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

namespace CarCenterBusinessLogic.BusinessLogics
{
    public class SaleLogic : ISaleLogic
    {
        private readonly ILogger _logger;
        private readonly ISaleStorage _SaleStorage;

        public SaleLogic(ILogger<SaleLogic> logger, ISaleStorage SaleStorage)
        {
            _logger = logger;
            _SaleStorage = SaleStorage;
        }

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

        public SaleViewModel? ReadElement(SaleSearchModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            _logger.LogInformation("ReadElement. Id:{Id}", model.Id);
            var element = _SaleStorage.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(SaleBindingModel model)
        {
            CheckModel(model);
            if (_SaleStorage.Insert(model) == null)
            {
                _logger.LogWarning("Insert operation failed");
                return false;
            }
            return true;
        }
        public bool Update(SaleBindingModel model)
        {
            CheckModel(model);
            if (_SaleStorage.Update(model) == null)
            {
                _logger.LogWarning("Update operation failed");
                return false;
            }
            return true;
        }

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

        private void CheckModel(SaleBindingModel model, bool withParams = true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            if (!withParams)
            {
                return;
            }
            if (model.Sum < 0)
            {
                throw new InvalidOperationException("Сумма не может быть отрицательной");
            }
            _logger.LogInformation("Sale. SaleDateTime:{SaleDateTime}. Sum:{Sum}. CarId:{CarId}. ReceiptId:{ReceiptId}. ConfigurationId:{ConfigurationId}. Id:{Id}", model.SaleDateTime, model.Sum, model.CarId, model.ReceiptId, model.ConfigurationId, model.Id);
        }
    }
}