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

@@ -31,6 +31,7 @@ import se.su.dsv.scipro.finalseminar.AuthorRepository;
 import se.su.dsv.scipro.finalseminar.FinalSeminarActiveParticipationRepository;
 import se.su.dsv.scipro.finalseminar.FinalSeminarActiveParticipationServiceImpl;
 import se.su.dsv.scipro.finalseminar.FinalSeminarCreationSubscribers;
+import se.su.dsv.scipro.finalseminar.FinalSeminarOppositionGrading;
 import se.su.dsv.scipro.finalseminar.FinalSeminarOppositionRepo;
 import se.su.dsv.scipro.finalseminar.FinalSeminarOppositionServiceImpl;
 import se.su.dsv.scipro.finalseminar.FinalSeminarRepository;
@@ -153,6 +154,7 @@ import se.su.dsv.scipro.report.GradingReportServiceImpl;
 import se.su.dsv.scipro.report.GradingReportTemplateRepo;
 import se.su.dsv.scipro.report.GradingReportTemplateRepoImpl;
 import se.su.dsv.scipro.report.OppositionReportRepo;
+import se.su.dsv.scipro.report.OppositionReportService;
 import se.su.dsv.scipro.report.OppositionReportServiceImpl;
 import se.su.dsv.scipro.report.ReportServiceImpl;
 import se.su.dsv.scipro.report.SupervisorGradingReportRepository;
@@ -430,8 +432,26 @@ public class CoreConfig {
     }
 
     @Bean
-    public FinalSeminarOppositionServiceImpl finalSeminarOppositionService(Provider<EntityManager> em) {
-        return new FinalSeminarOppositionServiceImpl(em);
+    public FinalSeminarOppositionServiceImpl finalSeminarOppositionService(
+        Provider<EntityManager> em,
+        FinalSeminarOppositionGrading finalSeminarOppositionGrading,
+        EventBus eventBus,
+        FinalSeminarOppositionRepo finalSeminarOppositionRepository,
+        Clock clock,
+        FinalSeminarSettingsService finalSeminarSettingsService,
+        DaysService daysService,
+        OppositionReportService oppositionReportService
+    ) {
+        return new FinalSeminarOppositionServiceImpl(
+            em,
+            finalSeminarOppositionGrading,
+            eventBus,
+            finalSeminarOppositionRepository,
+            clock,
+            finalSeminarSettingsService,
+            daysService,
+            oppositionReportService
+        );
     }
 
     @Bean

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

@@ -4,11 +4,20 @@ import jakarta.inject.Inject;
 import jakarta.inject.Provider;
 import jakarta.persistence.EntityManager;
 import jakarta.transaction.Transactional;
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
 import java.time.LocalDate;
 import java.time.LocalTime;
 import java.time.Month;
+import java.time.ZonedDateTime;
 import java.util.*;
+import java.util.function.Function;
 import se.su.dsv.scipro.checklist.ChecklistCategory;
+import se.su.dsv.scipro.file.FileReference;
+import se.su.dsv.scipro.file.FileService;
+import se.su.dsv.scipro.file.FileUpload;
+import se.su.dsv.scipro.finalseminar.FinalSeminar;
+import se.su.dsv.scipro.finalseminar.FinalSeminarOpposition;
 import se.su.dsv.scipro.match.ApplicationPeriod;
 import se.su.dsv.scipro.match.Keyword;
 import se.su.dsv.scipro.milestones.dataobjects.MilestoneActivityTemplate;
@@ -39,6 +48,9 @@ public class DataInitializer implements Lifecycle {
     @Inject
     private MilestoneActivityTemplateService milestoneActivityTemplateService;
 
+    @Inject
+    private FileService fileService;
+
     @Inject
     private CurrentProfile profile;
 
@@ -75,6 +87,8 @@ public class DataInitializer implements Lifecycle {
     private ResearchArea researchArea2;
     private ProjectType masterClass;
     private ProjectType magisterClass;
+    private Project project1;
+    private Project project2;
 
     @Transactional
     @Override
@@ -89,12 +103,35 @@ public class DataInitializer implements Lifecycle {
             createMilestonesIfNotDone();
             createUsers();
             createProjects();
+            createPastFinalSeminar();
         }
         if (profile.getCurrentProfile() == Profiles.DEV && noAdminUser()) {
             createAdmin();
         }
     }
 
+    private void createPastFinalSeminar() {
+        FileReference document = fileService.storeFile(
+            new SimpleTextFile(sture_student, "document.txt", "Hello World")
+        );
+
+        FinalSeminar finalSeminar = new FinalSeminar();
+        finalSeminar.setStartDate(Date.from(ZonedDateTime.now().minusDays(1).toInstant()));
+        finalSeminar.setProject(project1);
+        finalSeminar.setRoom("zoom");
+        finalSeminar.setPresentationLanguage(Language.ENGLISH);
+        finalSeminar.setDocument(document);
+        finalSeminar.setDocumentUploadDate(document.getFileDescription().getDateCreated());
+
+        FinalSeminarOpposition opponent = new FinalSeminarOpposition();
+        opponent.setProject(project2);
+        opponent.setFinalSeminar(finalSeminar);
+        opponent.setUser(sid_student);
+        finalSeminar.addOpposition(opponent);
+
+        save(finalSeminar);
+    }
+
     @Override
     public void stop() {}
 
@@ -145,11 +182,11 @@ public class DataInitializer implements Lifecycle {
     }
 
     private void createProjects() {
-        createProject(PROJECT_1, eric_employee, sture_student, stina_student, eve_employee);
-        createProject(PROJECT_2, eve_employee, sid_student, simon_student, eric_employee);
+        project1 = createProject(PROJECT_1, eric_employee, sture_student, stina_student, eve_employee);
+        project2 = createProject(PROJECT_2, eve_employee, sid_student, simon_student, eric_employee);
     }
 
-    private void createProject(String title, User headSupervisor, User student1, User student2, User reviewer) {
+    private Project createProject(String title, User headSupervisor, User student1, User student2, User reviewer) {
         Project project = Project.builder()
             .title(title)
             .projectType(bachelorClass)
@@ -159,7 +196,7 @@ public class DataInitializer implements Lifecycle {
         project.addProjectParticipant(student2);
         project.addProjectParticipant(student1);
         project.addReviewer(reviewer);
-        save(project);
+        return save(project);
     }
 
     private void createUsers() {
@@ -1902,4 +1939,42 @@ public class DataInitializer implements Lifecycle {
         em.get().persist(entity);
         return entity;
     }
+
+    private static final class SimpleTextFile implements FileUpload {
+
+        private final User uploader;
+        private final String fileName;
+        private final String content;
+
+        private SimpleTextFile(User uploader, String fileName, String content) {
+            this.uploader = uploader;
+            this.fileName = fileName;
+            this.content = content;
+        }
+
+        @Override
+        public String getFileName() {
+            return fileName;
+        }
+
+        @Override
+        public String getContentType() {
+            return "text/plain";
+        }
+
+        @Override
+        public User getUploader() {
+            return uploader;
+        }
+
+        @Override
+        public long getSize() {
+            return content.length();
+        }
+
+        @Override
+        public <T> T handleData(Function<InputStream, T> handler) {
+            return handler.apply(new ByteArrayInputStream(content.getBytes()));
+        }
+    }
 }

core/src/main/java/se/su/dsv/scipro/finalseminar/AbstractOppositionEvent.java

@@ -1,5 +1,6 @@
 package se.su.dsv.scipro.finalseminar;
 
+import java.util.Objects;
 import se.su.dsv.scipro.project.Project;
 import se.su.dsv.scipro.system.User;
 
@@ -26,4 +27,17 @@ class AbstractOppositionEvent {
     public FinalSeminarOpposition getOpposition() {
         return opposition;
     }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        AbstractOppositionEvent that = (AbstractOppositionEvent) o;
+        return Objects.equals(opposition, that.opposition);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(opposition);
+    }
 }

core/src/main/java/se/su/dsv/scipro/finalseminar/FinalSeminarOpposition.java

@@ -8,6 +8,7 @@ import jakarta.persistence.JoinColumn;
 import jakarta.persistence.ManyToOne;
 import jakarta.persistence.OneToOne;
 import jakarta.persistence.Table;
+import java.time.Instant;
 import java.util.Objects;
 import se.su.dsv.scipro.file.FileReference;
 import se.su.dsv.scipro.project.Project;
@@ -31,6 +32,14 @@ public class FinalSeminarOpposition extends FinalSeminarParticipation {
     @Column(name = "feedback", length = FEEDBACK_LENGTH)
     private String feedback;
 
