PIbd-21_RazubaevSM_PlumbingRepair_Base/PlumbingRepair/PlumbingRepairBusinessLogic/BusinessLogics/OrderLogic.cs

using PlumbingRepairContracts.BindingModels;
using PlumbingRepairContracts.BusinessLogicsContracts;
using PlumbingRepairContracts.SearchModels;
using PlumbingRepairContracts.ViewModels;
using PlumbingRepairContracts.StoragesContracts;
using PlumbingRepairDataModels.Enums;
using Microsoft.Extensions.Logging;
using System.Xml.Linq;


namespace PlumbingRepairBusinessLogic.BusinessLogics
{
    public class OrderLogic : IOrderLogic
    {
        private readonly ILogger _logger;

        private readonly IOrderStorage _orderStorage;
        private readonly IShopStorage _shopStorage;
        private readonly IWorkStorage _workStorage;
        private readonly IShopLogic _shopLogic;
		static readonly object _locker = new object();
		public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage, IShopStorage shopStorage, IWorkStorage workStorage, IShopLogic shopLogic)
        {
            _logger = logger;
            _orderStorage = orderStorage;
            _shopStorage = shopStorage;
            _workStorage = workStorage;
            _shopLogic = shopLogic;
        }

        public OrderViewModel? ReadElement(OrderSearchModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            _logger.LogInformation("ReadElement. DateFrom:{DateFrom}.DateTo:{DateTo}. Id:{Id}", model.DateFrom, model.DateTo, 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 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 bool DeliveryOrder(OrderBindingModel model)
        {
            return ChangeStatus(model, OrderStatus.Выдан);
        }

        public bool FinishOrder(OrderBindingModel model)
        {
            return ChangeStatus(model, OrderStatus.Готов);
        }

        public List<OrderViewModel>? ReadList(OrderSearchModel? model)
        {
            _logger.LogInformation("ReadList. Id:{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 bool TakeOrderInWork(OrderBindingModel model)
        {
            lock (_locker)
            {
                return ChangeStatus(model, OrderStatus.Выполняется);
            }
        }
        public bool ChangeStatus(OrderBindingModel model, OrderStatus newStatus)
        {
            CheckModel(model, false);
            var viewModel = _orderStorage.GetElement(new OrderSearchModel { Id = model.Id });
            if (viewModel == null)
            {
                _logger.LogWarning("Find order failed");
                return false;
            }
            if (viewModel.Status != newStatus - 1 && viewModel.Status != OrderStatus.Ожидание)
            {
                _logger.LogWarning("Status change failed");
                throw new InvalidOperationException("Невозможно перевести состояние заказа");
            }
			if (viewModel.ImplementerId != null)
				viewModel.ImplementerId = model.ImplementerId;
			model.Status = newStatus;
			if (model.WorkId == 0)
				model.WorkId = viewModel.WorkId;
			if (model.Count == 0)
				model.Count = viewModel.Count;
			if (newStatus == OrderStatus.Готов)
			{
				var work = _workStorage.GetElement(new WorkSearchModel { Id = model.WorkId });
				if (work == null)
				{
					_logger.LogWarning("Status change operation failed. Work not found.");
					return false;
				}

				if (!_shopLogic.CheckAndSupply(work, model.Count))
				{
					_logger.LogWarning("Status change operation failed. Shop supply error.");
					model.Status = OrderStatus.Ожидание;
					if (_orderStorage.Update(model) == null)
						_logger.LogWarning("Update operation failed");
					return false;
				}

			}
			_orderStorage.Update(model);
            return true;
        }
        private void CheckModel(OrderBindingModel model, bool withParams = true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }

            if (!withParams)
            {
                return;
            }

            if (model.WorkId < 0)
            {
                throw new ArgumentNullException("Некорректный идентификатор работы", nameof(model.WorkId));
            }

            if (model.Count <= 0)
            {
                throw new ArgumentNullException("Количество работ в заказе должно быть больше 0", nameof(model.Count));
            }

            if (model.Sum <= 0)
            {
                throw new ArgumentNullException("Сумма заказа должна быть больше 0", nameof(model.Sum));
            }

            _logger.LogInformation("Order. OrderId:{Id}. Sum:{Sum}. WorkId: {WorkId}", model.Id, model.Sum, model.WorkId);
        }
    }
}