PIbd-22_Smirnov_A.A._SecuritySystem/SecuritySystem/SecuritySystemDatabaseImplement/Implements/SecureStorage.cs

using SecuritySystemContracts.BindingModels;
using SecuritySystemContracts.SearchModels;
using SecuritySystemContracts.StoragesContracts;
using SecuritySystemContracts.ViewModels;
using SecuritySystemDatabaseImplement.Models;
using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SecuritySystemDatabaseImplement.Implements
{
    public class SecureStorage : ISecureStorage
    {
        public List<SecureViewModel> GetFullList()
        {
            using var context = new SecuritySystemDatabase();

            return context.Secures
                    .Include(x => x.Sensors)
                    .ThenInclude(x => x.Sensor)
                    .ToList()
                    .Select(x => x.GetViewModel)
                    .ToList();
        }

        public List<SecureViewModel> GetFilteredList(SecureSearchModel model)
        {
            if (string.IsNullOrEmpty(model.SecureName))
            {
                return new();
            }

            using var context = new SecuritySystemDatabase();

            return context.Secures
                    .Include(x => x.Sensors)
                    .ThenInclude(x => x.Sensor)
                    .Where(x => x.SecureName.Contains(model.SecureName))
                    .ToList()
                    .Select(x => x.GetViewModel)
                    .ToList();
        }

        public SecureViewModel? GetElement(SecureSearchModel model)
        {
            if (string.IsNullOrEmpty(model.SecureName) && !model.Id.HasValue)
            {
                return null;
            }

            using var context = new SecuritySystemDatabase();

            return context.Secures
                .Include(x => x.Sensors)
                .ThenInclude(x => x.Sensor)
                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.SecureName) && x.SecureName == model.SecureName) ||
                                (model.Id.HasValue && x.Id == model.Id))
                ?.GetViewModel;
        }

        public SecureViewModel? Insert(SecureBindingModel model)
        {
            using var context = new SecuritySystemDatabase();
            var newSecure = Secure.Create(context, model);

            if (newSecure == null)
            {
                return null;
            }

            context.Secures.Add(newSecure);
            context.SaveChanges();

            return newSecure.GetViewModel;
        }

        public SecureViewModel? Update(SecureBindingModel model)
        {
            using var context = new SecuritySystemDatabase();
            using var transaction = context.Database.BeginTransaction();

            try
            {
                var secure = context.Secures.FirstOrDefault(rec => rec.Id == model.Id);

                if (secure == null)
                {
                    return null;
                }

                secure.Update(model);
                context.SaveChanges();
                secure.UpdateSensors(context, model);
                transaction.Commit();

                return secure.GetViewModel;
            }
            catch
            {
                transaction.Rollback();
                throw;
            }
        }

        public SecureViewModel? Delete(SecureBindingModel model)
        {
            using var context = new SecuritySystemDatabase();
            var element = context.Secures
                .Include(x => x.Sensors)
                .Include(x => x.Orders)
                .FirstOrDefault(rec => rec.Id == model.Id);

            if (element != null)
            {
                context.Secures.Remove(element);
                context.SaveChanges();

                return element.GetViewModel;
            }

            return null;
        }
    }
}