lastfm.class.php

<?php

class lastfm {

    private $userfile = 'lastfm.json';
    private $api_key = '';

    public function __construct() {

        if (!file_exists($this->userfile)) { touch($this->userfile); chmod($this->userfile, 0755); }

    }

    private function getuser($nick) {

        $users = json_decode(file_get_contents($this->userfile),true);
 
        $user = $users[$nick];

        return $user; 

    }

    public function checkuser($nick) {
 
        $users = json_decode(file_get_contents($this->userfile),true);

        if (empty($users[$nick])) {

            return false;

        } else {

            return true;

        }

    }

    public function adduser($nick,$user) {

        $users = json_decode(file_get_contents($this->userfile),true);

        $users[$nick] = $user;

        file_put_contents($this->userfile, json_encode($users));

    }

    public function nowplaying($nick) {
    
        $user = $this->getuser($nick);

        $output = file_get_contents("http://ws.audioscrobbler.com/2.0/?method=user.getrecenttracks&user=". $user . "&api_key=" . $this->api_key . "&format=json");
        $output = json_decode($output,true);

        $lastplayed_array = $output['recenttracks']['track'][0];

        $artist = $lastplayed_array['artist']['#text'];
        $track = $lastplayed_array['name'];

        $track = $artist . " - " . $track;

        if (isset($lastplayed_array['@attr']['nowplaying'])) {

            if ($this->spot_check($track)) {

                $output = $nick . " is currently listening to: " . $track . ", " . $this->spot_trackid($track);

            } else {

                $output = $nick . " is currently listening to: " . $track;

            }

        } else {

            if ($this->spot_check($track)) {

                $output = $nick . " last listened to: " . $track . ", " . $this->spot_trackid($track);

            } else {

                $output = $nick . " last listened to: " . $track;

            }

        }

        return $output;

    }

    private function spot_check($track) {

        //Set the base URL for searching.
        $base = "https://api.spotify.com/v1/search";

        $track = str_replace('-', '', $track);
        $track = urlencode($track);

        //Talk to the spotify API to return some json yumminess.
        $ch = curl_init();
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt($ch, CURLOPT_URL, $base . "?q=" . $track . "&type=track");

        $output = curl_exec($ch);

        curl_close($ch);

        //Decode the json into an array.
        $output = json_decode($output,true);

        //If there are no results for the track.
        if ($output['tracks']['total'] == '0') {

            return false;

        } else {

            return true;

        }

    }

    public function spot_trackid($track) {

        $base = "https://api.spotify.com/v1/search";

        $track = str_replace('-', '', $track);
        $track = urlencode($track);

        //Talk to the spotify API to return some json yumminess.
        $ch = curl_init();
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt($ch, CURLOPT_URL, $base . "?q=" . $track . "&type=track");

        $output = curl_exec($ch);

        curl_close($ch);

        //Decode the json into an array.
        $output = json_decode($output,true);

        $output = $output['tracks']['items'][0];

        $trackid = $output['uri'];

        $track = explode(':', $trackid);
        $track = "https://open.spotify.com/track/" . $track[2];

        return $track;

    }

}