/**
* @return \BitWasp\Buffertools\Template
*/
private function getTemplate()
{
return (new TemplateFactory())->uint32le()->vector(function (Parser &$parser) {
return $this->inputSerializer->fromParser($parser);
})->vector(function (Parser &$parser) {
return $this->outputSerializer->fromParser($parser);
})->uint32le()->getTemplate();
}
/**
* @param Parser $parser
* @return Transaction
*/
public function fromParser(Parser $parser)
{
$math = Bitcoin::getMath();
$int32le = new Int32($math, ByteOrder::LE);
$uint32le = new Uint32($math, ByteOrder::LE);
$varint = new VarInt($math, ByteOrder::LE);
$version = $int32le->read($parser);
$vin = [];
$vinCount = $varint->read($parser);
for ($i = 0; $i < $vinCount; $i++) {
$vin[] = $this->inputSerializer->fromParser($parser);
}
$vout = [];
$flags = 0;
if (count($vin) == 0) {
$flags = (int) $varint->read($parser);
if ($flags != 0) {
$vinCount = $varint->read($parser);
for ($i = 0; $i < $vinCount; $i++) {
$vin[] = $this->inputSerializer->fromParser($parser);
}
$voutCount = $varint->read($parser);
for ($i = 0; $i < $voutCount; $i++) {
$vout[] = $this->outputSerializer->fromParser($parser);
}
}
} else {
$voutCount = $varint->read($parser);
for ($i = 0; $i < $voutCount; $i++) {
$vout[] = $this->outputSerializer->fromParser($parser);
}
}
$vwit = [];
if ($flags & 1) {
$flags ^= 1;
$witCount = count($vin);
for ($i = 0; $i < $witCount; $i++) {
$vectorCount = $varint->read($parser);
$vwit[] = $this->witnessSerializer->fromParser($parser, $vectorCount);
}
}
if ($flags) {
throw new \RuntimeException('Flags byte was 0');
}
$lockTime = $uint32le->read($parser);
return new Transaction($version, new TransactionInputCollection($vin), new TransactionOutputCollection($vout), new TransactionWitnessCollection($vwit), $lockTime);
}
/**
* @return Buffer
*/
public function getBuffer()
{
$serializer = new TransactionInputSerializer();
$out = $serializer->serialize($this);
return $out;
}
