using CarCenterContracts.BindingModels;
using CarCenterContracts.BusinessLogicsContracts;
using CarCenterContracts.SearchModels;
using CarCenterContracts.StoragesContracts;
using CarCenterContracts.ViewModels;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Extensions.Logging;

namespace CarCenterBusinessLogic.BusinessLogics
{
    public class CarLogic : ICarLogic
    {
        private readonly ILogger _logger;
        private readonly ICarStorage _carStorage;
        private readonly IAdministratorLogic _administratorLogic;

        public CarLogic(ILogger<CarLogic> logger, ICarStorage carStorage, IAdministratorLogic administratorLogic)
        {
            _logger = logger;
            _carStorage = carStorage;
            _administratorLogic = administratorLogic;
        }
        public bool Create(CarBindingModel model)
        {
            CheckModel(model);

            var result = _carStorage.Insert(model);

            if (result == null)
            {
                _logger.LogWarning("Insert operation failed");
                return false;
            }

            return true;
        }

        public bool Delete(CarBindingModel model)
        {
            CheckModel(model, false);

            _logger.LogInformation("Delete. Id:{Id}", model.Id);

            var result = _carStorage.Delete(model);

            if (result == null)
            {
                _logger.LogWarning("Delete operation failed");
                return false;
            }
            return true;
        }

        public CarViewModel? ReadElement(CarSearchModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }

            _logger.LogInformation("ReadElement. BrandCar:{BrandCar}.Id:{Id}", model.BrandCar, model.Id);

            var element = _carStorage.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<CarViewModel>? ReadList(CarSearchModel? model)
        {
            _logger.LogInformation("ReadList. BrandCar:{BrandCar}.Id:{ Id}", model?.BrandCar, model?.Id);

            var list = model == null ? _carStorage.GetFullList() : _carStorage.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(CarBindingModel model)
        {
            CheckModel(model);

            if (_carStorage.Update(model) == null)
            {
                _logger.LogWarning("Update operation failed");
                return false;
            }

            return true;
        }
        private void CheckModel(CarBindingModel model, bool withParams = true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }

            if (!withParams)
            {
                return;
            }

            if (string.IsNullOrEmpty(model.BrandCar))
            {
                throw new ArgumentNullException("Нет названия бренда", nameof(model.BrandCar));
            }

            if (string.IsNullOrEmpty(model.Model))
            {
                throw new ArgumentNullException("Нет названия модели", nameof(model.Model));
            }

            _logger.LogInformation("Car. BrandCar:{BrandCar}.Model:{ Model}. Id: { Id}", model.BrandCar, model.BrandCar, model.Id);
        }
    }
    
}