#!/usr/bin/php
<?php
require __DIR__.'/../vendor/autoload.php';

use wapmorgan\Mp3Info\Mp3Info;

$compare = class_exists('getID3');

if ($argc == 1)
    die('Specify file names to scan');

function formatTime($time) {
    return floor($time / 60).':'.str_pad(floor($time % 60), 2, 0, STR_PAD_LEFT);
}

function substrIfLonger($string, $maxLength) {
    if (strlen($string) > $maxLength) {
        return substr($string, 0, $maxLength-3).'...';
    }
    return $string;
}

function analyze($filename, &$total_duration, &$total_parse_time, $id3v2 = false) {
    if (!is_readable($filename)) return;
    try {
    $audio = new Mp3Info($filename, true);
    } catch (Exception $e) {
        return null;
    }
    echo sprintf('%15s | %4s | %7s | %0.1fkHz | %-11s | %-10s | %.5f', substrIfLonger(basename($filename), 15), formatTime($audio->duration), $audio->isVbr ? 'vbr' : ($audio->bitRate / 1000).'kbps', ($audio->sampleRate / 1000), isset($audio->tags1['song']) ? substrIfLonger($audio->tags1['song'], 11) : null, isset($audio->tags1['artist']) ? substrIfLonger($audio->tags1['artist'], 10) : null, $audio->_parsingTime).PHP_EOL;
    if ($id3v2 && !empty($audio->tags2)) {
        foreach ($audio->tags2 as $tag=>$value) {
            echo '    '.$tag.': ';
            if ($tag == 'COMM') {
                foreach ($value as $lang => $comment) {
                    echo '['.$lang.'] '.$comment['short'].'; '.$comment['actual'].PHP_EOL;
                }
            } else
            echo $value.PHP_EOL;
        }
    }
    $total_duration += $audio->duration;
    $total_parse_time += $audio->_parsingTime;
}


function analyzeId3($filename, &$total_parse_time) {
    static $ID3;
    if ($ID3 === null) $ID3 = new getID3();

    $t = microtime(true);
    $info = $ID3->analyze($filename);
    $parse_time = microtime(true) - $t;
    echo sprintf('%15s | %4s | %7s | %0.1fkHz | %-11s | %-10s | %.5f', substrIfLonger(basename($filename), 15), $info['playtime_string'], $info['audio']['bitrate_mode'] == 'vbr' ? 'vbr' : floor($info['audio']['bitrate'] / 1000).'kbps', ($info['audio']['sample_rate'] / 1000), isset($info['tags']['title']) ? substrIfLonger($info['tags']['title'], 11) : null, isset($info['tags']['artist']) ? substrIfLonger($info['tags']['artist'], 10) : null, $parse_time).PHP_EOL;
    $total_parse_time += $parse_time;
}

array_shift($argv);
echo sprintf('%15s | %4s | %7s | %7s | %11s | %10s | %4s', 'File name', 'dur.', 'bitrate', 'sample', 'song', 'artist',
    'time').PHP_EOL;
$total_duration = $total_parse_time = $id3_parse_time = 0;
foreach ($argv as $arg) {
    if (is_dir($arg)) {
        foreach (glob(rtrim($arg, DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR.'*.mp3') as $f) {
            if (is_file($f)) {
                analyze($f, $total_duration, $total_parse_time);
                if ($compare) analyzeId3($f, $id3_parse_time);
            }
        }
    } else if (is_file($arg)) {
        analyze($arg, $total_duration, $total_parse_time, true);
        if ($compare) analyzeId3($f, $id3_parse_time);
    }
}
echo sprintf('%42s | %34s', 'Total duration: '.formatTime($total_duration), 'Total parsing time: '.round($total_parse_time, 5)).PHP_EOL;
if ($compare) echo sprintf('%79s', 'Total getId3 parsing time: '.round($id3_parse_time, 5)).PHP_EOL;