PIbd-22_Kamcharova_K.A_RenovationWork/RenovationWorkBusinessLogic/BusinessLogics/OrderLogic.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using RenovationWorkContracts.BindingModels;
using RenovationWorkContracts.BusinessLogicsContracts;
using RenovationWorkContracts.SearchModels;
using RenovationWorkContracts.StoragesContracts;
using RenovationWorkContracts.ViewModels;
using RenovationWorkDataModels.Enums;
using Microsoft.Extensions.Logging;
using RenovationWorkBusinessLogic.MailWorker;

namespace RenovationWorkBusinessLogic.BusinessLogics
{
    public class OrderLogic : IOrderLogic
    {
        private readonly ILogger _logger;
        private readonly IOrderStorage _orderStorage;
		private readonly AbstractMailWorker _mailWorker;
		private readonly IClientLogic _clientLogic;
		static readonly object locker = new object();
		public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage,
			AbstractMailWorker mailWorker, IClientLogic clientLogic)
		{
            _orderStorage = orderStorage;
			_logger = logger;
			_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 res = _orderStorage.Insert(model);
			if (res == null)
			{
				_logger.LogWarning("Insert operation failed");
				return false;
			}
			SendOrderStatusMail(res.ClientId, $"Изменен статус заказа #{res.Id}", $"Заказ #{res.Id} изменен статус на {model.Status}");
			return true;
		}
		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;
		}
		public bool StatusUpdate(OrderBindingModel model, OrderStatus newStatus)
        {
            CheckModel(model, false);
            var element = _orderStorage.GetElement(new OrderSearchModel { Id = model.Id });
            if (element == null)
            {
                _logger.LogWarning("Read operation failed");
                return false;
            }
            if (element.Status != newStatus - 1)
            {
                _logger.LogWarning("Status change operation failed");
                throw new InvalidOperationException("Текущий статус заказа не может быть переведен в выбранный");
            }
            model.Status = newStatus;
            if (model.Status == OrderStatus.Выдан)
                model.DateImplement = DateTime.Now;
            if (element.ImplementerId.HasValue)
                model.ImplementerId = element.ImplementerId;
			var result = _orderStorage.Update(model);
			if (result == null)
			{
				_logger.LogWarning("Update operation failed");
				return false;
			}
			SendOrderStatusMail(result.ClientId, $"Изменен статус заказа #{result.Id}", $"Заказ #{result.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)
        {
            lock (locker)
            {
                return StatusUpdate(model, OrderStatus.Выполняется);
            }
        }
        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 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;
        }
        private void CheckModel(OrderBindingModel model, bool withParams = true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            if (!withParams)
            {
                return;
            }
            if (model.RepairId < 0)
            {
                throw new ArgumentNullException("Некорректный идентификатор документа", nameof(model.RepairId));
            }
            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. Count: {Count}. Sum: {Sum}. Id: {Id}", model.Count, model.Sum, model.Id);
        }
    }
}