134 lines
4.4 KiB
C#
134 lines
4.4 KiB
C#
using FlowerShopContracts.BindingModels;
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using FlowerShopContracts.SearchModels;
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using FlowerShopContracts.StoragesContracts;
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using FlowerShopContracts.ViewModels;
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using FlowerShopDataModels.Models;
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using FlowerShopFileImplement.Implements;
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using FlowerShopFileImplement.Models;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace FlowerShopFileImplement.Implements
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{
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public class ShopStorage : IShopStorage
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{
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private readonly DataFileSingleton _source;
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public ShopStorage()
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{
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_source = DataFileSingleton.GetInstance();
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}
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public List<ShopViewModel> GetFullList()
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{
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return _source.Shops
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.Select(x => x.GetViewModel)
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.ToList();
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}
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public List<ShopViewModel> GetFilteredList(ShopSearchModel
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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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return _source.Shops
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.Where(x => x.ShopName.Contains(model.Name))
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.Select(x => x.GetViewModel)
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.ToList(); ;
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}
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public ShopViewModel? GetElement(ShopSearchModel model)
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{
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if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue)
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{
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return null;
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}
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return _source.Shops
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.FirstOrDefault(x =>
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(!string.IsNullOrEmpty(model.Name) && x.ShopName == model.Name) ||
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(model.Id.HasValue && x.Id == model.Id))
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?.GetViewModel;
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}
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public ShopViewModel? Insert(ShopBindingModel model)
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{
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model.Id = _source.Shops.Count > 0 ? _source.Shops.Max(x => x.Id) + 1 : 1;
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var newShop = Shop.Create(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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_source.Shops.Add(newShop);
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_source.SaveShops();
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return newShop.GetViewModel;
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}
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public ShopViewModel? Update(ShopBindingModel model)
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{
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var component = _source.Shops.FirstOrDefault(x => x.Id == model.Id);
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if (component == null)
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{
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return null;
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}
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component.Update(model);
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_source.SaveShops();
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return component.GetViewModel;
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}
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public ShopViewModel? Delete(ShopBindingModel model)
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{
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var element = _source.Shops.FirstOrDefault(x => x.Id == model.Id);
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if (element != null)
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{
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_source.Shops.Remove(element);
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_source.SaveShops();
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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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//проверка наполненности магазинов
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public bool CheckAvailability(int flowerId, int count)
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{
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count -= _source.Shops.Select(x => x.ShopFlowers.Select(y => (y.Value.Item1.Id == flowerId ? y.Value.Item2 : 0)).Sum()).Sum();
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return count <= 0;
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}
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//логика продажи
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public bool SellFlowers(IFlowerModel model, int count)
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{
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var flower = _source.Flowers.FirstOrDefault(x => x.Id == model.Id);
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if (flower == null || !CheckAvailability(flower.Id, count))
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{
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return false;
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}
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for (int i = 0; i < _source.Shops.Count; i++)
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{
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var shop = _source.Shops[i];
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var flowers = shop.ShopFlowers;
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foreach (var flowerr in flowers.Where(x => x.Value.Item1.Id == flower.Id))
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{
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var min = Math.Min(flowerr.Value.Item2, count);
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flowers[flowerr.Value.Item1.Id] = (flowerr.Value.Item1, flowerr.Value.Item2 - min);
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count -= min;
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if (count <= 0)
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{
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break;
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}
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}
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shop.Update(new ShopBindingModel
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{
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Id = shop.Id,
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ShopName = shop.ShopName,
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Address = shop.Address,
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DateOpen = shop.DateOpen,
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MaxCapacity = shop.MaxCapacity,
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ShopFlowers = flowers
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});
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}
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_source.SaveShops();
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return true;
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}
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}
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}
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