using BeautySalonContracts.BindingModels;
using BeautySalonContracts.BusinessLogicsContracts;
using BeautySalonContracts.SearchModels;
using BeautySalonContracts.StoragesContracts;
using BeautySalonContracts.ViewModels;
using Microsoft.Extensions.Logging;

namespace BeautySalonBusinessLogic.BusinessLogics
{
    public class ClientLogic : IClientLogic
    {
        private readonly ILogger _logger;
        private readonly IClientStorage _clientStorage;

        public ClientLogic(ILogger<ClientLogic> logger, IClientStorage clientStorage)
        {
            _logger = logger;
            _clientStorage = clientStorage;
        }

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

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

        public ClientViewModel? ReadElement(ClientSearchModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            _logger.LogInformation("ReadElement. PhoneNumber: {PhoneNumber} Id:{ Id}", model.PhoneNumber, model.Id);
            var element = _clientStorage.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<ClientViewModel>? ReadList(ClientSearchModel? model)
        {
            _logger.LogInformation("ReadList. PhoneNumber: {PhoneNumber}. Id:{ Id}", model?.PhoneNumber, model?.Id);
            var list = model == null ? _clientStorage.GetFullList() : _clientStorage.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(ClientBindingModel model)
        {
            CheckModel(model);
            if (_clientStorage.Update(model) == null)
            {
                _logger.LogWarning("Update operation failed");
                return false;
            }
            return true;
        }

        private void CheckModel(ClientBindingModel model, bool withParams = true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            if (!withParams)
            {
                return;
            }
            if (string.IsNullOrEmpty(model.ClientFIO))
            {
                throw new ArgumentNullException("Нет ФИО клиента", nameof(model.ClientFIO));
            }
            if (string.IsNullOrEmpty(model.PhoneNumber))
            {
                throw new ArgumentNullException("Нет номера телефона клиента", nameof(model.PhoneNumber));
            }            
            _logger.LogInformation("Client. ClientFIO:{ClientFIO}. PhoneNumber:{ PhoneNumber}. Id: { Id}", model.ClientFIO, model.PhoneNumber, model.Id);
            var element = _clientStorage.GetElement(new ClientSearchModel { PhoneNumber = model.PhoneNumber });
            if (element != null && element.Id != model.Id)
            {
                throw new InvalidOperationException("Клиент с таким номером уже есть");
            }
        }
    }
}