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

namespace SYBDBusinessLogic.BusinessLogics
{
    public class InsuranceLogic : IInsuranceLogic
    {
        private readonly ILogger _logger;

        private readonly IInsuranceStorage _insuranceStorage;

        public InsuranceLogic(ILogger<InsuranceLogic> logger, IInsuranceStorage insuranceStorage)
        {
            _logger = logger;
            _insuranceStorage = insuranceStorage;
        }

        public List<InsuranceViewModel>? ReadList(InsuranceSearchModel? model)
        {
            _logger.LogInformation("ReadList. InsuranceName:{Name}. Id:{Id}", model?.Name, model?.Id);
            var list = model == null ? _insuranceStorage.GetFullList() : _insuranceStorage.GetFilteredList(model);
            if (list == null)
            {
                _logger.LogWarning("ReadList return null list");
                return null;
            }
            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
            return list;
        }

        public InsuranceViewModel? ReadElement(InsuranceSearchModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            _logger.LogInformation("ReadElement. InsuranceName:{Name}. Id:{Id}", model.Name, model.Id);
            var element = _insuranceStorage.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(InsuranceBindingModel model)
        {
            CheckModel(model);
            if (_insuranceStorage.Insert(model) == null)
            {
                _logger.LogWarning("Insert operation failed");
                return false;
            }
            return true;
        }

        public bool Update(InsuranceBindingModel model)
        {
            CheckModel(model);
            if (_insuranceStorage.Update(model) == null)
            {
                _logger.LogWarning("Update operation failed");
                return false;
            }
            return true;
        }

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

        private void CheckModel(InsuranceBindingModel model, bool withParams = true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            if (!withParams)
            {
                return;
            }
            if (string.IsNullOrEmpty(model.Name))
            {
                throw new ArgumentNullException("Нет названия страховой", nameof(model.Name));
            }
            if (string.IsNullOrEmpty(model.Address))
            {
                throw new ArgumentNullException("Нет адреса страховой", nameof(model.Address));
            }
            if (string.IsNullOrEmpty(model.Phone))
            {
                throw new ArgumentNullException("Нет телефона страховой", nameof(model.Phone));
            }
            _logger.LogInformation("Insurance. Name:{Name}. Address:{Address}.Phone:{Phone}. Id:{Id}", model.Name, model.Address, model.Phone, model.Id);
            var element = _insuranceStorage.GetElement(new InsuranceSearchModel
            {
                Name = model.Name
            });
            if (element != null && element.Id != model.Id)
            {
                throw new InvalidOperationException("Страховая с таким названием уже есть");
            }
        }
    }
}