+    @Basic
+    @Column(name = "improvements_requested_at")
+    private Instant improvementsRequestedAt;
+
+    @Basic
+    @Column(name = "supervisor_improvements_comment")
+    private String supervisorCommentForImprovements;
+
     // ----------------------------------------------------------------------------------
     // JPA-mappings of foreign keys in this table (final_seminar_opposition) referencing
     // other tables.
@@ -92,6 +101,22 @@ public class FinalSeminarOpposition extends FinalSeminarParticipation {
         this.oppositionReport = oppositionReport;
     }
 
+    public Instant getImprovementsRequestedAt() {
+        return improvementsRequestedAt;
+    }
+
+    public void setImprovementsRequestedAt(Instant improvementsRequestedAt) {
+        this.improvementsRequestedAt = improvementsRequestedAt;
+    }
+
+    public String getSupervisorCommentForImprovements() {
+        return supervisorCommentForImprovements;
+    }
+
+    public void setSupervisorCommentForImprovements(String supervisorCommentsForImprovements) {
+        this.supervisorCommentForImprovements = supervisorCommentsForImprovements;
+    }
+
     // ----------------------------------------------------------------------------------
     // Methods Common To All Objects
     // ----------------------------------------------------------------------------------

core/src/main/java/se/su/dsv/scipro/finalseminar/FinalSeminarOppositionGrading.java

@@ -0,0 +1,7 @@
+package se.su.dsv.scipro.finalseminar;
+
+import java.util.List;
+
+public interface FinalSeminarOppositionGrading {
+    OppositionCriteria oppositionCriteria(FinalSeminarOpposition opposition);
+}

core/src/main/java/se/su/dsv/scipro/finalseminar/FinalSeminarOppositionService.java

@@ -1,8 +1,18 @@
 package se.su.dsv.scipro.finalseminar;
 
+import java.time.Instant;
 import se.su.dsv.scipro.system.GenericService;
 
-public interface FinalSeminarOppositionService extends GenericService<FinalSeminarOpposition, Long> {
-    @Override
-    void delete(Long aLong);
+public interface FinalSeminarOppositionService {
+    OppositionCriteria getCriteriaForOpposition(FinalSeminarOpposition opposition);
+
+    FinalSeminarOpposition gradeOpponent(FinalSeminarOpposition opposition, int points, String feedback)
+        throws PointNotValidException;
+
+    /**
+     * @return the deadline by which the improvements must have been submitted
+     */
+    Instant requestImprovements(FinalSeminarOpposition opposition, String supervisorComment);
+
+    Opposition getOpposition(long id);
 }

core/src/main/java/se/su/dsv/scipro/finalseminar/FinalSeminarOppositionServiceImpl.java

@@ -1,16 +1,131 @@
 package se.su.dsv.scipro.finalseminar;
 
+import com.google.common.eventbus.EventBus;
 import jakarta.inject.Inject;
 import jakarta.inject.Provider;
 import jakarta.persistence.EntityManager;
+import jakarta.transaction.Transactional;
+import java.time.Clock;
+import java.time.Instant;
+import java.util.List;
+import java.util.Optional;
+import se.su.dsv.scipro.misc.DaysService;
+import se.su.dsv.scipro.report.OppositionReport;
+import se.su.dsv.scipro.report.OppositionReportService;
 import se.su.dsv.scipro.system.AbstractServiceImpl;
 
 public class FinalSeminarOppositionServiceImpl
     extends AbstractServiceImpl<FinalSeminarOpposition, Long>
     implements FinalSeminarOppositionService {
 
+    private final FinalSeminarOppositionGrading finalSeminarOppositionGrading;
+    private final EventBus eventBus;
+    private final FinalSeminarOppositionRepo finalSeminarOppositionRepository;
+    private final Clock clock;
+    private final FinalSeminarSettingsService finalSeminarSettingsService;
+    private final DaysService daysService;
+    private final OppositionReportService oppositionReportService;
+
     @Inject
-    public FinalSeminarOppositionServiceImpl(Provider<EntityManager> em) {
+    public FinalSeminarOppositionServiceImpl(
+        Provider<EntityManager> em,
+        FinalSeminarOppositionGrading finalSeminarOppositionGrading,
+        EventBus eventBus,
+        FinalSeminarOppositionRepo finalSeminarOppositionRepository,
+        Clock clock,
+        FinalSeminarSettingsService finalSeminarSettingsService,
+        DaysService daysService,
+        OppositionReportService oppositionReportService
+    ) {
         super(em, FinalSeminarOpposition.class, QFinalSeminarOpposition.finalSeminarOpposition);
+        this.finalSeminarOppositionGrading = finalSeminarOppositionGrading;
+        this.eventBus = eventBus;
+        this.finalSeminarOppositionRepository = finalSeminarOppositionRepository;
+        this.clock = clock;
+        this.finalSeminarSettingsService = finalSeminarSettingsService;
+        this.daysService = daysService;
+        this.oppositionReportService = oppositionReportService;
+    }
+
+    @Override
+    public OppositionCriteria getCriteriaForOpposition(FinalSeminarOpposition opposition) {
+        return finalSeminarOppositionGrading.oppositionCriteria(opposition);
+    }
+
+    @Override
+    @Transactional
+    public FinalSeminarOpposition gradeOpponent(FinalSeminarOpposition opposition, int points, String feedback)
+        throws PointNotValidException {
+        OppositionCriteria criteriaForOpposition = getCriteriaForOpposition(opposition);
+        boolean validPoints = criteriaForOpposition
+            .pointsAvailable()
+            .stream()
+            .anyMatch(criterion -> criterion.value() == points);
+        if (!validPoints) {
+            throw new PointNotValidException(points, List.of(0, 1));
+        }
+
+        opposition.setPoints(points);
+        opposition.setFeedback(feedback);
+        FinalSeminarOpposition assessedOpposition = finalSeminarOppositionRepository.save(opposition);
+
+        if (criteriaForOpposition.pointsToPass() > points) {
+            eventBus.post(new OppositionFailedEvent(assessedOpposition));
+        } else {
+            eventBus.post(new OppositionApprovedEvent(assessedOpposition));
+        }
+
+        return assessedOpposition;
+    }
+
+    @Override
+    @Transactional
+    public Instant requestImprovements(FinalSeminarOpposition opposition, String supervisorComment) {
+        OppositionReport oppositionReport = opposition.getOppositionReport();
+        if (oppositionReport == null) {
+            throw new IllegalStateException("There is no opposition report submitted");
+        }
+
+        FinalSeminarSettings finalSeminarSettings = finalSeminarSettingsService.getInstance();
+
+        Instant now = clock.instant();
+        Instant deadline = daysService.workDaysAfter(
+            now,
+            finalSeminarSettings.getWorkDaysToFixRequestedImprovementsToOppositionReport()
+        );
+
+        oppositionReport.setSubmitted(false);
+        opposition.setImprovementsRequestedAt(now);
+        opposition.setSupervisorCommentForImprovements(supervisorComment);
+
+        eventBus.post(new OppositionReportImprovementsRequestedEvent(opposition, supervisorComment, deadline));
+
+        return deadline;
+    }
+
+    @Override
+    public Opposition getOpposition(long id) {
+        FinalSeminarOpposition finalSeminarOpposition = finalSeminarOppositionRepository.findOne(id);
+        if (finalSeminarOpposition == null) {
+            return null;
+        }
+        OppositionReport report = oppositionReportService.findOrCreateReport(finalSeminarOpposition);
+        Optional<Opposition.ImprovementsNeeded> improvements = getImprovementsNeeded(finalSeminarOpposition);
+        return new Opposition(finalSeminarOpposition.getUser(), report, improvements);
+    }
+
+    private Optional<Opposition.ImprovementsNeeded> getImprovementsNeeded(
+        FinalSeminarOpposition finalSeminarOpposition
+    ) {
+        if (finalSeminarOpposition.getSupervisorCommentForImprovements() != null) {
+            return Optional.of(
+                new Opposition.ImprovementsNeeded(
+                    finalSeminarOpposition.getSupervisorCommentForImprovements(),
+                    finalSeminarOpposition.getImprovementsRequestedAt()
+                )
+            );
+        } else {
+            return Optional.empty();
+        }
     }
 }

core/src/main/java/se/su/dsv/scipro/finalseminar/FinalSeminarSettings.java

@@ -34,6 +34,9 @@ public class FinalSeminarSettings extends DomainObject {
     @Column(name = "days_ahead_to_upload_thesis", nullable = false)
     private int daysAheadToUploadThesis = DEFAULT_DAYS_AHEAD_TO_UPLOAD_THESIS;
 
+    @Column(name = "work_days_to_fix_requested_improvements_to_opposition_report", nullable = false)
+    private int workDaysToFixRequestedImprovementsToOppositionReport = 10;
+
     @Column(name = "thesis_must_be_pdf", nullable = false)
     private boolean thesisMustBePDF = false;
 
@@ -113,6 +116,17 @@ public class FinalSeminarSettings extends DomainObject {
         this.oppositionPriorityDays = oppositionPriorityDays;
     }
 
