/**
* Process a single audio stream's NowPlaying info.
*
* @param StationStream $stream
* @param Station $station
* @return array Structured NowPlaying Data
*/
public static function processAudioStream(StationStream $stream, Station $station, $force = false)
{
$current_np_data = (array) $stream->nowplaying_data;
// Only process non-default streams on odd-numbered "segments" to improve performance.
if (!$stream->is_default && !$force && NOWPLAYING_SEGMENT % 2 == 0 && !empty($current_np_data)) {
return $current_np_data;
}
$np = StationStream::api($stream);
$custom_class = Station::getStationClassName($station->name);
$custom_adapter = '\\PVL\\RadioAdapter\\' . $custom_class;
if (class_exists($custom_adapter)) {
$np_adapter = new $custom_adapter($stream, $station);
} elseif ($stream->type == "icecast") {
$np_adapter = new \PVL\RadioAdapter\IceCast($stream, $station);
} elseif ($stream->type == "icebreath") {
$np_adapter = new \PVL\RadioAdapter\IceBreath($stream, $station);
} elseif ($stream->type == "shoutcast2") {
$np_adapter = new \PVL\RadioAdapter\ShoutCast2($stream, $station);
} elseif ($stream->type == "shoutcast1") {
$np_adapter = new \PVL\RadioAdapter\ShoutCast1($stream, $station);
} else {
return array();
}
Debug::log('Adapter Class: ' . get_class($np_adapter));
$stream_np = $np_adapter->process();
$np = array_merge($np, $stream_np['meta']);
$np['listeners'] = $stream_np['listeners'];
// Pull from current NP data if song details haven't changed.
$current_song_hash = Song::getSongHash($stream_np['current_song']);
if (strcmp($current_song_hash, $current_np_data['current_song']['id']) == 0) {
$np['current_song'] = $current_np_data['current_song'];
$np['song_history'] = $current_np_data['song_history'];
} else {
if (empty($stream_np['current_song']['text'])) {
$np['current_song'] = array();
$np['song_history'] = $station->getRecentHistory($stream);
} else {
// Register a new item in song history.
$np['current_song'] = array();
$np['song_history'] = $station->getRecentHistory($stream);
// Determine whether to log this song play for analytics.
$log_radio_play = $stream->is_default && $station->category == 'audio';
$song_obj = Song::getOrCreate($stream_np['current_song'], $log_radio_play);
$sh_obj = SongHistory::register($song_obj, $station, $stream, $np);
// Compose "current_song" object for API.
$current_song = Song::api($song_obj);
$current_song['sh_id'] = $sh_obj->id;
$current_song['score'] = SongVote::getScoreForStation($song_obj, $station);
$vote_urls = array();
$vote_functions = array('like', 'dislike', 'clearvote');
foreach ($vote_functions as $vote_function) {
$vote_urls[$vote_function] = \PVL\Url::api(array('module' => 'api', 'controller' => 'song', 'action' => $vote_function, 'sh_id' => $sh_obj->id));
}
$current_song['vote_urls'] = $vote_urls;
$external = $song_obj->getExternal();
if ($external) {
$current_song['external'] = $song_obj->getExternal();
}
$np['current_song'] = $current_song;
}
}
$stream->nowplaying_data = $np;
return $np;
}