Import youtube playlist and videos as CPT - Needs optimization

import_youtube_playlists

// Get all playlists in the channel
function bio_youtube_get_playlists() {
	$lists = array();
	$key = 'Youtube-API-Key';
	$channel = 'Channel-ID';
	$url = "https://www.googleapis.com/youtube/v3/playlists?key=$key&channelId=$channel&part=snippet,id&order=date&maxResults=20";
	$data = file_get_contents($url);
	if (!empty($data)) {
		$data_struct = json_decode($data);
		if (is_array($data_struct->items)) {
			foreach ($data_struct->items as $list) {
				$title = $list->snippet->title;
				$id = $list->id;
				$videos = bio_get_list_videos($id);
				$lists[] = array('title' => $title, 'id' => $id, 'videos' => $videos);
			}
		}
	}
	return $lists;
}

// get all videos for playlist
function bio_get_list_videos($list_id) {
	$videos = array();
	$key = 'Youtube-API-Key';
	$channel = 'Channel-ID';
	$url = "https://www.googleapis.com/youtube/v3/playlistItems?key=$key&playlistId=$list_id&part=snippet,id&maxResults=20";
	$data = file_get_contents($url);
	$i = 0;
	if (!empty($data)) {
		$data_struct = json_decode($data);
		if (is_array($data_struct->items)) {
			foreach ($data_struct->items as $vid) { $i++;
				$videos[$i]['title'] = $vid->snippet->title;
				$videos[$i]['description'] = $vid->snippet->description;
				$videos[$i]['thumb'] = $vid->snippet->thumbnails->medium->url;
				$videos[$i]['id'] = $vid->snippet->resourceId->videoId;
			}
		}
	}
	return $videos;
}

function bio_import_videos() {
  $playlist_tax = 'playlist';
  $video_cpt = 'video';
	$data = bio_youtube_get_playlists();
	foreach ($data as $pl) {
		$term = term_exists($pl['title'], 'playlist');
		if (!$term) {
			$term = wp_insert_term($pl['title'],'playlist', array());
		} 
		$tid = $term['term_id'];

		foreach ($pl['videos'] as $vid) {
			// check if already imported
			if (get_page_by_title($vid['title'], 'OBJECT', $video_cpt )) 
				continue;

			$my_post = array(
  				'post_title'    => wp_strip_all_tags($vid['title']),
				'post_content'  => $vid['description'],
				'post_status'   => 'publish',
				'post_author'   => 1,
				'post_type' => $video_cpt
			);
	 
			$pid = wp_insert_post( $my_post );
			if (!is_wp_error($pid )) {
				wp_set_post_terms( $pid, array($tid), $playlist_tax);
				 // exists in a different gist
      				import_featured_image($vid['thumb'], $vid['title'], $pid);
			}
		}
	}
}

/*
 * Run youtube import weekly
 */
function custom_cron_job_recurrence( $schedules ) {
	$schedules['weekly'] = array(
		'display' => __( 'once weekly', 'bio' ),
		'interval' => 604800,
	);
	return $schedules;
}
add_filter( 'cron_schedules', 'custom_cron_job_recurrence' );

// Schedule Cron Job Event
function custom_cron_job() {
	if ( ! wp_next_scheduled( 'import_youtube_videos' ) ) {
		wp_schedule_event( current_time( 'timestamp' ), 'weekly', 'import_youtube_videos' );
	}
}
add_action( 'wp', 'custom_cron_job' );

add_action('import_youtube_videos', 'bio_import_videos');