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 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
            });

            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");
            }
        }
    }
}