PIbd-21_Markov_D.P._LawFirm/LawFirm/LawFirmBusinessLogic/BusinessLogics/OrderLogic.cs

using DocumentFormat.OpenXml.EMMA;
using LawFirmBusinessLogic.MailWorker;
using LawFirmContracts.BindingModels;
using LawFirmContracts.BusinessLogicsContracts;
using LawFirmContracts.SearchModels;
using LawFirmContracts.StoragesContracts;
using LawFirmContracts.ViewModels;
using LawFirmDataModels.Enums;
using Microsoft.Extensions.Logging;
using static Org.BouncyCastle.Crypto.Engines.SM2Engine;

namespace LawFirmBusinessLogic.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 bool CreateOrder(OrderBindingModel model)
        {
            CheckModel(model);
            if (model.Status != OrderStatus.Неизвестен)
            {
                _logger.LogWarning("Insert operation failed. Order status incorrect.");
                return false;
            }
            model.Status = OrderStatus.Принят;
			var result = _orderStorage.Insert(model);
			if (result == null)
			{
				_logger.LogWarning("Insert operation failed");
				return false;
			}
			SendOrderStatusMail(result.ClientId, $"Новый заказ создан. Номер заказа #{result.Id}", $"Заказ #{result.Id} от {result.DateCreate} на сумму {result.Sum:0.00} принят");
			return true;
        }
        public bool StatusUpdate(OrderBindingModel model, OrderStatus newStatus)
        {
			var viewModel = _orderStorage.GetElement(new() { Id = model.Id });
			if (viewModel == null)
			{
				throw new ArgumentNullException(nameof(model));
			}
			if ((int)viewModel.Status + 1 != (int)newStatus)
			{
				throw new InvalidOperationException($"Попытка перевести заказ не в следующий статус");
			}
			model.Status = newStatus;
			model.DateCreate = viewModel.DateCreate;
			if (model.DateImplement == null)
				model.DateImplement = viewModel.DateImplement;
			if (viewModel.ImplementerId.HasValue)
				model.ImplementerId = viewModel.ImplementerId;
			model.DocumentId = viewModel.DocumentId;
			model.Sum = viewModel.Sum;
			model.Count = viewModel.Count;
			CheckModel(model);
			var result = _orderStorage.Update(model);
			if (result == null)
			{
				_logger.LogWarning("Update operation failed");
				return false;
			}
			SendOrderStatusMail(result.ClientId, $"Изменен статус заказа #{result.Id}", $"Заказ #{model.Id} изменен статус на {result.Status}");
			return true;
		}
        public bool DeliveryOrder(OrderBindingModel model)
        {
            return StatusUpdate(model, OrderStatus.Выдан);
        }

        public bool FinishOrder(OrderBindingModel model)
        {
            return StatusUpdate(model, OrderStatus.Готов);
        }
        public bool TakeOrderInWork(OrderBindingModel model)
        {
            return StatusUpdate(model, OrderStatus.Выполняется);
        }
        public List<OrderViewModel>? 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;
		}
		private void CheckModel(OrderBindingModel model, bool withParams = true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            if (!withParams)
            {
                return;
            }
            if(model.DocumentId < 0)
            {
                throw new ArgumentNullException("Некорректный идентификатор документа",
                    nameof(model.DocumentId));
            }
            if (model.Count <= 0)
            {
                throw new ArgumentNullException("Количество документов 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));
            }
        }
		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;
		}
	}
}