func (c *Client) checkAccountBalance(acc *account.Account, registration bool) error {
minimum := int64(account.NameMinimumBalance)
if registration {
// If we are doing the first registration of a name,
// we must have enough coins for two of the
// transactions.
minimum *= 2
}
if acc.Balance() < minimum {
// We must endow the account with funds.
// Grab the namecoin address of the account
hash, err := acc.PublicKeyHash()
if err != nil {
return err
}
addr := hash.String()
endowRequest, err := message.CreateMessage(&message.RequestFunds{
Address: &addr,
}, c.Origin, config.ServerAddress())
if err != nil {
return err
}
data, typ, h, err := adMessage.SendMessageAndReceiveWithTimestamp(
endowRequest,
c.Origin, config.ServerAddress())
if err != nil {
return err
} else if typ == wire.ErrorCode {
return adErrors.CreateErrorFromBytes(data, h)
} else if typ != message.TypeTransferFunds {
return errors.New("zooko/resolver: endowment received incorrect response type")
}
transferredFunds := new(message.TransferFunds)
if err := proto.Unmarshal(data, transferredFunds); err != nil {
return err
}
// Build the UTXO for the account
acc.Unspent = append(acc.Unspent, &account.UTXO{
TxID: *transferredFunds.Id,
Output: *transferredFunds.Index,
PkScript: transferredFunds.Script,
Amount: *transferredFunds.Amount,
})
// Go ahead and ensure that the account is now over the minimum
return c.checkAccountBalance(acc, registration)
}
// Otherwise, we are good to go.
return nil
}
