using LehrerApp.Core.Models;

namespace LehrerApp.Core.Interfaces;

public interface IStudentRepository
{
    Student? GetById(Guid id);
    List<Student> GetAll(bool includeInactive = false);
    List<Student> GetByGroup(Guid groupId);
    StudentReferenceSummary GetReferenceSummary(Guid studentId);
    void Save(Student student);
    void Delete(Guid id);
}
public interface IGroupRepository
{
    LearningGroup? GetById(Guid id);
    List<LearningGroup> GetAll(bool includeInactive = false);
    List<LearningGroup> GetBySchoolYear(string schoolYear, bool includeInactive = false);
    void Save(LearningGroup group);
    void Delete(Guid id);
}
public interface ISeatingPlanRepository
{
    SeatingPlan? GetById(Guid id);
    List<SeatingPlan> GetByGroup(Guid groupId);
    void Save(SeatingPlan plan);
    void Delete(Guid id);
    /// <summary>Stellt einen über <see cref="Delete"/> in den Papierkorb verschobenen Sitzplan
    /// wieder her (14.3). Tut nichts, falls der Papierkorb-Eintrag nicht (mehr) existiert.</summary>
    void Restore(Guid trashId);
}
public interface IGroupMembershipRepository
{
    List<GroupMembership> GetByStudent(Guid studentId);
    List<GroupMembership> GetByGroup(Guid groupId);
    GroupMembership? GetByStudentAndGroup(Guid studentId, Guid groupId);
    void Save(GroupMembership membership);
    void Delete(Guid id);
}
public interface IExamRepository
{
    Exam? GetById(Guid id);
    List<Exam> GetAll();
    List<Exam> GetByGroup(Guid groupId);
    void Save(Exam exam);
    void Delete(Guid id);
}
public interface IExamResultRepository
{
    List<ExamResult> GetByExam(Guid examId);
    List<ExamResult> GetByStudent(Guid studentId);
    ExamResult? GetByExamAndStudent(Guid examId, Guid studentId);
    void Save(ExamResult result);
    void SaveMany(List<ExamResult> results);
}
public interface IGradingKeyTemplateRepository
{
    List<GradingKeyTemplate> GetAll();
    List<GradingKeyTemplate> GetByGradingSystem(GradingSystem system);
    GradingKeyTemplate? GetById(Guid id);
    void Save(GradingKeyTemplate template);
    void Delete(Guid id);
    /// <summary>Siehe ISeatingPlanRepository.Restore (14.3).</summary>
    void Restore(Guid trashId);
}
public interface IGradeRepository
{
    List<Grade> GetByStudentAndGroup(Guid studentId, Guid groupId);
    List<Grade> GetByGroup(Guid groupId);
    void Save(Grade grade);
    void Delete(Guid id);
    /// <summary>Siehe ISeatingPlanRepository.Restore (14.3).</summary>
    void Restore(Guid trashId);
}
public interface IGradingSchemeRepository
{
    GradingScheme? GetByGroup(Guid groupId);
    GradingScheme? GetDefaultForType(GroupType type);
    void Save(GradingScheme scheme);
    void Delete(Guid id);
}
public interface IReportGradeRepository
{
    List<ReportGrade> GetByGroup(Guid groupId);
    ReportGrade? GetByStudentGroupPeriod(Guid studentId, Guid groupId, string period);
    void Save(ReportGrade grade);
    void Delete(Guid id);
}
public interface IUnitRepository
{
    Unit? GetById(Guid id);
    List<Unit> GetByGroup(Guid groupId);
    void Save(Unit unit);
    void Delete(Guid id);
}
public interface ILessonRepository
{
    List<Lesson> GetByUnit(Guid unitId);
    List<Lesson> GetByGroupAndDate(Guid groupId, DateOnly date);
    List<Lesson> GetByGroupAndRange(Guid groupId, DateOnly from, DateOnly to);
    void Save(Lesson lesson);
    void Delete(Guid id);
}
public interface ITimetableSlotRepository
{
    List<TimetableSlot> GetAll();
    List<TimetableSlot> GetByGroup(Guid groupId);
    void Save(TimetableSlot slot);
    void Delete(Guid id);
}
public interface ISchoolHolidayRepository
{
    List<SchoolHoliday> GetAll();
    void Save(SchoolHoliday holiday);
    void Delete(Guid id);
}
public interface ISupervisionDutyRepository
{
    List<SupervisionDuty> GetAll();
    void Save(SupervisionDuty duty);
    void Delete(Guid id);
}
public interface ISubstitutionEntryRepository
{
    List<SubstitutionEntry> GetAll();
    List<SubstitutionEntry> GetByDate(DateOnly date);
    /// Für den WebUntis-Abgleich (idempotentes Update statt Duplikat je iCal-UID).
