#!/usr/bin/env php
<?php
define('ITERATIONS', 100000);



require dirname(__FILE__) . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . 'vendor' . DIRECTORY_SEPARATOR . 'autoload.php';
use Identicon\Generator\GdGenerator;
use Identicon\Generator\ImageMagickGenerator;
use Identicon\Generator\SvgGenerator;
use Identicon\Identicon;
use Jdenticon\Identicon as Jdenticon;
use PrivateBin\Vizhash16x16;



$vizhash = new Vizhash16x16();
$identiconGenerators = array(
    'identicon GD' => new Identicon(new GdGenerator()),
    'identicon ImageMagick' => new Identicon(new ImageMagickGenerator()),
    'identicon SVG' => new Identicon(new SvgGenerator()),
);
$jdenticon = new Jdenticon(array(
    'size'  => 16,
    'style' => array(
        'backgroundColor'   => '#fff0', // fully transparent, for dark mode
        'padding'           => 0,
    ),
));
$jdenticonGenerators = array(
    'jdenticon PNG' => 'png',
    'jdenticon SVG' => 'svg',
);
$results = array(
    'vizhash' => array(
        'lengths' => array(),
        'time' => 0
    ),
    'identicon GD' => array(
        'lengths' => array(),
        'time' => 0
    ),
    'identicon ImageMagick' => array(
        'lengths' => array(),
        'time' => 0
    ),
    'identicon SVG' => array(
        'lengths' => array(),
        'time' => 0
    ),
    'jdenticon PNG' => array(
        'lengths' => array(),
        'time' => 0
    ),
    'jdenticon SVG' => array(
        'lengths' => array(),
        'time' => 0
    ),
);
$hmacs = array();

echo 'generate ', ITERATIONS, ' hmacs and pre-populate the result array, so tests wont be slowed down', PHP_EOL;
for ($i = 0; $i < ITERATIONS; ++$i) {
    $hmacs[$i] = hash_hmac('sha512', '127.0.0.1', bin2hex(random_bytes(256)));
    foreach (array_keys($results) as $test) {
        $results[$test]['lengths'][$i] = 0;
    }
}

echo 'run vizhash tests', PHP_EOL;
$start = microtime(true);
foreach ($hmacs as $i => $hmac) {
    $data = 'data:image/png;base64,' . base64_encode(
        $vizhash->generate($hmac)
    );
    $results['vizhash']['lengths'][$i] = strlen($data);
}
$results['vizhash']['time'] = microtime(true) - $start;

foreach ($identiconGenerators as $key => $identicon) {
    echo 'run ', $key,' tests', PHP_EOL;
    $start = microtime(true);
    foreach ($hmacs as $i => $hmac) {
        $data = $identicon->getImageDataUri($hmac, 16);
        $results[$key]['lengths'][$i] = strlen($data);
    }
    $results[$key]['time'] = microtime(true) - $start;
}

foreach ($jdenticonGenerators as $key => $format) {
    echo 'run ', $key,' tests', PHP_EOL;
    $start = microtime(true);
    foreach ($hmacs as $i => $hmac) {
        $jdenticon->setHash($hmac);
        $data = $jdenticon->getImageDataUri($format);
        $results[$key]['lengths'][$i] = strlen($data);
    }
    $results[$key]['time'] = microtime(true) - $start;
}


define(
    'PADDING_LENGTH',
    max(
        array_map(
            function ($key) {
                return strlen($key);
            },
            array_keys($results)
        )
    ) + 1
);

function format_result_line($generator, $min, $max, $avg, $sec) {
    echo str_pad($generator, PADDING_LENGTH, ' '), "\t",
        str_pad($min, 4, ' ', STR_PAD_LEFT), "\t",
        str_pad($max, 4, ' ', STR_PAD_LEFT), "\t",
        str_pad($avg, 4, ' ', STR_PAD_LEFT), "\t",
        str_pad($sec, 7, ' ', STR_PAD_LEFT), PHP_EOL;
}

echo PHP_EOL;
format_result_line('Generator:', 'min', 'max', 'avg', 'seconds');
format_result_line(
    str_repeat('─', PADDING_LENGTH), str_repeat('─', 4), str_repeat('─', 4),
    str_repeat('─', 4), str_repeat('─', 7)
);
foreach ($results as $generator => $result) {
    sort($result['lengths']);
    format_result_line(
        $generator . ':',
        $result['lengths'][0],
        $result['lengths'][ITERATIONS-1],
        round(array_sum($result['lengths']) / ITERATIONS),
        round($result['time'], 3)
    );
}