/**
* @param Binary $currencyKey
* @param string $rules
* @param null|RuleBook $previous
* @return RuleBook
*/
public function signRules(Binary $currencyKey, $rules, RuleBook $previous = null)
{
$address = $this->key->getAddress($currencyKey);
$book = RuleBook::signed(new Signer($this->key, $currencyKey), $address, $rules, $previous);
$allRules = [$book];
if ($previous) {
$allRules[] = $previous;
}
(new Verification($this->key))->verifyCurrencyRules($allRules)->mustBeOk();
return $book;
}
/**
* @param RuleBook $object
* @param Transcoder $transcoder
* @return array
*/
public function toArray($object, Transcoder $transcoder)
{
$array = ['by' => $transcoder->encode($object->getCurrencyAddress()->getData()), 'rules' => $object->getRules()];
if ($object->getPreviousHash()) {
$array['prev'] = $transcoder->encode($object->getPreviousHash()->getData());
}
$array['sig'] = $object->getSignature();
return $array;
}
/**
* @param Signer $currency
* @param Binary $address
* @param string $rules
* @param null|RuleBook $previous
* @return RuleBook
*/
public static function signed(Signer $currency, Binary $address, $rules, RuleBook $previous = null)
{
$previousHash = $previous ? $previous->hash() : null;
return new RuleBook($address, $rules, $currency->sign([$address, $rules, $previousHash]), $previousHash);
}
