Pibd-21_Ievlewa_MD._PrecastConcretePlant/PrecastConcretePlant/PrecastConcretePlantBusinessLogic/BusinessLogic/OrderLogic.cs

using Microsoft.Extensions.Logging;
using PrecastConcretePlantBusinessLogic.MailWorker;
using PrecastConcretePlantContracts.BindingModels;
using PrecastConcretePlantContracts.BusinessLogicsContracts;
using PrecastConcretePlantContracts.SearchModels;
using PrecastConcretePlantContracts.StoragesContracts;
using PrecastConcretePlantContracts.ViewModels;
using PrecastConcretePlantDataModels.Enums;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace PrecastConcretePlantBusinessLogic.BusinessLogics
{
	public class OrderLogic : IOrderLogic
	{
		private readonly ILogger _logger;
		private readonly IOrderStorage _orderStorage;
		private readonly AbstractMailWorker _mailWorker;
		private readonly IClientLogic _clientLogic;
		public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage, AbstractMailWorker mailWorker, IClientLogic clientLogic)
		{
			_logger = logger;
			_orderStorage = orderStorage;
			_mailWorker = mailWorker;
			_clientLogic = clientLogic;
		}
		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 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 CreateOrder(OrderBindingModel model)
		{
			CheckModel(model);
			if (model.Status != OrderStatus.Неизвестен)
			{
				_logger.LogWarning("Invalid order status");
				return false;
			}
			model.Status = OrderStatus.Принят;
			var result = _orderStorage.Insert(model);
			if (result == null)
			{
				model.Status = OrderStatus.Неизвестен;
				_logger.LogWarning("Insert operation failed");
				return false;
			}
			SendOrderStatusMail(result.ClientId, $"Новый заказ создан. Номер заказа #{result.Id}", $"Заказ #{result.Id} от {result.DateCreate} на сумму {result.Sum:0.00} принят");
			return true;
		}
		private bool StatusUpdate(OrderBindingModel model, OrderStatus newStatus)
		{
			var viewModel = _orderStorage.GetElement(new OrderSearchModel { Id = model.Id });
			if (viewModel == null)
			{
				throw new ArgumentNullException(nameof(model));
			}
			if (viewModel.Status + 1 != newStatus)
			{
				_logger.LogWarning("Change status operation failed");
				throw new InvalidOperationException();
			}
			model.Status = newStatus;
			if (model.Status == OrderStatus.Готов)
			{
				model.DateImplement = DateTime.Now;
			}
			else
			{
				model.DateImplement = viewModel.DateImplement;
			}
			if (viewModel.ImplementerId.HasValue)
			{
				model.ImplementerId = viewModel.ImplementerId.Value;
			}
			CheckModel(model, false);
			var result = _orderStorage.Update(model);
			if (result == null)
			{
				_logger.LogWarning("Update operation failed");
				return false;
			}
			//Отсылка письма при изменении статуса
			SendOrderStatusMail(result.ClientId, $"Изменен статус заказа #{result.Id}", $"Заказ #{model.Id} изменен статус на {result.Status}");
			return true;
		}
		public bool TakeOrderInWork(OrderBindingModel model)
		{
			return StatusUpdate(model, OrderStatus.Выполняется);
		}
		public bool FinishOrder(OrderBindingModel model)
		{
			model.DateImplement = DateTime.Now;
			return StatusUpdate(model, OrderStatus.Готов);
		}
		public bool DeliveryOrder(OrderBindingModel model)
		{

			return StatusUpdate(model, OrderStatus.Выдан);
		}
		private void CheckModel(OrderBindingModel model, bool withParams = true)
		{
			if (model == null)
			{
				throw new ArgumentNullException(nameof(model));
			}
			if (!withParams)
			{
				return;
			}
			if (model.Sum <= 0)
			{
				throw new ArgumentNullException("Стоимость должна быть больше 0", nameof(model.Sum));
			}
			_logger.LogInformation("Order. Id: {Id}. Sum: {Sum}. ReinforcedId: {ReinforcedId}", model.Id, model.Sum, model.ReinforcedId);
			var element = _orderStorage.GetElement(new OrderSearchModel { Id = model.Id });
			if (element != null && element.Id == model.Id)
			{
				throw new InvalidOperationException("Заказ с таким номером уже есть");
			}
		}
		private bool SendOrderStatusMail(int clientId, string subject, string text)
		{
			var client = _clientLogic.ReadElement(new() { Id = clientId });
			if (client == null)
			{
				return false;
			}
			_mailWorker.MailSendAsync(new()
			{
				MailAddress = client.Email,
				Subject = subject,
				Text = text
			});
			return true;
		}
	}
}