+    public int getWorkDaysToFixRequestedImprovementsToOppositionReport() {
+        return workDaysToFixRequestedImprovementsToOppositionReport;
+    }
+
+    public void setWorkDaysToFixRequestedImprovementsToOppositionReport(
+        int workDaysToFixRequestedImprovementsToOppositionReport
+    ) {
+        this.workDaysToFixRequestedImprovementsToOppositionReport =
+            workDaysToFixRequestedImprovementsToOppositionReport;
+    }
+
     @Override
     public String toString() {
         return (

core/src/main/java/se/su/dsv/scipro/finalseminar/Opposition.java

@@ -0,0 +1,10 @@
+package se.su.dsv.scipro.finalseminar;
+
+import java.time.Instant;
+import java.util.Optional;
+import se.su.dsv.scipro.report.OppositionReport;
+import se.su.dsv.scipro.system.User;
+
+public record Opposition(User user, OppositionReport report, Optional<ImprovementsNeeded> improvementsNeeded) {
+    record ImprovementsNeeded(String comment, Instant deadline) {}
+}

core/src/main/java/se/su/dsv/scipro/finalseminar/OppositionCriteria.java

@@ -0,0 +1,7 @@
+package se.su.dsv.scipro.finalseminar;
+
+import java.util.List;
+
+public record OppositionCriteria(int pointsToPass, List<Point> pointsAvailable) {
+    public record Point(int value, String requirement) {}
+}

core/src/main/java/se/su/dsv/scipro/finalseminar/OppositionReportImprovementsRequestedEvent.java

@@ -0,0 +1,9 @@
+package se.su.dsv.scipro.finalseminar;
+
+import java.time.Instant;
+
+public record OppositionReportImprovementsRequestedEvent(
+    FinalSeminarOpposition opposition,
+    String supervisorComment,
+    Instant deadline
+) {}

core/src/main/java/se/su/dsv/scipro/finalseminar/PointNotValidException.java

@@ -0,0 +1,27 @@
+package se.su.dsv.scipro.finalseminar;
+
+import java.util.List;
+
+public class PointNotValidException extends Exception {
+
+    private final int givenValue;
+    private final List<Integer> acceptableValues;
+
+    public PointNotValidException(int givenValue, List<Integer> acceptableValues) {
+        this.givenValue = givenValue;
+        this.acceptableValues = acceptableValues;
+    }
+
+    public int givenValue() {
+        return givenValue;
+    }
+
+    public List<Integer> acceptableValues() {
+        return acceptableValues;
+    }
+
+    @Override
+    public String toString() {
+        return "PointNotValidException{" + "givenValue=" + givenValue + ", acceptableValues=" + acceptableValues + '}';
+    }
+}

core/src/main/java/se/su/dsv/scipro/misc/DaysService.java

@@ -1,6 +1,9 @@
 package se.su.dsv.scipro.misc;
 
+import java.time.Instant;
 import java.time.LocalDate;
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
 import java.util.Date;
 
 public interface DaysService {
@@ -9,4 +12,11 @@ public interface DaysService {
     int workDaysBetween(Date startDate, Date endDate);
     LocalDate workDaysAhead(LocalDate date, int days);
     LocalDate workDaysAfter(LocalDate date, int days);
+
+    default Instant workDaysAfter(Instant instant, int days) {
+        ZonedDateTime zonedDateTime = instant.atZone(ZoneId.systemDefault());
+        LocalDate localDate = zonedDateTime.toLocalDate();
+        LocalDate newDate = workDaysAfter(localDate, days);
+        return newDate.atTime(zonedDateTime.toLocalTime()).atZone(ZoneId.systemDefault()).toInstant();
+    }
 }

core/src/main/java/se/su/dsv/scipro/notifications/Notifications.java

@@ -12,6 +12,7 @@ import se.su.dsv.scipro.finalseminar.FinalSeminarDeletedEvent;
 import se.su.dsv.scipro.finalseminar.FinalSeminarThesisDeletedEvent;
 import se.su.dsv.scipro.finalseminar.FinalSeminarThesisUploadedEvent;
 import se.su.dsv.scipro.finalseminar.OppositionFailedEvent;
+import se.su.dsv.scipro.finalseminar.OppositionReportImprovementsRequestedEvent;
 import se.su.dsv.scipro.finalseminar.ParticipationFailedEvent;
 import se.su.dsv.scipro.notifications.dataobject.NotificationSource;
 import se.su.dsv.scipro.notifications.dataobject.PeerEvent;
@@ -168,6 +169,20 @@ public class Notifications {
         );
     }
 
+    @Subscribe
+    public void oppositionReportImprovementsRequested(OppositionReportImprovementsRequestedEvent event) {
+        Member recipient = new Member(event.opposition().getUser(), Member.Type.AUTHOR);
+        Set<Member> recipients = Set.of(recipient);
+        NotificationSource source = new NotificationSource();
+        source.setMessage(event.supervisorComment());
+        notificationController.notifyCustomProject(
+            event.opposition().getProject(),
+            ProjectEvent.Event.OPPOSITION_REPORT_IMPROVEMENTS_REQUESTED,
+            source,
+            recipients
+        );
+    }
+
     @Subscribe
     public void reviewersChanged(ReviewerAssignedEvent event) {
         notificationController.notifyProject(

core/src/main/java/se/su/dsv/scipro/notifications/dataobject/ProjectEvent.java

@@ -51,6 +51,7 @@ public class ProjectEvent extends NotificationEvent {
         PARTICIPATION_FAILED,
         REFLECTION_IMPROVEMENTS_REQUESTED,
         REFLECTION_IMPROVEMENTS_SUBMITTED,
+        OPPOSITION_REPORT_IMPROVEMENTS_REQUESTED,
     }
 
     @Basic

core/src/main/java/se/su/dsv/scipro/notifications/notifications.properties

@@ -79,6 +79,10 @@ PROJECT.FIRST_MEETING.body = Date: {0}\n\nDescription:\n{2}
 PROJECT.OPPOSITION_FAILED.title = Your opposition on {1} did not meet the minimum requirements.
 PROJECT.OPPOSITION_FAILED.body = Your opposition did not meet the minimum requirements set, and you will have to \
   oppose on a different final seminar to pass this step.\n\nFeedback from the seminar supervisor: {2}
+PROJECT.OPPOSITION_REPORT_IMPROVEMENTS_REQUESTED.title = Opposition report improvements requested
+PROJECT.OPPOSITION_REPORT_IMPROVEMENTS_REQUESTED.body = The supervisor has deemed that the opposition report submitted \
+  does not meet the minimum requirements and has requested improvements. Please log into SciPro and submit a new \
+  opposition report. Their comments can be seen below:\n\n{0}
 PROJECT.PARTICIPATION_APPROVED.title = Active participation on {1} has been approved.
 PROJECT.PARTICIPATION_APPROVED.body = Your active participation on {0} has been approved, but you still have to complete \
   {2} more active participation to meet the minimum requirements for your thesis project.

core/src/main/java/se/su/dsv/scipro/report/GradingReportService.java

@@ -2,7 +2,6 @@ package se.su.dsv.scipro.report;
 
 import java.time.Instant;
 import java.util.List;
-import se.su.dsv.scipro.finalseminar.FinalSeminarOpposition;
 import se.su.dsv.scipro.grading.GradingBasis;
 import se.su.dsv.scipro.project.Project;
 import se.su.dsv.scipro.system.User;
@@ -19,8 +18,6 @@ public interface GradingReportService {
         SupervisorGradingReport supervisorGradingReport
     );
 
-    boolean updateOppositionCriteria(SupervisorGradingReport report, FinalSeminarOpposition opposition);
-
     GradingBasis getGradingBasis(Project project);
 
     GradingBasis updateGradingBasis(Project project, GradingBasis gradingBasis);

core/src/main/java/se/su/dsv/scipro/report/GradingReportServiceImpl.java

@@ -1,6 +1,7 @@
 package se.su.dsv.scipro.report;
 
 import com.google.common.eventbus.EventBus;
+import com.google.common.eventbus.Subscribe;
 import jakarta.inject.Inject;
 import jakarta.transaction.Transactional;
 import java.time.Clock;
@@ -8,6 +9,9 @@ import java.time.Instant;
 import java.time.LocalDate;
 import java.util.*;
 import se.su.dsv.scipro.finalseminar.FinalSeminarOpposition;
+import se.su.dsv.scipro.finalseminar.FinalSeminarOppositionGrading;
+import se.su.dsv.scipro.finalseminar.OppositionApprovedEvent;
+import se.su.dsv.scipro.finalseminar.OppositionCriteria;
 import se.su.dsv.scipro.grading.GradingBasis;
 import se.su.dsv.scipro.grading.GradingReportTemplateService;
 import se.su.dsv.scipro.grading.GradingReportTemplateUpdate;
@@ -20,7 +24,8 @@ import se.su.dsv.scipro.system.ProjectTypeService;
 import se.su.dsv.scipro.system.User;
 import se.su.dsv.scipro.util.Either;
 
