using StudentEnrollmentContracts.BindingModels;
using StudentEnrollmentContracts.ViewModels;
using StudentEnrollmentDataModels.Models;
using System.ComponentModel.DataAnnotations;

namespace StudentEnrollmentDatabaseImplement.Models
{
	public class ExamPoints //: IExamPointsModel
	{
		[Key]
		public int exampoints_id { get; private set; }
		[Required]
		public int firstexampoints { get; private set; }
		[Required]
		public int secondexampoints { get; private set; }
		[Required]
		public int thirdexampoints { get; private set; }
		public int addpoints { get; private set; }
		public int summary { get; private set; }
		public static ExamPoints? Create(ExamPointsBindingModel model)
		{
			if (model == null) {
				return null;
			}
			return new ExamPoints()
			{
				exampoints_id = model.Id,
				firstexampoints = model.FirstExamPoints,
				secondexampoints = model.SecondExamPoints,
				thirdexampoints = model.ThirdExamPoints,
				addpoints = model.AddPoints,
				summary = model.FirstExamPoints + model.SecondExamPoints + model.ThirdExamPoints + model.AddPoints,
			};
		}
		public void Update(ExamPointsBindingModel model)
		{
			if (model == null)
			{
				return;
			}
            summary -= addpoints;
            addpoints = model.AddPoints;
            summary += model.AddPoints;
        }

		public ExamPointsViewModel GetViewModel => new()
		{
			Id = exampoints_id,
			FirstExamPoints = firstexampoints,
			SecondExamPoints = secondexampoints,
			ThirdExamPoints = thirdexampoints,
			AddPoints = addpoints,
			Summary = summary,
		};
	}
}