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

namespace SportCompetitionsBusinessLogic.BusinessLogics
{
	public class ResultLogic : IResultLogic
	{
		private readonly IResultStorage _ResultStorage;

		public ResultLogic(IResultStorage ResultStorage)
		{
			_ResultStorage = ResultStorage;
		}
		public ResultViewModel? ReadElement(ResultSearchModel model)
		{
			if (model == null)
			{
				throw new ArgumentNullException(nameof(model));
			}

			var element = _ResultStorage.GetElement(model);
			if (element == null)
			{
				return null;
			}
			return element;
		}

		public List<ResultViewModel>? ReadList(ResultSearchModel? model)
		{
			var list = model == null ? _ResultStorage.GetFullList() : _ResultStorage.GetFilteredList(model);
			if (list == null)
			{
				return null;
			}
			return list;
		}

		public bool Create(ResultBindingModel model)
		{
			CheckModel(model);
			if (_ResultStorage.Insert(model) == null)
			{
				return false;
			}
			return true;
		}

		public bool Delete(ResultBindingModel model)
		{
			CheckModel(model, false);
			if (_ResultStorage.Delete(model) == null)
			{
				return false;
			}
			return true;
		}

		public bool Update(ResultBindingModel model)
		{
			CheckModel(model);
			if (_ResultStorage.Update(model) == null)
			{
				return false;
			}
			return true;
		}

		private void CheckModel(ResultBindingModel model, bool withParams = true)
		{
			if (model == null)
			{
				throw new ArgumentNullException(nameof(model));
			}
			if (!withParams)
			{
				return;
			}
		}
	}
}