using IceCreamShopContracts.BindingModels; using IceCreamShopContracts.BusinessLogicsContracts; using IceCreamShopContracts.SearchModels; using IceCreamShopContracts.StoragesContracts; using IceCreamShopContracts.ViewModels; using IceCreamShopDataModels.Enums; using IceCreamShopDataModels.Models; using Microsoft.Extensions.Logging; using System.Xml.Linq; namespace IceCreamShopBusinessLogic.BusinessLogics { public class OrderLogic : IOrderLogic { private readonly ILogger _logger; private readonly IOrderStorage _orderStorage; private readonly IIceCreamStorage _iceCreamStorage; private readonly IShopStorage _shopStorage; private readonly IShopLogic _shopLogic; static readonly object locker = new(); public OrderLogic(ILogger logger, IOrderStorage orderStorage, IIceCreamStorage iceCreamStorage, IShopStorage shopStorage, IShopLogic shopLogic) { _logger = logger; _orderStorage = orderStorage; _iceCreamStorage = iceCreamStorage; _shopStorage = shopStorage; _shopLogic = shopLogic; } public bool CreateOrder(OrderBindingModel model) { CheckModel(model); if (model.Status != OrderStatus.Неизвестен) { _logger.LogWarning("Invalid order status"); return false; } model.Status = OrderStatus.Принят; if (_orderStorage.Insert(model) == null) { _logger.LogWarning("Insert operation failed"); return false; } return true; } public List? ReadList(OrderSearchModel? model) { _logger.LogInformation("ReadList. OrderId: {Id}.", model?.Id); var list = model == null ? _orderStorage.GetFullList() : _orderStorage.GetFilteredList(model); if (list == null) { _logger.LogWarning("ReadList return null list"); return null; } _logger.LogInformation("ReadList. Count: {Count}", list.Count); return list; } public OrderViewModel? ReadElement(OrderSearchModel model) { if (model == null) { throw new ArgumentNullException(nameof(model)); } _logger.LogInformation("ReadElement. Id: {Id}", model.Id); var element = _orderStorage.GetElement(model); if (element == null) { _logger.LogWarning("ReadElement element not found"); return null; } _logger.LogInformation("ReadElement find. Id:{Id}", element.Id); return element; } public bool TakeOrderInWork(OrderBindingModel model) { lock (locker) { return ChangeStatus(model, OrderStatus.Выполняется); } } public bool FinishOrder(OrderBindingModel model) { return ChangeStatus(model, OrderStatus.Готов); } public bool DeliveryOrder(OrderBindingModel model) { return ChangeStatus(model, OrderStatus.Выдан); } private void CheckModel(OrderBindingModel model, bool withParams = true) { if (model == null) { throw new ArgumentNullException(nameof(model)); } if (!withParams) { return; } if (model.IceCreamId <= 0) { throw new ArgumentNullException("Некорректный идентификатор мороженого", nameof(model.IceCreamId)); } if (model.ClientId <= 0) { throw new ArgumentNullException("Некорректный идентификатор клиента", nameof(model.ClientId)); } if (model.Count <= 0) { throw new ArgumentNullException("В заказе должно быть хотя бы одно мороженое", nameof(model.Count)); } if (model.Sum <= 0) { throw new ArgumentNullException("Стоимость заказа должна быть больше 0", nameof(model.Sum)); } _logger.LogInformation("Order. Id: {Id}. Sum: {Sum}. IceCreamId: {IceCreamId}. IceCreamCount: {Count}", model.Id, model.Sum, model.IceCreamId, model.Count); } private bool ChangeStatus(OrderBindingModel model, OrderStatus newStatus) { CheckModel(model, false); var order = _orderStorage.GetElement(new OrderSearchModel { Id = model.Id } ); if (order == null) { _logger.LogWarning("Change status operation failed. Order not found"); return false; } if ((order.Status + 1 != newStatus && order.Status != OrderStatus.Ожидание) || (order.Status == OrderStatus.Ожидание && newStatus != OrderStatus.Выдан)) { _logger.LogWarning("Change status operation failed"); return false; } if (order.ImplementerId.HasValue) { model.ImplementerId = order.ImplementerId; } if (newStatus == OrderStatus.Выдан) { var iceCream = _iceCreamStorage.GetElement(new IceCreamSearchModel() { Id = order.IceCreamId }); if (iceCream == null) { _logger.LogWarning("Change status operation failed. Ice cream not found"); return false; } if (!DeliverIceCreams(iceCream, order.Count)) { _logger.LogWarning("Change status operation failed. Ice creams delivery operation failed"); model.Status = OrderStatus.Ожидание; if (_orderStorage.Update(model) == null) { _logger.LogWarning("Update operation failed"); } return false; } } model.Status = newStatus; if (model.Status == OrderStatus.Выдан) { model.DateImplement = DateTime.Now; } else { model.DateImplement = order.DateImplement; } if (_orderStorage.Update(model) == null) { _logger.LogWarning("Change status operation failed"); return false; } return true; } private bool DeliverIceCreams(IIceCreamModel iceCream, int count) { if (count <= 0) { _logger.LogWarning("Ice creams delivery operation failed. Ice cream count <= 0"); return false; } var shopList = _shopStorage.GetFullList(); int shopsCapacity = shopList.Sum(x => x.IceCreamsMaximum); int currentIceCreams = shopList.Select(x => x.ShopIceCreams.Sum(y => y.Value.Item2)).Sum(); int freePlaces = shopsCapacity - currentIceCreams; if (freePlaces < count) { _logger.LogWarning("Ice creams delivery operation failed. No space for new ice creams"); return false; } foreach (var shop in shopList) { freePlaces = shop.IceCreamsMaximum - shop.ShopIceCreams.Sum(x => x.Value.Item2); if (freePlaces == 0) { continue; } if (freePlaces >= count) { if (_shopLogic.MakeShipment(new() { Id = shop.Id }, iceCream, count)) { count = 0; } else { _logger.LogWarning("Ice creams delivery operation failed"); return false; } } else { if (_shopLogic.MakeShipment(new() { Id = shop.Id }, iceCream, freePlaces)) { count -= freePlaces; } else { _logger.LogWarning("Ice creams delivery operation failed"); return false; } } if (count == 0) { return true; } } return false; } } }