namespace LehrerApp.Core.Models;

public class LearningGroup
{
    public Guid Id { get; set; } = Guid.NewGuid();
    public string Name { get; set; } = "";
    public GroupType Type { get; set; }
    public string? Subject { get; set; }
    public Guid? SubjectId { get; set; }
    public string SchoolYear { get; set; } = "";
    public int GradeLevel { get; set; }
    public GradingSystem GradingSystem { get; set; }
    public int? HoursPerWeek { get; set; }
    public bool IsActive { get; set; } = true;
    public bool IsOwnClass { get; set; }
    public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
    public DateTime UpdatedAt { get; set; } = DateTime.UtcNow;
}
public class Enrollment
{
    public Guid   Id         { get; set; } = Guid.NewGuid();
    public Guid   StudentId  { get; set; }
    public Guid   GroupId    { get; set; }
    public string SchoolYear { get; set; } = "";
    public DateOnly  EnrolledAt { get; set; } = DateOnly.FromDateTime(DateTime.Today);
    public EnrollmentPeriod Period   { get; set; } = EnrollmentPeriod.FullYear;
    public DateOnly? JoinedAt { get; set; }
    public DateOnly? LeftAt   { get; set; }
}
public enum EnrollmentPeriod { FullYear, H1Only, H2Only, Custom }
public enum GroupType { Class, Course }
public enum GradingSystem { Grades1To6, Points0To15 }