-public class GradingReportServiceImpl implements GradingReportTemplateService, GradingReportService {
+public class GradingReportServiceImpl
+    implements GradingReportTemplateService, GradingReportService, FinalSeminarOppositionGrading {
 
     private final EventBus eventBus;
     private final ThesisSubmissionHistoryService thesisSubmissionHistoryService;
@@ -44,11 +49,11 @@ public class GradingReportServiceImpl implements GradingReportTemplateService, G
         this.supervisorGradingReportRepository = supervisorGradingReportRepository;
         this.gradingReportTemplateRepo = gradingReportTemplateRepo;
         this.projectTypeService = projectTypeService;
+
+        eventBus.register(this);
     }
 
-    @Override
-    @Transactional
-    public boolean updateOppositionCriteria(SupervisorGradingReport report, FinalSeminarOpposition opposition) {
+    private boolean updateOppositionCriteria(SupervisorGradingReport report, FinalSeminarOpposition opposition) {
         for (GradingCriterion gradingCriterion : report.getIndividualCriteria()) {
             boolean isOppositionCriterion = gradingCriterion.getFlag() == GradingCriterion.Flag.OPPOSITION;
             boolean betterGrade =
@@ -289,4 +294,39 @@ public class GradingReportServiceImpl implements GradingReportTemplateService, G
 
         return gradingReportTemplateRepo.createTemplate(projectType, update);
     }
+
+    @Subscribe
+    public void opponentApproved(OppositionApprovedEvent event) {
+        SupervisorGradingReport report = getSupervisorGradingReport(event.getProject(), event.getStudent());
+        updateOppositionCriteria(report, event.getOpposition());
+    }
+
+    @Override
+    @Transactional
+    public OppositionCriteria oppositionCriteria(FinalSeminarOpposition opposition) {
+        SupervisorGradingReport supervisorGradingReport = getSupervisorGradingReport(
+            opposition.getProject(),
+            opposition.getUser()
+        );
+        Optional<GradingCriterion> oppositionGradingCriteria = supervisorGradingReport
+            .getIndividualCriteria()
+            .stream()
+            .filter(individualCriterion -> individualCriterion.getFlag() == AbstractGradingCriterion.Flag.OPPOSITION)
+            .findAny();
+        if (oppositionGradingCriteria.isEmpty()) {
+            return new OppositionCriteria(0, List.of());
+        }
+        List<OppositionCriteria.Point> points = oppositionGradingCriteria
+            .stream()
+            .map(GradingCriterion::getGradingCriterionPoints)
+            .flatMap(Collection::stream)
+            .map(gcp ->
+                new OppositionCriteria.Point(
+                    gcp.getPoint(),
+                    Objects.requireNonNullElse(gcp.getDescription(Language.ENGLISH), "")
+                )
+            )
+            .toList();
+        return new OppositionCriteria(oppositionGradingCriteria.get().getPointsRequiredToPass(), points);
+    }
 }

core/src/main/resources/db/migration/V5__final_seminar_opposition_request_improvements.sql

@@ -0,0 +1,3 @@
+ALTER TABLE `final_seminar_opposition`
+    ADD COLUMN `improvements_requested_at` DATETIME NULL,
+    ADD COLUMN `supervisor_improvements_comment` TEXT NULL;

core/src/main/resources/db/migration/V6__final_seminar_work_days_to_fix_opposition_report.sql

@@ -0,0 +1,2 @@
+ALTER TABLE `final_seminar_settings`
+    ADD COLUMN `work_days_to_fix_requested_improvements_to_opposition_report` INT(11) NOT NULL DEFAULT 10;

core/src/test/java/se/su/dsv/scipro/finalseminar/FinalSeminarOppositionServiceImplIntegrationTest.java

@@ -1,14 +1,22 @@
 package se.su.dsv.scipro.finalseminar;
 
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.contains;
+import static org.hamcrest.Matchers.hasItem;
+import static org.hamcrest.Matchers.hasSize;
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 import jakarta.inject.Inject;
 import java.time.LocalDate;
 import java.time.Month;
 import java.util.Date;
+import java.util.List;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import se.su.dsv.scipro.project.Project;
+import se.su.dsv.scipro.report.AbstractGradingCriterion;
+import se.su.dsv.scipro.report.GradingCriterionPointTemplate;
 import se.su.dsv.scipro.report.GradingReportTemplate;
 import se.su.dsv.scipro.report.OppositionReport;
 import se.su.dsv.scipro.system.DegreeType;
@@ -46,6 +54,76 @@ public class FinalSeminarOppositionServiceImplIntegrationTest extends Integratio
         assertEquals(0, finalSeminarOppositionService.count());
     }
 
+    @Test
+    public void opposition_criteria_are_taken_from_the_grading_report_template() {
+        FinalSeminarOpposition opposition = createOpposition(finalSeminar, createUser());
+        createSimpleGradingReportTemplateWithPassFail();
+
+        assertEquals(2, finalSeminarOppositionService.getCriteriaForOpposition(opposition).pointsAvailable().size());
+    }
+
+    @Test
+    public void can_not_grade_outside_criterion() {
+        FinalSeminarOpposition opposition = createOpposition(finalSeminar, createUser());
+        createSimpleGradingReportTemplateWithPassFail();
+
+        PointNotValidException exception = assertThrows(PointNotValidException.class, () ->
+            finalSeminarOppositionService.gradeOpponent(opposition, 2, "Feedback")
+        );
+        assertEquals(2, exception.givenValue());
+        assertThat(exception.acceptableValues(), hasSize(2));
+        assertThat(exception.acceptableValues(), contains(0, 1));
+    }
+
+    @Test
+    public void publishes_failed_event_when_grading_with_failing_criterion() throws Exception {
+        FinalSeminarOpposition opposition = createOpposition(finalSeminar, createUser());
+        createSimpleGradingReportTemplateWithPassFail();
+
+        finalSeminarOppositionService.gradeOpponent(opposition, 0, "Feedback");
+
+        assertThat(getPublishedEvents(), hasItem(new OppositionFailedEvent(opposition)));
+    }
+
+    @Test
+    public void publishes_approved_event_when_grading_with_passing_criterion() throws Exception {
+        FinalSeminarOpposition opposition = createOpposition(finalSeminar, createUser());
+        createSimpleGradingReportTemplateWithPassFail();
+
+        finalSeminarOppositionService.gradeOpponent(opposition, 1, "Feedback");
+
+        assertThat(getPublishedEvents(), hasItem(new OppositionApprovedEvent(opposition)));
+    }
+
+    @Test
+    public void stores_assessment() throws Exception {
+        FinalSeminarOpposition opposition = createOpposition(finalSeminar, createUser());
+        createSimpleGradingReportTemplateWithPassFail();
+
+        FinalSeminarOpposition graded = finalSeminarOppositionService.gradeOpponent(opposition, 1, "Feedback");
+
+        assertEquals(1, graded.getPoints());
+        assertEquals("Feedback", graded.getFeedback());
+    }
+
+    private void createSimpleGradingReportTemplateWithPassFail() {
+        GradingReportTemplate gradingReportTemplate = createGradingReportTemplate();
+
+        GradingCriterionPointTemplate failingCriterion = new GradingCriterionPointTemplate();
+        failingCriterion.setPoint(0);
+        GradingCriterionPointTemplate passingCriterion = new GradingCriterionPointTemplate();
+        passingCriterion.setPoint(1);
+
+        gradingReportTemplate.addIndividualCriterion(
+            "Criterion 1",
+            "Criterion 1",
+            1,
+            List.of(failingCriterion, passingCriterion),
+            AbstractGradingCriterion.Flag.OPPOSITION
+        );
+        save(gradingReportTemplate);
+    }
+
     private void createOppositionReport(FinalSeminarOpposition opposition) {
         OppositionReport report = new OppositionReport(createGradingReportTemplate(), opposition);
         opposition.setOppositionReport(report);
@@ -93,7 +171,7 @@ public class FinalSeminarOppositionServiceImplIntegrationTest extends Integratio
         FinalSeminarOpposition opposition = new FinalSeminarOpposition();
         opposition.setFinalSeminar(finalSeminar);
         opposition.setUser(student);
-        opposition.setProject(createProject(createProjectType()));
+        opposition.setProject(createProject(projectType));
         return save(opposition);
     }
 }

core/src/test/java/se/su/dsv/scipro/report/GradingReportServiceImplIntegrationTest.java

