144 lines
4.9 KiB
C#
144 lines
4.9 KiB
C#
using SoftwareInstallationContracts.BindingModels;
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using SoftwareInstallationContracts.SearchModels;
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using SoftwareInstallationContracts.StoragesContracts;
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using SoftwareInstallationContracts.ViewModels;
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using SoftwareInstallationDatabaseImplement.Models;
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using SoftwareInstallationDataModels;
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using SoftwareInstallationDataModels.Models;
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using Microsoft.EntityFrameworkCore;
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namespace SoftwareInstallationDatabaseImplement
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{
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public class ShopStorage : IShopStorage
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{
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public ShopViewModel? Delete(ShopBindingModel model)
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{
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using var context = new SoftwareInstallationDatabase();
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var element = context.Shops.FirstOrDefault(x => x.Id == model.Id);
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if (element != null)
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{
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context.Shops.Remove(element);
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context.SaveChanges();
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return element.GetViewModel;
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}
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return null;
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}
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public ShopViewModel? GetElement(ShopSearchModel model)
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{
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if (!model.Id.HasValue)
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{
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return null;
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}
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using var context = new SoftwareInstallationDatabase();
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return context.Shops
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.Include(x => x.ShopPackages)
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.ThenInclude(x => x.Package)
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.FirstOrDefault(x => model.Id.HasValue && x.Id == model.Id)
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?.GetViewModel;
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}
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public List<ShopViewModel> GetFilteredList(ShopSearchModel model)
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{
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if (string.IsNullOrEmpty(model.Name))
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{
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return new();
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}
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using var context = new SoftwareInstallationDatabase();
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return context.Shops
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.Include(x => x.ShopPackages)
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.ThenInclude(x => x.Package)
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.Select(x => x.GetViewModel)
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.Where(x => x.Name.Contains(model.Name ?? string.Empty))
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.ToList();
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}
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public List<ShopViewModel> GetFullList()
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{
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using var context = new SoftwareInstallationDatabase();
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return context.Shops
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.Include(x => x.ShopPackages)
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.ThenInclude(x => x.Package)
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.Select(shop => shop.GetViewModel)
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.ToList();
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}
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public ShopViewModel? Insert(ShopBindingModel model)
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{
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using var context = new SoftwareInstallationDatabase();
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using var transaction = context.Database.BeginTransaction();
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try
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{
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var newShop = Shop.Create(context, model);
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if (newShop == null)
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{
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return null;
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}
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if (context.Shops.Any(x => x.Name == newShop.Name))
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{
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throw new Exception("Не должно быть два магазина с одним названием");
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}
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context.Shops.Add(newShop);
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context.SaveChanges();
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transaction.Commit();
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return newShop.GetViewModel;
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}
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catch
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{
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transaction.Rollback();
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throw;
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}
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}
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public ShopViewModel? Update(ShopBindingModel model)
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{
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using var context = new SoftwareInstallationDatabase();
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var shop = context.Shops.FirstOrDefault(x => x.Id == model.Id);
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if (shop == null)
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{
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return null;
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}
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shop.Update(model);
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shop.UpdatePackages(context, model);
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context.SaveChanges();
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return shop.GetViewModel;
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}
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public bool HasNeedPackages(IPackageModel package, int needCount)
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{
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throw new NotImplementedException();
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}
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public bool SellPackages(IPackageModel package, int needCount)
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{
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using var context = new SoftwareInstallationDatabase();
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using var transaction = context.Database.BeginTransaction();
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foreach (var sp in context.ShopPackages.Where(x => x.PackageId == package.Id))
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{
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var res = Math.Min(needCount, sp.Count);
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sp.Count -= res;
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needCount -= res;
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if (sp.Count == 0) // Изделия больше нет в магазине, значит удаляем его
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{
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context.ShopPackages.Remove(sp);
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}
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if (needCount == 0) // Нельзя коммитить изменения в цикле, что использует контекст, поэтому выходим
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{
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break;
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}
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}
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if (needCount == 0)
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{
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context.SaveChanges();
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transaction.Commit();
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}
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else
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{
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transaction.Rollback();
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}
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return needCount == 0;
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}
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}
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}
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