PIbd-21_Bakalskaya_E.D._Sus.../SushiBarFileImplement/Implements/ShopStorage.cs

126 lines
4.1 KiB
C#

using SushiBarContracts.BindingModel;
using SushiBarContracts.SearchModel;
using SushiBarContracts.StoragesContracts;
using SushiBarContracts.ViewModels;
using SushiBarDataModels.Models;
using SushiBarFileImplement.Models;
namespace SushiBarFileImplement.Implements
{
public class ShopStorage : IShopStorage
{
private readonly DataFileSingleton _source;
public ShopStorage()
{
_source = DataFileSingleton.GetInstance();
}
public List<ShopViewModel> GetFullList()
{
return _source.Shops.Select(x => x.GetViewModel).ToList();
}
public List<ShopViewModel> GetFilteredList(ShopSearchModel model)
{
if (string.IsNullOrEmpty(model.ShopName))
{
return new();
}
return _source.Shops.Where(x => x.ShopName.Contains(model.ShopName)).Select(x => x.GetViewModel).ToList();
}
public ShopViewModel? GetElement(ShopSearchModel model)
{
if (string.IsNullOrEmpty(model.ShopName) && !model.Id.HasValue)
{
return null;
}
return _source.Shops.FirstOrDefault(x => (!string.IsNullOrEmpty(model.ShopName) && x.ShopName == model.ShopName) || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
}
public ShopViewModel? Insert(ShopBindingModel model)
{
model.Id = _source.Shops.Count > 0 ? _source.Shops.Max(x => x.Id) + 1 : 1;
var newShop = Shop.Create(model);
if (newShop == null)
{
return null;
}
_source.Shops.Add(newShop);
_source.SaveShops();
return newShop.GetViewModel;
}
public ShopViewModel? Update(ShopBindingModel model)
{
var component = _source.Shops.FirstOrDefault(x => x.Id == model.Id);
if (component == null)
{
return null;
}
component.Update(model);
_source.SaveShops();
return component.GetViewModel;
}
public ShopViewModel? Delete(ShopBindingModel model)
{
var element = _source.Shops.FirstOrDefault(x => x.Id == model.Id);
if (element != null)
{
_source.Shops.Remove(element);
_source.SaveShops();
return element.GetViewModel;
}
return null;
}
public bool CheckCountSushi(ISushiModel model, int count)
{
int store = _source.Shops.Select(x => x.ShopSushis.Select(y =>
(y.Value.Item1.Id == model.Id ? y.Value.Item2 : 0)).Sum()).Sum();
return store >= count;
}
public bool SellSushis(ISushiModel model, int count)
{
var sushi = _source.Sushis.FirstOrDefault(x => x.Id == model.Id);
if (sushi == null || !CheckCountSushi(model, count))
{
throw new ArgumentNullException("Такого количества суш нет, продать столько низя ");
}
foreach (var shop in _source.Shops)
{
var sushis = shop.ShopSushis;
foreach (var elem in sushis.Where(x => x.Value.Item1.Id == sushi.Id))
{
var selling = Math.Min(elem.Value.Item2, count);
sushis[elem.Value.Item1.Id] = (elem.Value.Item1, elem.Value.Item2 - selling);
count -= selling;
if (count <= 0)
{
break;
}
}
shop.Update(new ShopBindingModel
{
Id = model.Id,
ShopName = shop.ShopName,
Address = shop.Address,
DateOpening = shop.DateOpening,
ShopSushis = sushis,
MaxCountSushis = shop.MaxCountSushis
});
}
_source.SaveShops();
return true;
}
}
}