using BarContracts.BindingModels;
using BarContracts.BusinessLogicsContracts;
using BarContracts.SearchModels;
using BarContracts.StoragesContracts;
using BarContracts.ViewModels;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace BarBusinessLogic.BusinessLogics
{
	public class MessageInfoLogic : IMessageInfoLogic
	{
		private readonly ILogger _logger;

		private readonly IMessageInfoStorage _messageStorage;

		private readonly IClientStorage _clientStorage;

		public MessageInfoLogic(IMessageInfoStorage messageStorage, ILogger<MessageInfoLogic> logger, IClientStorage clientStorage)
		{
			_messageStorage = messageStorage;
			_logger = logger;
			_clientStorage = clientStorage;
		}
		public bool Create(MessageInfoBindingModel model)
		{
			CheckModel(model);

			if (_messageStorage.Insert(model) == null)
			{
				_logger.LogWarning("Insert operation failed");
				return false;
			}
			return true;
		}

		public List<MessageInfoViewModel>? ReadList(MessageInfoSearchModel? model)
		{
			_logger.LogInformation("ReadList. ClientID:{ClientID}. ID:{ ID}", model?.ClientId, model?.MessageId);

			var list = model == null ? _messageStorage.GetFullList() : _messageStorage.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(MessageInfoBindingModel model, bool withParams = true)
		{
			if (model == null)
			{
				throw new ArgumentNullException(nameof(model));
			}
			if (!withParams)
			{
				return;
			}
			if (string.IsNullOrEmpty(model.MessageId))
			{
				throw new ArgumentNullException("Не указан id сообщения", nameof(model.MessageId));
			}
			if (string.IsNullOrEmpty(model.SenderName))
			{
				throw new ArgumentNullException("Не указана почта", nameof(model.SenderName));
			}
			if (string.IsNullOrEmpty(model.Subject))
			{
				throw new ArgumentNullException("Не указана тема", nameof(model.Subject));
			}
			if (string.IsNullOrEmpty(model.Body))
			{
				throw new ArgumentNullException("Не указан текст сообщения", nameof(model.Subject));
			}

			_logger.LogInformation("MessageInfo. MessageId:{MessageId}.SenderName:{SenderName}.Subject:{Subject}.Body:{Body}", model.MessageId, model.SenderName, model.Subject, model.Body);
			var element = _clientStorage.GetElement(new ClientSearchModel
			{
				Email = model.SenderName
			});
			if (element == null)
			{
				_logger.LogWarning("Не удалось найти клиента, отправившего письмо с адреса Email:{Email}", model.SenderName);
			}
			else
			{
				model.ClientId = element.Id;
			}
		}

	}
}