public DrinkOperationInfo BuyDrink(Guid id)
{
DrinkEntity drink = _drinkRepository.Get(id);
CurrentStateEntity currentState = _stateRepository.GetFirst();
_logger.Info(" before buy drink");
_printer.DrinkAndStateInfo(drink, currentState);
bool success = true;
var msg = "";
if (!_vengineMachine.BuyDrink(drink, currentState, _coinRepository.Queryable().ToList()))
{
success = false;
msg =
" Невозможно совершить покупку! В автомате нет сдачи! Деньги возвращены полностью в качестве сдачи";
_logger.Warning(msg);
}
_logger.Info(" after buy drink");
_printer.DrinkAndStateInfo(drink, currentState);
_logger.Info(" before _db.SaveChanges()...");
_drinkRepository.SaveChanges();
return(new DrinkOperationInfo {
Drink = drink, Change = currentState.Change, Success = success, Msg = msg
});
}
/// <summary>
/// Покупка напитка
/// </summary>
/// <param name="drink"></param>
/// <param name="currentState"></param>
/// <param name="coins"></param>
/// <returns></returns>
public bool BuyDrink(DrinkEntity drink, CurrentStateEntity currentState, IList <CoinEntity> coins)
{
//Если не можем купить выходим
if (!IsCanBuy(drink, currentState))
{
return(false);
}
/*List<CoinEntity> coins = _coinsRepo.Queryable().ToList();*/
var deposit = currentState.Deposit;
var change = deposit - drink.CostPrice;
currentState.Deposit = 0;
//Если сдача равна 0 или в атомате достаточное кол-во монет для выдачи, то позволяем купить, иначе просто отдаем внесенные деньги
if (change == 0 || IsHaveCoinsForChange(coins, change))
{
drink.Count--;
currentState.Change += change;
return(true);
}
currentState.Change += deposit;
return(false);
}
public void StateInfo(CurrentStateEntity currentState)
{
_logger.Info(" ");
_logger.Info(" StateInfo:");
_logger.Info(" Deposit = " + currentState.Deposit);
_logger.Info(" Change = " + currentState.Change);
_logger.Info(" ");
}
public void GetChange()
{
CurrentStateEntity currentState = _stateRepository.GetFirst();
_vengineMachine.GetChange(currentState, _coinRepository.Queryable().ToList());
_logger.Info(" before _db.SaveChanges()...");
_stateRepository.SaveChanges();
}
/*protected FakeRepository<DrinkEntity> RepositoryDrink;*/
public virtual void Init()
{
Drink1 = new DrinkEntity()
{
CostPrice = 10,
Count = 2,
Id = Guid.Parse("FFDF9A9C-1FC1-4DEB-B552-45EB5E0EC48C"),
ImagePath = "image1",
Name = "drink1"
};
Drink2 = new DrinkEntity()
{
CostPrice = 20,
Count = 4,
Id = Guid.NewGuid(),
ImagePath = "image2",
Name = "drink2"
};
Coin1 = new CoinEntity()
{
Id = Guid.NewGuid(),
Count = 10,
IsBlocking = false,
Value = ValueCoins.One
};
Coin2 = new CoinEntity()
{
Id = Guid.NewGuid(),
Count = 10,
IsBlocking = true,
Value = ValueCoins.Two
};
CurrentState = new CurrentStateEntity()
{
Change = 0,
Deposit = 0
};
DrinkEntitiesList = new List <DrinkEntity> {
Drink1, Drink2
};
CoinEntitiesList = new List <CoinEntity> {
Coin1, Coin2
};
/*RepositoryDrink = new FakeRepository<DrinkEntity>(DrinkEntitiesList);
* var repositoryCoin = new FakeRepository<CoinEntity>(CoinEntitiesList);*/
VengineMachine = new VengineMachine(/*RepositoryDrink, repositoryCoin*/);
}
public JsonBase IsCanBuy(Guid id)
{
DrinkEntity drink = _drinkRepository.Get(id);
CurrentStateEntity currentState = _stateRepository.GetFirst();
_printer.DrinkAndStateInfo(drink, currentState);
if (!_vengineMachine.IsCanBuy(drink, currentState))
{
var msg = " Сумма недостаточна для покупки!";
_logger.Warning(msg);
return(new JsonError(msg));
}
return(new JsonSuccess());
}
public int AddCoin(Guid id)
{
CoinEntity coinEntity = _coinRepository.Get(id);
CurrentStateEntity currentState = _stateRepository.GetFirst();
_logger.Info(" before add coin");
_printer.CoinAndStateInfo(coinEntity, currentState);
_vengineMachine.AddCoin(coinEntity, currentState);
_logger.Info(" after add coin");
_printer.CoinAndStateInfo(coinEntity, currentState);
_logger.Info(" before _db.SaveChanges()...");
_coinRepository.SaveChanges();
return(currentState.Deposit);
}
/// <summary>
/// Выдача сдачи
/// </summary>
/// <param name="currentState"></param>
/// <param name="coins"></param>
public void GetChange(CurrentStateEntity currentState, IList <CoinEntity> coins)
{
/*List<CoinEntity> coins = _coinsRepo.Queryable().ToList();*/
var change = currentState.Change;
//Подсчет монет для сдачи
IList <Coin> coinsForChange = GetCoinsForChange(coins, change);
if (coinsForChange != null)
{
foreach (var coin in coinsForChange)
{
CoinEntity coinEntity = coins.FirstOrDefault(c => (int)c.Value == coin.Value);
if (coinEntity != null)
{
coinEntity.Count -= coin.Count;
}
}
currentState.Change = 0;
}
}
public void CoinAndStateInfo(CoinEntity coin, CurrentStateEntity state)
{
CoinInfo(coin);
StateInfo(state);
}
public void DrinkAndStateInfo(DrinkEntity drink, CurrentStateEntity state)
{
DrinkInfo(drink);
StateInfo(state);
}
/// <summary>
/// Добавление монеты в автомат, возможно не самое лучшее название метода
/// </summary>
/// <param name="coinEntity"></param>
/// <param name="currentState"></param>
public void AddCoin(CoinEntity coinEntity, CurrentStateEntity currentState)
{
coinEntity.Count++;
currentState.Deposit += (int)coinEntity.Value;
}
/// <summary>
/// Проверка на возможность покупки
/// Нельзя купит если напитка нет или кол-во внесенных средст меньше стоимости напитка
/// </summary>
/// <param name="drink"></param>
/// <param name="currentState"></param>
/// <returns></returns>
public bool IsCanBuy(DrinkEntity drink, CurrentStateEntity currentState)
{
return(drink.Count > 0 && currentState.Deposit >= drink.CostPrice);
}
