using LawFimDataModels.Models;
using LawFirmContracts.BindingModels;
using LawFirmContracts.BusinessLogicContracts;
using LawFirmContracts.SearchModels;
using LawFirmContracts.StoragesContracts;
using LawFirmContracts.ViewModels;
using Microsoft.Extensions.Logging;

namespace LawFirmBusinessLogic.BusinessLogics
{
	public class ConsultationLogic : IConsultationLogic
	{
		private readonly ILogger _logger;
		private readonly IConsultationStorage _consultationStorage;

		public ConsultationLogic(ILogger<ConsultationLogic> logger, IConsultationStorage consultationStorage)
		{
			_logger = logger;
			_consultationStorage = consultationStorage;
		}

		public bool Create(ConsultationBindingModel model)
		{
			CheckModel(model);
			if (_consultationStorage.Insert(model) == null)
			{
				_logger.LogWarning("Insert operation failed");
				return false;
			}
			return true;
		}

		public bool Delete(ConsultationBindingModel model)
		{
			CheckModel(model, false);
			_logger.LogInformation("Delete. Id:{Id}", model.Id);
			if (_consultationStorage.Delete(model) == null)
			{
				_logger.LogWarning("Delete operation failed");
				return false;
			}
			return true;
		}

		public ConsultationViewModel? ReadElement(ConsultationSearchModel model)
		{
			if (model == null)
			{
				throw new ArgumentNullException(nameof(model));
			}
			_logger.LogInformation("ReadElement. ConsultationDate:{ConsultationDate}. Id:{Id}", model.ConsultationDate, model.Id);
			var element = _consultationStorage.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<ConsultationViewModel>? ReadList(ConsultationSearchModel? model)
		{
			_logger.LogInformation("ReadList. ConsultationDate:{ConsultationDate}.Id:{Id}", model?.ConsultationDate, model?.Id);
			var list = model == null ? _consultationStorage.GetFullList() : _consultationStorage.GetFilteredList(model);
			if (list == null)
			{
				_logger.LogWarning("ReadList return null list");
				return null;
			}
			_logger.LogInformation("ReadList. Count:{Count}", list.Count);
			return list;
		}

		public bool Update(ConsultationBindingModel model)
		{
			CheckModel(model);
			if (_consultationStorage.Update(model) == null)
			{
				_logger.LogWarning("Update operation failed");
				return false;
			}
			return true;
		}
		public bool AddLawyerToConsultation(ConsultationSearchModel model, ILawyerModel lawyer)
		{
			if (model == null)
			{
				throw new ArgumentNullException(nameof(model));
			}

			var element = _consultationStorage.GetElement(model);

			if (element == null)
			{
				return false;
			}

			element.ConsultationLawyers[lawyer.Id] = lawyer;

			_consultationStorage.Update(new()
			{
				Id = element.Id,
				Cost = element.Cost,
				ConsultationDate = element.ConsultationDate,
				CaseId = element.CaseId,
				ConsultationLawyers = element.ConsultationLawyers,
				GuarantorId = element.GuarantorId,
			});

			return true;
		}
		private void CheckModel(ConsultationBindingModel model, bool withParams = true)
		{
			if (model == null)
			{
				throw new ArgumentNullException(nameof(model));
			}
			if (!withParams)
			{
				return;
			}
			if (string.IsNullOrEmpty((model.ConsultationDate).ToString()))
			{
				throw new ArgumentNullException("Не поставлено время", nameof(model.ConsultationDate));
			}

			_logger.LogInformation("Consultation. ConsultationDate:{ConsultationDate}. Id: {Id}  ", model.ConsultationDate, model.Id);
			var element = _consultationStorage.GetElement(new ConsultationSearchModel
			{
				ConsultationDate = model.ConsultationDate

			});
			if (element != null && element.Id != model.Id)
			{
				throw new InvalidOperationException("На данное время уже назначена консультация");
			}
		}
	}
}