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


namespace AbstractSoftwareInstallationBusinessLogic
{
    public class SoftwareLogic : ISoftwareLogic
    {
        private readonly ILogger _logger;
        private readonly ISoftwareStorage _softwareStorage;
        public SoftwareLogic(ILogger<SoftwareLogic> logger, ISoftwareStorage SoftwareStorage)
        {
            _logger = logger;
            _softwareStorage = SoftwareStorage;
        }
        public List<SoftwareViewModel>? ReadList(SoftwareSearchModel? model)
        {
            _logger.LogInformation("ReadList. SoftwareName:{SoftwareName}.Id:{ Id}", model?.SoftwareName, model?.Id);
            var list = model == null ? _softwareStorage.GetFullList() : _softwareStorage.GetFilteredList(model);
            if (list == null)
            {
                _logger.LogWarning("ReadList return null list");
                return null;
            }
            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
            return list;
        }
        public SoftwareViewModel? ReadElement(SoftwareSearchModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            _logger.LogInformation("ReadElement. SoftwareName:{SoftwareName}.Id:{ Id}", model.SoftwareName, model.Id);
            var element = _softwareStorage.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(SoftwareBindingModel model)
        {
            CheckModel(model);
            if (_softwareStorage.Insert(model) == null)
            {
                _logger.LogWarning("Insert operation failed");
                return false;
            }
            return true;

        }
        public bool Update(SoftwareBindingModel model)
        {
            CheckModel(model);
            if (_softwareStorage.Update(model) == null)
            {
                _logger.LogWarning("Update operation failed");
                return false;
            }
            return true;
        }
        public bool Delete(SoftwareBindingModel model)
        {
            CheckModel(model, false);
            _logger.LogInformation("Delete. Id:{Id}", model.Id);
            if (_softwareStorage.Delete(model) == null)
            {
                _logger.LogWarning("Delete operation failed");
                return false;
            }
            return true;
        }
        private void CheckModel(SoftwareBindingModel model, bool withParams = true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            if (!withParams)
            {
                return;
            }
            if (string.IsNullOrEmpty(model.SoftwareName))
            {
                throw new ArgumentNullException("Нет названия ПО", nameof(model.SoftwareName));
            }
            if (model.Cost <= 0)
            {
                throw new ArgumentNullException("Цена ПО должна быть больше 0", nameof(model.Cost));
            }
            _logger.LogInformation("Software. SoftwareName:{SoftwareName}.Cost:{ Cost}. Id: { Id}", model.SoftwareName, model.Cost, model.Id);
            var element = _softwareStorage.GetElement(new SoftwareSearchModel
            {
                SoftwareName = model.SoftwareName
            });
            if (element != null && element.Id != model.Id)
            {
                throw new InvalidOperationException("ПО с таким названием уже есть");
            }
        }
    }}