using LawCompanyDataModels.Models;
using LawCompanyContracts.BindingModels;
using LawCompanyContracts.BusinessLogicContracts;
using LawCompanyContracts.SearchModels;
using LawCompanyContracts.StoragesContracts;
using LawCompanyContracts.ViewModels;
using Microsoft.Extensions.Logging;

namespace LawCompanyBusinessLogic.BusinessLogics
{
	public class VisitLogic : IVisitLogic
	{
		private readonly ILogger _logger;
		private readonly IVisitStorage _visitStorage;

		public VisitLogic(ILogger<VisitLogic> logger, IVisitStorage VisitStorage)
		{
			_logger = logger;
			_visitStorage = VisitStorage;
		}

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

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

		public VisitViewModel? ReadElement(VisitSearchModel model)
		{
			if (model == null)
			{
				throw new ArgumentNullException(nameof(model));
			}
			_logger.LogInformation("ReadElement. VisitDate:{VisitDate}. Id:{Id}", model.VisitDate, model.Id);
			var element = _visitStorage.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<VisitViewModel>? ReadList(VisitSearchModel? model)
		{
			_logger.LogInformation("ReadList. VisitDate:{VisitDate}.Id:{Id}", model?.VisitDate, model?.Id);
			var list = model == null ? _visitStorage.GetFullList() : _visitStorage.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(VisitBindingModel model)
		{
			CheckModel(model);
			if (_visitStorage.Update(model) == null)
			{
				_logger.LogWarning("Update operation failed");
				return false;
			}
			return true;
		}
		public bool AddClientToVisit(VisitSearchModel model, IClientModel client)
		{
			if (model == null)
			{
				throw new ArgumentNullException(nameof(model));
			}


			var element = _visitStorage.GetElement(model);

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

			element.VisitClients[client.Id] = client;

			_visitStorage.Update(new()
			{
				Id = element.Id,
				VisitDate = element.VisitDate,
				HearingId = element.HearingId,
				VisitClients = element.VisitClients,
				ExecutorId = element.ExecutorId,
			});

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

			_logger.LogInformation("Visit. VisitDate:{VisitDate}. Id: {Id}  ", model.VisitDate, model.Id);
			var element = _visitStorage.GetElement(new VisitSearchModel
			{
				VisitDate = model.VisitDate

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