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

namespace BeautySalonBusinessLogic.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 List<VisitViewModel>? ReadList(VisitSearchModel? model)
        {
            _logger.LogInformation("ReadList. VisitId:{VisitId}.", 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 VisitViewModel? ReadElement(VisitSearchModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            _logger.LogInformation("ReadElement. Id:{ Id}", 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 bool Create(VisitBindingModel model)
        {
            CheckModel(model);
            if (_visitStorage.Insert(model) == null)
            {
                _logger.LogWarning("Insert operation failed");
                return false;
            }
            return true;
        }
        public bool Update(VisitBindingModel model)
        {
            CheckModel(model);
            if (_visitStorage.Update(model) == null)
            {
                _logger.LogWarning("Update operation failed");
                return false;
            }
            return true;
        }
        public bool Delete(VisitBindingModel model)
        {
            CheckModel(model);
            _logger.LogInformation("Delete. Id:{Id}", model.Id);
            if (_visitStorage.Delete(model) == null)
            {
                _logger.LogWarning("Delete operation failed");
                return false;
            }
            return true;
        }
        private bool CheckModel(VisitBindingModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }            
            if (model.Sum <= 0)
            {
                throw new ArgumentNullException("Суммарная стоимость должна быть больше 0", nameof(model.Sum));
            }
            return true;
        }
    }
}