/**
* Sync the local cache with the remote changes. If checkpoint is null, this
* will sync all remote node data.
*
* @throws \Exception
*/
public function sync()
{
$params = ['maxNodes' => 5000];
if ($this->checkpoint) {
$params['includePurged'] = "true";
}
while (true) {
if ($this->checkpoint) {
$params['checkpoint'] = $this->checkpoint;
}
$loop = true;
$response = $this->httpClient->post("{$this->getMetadataUrl()}changes", ['headers' => ['Authorization' => "Bearer {$this->token['access_token']}"], 'body' => json_encode($params), 'exceptions' => false]);
if ($response->getStatusCode() !== 200) {
throw new \Exception((string) $response->getBody());
}
$data = explode("\n", (string) $response->getBody());
foreach ($data as $part) {
$part = json_decode($part, true);
if (isset($part['end']) && $part['end'] === true) {
break;
}
if (isset($part['reset']) && $part['reset'] === true) {
$this->cache->deleteAllNodes();
}
if (isset($part['nodes'])) {
if (empty($part['nodes'])) {
$loop = false;
} else {
foreach ($part['nodes'] as $node) {
$node = new Node($node);
if ($node['status'] === 'PURGED') {
$node->delete();
} else {
$node->save();
}
}
}
}
if (isset($part['checkpoint'])) {
$this->checkpoint = $part['checkpoint'];
}
$this->save();
}
if (!$loop) {
break;
}
}
}