using SchoolScheduleContracts.BindingModels;
using SchoolScheduleContracts.BusinessLogicsContracts;
using SchoolScheduleContracts.SearchModels;
using SchoolScheduleContracts.StoragesContracts;
using SchoolScheduleContracts.ViewModels;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SchoolScheduleBusinessLogic
{
	public class StudentLogic : IStudentLogic
	{
		private readonly IStudentStorage _studentStorage;
		public StudentLogic(IStudentStorage studentStorage)
		{
			_studentStorage = studentStorage;
		}

		public List<StudentViewModel> ReadList(StudentSearchModel? model)
		{
			var list = model == null ? _studentStorage.GetFullList() :
_studentStorage.GetFilteredList(model);
			return list;
		}

		public StudentViewModel? ReadElement(StudentSearchModel model)
		{
			if (model == null)
			{
				throw new ArgumentNullException(nameof(model));
			}
			var element = _studentStorage.GetElement(model);
			return element;
		}
		public bool Create(StudentBindingModel model)
		{
			if (_studentStorage.Insert(model) == null)
			{
				return false;
			}
			return true;
		}
		public bool Update(StudentBindingModel model)
		{
			if (_studentStorage.Update(model) == null)
			{
				return false;
			}
			return true;
		}
		public bool Delete(StudentBindingModel model)
		{
			if (_studentStorage.Delete(model) == null)
			{
				return false;
			}
			return true;
		}
	}
}