    SubstitutionEntry? GetByExternalId(string externalId);
    void Save(SubstitutionEntry entry);
    void Delete(Guid id);
}
/// Zuletzt bekannter Zustand aller WebUntis-iCal-Termine, für den Abgleich bei jedem Abruf.
public interface IUntisSnapshotRepository
{
    List<UntisSnapshotEntry> GetAll();
    void Save(UntisSnapshotEntry entry);
    void Delete(Guid id);
}
/// Vom Nutzer bestätigte Zuordnungen WebUntis-Wochenmuster → LearningGroup.
public interface IUntisSlotMappingRepository
{
    List<UntisSlotMapping> GetAll();
    void Save(UntisSlotMapping mapping);
    void Delete(Guid id);
}
public interface IDocumentationRepository
{
    List<Documentation> GetByStudent(Guid studentId);
    List<Documentation> GetByStudentAndType(Guid studentId, DocumentationType type);
    /// Alle nicht gelöschten Einträge, über alle Schüler hinweg (z.B. für Dashboard-Auswertungen).
    List<Documentation> GetAll();
    void Save(Documentation doc);
    /// Markiert den Eintrag als gelöscht, statt ihn hart zu entfernen (5.1.4).
    void Delete(Guid id);
    /// Entfernt den Eintrag endgültig — nur für die Löschfristen-Bereinigung (5.4.2).
    void HardDelete(Guid id);
}
public interface IWorkTaskRepository
{
    List<WorkTask> GetByStatus(WorkTaskStatus status);
    List<WorkTask> GetAll();
    /// Für das "Anstehende Aufgaben"-Widget im Kurs-Dashboard (9.2/7.2).
    List<WorkTask> GetByGroup(Guid groupId);
    void Save(WorkTask task);
    void Delete(Guid id);
    /// <summary>Siehe ISeatingPlanRepository.Restore (14.3).</summary>
    void Restore(Guid trashId);
}
public interface ITimeEntryRepository
{
    List<TimeEntry> GetByDate(DateOnly date);
    List<TimeEntry> GetByDateRange(DateOnly from, DateOnly to);
    List<TimeEntry> GetByTask(Guid taskId);
    void Save(TimeEntry entry);
    void Delete(Guid id);
    /// <summary>Siehe ISeatingPlanRepository.Restore (14.3).</summary>
    void Restore(Guid trashId);
}
public interface IParticipationSessionRepository
{
    List<ParticipationSession> GetByGroup(Guid groupId);
    ParticipationSession? GetById(Guid id);
    void Save(ParticipationSession session);
    void Delete(Guid id);
}
public interface IParticipationRepository
{
    List<ParticipationEntry> GetBySession(Guid sessionId);
    List<ParticipationEntry> GetByStudent(Guid studentId);
    ParticipationEntry? GetBySessionAndStudent(Guid sessionId, Guid studentId);
    void Save(ParticipationEntry entry);
    void SaveMany(List<ParticipationEntry> entries);
    void DeleteBySession(Guid sessionId);
}
public interface IParticipationAspectRepository
{
    List<ParticipationAspect> GetDefaults();
    List<ParticipationAspect> GetByGroup(Guid groupId);
    // Wie GetByGroup, aber inkl. deaktivierter Aspekte — für die Verwaltungsansicht (3.1),
    // damit ein deaktivierter Aspekt dort sichtbar bleibt und wieder aktiviert werden kann.
    List<ParticipationAspect> GetAllByGroup(Guid groupId);
    void Save(ParticipationAspect aspect);
    void Delete(Guid id);
}
public interface IParticipationSectionRepository
{
    List<ParticipationSection> GetByGroup(Guid groupId);
    void Save(ParticipationSection section);
    void Delete(Guid id);
}
public interface ISubjectRepository
{
    List<Subject> GetAll();
    Subject? GetById(Guid id);
    Subject? GetByName(string name);
    void Save(Subject subject);
    void Delete(Guid id);
}
public interface ICompetencyDomainRepository
{
    List<CompetencyDomain> GetBySubjectAndGrade(Guid subjectId, int gradeLevel);
    CompetencyDomain? GetById(Guid id);
    void Save(CompetencyDomain domain);
    void Delete(Guid id);
    void DeleteBySubjectAndGrade(Guid subjectId, int gradeLevel);
    void ReplaceForSubjectAndGrade(Guid subjectId, int gradeLevel, List<CompetencyDomain> domains);
}
public interface IShorthandCodeRepository
{
    List<ShorthandCode> GetAll();
    void Save(ShorthandCode code);
    void Delete(Guid id);
}
public interface IAlternativeLessonPathRepository
{
    List<AlternativeLessonPath> GetAll();
    AlternativeLessonPath? GetById(Guid id);
    void Save(AlternativeLessonPath path);
    void Delete(Guid id);
}
/// <summary>Papierkorb (14.3) — reine Übersicht/Aufräumen; das eigentliche Wiederherstellen läuft
/// über die jeweilige Fach-Repository (z.B. IGradeRepository.Restore), da nur die kennt, wie ein
/// Schnappschuss ihres Modells korrekt gespeichert wird (Validierung, OnChange-Ereignis).</summary>
public interface ITrashRepository
{
    List<TrashedItem> GetAll();
    void PurgeOlderThan(DateTime cutoffUtc);
}