Pibd-22_Morozov_V.S_AutomobilePlant/AutomobilePlant/AutomobilePlantDataBaseImplements/Implements/ClientStorage.cs

using AutomobilePlantContracts.BindingModels;
using AutomobilePlantContracts.SearchModel;
using AutomobilePlantContracts.StoragesContracts;
using AutomobilePlantContracts.ViewModel;
using AutomobilePlantDataBaseImplements.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AutomobilePlantDataBaseImplements.Implements
{
    public class ClientStorage : IClientStorage
    {
        public List<ClientViewModel> GetFullList()
        {
            using var context = new AutoPlantDataBase();
            return context.Clients
                    .Select(x => x.GetViewModel)
                    .ToList();
        }

        public List<ClientViewModel> GetFilteredList(ClientSearchModel model)
        {
            if (string.IsNullOrEmpty(model.ClientFIO) && string.IsNullOrEmpty(model.Email) && string.IsNullOrEmpty(model.Password))
            {
                return new();
            }
            using var context = new AutoPlantDataBase();
            if (!string.IsNullOrEmpty(model.ClientFIO))
            {
                return context.Clients
                    .Where(x => x.ClientFIO.Contains(model.ClientFIO))
                    .Select(x => x.GetViewModel)
                    .ToList();
            }else if (!string.IsNullOrEmpty(model.Email))
            {
                return context.Clients
                    .Where(x => x.Email.Contains(model.Email))
                    .Select(x => x.GetViewModel)
                    .ToList();
            }
            return context.Clients
                    .Where(x => x.Password.Contains(model.Password))
                    .Select(x => x.GetViewModel)
                    .ToList();

        }

        public ClientViewModel? GetElement(ClientSearchModel model)
        {
            if (string.IsNullOrEmpty(model.Email) && !model.Id.HasValue)
            {
                return null;
            }
            using var context = new AutoPlantDataBase();
            return context.Clients
                    .FirstOrDefault(x => (!string.IsNullOrEmpty(model.Email) && x.Email == model.Email) ||
                                        (model.Id.HasValue && x.Id == model.Id))
                    ?.GetViewModel;
        }

        public ClientViewModel? Insert(ClientBindingModel model)
        {
            var newClient = Client.Create(model);
            if (newClient == null)
            {
                return null;
            }
            using var context = new AutoPlantDataBase();
            context.Clients.Add(newClient);
            context.SaveChanges();
            return newClient.GetViewModel;
        }

        public ClientViewModel? Update(ClientBindingModel model)
        {
            using var context = new AutoPlantDataBase();
            var client = context.Clients.FirstOrDefault(x => x.Id == model.Id);
            if (client == null)
            {
                return null;
            }
            client.Update(model);
            context.SaveChanges();
            return client.GetViewModel;
        }

        public ClientViewModel? Delete(ClientBindingModel model)
        {
            using var context = new AutoPlantDataBase();
            var element = context.Clients.FirstOrDefault(rec => rec.Id == model.Id);
            if (element != null)
            {
                context.Clients.Remove(element);
                context.SaveChanges();
                return element.GetViewModel;
            }
            return null;
        }
    }
}