using CoreDatabase;
using CoreDatabase.Models.Department;
using DepartmentContract.BindingModels;
using DepartmentContract.Services.IGenericEntityService;
using DepartmentContract.ViewModels;
using Microsoft.EntityFrameworkCore;
using System.Linq;
using ToolsModule.Enums;
using ToolsModule.Models;

namespace DepartmentDatabaseImplementation.Implementations.AbstractGenerticEntityService
{
    /// <summary>
    /// Реализация IDisciplineBlockService
    /// </summary>
    public class DisciplineBlockService :
		AbstractGenerticEntityService<DisciplineBlockGetBindingModel, DisciplineBlockSetBindingModel, DisciplineBlock, DisciplineBlockListViewModel, DisciplineBlockViewModel>, 
		IDisciplineBlockService
	{
		protected override OperationResultModel AdditionalCheckingWhenAdding(DbContext context, DisciplineBlockSetBindingModel model) => OperationResultModel.Success(null);

		protected override OperationResultModel AdditionalCheckingWhenDeleting(DbContext context, DisciplineBlock entity, DisciplineBlockGetBindingModel model)
		{
			if (context.Set<Discipline>().Any(x => x.DisciplineBlockId == model.Id && !x.IsDeleted))
			{
				return OperationResultModel.Error("Error:", "Есть дисциплины, относящиеся к этому блоку", ResultServiceStatusCode.ExsistItem);
			}
			if (context.Set<TimeNorm>().Any(x => x.DisciplineBlockId == model.Id && !x.IsDeleted))
			{
				return OperationResultModel.Error("Error:", "Есть нормы времени, относящиеся к этому блоку", ResultServiceStatusCode.ExsistItem);
			}
			return OperationResultModel.Success(null);
		}

		protected override IQueryable<DisciplineBlock> AdditionalCheckingWhenReadingList(IQueryable<DisciplineBlock> query, DisciplineBlockGetBindingModel model) => query;

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

		protected override void AdditionalDeleting(DbContext context, DisciplineBlock entity, DisciplineBlockGetBindingModel model) { }

		protected override DisciplineBlock GetUniqueEntity(DisciplineBlockSetBindingModel model, DbContext context) => context.Set<DisciplineBlock>().FirstOrDefault(x => x.Title == model.Title && x.Id != model.Id);

		protected override IQueryable<DisciplineBlock> IncludingWhenReading(IQueryable<DisciplineBlock> query) => query;

		protected override IQueryable<DisciplineBlock> OrderingWhenReading(IQueryable<DisciplineBlock> query) => query.OrderBy(x => x.DisciplineBlockOrder);
	}
}