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

namespace SewingDressesBusinessLogic.BusinessLogic
{
    public class DressLogic : IDressLogic
    {
        private readonly ILogger _logger;
        private readonly IDressStorage _dressStorage;

        public DressLogic(ILogger<DressLogic> logger, IDressStorage dressStorage)
        {
            _logger = logger;
            _dressStorage = dressStorage;
        }

        public List<DressViewModel>? ReadList(DressSearchModel? model)
        {
            _logger.LogInformation("ReadList. DressName:{DressName}. Id:{Id}", model?.DressName, model?.Id);
            var list = model == null ? _dressStorage.GetFullList() : _dressStorage.GetFilteredList(model);
            if (list == null)
            {
                _logger.LogWarning("ReadList return null list");
                return null;
            }
            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
            return list;
        }

        public DressViewModel? ReadElement(DressSearchModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            _logger.LogInformation("ReadElement. DressName:{DressName}. Id: {Id}", model.DressName, model.Id);
            var element = _dressStorage.GetElement(model);
            if (element == null)
            {
                _logger.LogWarning("ReadElement element not found");
                return null;
            }
            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
            return element;
        }

        private void CheckModel(DressBindingModel model, bool withParams = true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            if (!withParams)
            {
                return;
            }
            if (string.IsNullOrEmpty(model.DressName))
            {
                throw new ArgumentNullException("Нет названия платья", nameof(model.DressComponents));
            }
            if (model.Price <= 0)
            {
                throw new ArgumentNullException("Цена платья должна быть больше 0", nameof(model.Price));
            }
            _logger.LogInformation("Dress. DressName:{DressName}. Price:{Price}. Id:{Id}", model.DressName, model.Price, model.Id);
            var element = _dressStorage.GetElement(new DressSearchModel
            {
                DressName = model.DressName
            });
            if (element != null && element.Id != model.Id)
            {
                throw new InvalidOperationException("Платье с таким названием уже есть");
            }
        }
        public bool Create(DressBindingModel model)
        {
            CheckModel(model);
            if (_dressStorage.Insert(model) == null)
            {
                _logger.LogWarning("Insert operation failed");
                return false;
            }
            return true;
        }
        public bool Update(DressBindingModel model)
        {
            CheckModel(model);
            if (_dressStorage.Update(model) == null)
            {
                _logger.LogWarning("Update operation failed");
                return false;
            }
            return true;
        }
        public bool Delete(DressBindingModel model)
        {
            CheckModel(model, false);
            _logger.LogInformation("Delete. Id:{Id}", model.Id);
            if (_dressStorage.Delete(model) == null)
            {
                _logger.LogWarning("Delete operation failed");
                return false;
            }
            return true;
        }
    }
}