@@ -5,6 +5,7 @@ import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertNull;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
+import com.google.common.eventbus.EventBus;
 import jakarta.inject.Inject;
 import java.time.LocalDate;
 import java.time.Month;
@@ -13,6 +14,7 @@ import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import se.su.dsv.scipro.finalseminar.FinalSeminar;
 import se.su.dsv.scipro.finalseminar.FinalSeminarOpposition;
+import se.su.dsv.scipro.finalseminar.OppositionApprovedEvent;
 import se.su.dsv.scipro.project.Project;
 import se.su.dsv.scipro.security.auth.roles.Roles;
 import se.su.dsv.scipro.system.DegreeType;
@@ -31,6 +33,9 @@ public class GradingReportServiceImplIntegrationTest extends IntegrationTest {
     @Inject
     private GradingReportServiceImpl gradingReportService;
 
+    @Inject
+    private EventBus eventBus;
+
     private ProjectType projectType;
     private GradingReportTemplate gradingReportTemplate;
     private Project project;
@@ -45,7 +50,6 @@ public class GradingReportServiceImplIntegrationTest extends IntegrationTest {
         project = createProject(projectType, 30);
         gradingReportTemplate = createProjectGradingCriterion(gradingReportTemplate, 2);
         gradingReportTemplate = createIndividualGradingCriterion(gradingReportTemplate, 2);
-        gradingReport = createGradingReport(project, student);
     }
 
     @Test
@@ -68,6 +72,7 @@ public class GradingReportServiceImplIntegrationTest extends IntegrationTest {
 
     @Test
     public void submit_supervisor_grading_report_flags_report_as_submitted() {
+        gradingReport = createGradingReport(project, student);
         assessAllCriteria(gradingReport);
         Either<List<SubmissionError>, SupervisorGradingReport> result = gradingReportService.submitReport(
             gradingReport
@@ -77,6 +82,7 @@ public class GradingReportServiceImplIntegrationTest extends IntegrationTest {
 
     @Test
     public void submitting_supervisor_report_throws_exception_if_report_is_not_finished() {
+        gradingReport = createGradingReport(project, student);
         Either<List<SubmissionError>, SupervisorGradingReport> result = gradingReportService.submitReport(
             gradingReport
         );
@@ -86,38 +92,35 @@ public class GradingReportServiceImplIntegrationTest extends IntegrationTest {
     @Test
     public void update_opposition_criterion() {
         addOppositionCriterion();
-        boolean updated = updateOppositionCriterion();
+        updateOppositionCriterion();
 
         GradingCriterion oppositionCriterion = findOppositionCriterion();
         assert oppositionCriterion != null;
         assertEquals(FEEDBACK_ON_OPPOSITION, oppositionCriterion.getFeedback());
         assertEquals((Integer) OPPOSITION_CRITERION_POINTS, oppositionCriterion.getPoints());
-        assertTrue(updated);
     }
 
     @Test
     public void update_opposition_if_title_matches_english_title() {
         addOppositionCriterion();
-        boolean updated = updateOppositionCriterion();
+        updateOppositionCriterion();
 
         GradingCriterion oppositionCriterion = findEnglishOppositionCriterion("Ö1 Opposition report");
         assert oppositionCriterion != null;
         assertEquals(FEEDBACK_ON_OPPOSITION, oppositionCriterion.getFeedback());
         assertEquals((Integer) OPPOSITION_CRITERION_POINTS, oppositionCriterion.getPoints());
-        assertTrue(updated);
     }
 
     @Test
     public void updating_opposition_criterion_does_nothing_if_criterion_already_has_values() {
         addOppositionCriterion();
         assessAllCriteria(gradingReport);
-        boolean updated = updateOppositionCriterion();
+        updateOppositionCriterion();
 
         GradingCriterion oppositionCriterion = findOppositionCriterion();
         assert oppositionCriterion != null;
         assertEquals(FEEDBACK, oppositionCriterion.getFeedback());
         assertEquals((Integer) oppositionCriterion.getMaxPoints(), oppositionCriterion.getPoints());
-        assertFalse(updated);
     }
 
     @Test
@@ -151,9 +154,9 @@ public class GradingReportServiceImplIntegrationTest extends IntegrationTest {
         gradingReport = createGradingReport(project, student);
     }
 
-    private boolean updateOppositionCriterion() {
+    private void updateOppositionCriterion() {
         FinalSeminarOpposition opposition = createFinalSeminarOpposition();
-        return gradingReportService.updateOppositionCriteria(gradingReport, opposition);
+        eventBus.post(new OppositionApprovedEvent(opposition));
     }
 
     private GradingCriterion findOppositionCriterion() {
@@ -176,8 +179,8 @@ public class GradingReportServiceImplIntegrationTest extends IntegrationTest {
 
     private FinalSeminarOpposition createFinalSeminarOpposition() {
         FinalSeminarOpposition finalSeminarOpposition = new FinalSeminarOpposition();
-        finalSeminarOpposition.setProject(createProject(projectType, 30));
-        finalSeminarOpposition.setUser(createStudent());
+        finalSeminarOpposition.setProject(project);
+        finalSeminarOpposition.setUser(student);
         finalSeminarOpposition.setFinalSeminar(createFinalSeminar());
 
         finalSeminarOpposition.setFeedback(FEEDBACK_ON_OPPOSITION);

core/src/test/java/se/su/dsv/scipro/test/SpringTest.java

@@ -1,11 +1,14 @@
 package se.su.dsv.scipro.test;
 
+import com.google.common.eventbus.EventBus;
 import jakarta.persistence.EntityManager;
 import jakarta.persistence.EntityManagerFactory;
 import jakarta.persistence.EntityTransaction;
 import jakarta.persistence.Persistence;
 import java.sql.SQLException;
 import java.time.Clock;
+import java.util.ArrayList;
+import java.util.List;
 import java.util.Map;
 import java.util.Optional;
 import org.flywaydb.core.Flyway;
@@ -35,6 +38,8 @@ public abstract class SpringTest {
     @Container
     static MariaDBContainer<?> mariaDBContainer = new MariaDBContainer<>("mariadb:10.11");
 
+    private CapturingEventBus capturingEventBus;
+
     @BeforeEach
     public final void prepareSpring() throws SQLException {
         MariaDbDataSource dataSource = new MariaDbDataSource(mariaDBContainer.getJdbcUrl());
@@ -50,8 +55,11 @@ public abstract class SpringTest {
         transaction.begin();
         transaction.setRollbackOnly();
 
+        capturingEventBus = new CapturingEventBus();
+
         AnnotationConfigApplicationContext annotationConfigApplicationContext =
             new AnnotationConfigApplicationContext();
+        annotationConfigApplicationContext.registerBean("eventBus", EventBus.class, () -> this.capturingEventBus);
         annotationConfigApplicationContext.register(TestContext.class);
         annotationConfigApplicationContext.getBeanFactory().registerSingleton("entityManager", this.entityManager);
         annotationConfigApplicationContext.refresh();
@@ -75,6 +83,10 @@ public abstract class SpringTest {
         }
     }
 
+    protected List<Object> getPublishedEvents() {
+        return capturingEventBus.publishedEvents;
+    }
+
     @Configuration(proxyBeanMethods = false)
     @Import({ CoreConfig.class, RepositoryConfiguration.class })
     public static class TestContext {
@@ -106,4 +118,15 @@ public abstract class SpringTest {
             return currentProfile;
         }
     }
+
+    private static class CapturingEventBus extends EventBus {
+
+        private List<Object> publishedEvents = new ArrayList<>();
+
+        @Override
+        public void post(Object event) {
+            publishedEvents.add(event);
+            super.post(event);
+        }
+    }
 }

view/src/main/java/se/su/dsv/scipro/finalseminar/AdminFinalSeminarSettingsPage.html

@@ -42,6 +42,13 @@
             </div>
         </div>
 
+        <div class="mb-3">
+            <label class="col-lg-4">How many work days opponents have to resubmit their report</label>
+            <div class="col-lg-1">
+                <input class="form-control" type="text" wicket:id="work_days_to_fix_requested_improvements_to_opposition_report" />
+            </div>
+        </div>
+
 		<div class="mb-3">
             <div class="col-lg-offset-4 col-lg-4">
                 <div class="form-check">

view/src/main/java/se/su/dsv/scipro/finalseminar/AdminFinalSeminarSettingsPage.java

