PIbd-22_Romanov_E.V._SecuritySystem/SecuritySystemDatabaseImplement/Implements/SecureStorage.cs

using SecuritySystemContracts.BindingModels;
using SecuritySystemContracts.SearchModels;
using SecuritySystemContracts.StoragesContracts;
using SecuritySystemContracts.ViewModels;
using SecuritySystemDatabaseImplement.Models;
using Microsoft.EntityFrameworkCore;
namespace SecuritySystemDatabaseImplement.Implements
{
    public class SecureStorage : ISecureStorage
    {
        public List<SecureViewModel> GetFullList()
        {
            using var context = new SecuritySystemDatabase();
            return context.Secures.Include(x => x.Components).ThenInclude(x => x.Component).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.Components).ThenInclude(x => x.Component).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.Components).ThenInclude(x => x.Component)
            .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.UpdateComponents(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.Components).FirstOrDefault(rec => rec.Id == model.Id);
            if (element != null)
            {
                context.Secures.Remove(element);
                context.SaveChanges();
                return element.GetViewModel;
            }
            return null;
        }
    }
}