private WalletBalance(string wallet, WalletBalance previous)
: this(wallet)
{
if (previous != null)
{
Balance = previous.Balance;
}
}
public Balance ChangeBalance(string wallet, string asset, decimal change)
{
var dictionary = WalletDictionary;
if (dictionary.ContainsKey(wallet))
{
dictionary = dictionary.SetItem(wallet, dictionary[wallet].ChangeBalance(asset, change));
}
else
{
var balance = new WalletBalance(wallet);
balance = balance.ChangeBalance(asset, change);
dictionary = dictionary.Add(wallet, balance);
}
return(new Balance(this, dictionary));
}
private WalletBalance(string wallet, WalletBalance previous, ImmutableDictionary <string, decimal> dictionary)
: this(wallet, previous)
{
Balance = dictionary;
}