public static List <CoinBalanceDisplay> ToBalance(this PlayerAwards item, Coins coins)
{
//TODO not expired etc
return(item.Where(e => coins.Any(c => c.EntityRefId.Equals(e.CoinRefId))).GroupBy(f => f.CoinRefId).Select(cl =>
new CoinBalanceDisplay
{
Coin = coins.FirstOrDefault(g => g.EntityRefId.Equals(cl.First().CoinRefId))?.ToDisplay(),
Balance = cl.Sum(s => s.Value),
}
).ToList());
}