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 IAcademicPlanRecordService
	/// </summary>
	public class AcademicPlanRecordService :
		AbstractGenerticEntityService<AcademicPlanRecordGetBindingModel, AcademicPlanRecordSetBindingModel, AcademicPlanRecord, AcademicPlanRecordListViewModel, AcademicPlanRecordViewModel>,
		IAcademicPlanRecordService
	{
		protected override OperationResultModel AdditionalCheckingWhenAdding(DbContext context, AcademicPlanRecordSetBindingModel model) => OperationResultModel.Success(null);

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

		protected override IQueryable<AcademicPlanRecord> AdditionalCheckingWhenReadingList(IQueryable<AcademicPlanRecord> query, AcademicPlanRecordGetBindingModel model)
		{
			if (model.AcademicPlanId.HasValue)
			{
				query = query.Where(x => x.AcademicPlanId == model.AcademicPlanId.Value);
			}
			if (model.DisciplineId.HasValue)
			{
				query = query.Where(x => x.DisciplineId == model.DisciplineId.Value);
			}
			if (model.Semester.HasValue)
			{
				query = query.Where(x => x.Semester == model.Semester.Value);
			}
			return query;
		}

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

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

		protected override AcademicPlanRecord GetUniqueEntity(AcademicPlanRecordSetBindingModel model, DbContext context) => context.Set<AcademicPlanRecord>().FirstOrDefault(x => x.AcademicPlanId == model.AcademicPlanId && x.DisciplineId == model.DisciplineId && x.Semester == model.Semester && x.Id != model.Id);

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

		protected override IQueryable<AcademicPlanRecord> OrderingWhenReading(IQueryable<AcademicPlanRecord> query) => 
			query.OrderBy(x => x.AcademicPlanId).ThenBy(x => x.Semester).ThenBy(x => x.AcademicPlanRecordParentId.HasValue || x.IsParent).ThenBy(x => x.AcademicPlanRecordParentId.HasValue).ThenBy(x => x.Discipline.DisciplineName);
	}
}