@@ -131,6 +131,17 @@ public class AdminFinalSeminarSettingsPage extends AbstractAdminSystemPage {
                     Integer.class
                 )
             );
+            add(
+                new RequiredTextField<>(
+                    "work_days_to_fix_requested_improvements_to_opposition_report",
+                    LambdaModel.of(
+                        model,
+                        FinalSeminarSettings::getWorkDaysToFixRequestedImprovementsToOppositionReport,
+                        FinalSeminarSettings::setWorkDaysToFixRequestedImprovementsToOppositionReport
+                    ),
+                    Integer.class
+                )
+            );
             add(
                 new CheckBox(
                     SEMINAR_PDF,

view/src/main/java/se/su/dsv/scipro/finalseminar/OppositionReportPage.html

@@ -9,9 +9,9 @@
             <div class="row mb-4">
                 <div class="col-lg-8">
                     <div class="help-box">
-                        Använd bedömningskriterierna i denna rapport och skriv dina synpunkter som opponent i fritextfälten
-                        under varje kriterium. Du gör dock ingen poängbedömning men
-                        är fri att skriva så mycket som du önskar på varje bedömningskriterium.
+                        Use the assessment criteria in this report and write your views as an opponent in the text
+                        fields under each criterion. However, you do not make a point assessment but are free to
+                        write as much as you wish on each criterion.
                     </div>
                 </div>
             </div>
@@ -20,11 +20,22 @@
                 <strong>Final seminar file:</strong> <span wicket:id="thesisFile"></span>
             </div>
 
+            <wicket:enclosure child="improvements_requested_comment">
+            <div class="alert alert-info">
+                <p>
+                    The supervisor has requested improvements to your opposition report.
+                    You have until <span wicket:id="improvements_requested_deadline"></span>
+                    to make the requested changes. See below for the comments from the supervisor.
+                </p>
+                <p class="mb-0" wicket:id="improvements_requested_comment"></p>
+            </div>
+            </wicket:enclosure>
+
             <div wicket:id="fillOutReport">
                 <strong>Thesis summary</strong>
 
                 <p>
-                    Ge en kort sammanfattning av det utvärderade arbetet.
+                    Give a short summary of the evaluated work.
                 </p>
                 <label>
                     <textarea class="form-control mb-4" rows="8" wicket:id="thesisSummary"></textarea>

view/src/main/java/se/su/dsv/scipro/finalseminar/OppositionReportPage.java

@@ -1,8 +1,11 @@
 package se.su.dsv.scipro.finalseminar;
 
 import jakarta.inject.Inject;
+import java.time.ZoneId;
+import java.util.Optional;
 import org.apache.wicket.RestartResponseException;
 import org.apache.wicket.ajax.AjaxRequestTarget;
+import org.apache.wicket.markup.html.basic.Label;
 import org.apache.wicket.markup.html.form.TextArea;
 import org.apache.wicket.model.IModel;
 import org.apache.wicket.model.LambdaModel;
@@ -24,7 +27,7 @@ public class OppositionReportPage extends AbstractProjectDetailsPage implements
     public static final String FILL_OUT_REPORT = "fillOutReport";
 
     @Inject
-    private FinalSeminarOppositionRepo finalSeminarOppositionRepo;
+    private FinalSeminarOppositionService finalSeminarOppositionService;
 
     @Inject
     private OppositionReportService oppositionReportService;
@@ -35,13 +38,15 @@ public class OppositionReportPage extends AbstractProjectDetailsPage implements
             throw new RestartResponseException(ProjectDetailsPage.class, pp);
         }
 
-        final FinalSeminarOpposition opposition = finalSeminarOppositionRepo.findOne(pp.get("oid").toLong());
+        final IModel<Opposition> opposition = LoadableDetachableModel.of(() ->
+            finalSeminarOppositionService.getOpposition(pp.get("oid").toLong())
+        );
 
-        if (opposition == null) {
+        if (opposition.getObject() == null) {
             throw new RestartResponseException(ProjectDetailsPage.class, pp);
         }
 
-        final IModel<OppositionReport> report = getOppositionReport(opposition);
+        final IModel<OppositionReport> report = opposition.map(Opposition::report);
 
         add(
             new ViewAttachmentPanel(
@@ -50,6 +55,33 @@ public class OppositionReportPage extends AbstractProjectDetailsPage implements
             )
         );
 
+        IModel<Opposition.ImprovementsNeeded> improvements = opposition
+            .map(Opposition::improvementsNeeded)
+            .map(OppositionReportPage::orNull);
+        add(
+            new Label("improvements_requested_comment", improvements.map(Opposition.ImprovementsNeeded::comment)) {
+                @Override
+                protected void onConfigure() {
+                    super.onConfigure();
+                    setVisible(!getDefaultModelObjectAsString().isBlank());
+                }
+            }
+        );
+        add(
+            new Label(
+                "improvements_requested_deadline",
+                improvements
+                    .map(Opposition.ImprovementsNeeded::deadline)
+                    .map(deadline -> deadline.atZone(ZoneId.systemDefault()))
+            ) {
+                @Override
+                protected void onConfigure() {
+                    super.onConfigure();
+                    setVisible(getDefaultModelObject() != null);
+                }
+            }
+        );
+
         add(
             new FillOutReportPanel<>(FILL_OUT_REPORT, report) {
                 {
@@ -71,18 +103,13 @@ public class OppositionReportPage extends AbstractProjectDetailsPage implements
                 @Override
                 protected void onConfigure() {
                     super.onConfigure();
-                    setEnabled(opposition.getUser().equals(SciProSession.get().getUser()));
+                    setEnabled(opposition.getObject().user().equals(SciProSession.get().getUser()));
                 }
             }
         );
     }
 
-    private IModel<OppositionReport> getOppositionReport(final FinalSeminarOpposition opposition) {
-        return new LoadableDetachableModel<>() {
-            @Override
-            protected OppositionReport load() {
-                return oppositionReportService.findOrCreateReport(opposition);
-            }
-        };
+    private static <A> A orNull(Optional<A> optional) {
+        return optional.orElse(null);
     }
 }

view/src/main/java/se/su/dsv/scipro/finalseminar/SeminarOppositionPanel.html

@@ -19,13 +19,20 @@
                     <div class="col-lg-5">
 
                         <form wicket:id="form">
-                            <div class="card mb-3 bg-info text-white">
-                                <wicket:message key="criteria"/>
+                            <div class="card mb-3 text-bg-info">
+                                <div class="card-body">
+                                    <p class="card-text">
+                                        <wicket:message key="criteria"/>
+                                    </p>
+                                    <p class="card-text" wicket:id="requirements">
+                                        <wicket:container wicket:id="requirement"/>
+                                    </p>
+                                </div>
                             </div>
 
                             <div class="mb-3">
                                 <label>Points:</label>
-                                <input type="text" class="form-control gradingPoints" wicket:id="points"/>
+                                <select class="form-select" wicket:id="points"></select>
                             </div>
 
                             <label>Motivation:</label>
@@ -34,6 +41,20 @@
                             <button wicket:id="submit" type="submit" class="btn btn-sm btn-success">
                                 <wicket:message key="submit"/>
                             </button>
+                            <a class="btn btn-outline-secondary btn-sm" wicket:id="request_improvements">
+                                Request improvements
+                            </a>
+                        </form>
+
+                        <form wicket:id="request_improvements">
+                            <div class="mb-3">
+                                <label class="form-label" wicket:for="feedback_to_opponent">
+                                    Provide feedback to the opponent on how to improve the opposition
+                                </label>
+                                <textarea class="form-control" wicket:id="feedback_to_opponent" rows="8"></textarea>
+                            </div>
+                            <button class="btn btn-sm btn-success">Request improvements</button>
+                            <a class="btn btn-outline-secondary btn-sm" wicket:id="cancel">Cancel</a>
                         </form>
 
                         <div wicket:id="gradeContainer">

view/src/main/java/se/su/dsv/scipro/finalseminar/SeminarOppositionPanel.java

@@ -2,18 +2,23 @@ package se.su.dsv.scipro.finalseminar;
 
 import com.google.common.eventbus.EventBus;
 import jakarta.inject.Inject;
+import java.time.Instant;
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
 import java.util.Date;
 import java.util.List;
 import java.util.Objects;
 import org.apache.wicket.ajax.AjaxRequestTarget;
+import org.apache.wicket.ajax.markup.html.AjaxLink;
 import org.apache.wicket.ajax.markup.html.form.AjaxSubmitLink;
 import org.apache.wicket.feedback.FencedFeedbackPanel;
 import org.apache.wicket.markup.html.WebMarkupContainer;
 import org.apache.wicket.markup.html.basic.Label;
+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.TextArea;
-import org.apache.wicket.markup.html.form.TextField;
 import org.apache.wicket.markup.html.link.Link;
 import org.apache.wicket.markup.html.list.ListItem;
 import org.apache.wicket.markup.html.list.ListView;
@@ -22,14 +27,15 @@ import org.apache.wicket.markup.html.panel.FeedbackPanel;
 import org.apache.wicket.markup.html.panel.Panel;
 import org.apache.wicket.model.IModel;
 import org.apache.wicket.model.LambdaModel;
+import org.apache.wicket.model.LoadableDetachableModel;
+import org.apache.wicket.model.Model;
 import org.apache.wicket.model.ResourceModel;
-import org.apache.wicket.validation.validator.RangeValidator;
 import org.apache.wicket.validation.validator.StringValidator;
 import se.su.dsv.scipro.components.ListAdapterModel;
+import se.su.dsv.scipro.components.StatelessModel;
 import se.su.dsv.scipro.profile.UserLinkPanel;
 import se.su.dsv.scipro.report.GradingReportService;
 import se.su.dsv.scipro.report.OppositionReportService;
-import se.su.dsv.scipro.report.SupervisorGradingReport;
 import se.su.dsv.scipro.security.auth.roles.Roles;
 import se.su.dsv.scipro.session.SciProSession;
 import se.su.dsv.scipro.system.ProjectModule;
@@ -43,8 +49,6 @@ public class SeminarOppositionPanel extends Panel {
     public static final String REMOVE = "remove";
     public static final String FORM = "form";
     public static final String POINTS = "points";
-    public static final int MIN_POINTS = 0;
-    public static final int MAX_POINTS = 2;
     public static final String GRADING_FEEDBACK = "gradingFeedback";
     public static final int FEEDBACK_MAX_LENGTH = 2000;
     public static final String SUBMIT = "submit";
@@ -75,6 +79,9 @@ public class SeminarOppositionPanel extends Panel {
     private final WebMarkupContainer oppositionContainer;
     private final ListView<FinalSeminarOpposition> opponents;
 
