using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using TaskTrackerContracts.BindingModels;
using TaskTrackerContracts.ViewModels;
using TaskTrackerDataModels.Models;

namespace TaskTrackerDatabase.Models
{
	public class Subject : ISubjectModel
	{
		public int Id { get; set; }

		[Required]
		public string Name { get; set; } = string.Empty;
		[ForeignKey("SubjectId")]
		public virtual List<Exam> Exams { get; set; } = new();
		[ForeignKey("SubjectId")]
		public virtual List<Result> Results { get; set; } = new();
		public static Subject? Create(SubjectBindingModel? model)
		{
			if (model == null)
			{
				return null;
			}
			return new Subject()
			{
				Id = model.Id,
				Name = model.Name,
			};
		}

		public void Update(SubjectBindingModel? model)
		{
			if (model == null)
			{
				return;
			}
			Name = model.Name;
		}

		public SubjectViewModel GetViewModel => new()
		{
			Id = Id,
			Name = Name,
		};
	}
}