using FurnitureAssembly_WorkerContracts.BindingModels;
using FurnitureAssembly_WorkerContracts.BusinessLogicContracts;
using FurnitureAssembly_WorkerContracts.SearchModels;
using FurnitureAssembly_WorkerContracts.StorageContracts;
using FurnitureAssembly_WorkerContracts.ViewModels;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace FurnitureAssembly_WorkerBusinessLogic.BusinessLogics
{
	public class OrderLogic : IOrderLogic
	{
		private readonly ILogger _logger;
		private readonly IOrderStorage _orderStorage;
		public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage)
		{
			_logger = logger;
			_orderStorage = orderStorage;
		}
		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. OrderId:{ 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 Create(OrderBindingModel model)
		{
			CheckModel(model);
			if (_orderStorage.Insert(model) == null)
			{
				_logger.LogWarning("Insert operation failed");
				return false;
			}
			return true;
		}
		public bool Update(OrderBindingModel model)
		{
			CheckModel(model);
			if (_orderStorage.Update(model) == null)
			{
				_logger.LogWarning("Update operation failed");
				return false;
			}
			return true;
		}
		public bool Delete(OrderBindingModel model)
		{
			CheckModel(model, false);
			_logger.LogInformation("Delete. Id:{Id}", model.Id);
			if (_orderStorage.Delete(model) == null)
			{
				_logger.LogWarning("Delete operation failed");
				return false;
			}
			return true;
		}
		private void CheckModel(OrderBindingModel model, bool withParams = true)
		{
			if (model == null)
			{
				throw new ArgumentNullException(nameof(model));
			}
			if (!withParams)
			{
				return;
			}
			if (model.SetId < 0)
			{
				throw new ArgumentNullException("Некорректный идентификатор гарнитура", nameof(model.SetId));
			}
			if (model.Sum < 0)
			{
				throw new ArgumentNullException("Сумма заказа должна быть больше 0", nameof(model.Sum));
			}
			_logger.LogInformation("Order. Id: {Id}. SetId: {SetId}", model.Id, model.SetId);
		}
	}
}