+    private FinalSeminarOppositionForm gradeForm;
+    private RequestImprovementsForm requestImprovementsForm;
+
     public SeminarOppositionPanel(String id, final IModel<FinalSeminar> seminar) {
         super(id, seminar);
         this.seminar = seminar;
@@ -107,6 +114,12 @@ public class SeminarOppositionPanel extends Panel {
 
     private ListView<FinalSeminarOpposition> getOpponentsList(final IModel<List<FinalSeminarOpposition>> oppositions) {
         return new ListView<>(OPPONENTS, oppositions) {
+            {
+                // Need to reuse child list items since they contain form components
+                // and if they're recreated all the state and error messages are lost
+                setReuseItems(true);
+            }
+
             @Override
             protected void populateItem(final ListItem<FinalSeminarOpposition> item) {
                 final FinalSeminarOpposition opposition = item.getModelObject();
@@ -121,7 +134,14 @@ public class SeminarOppositionPanel extends Panel {
 
                 item.add(getRemoveLink(item.getModel()));
 
-                item.add(getFinalSeminarOppositionForm(item));
+                gradeForm = getFinalSeminarOppositionForm(item);
+                gradeForm.setOutputMarkupPlaceholderTag(true);
+                item.add(gradeForm);
+
+                requestImprovementsForm = new RequestImprovementsForm("request_improvements", item.getModel());
+                requestImprovementsForm.setVisible(false);
+                requestImprovementsForm.setOutputMarkupPlaceholderTag(true);
+                item.add(requestImprovementsForm);
 
                 if (gradingModuleIsOnForProjectType()) {
                     item.add(new SeminarOppositionReportPanel("report", item.getModel()));
@@ -211,29 +231,34 @@ public class SeminarOppositionPanel extends Panel {
 
     private class FinalSeminarOppositionForm extends Form<FinalSeminarOpposition> {
 
+        private IModel<OppositionCriteria.Point> pointsModel = new StatelessModel<>();
+        private IModel<String> feedbackModel = new Model<>();
+
         public FinalSeminarOppositionForm(String id, final IModel<FinalSeminarOpposition> finalSeminarOpposition) {
             super(id, finalSeminarOpposition);
-            FormComponent<Integer> pointsField = new TextField<>(
+            IModel<OppositionCriteria> criteriaModel = LoadableDetachableModel.of(() ->
+                finalSeminarOppositionService.getCriteriaForOpposition(finalSeminarOpposition.getObject())
+            );
+
+            add(
+                new ListView<>("requirements", criteriaModel.map(this::getPointsWithRequirements)) {
+                    @Override
+                    protected void populateItem(ListItem<OppositionCriteria.Point> item) {
+                        item.add(new Label("requirement", item.getModel().map(OppositionCriteria.Point::requirement)));
+                    }
+                }
+            );
+
+            FormComponent<OppositionCriteria.Point> pointsField = new DropDownChoice<>(
                 POINTS,
-                LambdaModel.of(
-                    finalSeminarOpposition,
-                    FinalSeminarOpposition::getPoints,
-                    FinalSeminarOpposition::setPoints
-                )
-            )
-                .add(RangeValidator.range(MIN_POINTS, MAX_POINTS))
-                .setType(Integer.class)
-                .setRequired(true);
+                pointsModel,
+                criteriaModel.map(OppositionCriteria::pointsAvailable),
+                new LambdaChoiceRenderer<>(OppositionCriteria.Point::value)
+            );
+            pointsField.setRequired(true);
             add(pointsField);
 
-            TextArea<String> feedback = new TextArea<>(
-                GRADING_FEEDBACK,
-                LambdaModel.of(
-                    finalSeminarOpposition,
-                    FinalSeminarOpposition::getFeedback,
-                    FinalSeminarOpposition::setFeedback
-                )
-            );
+            TextArea<String> feedback = new TextArea<>(GRADING_FEEDBACK, feedbackModel);
             feedback.add(StringValidator.maximumLength(FEEDBACK_MAX_LENGTH));
             feedback.setRequired(true);
             add(feedback);
@@ -242,33 +267,19 @@ public class SeminarOppositionPanel extends Panel {
                 new AjaxSubmitLink(SUBMIT) {
                     @Override
                     protected void onSubmit(AjaxRequestTarget target) {
-                        if (getModelObject().getPoints().equals(0)) {
-                            finalSeminarOpposition.getObject().setGrade(FinalSeminarGrade.NOT_APPROVED);
-                            eventBus.post(new OppositionFailedEvent(finalSeminarOpposition.getObject()));
-                        } else {
-                            finalSeminarOpposition.getObject().setGrade(FinalSeminarGrade.APPROVED);
-                            eventBus.post(new OppositionApprovedEvent(finalSeminarOpposition.getObject()));
-                        }
-                        finalSeminarOppositionService.save(finalSeminarOpposition.getObject());
-                        boolean updated = true;
-                        if (gradingModuleIsOnForProjectType()) {
-                            SupervisorGradingReport report = gradingReportService.getSupervisorGradingReport(
-                                finalSeminarOpposition.getObject().getProject(),
-                                finalSeminarOpposition.getObject().getUser()
-                            );
-                            updated = gradingReportService.updateOppositionCriteria(
-                                report,
-                                finalSeminarOpposition.getObject()
+                        try {
+                            finalSeminarOppositionService.gradeOpponent(
+                                finalSeminarOpposition.getObject(),
+                                pointsModel.getObject().value(),
+                                feedbackModel.getObject()
                             );
+                            success(getString("feedback.opponent.updated", finalSeminarOpposition));
+                            target.add(feedbackPanel);
+                            target.add(oppositionContainer);
+                        } catch (PointNotValidException e) {
+                            error(getString("point.not.valid"));
+                            target.add(feedbackPanel);
                         }
-                        success(
-                            getString(
-                                updated ? "feedback.opponent.updated" : "feedback.opponent.not.updated",
-                                finalSeminarOpposition
-                            )
-                        );
-                        target.add(feedbackPanel);
-                        target.add(oppositionContainer);
                     }
 
                     @Override
@@ -277,6 +288,31 @@ public class SeminarOppositionPanel extends Panel {
                     }
                 }
             );
+
+            add(
+                new AjaxLink<Void>("request_improvements") {
+                    @Override
+                    public void onClick(AjaxRequestTarget target) {
+                        requestImprovementsForm.setVisible(true);
+                        target.add(requestImprovementsForm);
+                        gradeForm.setVisible(false);
+                        target.add(gradeForm);
+                        target.appendJavaScript(
+                            "document.getElementById('" +
+                            requestImprovementsForm.get("feedback_to_opponent").getMarkupId() +
+                            "').focus();"
+                        );
+                    }
+                }
+            );
+        }
+
+        private List<OppositionCriteria.Point> getPointsWithRequirements(OppositionCriteria oppositionCriteria) {
+            return oppositionCriteria
+                .pointsAvailable()
+                .stream()
+                .filter(point -> !point.requirement().isBlank())
+                .toList();
         }
 
