/**
* @param DbInterface $db
* @param ChainSegment $segment
* @throws \Exception
*/
private function processSegment(DbInterface $db, ChainSegment $segment)
{
$id = $segment->getId();
if (isset($this->segmentBlock[$segment])) {
throw new \Exception('Already processed this segment');
}
$segCount = $segment->getLast()->getHeight() - $segment->getStart() + 1;
$hashes = $db->loadHashesForSegment($id);
if (count($hashes) !== $segCount) {
throw new \Exception('Not enough hashes found for segment');
}
$this->hashStorage[$id] = [];
foreach ($hashes as $row) {
$this->hashStorage[$id][$row['hash']] = $row['height'];
$this->heightStorage[$id][$row['height']] = $row['hash'];
}
if ($segment->getStart() != 0) {
$ancestor = $db->loadSegmentAncestor($id, $segment->getStart());
if (!isset($this->segments[$ancestor])) {
throw new \RuntimeException('Failed to link segment');
}
$this->chainLink[$id] = $ancestor;
}
$this->segmentBlock[$segment] = $this->db->findSegmentBestBlock($this->getHistory($segment));
}
/**
* @param ChainSegment[] $history
* @return BlockIndexInterface
*/
public function findSegmentBestBlock(array $history)
{
echo __FUNCTION__ . PHP_EOL;
return $this->db->findSegmentBestBlock($history);
}