public override IAccountStateDelta Execute(IActionContext context)
{
var state = context.PreviousStates;
if (context.Rehearsal)
{
return(state.MarkBalanceChanged(Amount.Currency, new[] { Sender, Recipient }));
}
if (Sender != context.Signer)
{
throw new InvalidTransferSignerException(context.Signer, Sender, Recipient);
}
// This works for block after 380000. Please take a look at
// https://github.com/planetarium/libplanet/pull/1133
if (context.BlockIndex > 380000 && Sender == Recipient)
{
throw new InvalidTransferRecipientException(Sender, Recipient);
}
Address recipientAddress = Recipient.Derive(ActivationKey.DeriveKey);
// Check new type of activation first.
if (state.GetState(recipientAddress) is null && state.GetState(Addresses.ActivatedAccount) is Dictionary asDict)
{
var activatedAccountsState = new ActivatedAccountsState(asDict);
var activatedAccounts = activatedAccountsState.Accounts;
// if ActivatedAccountsState is empty, all user is activate.
if (activatedAccounts.Count != 0 &&
!activatedAccounts.Contains(Recipient))
{
throw new InvalidTransferUnactivatedRecipientException(Sender, Recipient);
}
}
Currency currency = Amount.Currency;
if (!(currency.Minters is null) &&
(currency.Minters.Contains(Sender) || currency.Minters.Contains(Recipient)))
{
throw new InvalidTransferMinterException(
currency.Minters,
Sender,
Recipient
);
}
return(state.TransferAsset(Sender, Recipient, Amount));
}