using DatabaseCore;
using DatabaseCore.Models.Department;
using DepartmentBusinessLogic.BindingModels;
using DepartmentBusinessLogic.Interfaces;
using DepartmentBusinessLogic.ViewModels;
using Microsoft.EntityFrameworkCore;
using ModuleTools.Models;
using System;
using System.Linq;

namespace DepartmentDatabaseImplementation.Implementations
{
	/// <summary>
	/// Реализация IAcademicPlanService
	/// </summary>
	public class AcademicPlanService :
		AbstractGenerticEntityService<AcademicPlanGetBindingModel, AcademicPlanSetBindingModel, AcademicPlan, AcademicPlanListViewModel, AcademicPlanViewModel>,
		IAcademicPlanService
	{
		protected override OperationResultModel AdditionalCheckingWhenAdding(DbContext context, AcademicPlanSetBindingModel model) => OperationResultModel.Success(null);

		protected override OperationResultModel AdditionalCheckingWhenDeleting(DbContext context, AcademicPlan entity, AcademicPlanGetBindingModel model) => OperationResultModel.Success(null);

		protected override IQueryable<AcademicPlan> AdditionalCheckingWhenReadingList(IQueryable<AcademicPlan> query, AcademicPlanGetBindingModel model)
		{
			if (model.EducationDirectionId.HasValue)
			{
				query = query.Where(x => x.EducationDirectionId == model.EducationDirectionId.Value);
			}
			return query;
		}

		protected override OperationResultModel AdditionalCheckingWhenUpdateing(DbContext context, AcademicPlanSetBindingModel model) => OperationResultModel.Success(null);

		protected override void AdditionalDeleting(DbContext context, AcademicPlan entity, AcademicPlanGetBindingModel model)
		{
			var records = context.Set<AcademicPlanRecord>().Where(x => x.AcademicPlanId == model.Id);
			foreach (var record in records)
			{
				var hours = context.Set<AcademicPlanRecordTimeNormHour>().Where(x => x.AcademicPlanRecordId == record.Id);
				foreach (var hour in hours)
				{
					hour.IsDeleted = true;
					hour.DateDelete = DateTime.Now;
				}
				context.SaveChanges();

				record.IsDeleted = true;
				record.DateDelete = DateTime.Now;
			}
			context.SaveChanges();
		}

		protected override AcademicPlan GetUniqueEntity(AcademicPlanSetBindingModel model, DbContext context) => context.Set<AcademicPlan>().FirstOrDefault(x => x.EducationDirectionId == model.EducationDirectionId && x.YearEntrance == model.YearEntrance && x.Id != model.Id);

		protected override IQueryable<AcademicPlan> IncludingWhenReading(IQueryable<AcademicPlan> query) => query.Include(x => x.EducationDirection);

		protected override IQueryable<AcademicPlan> OrderingWhenReading(IQueryable<AcademicPlan> query) => query.OrderBy(x => x.EducationDirection.Cipher).ThenBy(x => x.YearEntrance);
	}
}