         @Override
@@ -298,4 +334,44 @@ public class SeminarOppositionPanel extends Panel {
     private boolean hasSubmittedOppositionReport(FinalSeminarOpposition opposition) {
         return oppositionReportService.findOrCreateReport(opposition).isSubmitted();
     }
+
+    private class RequestImprovementsForm extends Form<FinalSeminarOpposition> {
+
+        private final Model<String> feedbackToOpponentModel = new Model<>();
+
+        public RequestImprovementsForm(String id, IModel<FinalSeminarOpposition> model) {
+            super(id, model);
+            TextArea<String> feedbackToOpponentField = new TextArea<>("feedback_to_opponent", feedbackToOpponentModel);
+            feedbackToOpponentField.setRequired(true);
+            add(feedbackToOpponentField);
+
+            add(
+                new AjaxLink<Void>("cancel") {
+                    @Override
+                    public void onClick(AjaxRequestTarget target) {
+                        requestImprovementsForm.setVisible(false);
+                        target.add(requestImprovementsForm);
+                        gradeForm.setVisible(true);
+                        target.add(gradeForm);
+                    }
+                }
+            );
+        }
+
+        @Override
+        protected void onSubmit() {
+            Instant deadline = finalSeminarOppositionService.requestImprovements(
+                getModelObject(),
+                feedbackToOpponentModel.getObject()
+            );
+
+            record ImprovementFeedback(String fullName, ZonedDateTime deadline) {}
+            ZonedDateTime localDeadline = deadline.atZone(ZoneId.systemDefault());
+            success(
+                getString("feedback.opponent.requested.improvements", () ->
+                    new ImprovementFeedback(getModelObject().getUser().getFullName(), localDeadline)
+                )
+            );
+        }
+    }
 }

view/src/main/java/se/su/dsv/scipro/finalseminar/SeminarOppositionPanel.properties

@@ -8,16 +8,15 @@ gradingFeedback.Required = You need to write a motivation
 points.Required = Points are required
 opponents.form.points.RangeValidator.range= Points assigned must be between ${minimum} and ${maximum}
 feedback.opponent.updated= Opponent ${user.fullName} feedback updated.
+point.not.valid=You need to assign points from the available selection.
 feedback.opponent.not.updated= Opponent ${user.fullName} feedback updated. Point and motivation could not be transferred to the students final grading report since the opponents supervisor already filled it in.
-criteria= As the supervisor on this final seminar you are also required to grade the opponents opposition report.\
-  <\br><\br>Requirement for 1 point: <\br>That the opposition report provides a short summary of the evaluated thesis, that it deliberates about the scientific basis, originality, \
-  significance, and formulation of the problem and research question, as well as that it contains clear suggestions for improvements. \
-  <\br><\br>For 2 points the following is also required: \
-  <\br>That the opposition report thoroughly and in a well-balanced way describes from numerous aspects the strengths and weaknesses of the evaluated thesis and that it \
-  offers clear and well- motivated suggestions for improvements.
+criteria= As the supervisor on this final seminar you are also required to grade the opponents opposition report.
 opposition.report= Opposition report:
 removed= Opponent ${user.fullName} successfully removed
 opposition.report.removed= Opposition report successfully removed
 are.you.sure= Are you sure you want to remove this opponent report?
 no.opponents= There are no opponents registered yet.
-noOppositionReportYet= No opposition report has been submitted yet.
+noOppositionReportYet= No opposition report has been submitted yet.
+feedback.opponent.requested.improvements = You've requested improvements from ${fullName}. \
+  They have until ${deadline} to make the changes. If they fail to resubmit by that point they \
+  will automatically get a failing grade.

view/src/main/java/se/su/dsv/scipro/notifications/pages/NotificationLandingPage.java

@@ -180,7 +180,7 @@ public class NotificationLandingPage extends WebPage {
             case FIRST_MEETING:
                 defaultSplit.accept(ProjectFirstMeetingPage.class, SupervisorFirstMeetingPage.class);
                 break;
-            case OPPOSITION_FAILED:
+            case OPPOSITION_FAILED, OPPOSITION_REPORT_IMPROVEMENTS_REQUESTED:
                 defaultSplit.accept(ProjectOppositionPage.class, SupervisorProjectDetailsPage.class);
                 break;
             default:

view/src/main/java/se/su/dsv/scipro/wicket-package.utf8.properties

@@ -63,6 +63,7 @@ ProjectEvent.SUPERVISOR_GRADING_INITIAL_ASSESSMENT_DONE = The supervisor finishe
 ProjectEvent.EXPORTED_SUCCESS = Idea was successfully exported to a thesis course in Daisy and a project in SciPro.
 ProjectEvent.FIRST_MEETING = First meeting created. (with date, time, place/room/communication method specified by supervisor)
 ProjectEvent.OPPOSITION_FAILED = An author fails their opposition.
+ProjectEvent.OPPOSITION_REPORT_IMPROVEMENTS_REQUESTED = Opposition report improvements requested.
 ProjectEvent.PARTICIPATION_APPROVED = An author's active participation is approved.
 ProjectEvent.PARTICIPATION_FAILED = An author fails their active participation.
 ProjectEvent.REFLECTION_IMPROVEMENTS_REQUESTED = Reflection improvements requested.

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

@@ -321,9 +321,6 @@ public abstract class SciProTest {
     @Mock
     protected FinalSeminarUploadController finalSeminarUploadController;
 
-    @Mock
-    protected FinalSeminarOppositionRepo finalSeminarOppositionRepo;
-
     @Mock
     protected PlagiarismControl plagiarismControl;
 

view/src/test/java/se/su/dsv/scipro/finalseminar/OppositionReportPageTest.java

@@ -76,10 +76,9 @@ public class OppositionReportPageTest extends SciProTest {
         Mockito.when(finalSeminarService.findByProject(opponentsProject)).thenReturn(finalSeminar);
     }
 
-    private void mockReport(ProjectType bachelor) {
+    private OppositionReport mockReport(ProjectType bachelor) {
         GradingReportTemplate reportTemplate = createTemplate(bachelor);
-        OppositionReport oppositionReport = reportTemplate.createOppositionReport(finalSeminarOpposition);
-        Mockito.when(oppositionReportService.findOrCreateReport(finalSeminarOpposition)).thenReturn(oppositionReport);
+        return reportTemplate.createOppositionReport(finalSeminarOpposition);
     }
 
     @Test
@@ -104,14 +103,16 @@ public class OppositionReportPageTest extends SciProTest {
     public void disable_form_if_opposition_does_not_belong_to_logged_in_user() {
         mockReport(bachelor);
         long oppositionId = 4L;
-        Mockito.when(finalSeminarOppositionRepo.findOne(oppositionId)).thenReturn(finalSeminarOpposition);
+        Mockito.when(finalSeminarOppositionService.getOpposition(oppositionId)).thenReturn(
+            new Opposition(user, mockReport(bachelor), Optional.empty())
+        );
         startPage(oppositionId);
         tester.assertDisabled(FILL_OUT_REPORT);
     }
 
     @Test
     public void redirect_if_no_opposition_is_found_from_id() {
-        Mockito.when(finalSeminarOppositionRepo.findOne(ArgumentMatchers.anyLong())).thenReturn(null);
+        Mockito.when(finalSeminarOppositionService.getOpposition(ArgumentMatchers.anyLong())).thenReturn(null);
         startPage(1L);
         tester.assertRenderedPage(ProjectDetailsPage.class);
     }
@@ -156,7 +157,9 @@ public class OppositionReportPageTest extends SciProTest {
     private void startOppositionPage() {
         long oppositionId = 4L;
         setLoggedInAs(user);
-        Mockito.when(finalSeminarOppositionRepo.findOne(oppositionId)).thenReturn(finalSeminarOpposition);
+        Mockito.when(finalSeminarOppositionService.getOpposition(oppositionId)).thenReturn(
+            new Opposition(user, mockReport(bachelor), Optional.empty())
+        );
         startPage(oppositionId);
     }
 

view/src/test/java/se/su/dsv/scipro/finalseminar/SeminarOppositionPanelTest.java

@@ -61,6 +61,15 @@ public class SeminarOppositionPanelTest extends SciProTest {
         finalSeminar.setProject(project);
 
         setLoggedInAs(supervisorUser);
+
+        Mockito.lenient()
+            .when(finalSeminarOppositionService.getCriteriaForOpposition(opposition))
+            .thenReturn(
+                new OppositionCriteria(
+                    1,
+                    List.of(new OppositionCriteria.Point(0, ""), new OppositionCriteria.Point(1, "Filled in report"))
+                )
+            );
     }
 
     @Test

view/src/test/java/se/su/dsv/scipro/finalseminar/SeminarPanelTest.java

@@ -66,6 +66,14 @@ public class SeminarPanelTest extends SciProTest {
         Mockito.when(plagiarismControl.getStatus(any(FileDescription.class))).thenReturn(
             new PlagiarismControl.Status.NotSubmitted()
         );
+        Mockito.lenient()
+            .when(finalSeminarOppositionService.getCriteriaForOpposition(opposition))
+            .thenReturn(
+                new OppositionCriteria(
+                    1,
+                    List.of(new OppositionCriteria.Point(0, ""), new OppositionCriteria.Point(1, "Filled in report"))
+                )
+            );
     }
 
     private void addCoSupervisorToProject() {