProjectPageTest extends SciProTest {
 
@@ -269,6 +271,16 @@ public class AdminEditProjectPageTest extends SciProTest {
 
     private void startPage(Project project) {
         if (project.getId() != null) when(projectService.findOne(project.getId())).thenReturn(project);
+        lenient()
+            .when(splitOrRestartProjectService.getSplittableStatus(project.getId() != null ? project.getId() : 0L))
+            .thenReturn(
+                new SplitOrRestartProjectService.SplittableStatusRecord(
+                    SplitOrRestartProjectService.SplittableStatus.OK,
+                    project,
+                    null
+                )
+            );
+
         PageParameters pp = new PageParameters();
         pp.set(PageParameterKeys.MAP.get(Project.class), project.getId());
         tester.startPage(AdminEditProjectPage.class, pp);