/**
* Automatically find tags for the image and assign them.
*
* @return boolean
*/
public function autoFindTags()
{
$url = str_finish(Config::get('services.alchemyapi.url'), '/') . 'URLGetRankedImageKeywords';
$imageUrl = null;
$previewSize = $this->getImageSize('preview');
if ($previewSize > 1024 * 1024 || $previewSize === 0) {
$imageUrl = $this->thumbnailUrl;
} else {
$imageUrl = $this->previewUrl;
}
$params = ['url' => $imageUrl, 'apikey' => Config::get('services.alchemyapi.key'), 'outputMode' => 'json'];
$url .= '?' . http_build_query($params);
$tags = json_decode(file_get_contents($url));
if (strtolower($tags->status) != 'ok') {
Log::error("Unsuccessfull response from tagging api for image #{$this->id}: " . serialize($tags));
return false;
}
if (count($tags->imageKeywords) === 0) {
$tag = Tag::firstOrCreate(['title' => 'unknown']);
$this->tags()->attach($tag->id);
return true;
}
foreach ($tags->imageKeywords as $tagRaw) {
$tag = Tag::firstOrCreate(['title' => $tagRaw->text]);
$this->tags()->attach($tag->id);
}
return true;
}
