public CoinsService(ICoinRepository coinRepository)
{
this.coinRepository = coinRepository;
var coinDetails = coinRepository.List().ToList();
coinDenominations = coinDetails.OrderByDescending(x => x.Value);
coinTypeValues = coinDetails.ToDictionary(x => x.CoinType, x => x.Value);
}
public IEnumerable <CoinDetail> GetCoins()
{
return(coinRepository.List());
}