<?php

declare(strict_types=1);

namespace Packetery\Tracy;

/** @var DefaultBarPanel $this */

if (isset($this->cpuUsage) && $this->time) {
	foreach (getrusage() as $key => $val) {
		$this->cpuUsage[$key] -= $val;
	}
	$userUsage = -round(($this->cpuUsage['ru_utime.tv_sec'] * 1e6 + $this->cpuUsage['ru_utime.tv_usec']) / $this->time / 10000);
	$systemUsage = -round(($this->cpuUsage['ru_stime.tv_sec'] * 1e6 + $this->cpuUsage['ru_stime.tv_usec']) / $this->time / 10000);
}

$countClasses = function (array $list): int {
	return count(array_filter($list, function (string $name): bool {
		return (new \ReflectionClass($name))->isUserDefined();
	}));
};

$ipFormatter = static function (?string $ip): ?string {
	if ($ip === '127.0.0.1' || $ip === '::1') {
		$ip .= ' (localhost)';
	}
	return $ip;
};

$opcache = function_exists('opcache_get_status') ? @opcache_get_status() : null; // @ can be restricted
$cachedFiles = isset($opcache['scripts']) ? array_intersect(array_keys($opcache['scripts']), get_included_files()) : [];
$jit = $opcache['jit'] ?? null;

$info = [
	'Execution time' => number_format($this->time * 1000, 1, '.', "\u{202f}") . "\u{202f}ms",
	'CPU usage user + system' => isset($userUsage) ? (int) $userUsage . "\u{202f}% + " . (int) $systemUsage . "\u{202f}%" : null,
	'Peak of allocated memory' => number_format(memory_get_peak_usage() / 1000000, 2, '.', "\u{202f}") . "\u{202f}MB",
	'Included files' => count(get_included_files()),
	'Classes + interfaces + traits' => $countClasses(get_declared_classes()) . ' + '
		. $countClasses(get_declared_interfaces()) . ' + ' . $countClasses(get_declared_traits()),
	'OPcache' => $opcache ? round(count($cachedFiles) * 100 / count(get_included_files())) . "\u{202f}% cached" : '–',
	'JIT' => empty($jit['buffer_size']) ? '–' : round(($jit['buffer_size'] - $jit['buffer_free']) / $jit['buffer_size'] * 100) . "\u{202f}% used",
	'Your IP' => $ipFormatter($_SERVER['REMOTE_ADDR'] ?? null),
	'Server IP' => $ipFormatter($_SERVER['SERVER_ADDR'] ?? null),
	'HTTP method / response code' => isset($_SERVER['REQUEST_METHOD']) ? $_SERVER['REQUEST_METHOD'] . ' / ' . http_response_code() : null,
	'PHP' => PHP_VERSION,
	'Xdebug' => extension_loaded('xdebug') ? phpversion('xdebug') : null,
	'Tracy' => Debugger::VERSION,
	'Server' => $_SERVER['SERVER_SOFTWARE'] ?? null,
];

$info = array_map('strval', array_filter($info + (array) $this->data));

$packages = $devPackages = [];
if (class_exists('Composer\Autoload\ClassLoader', false)) {
	$baseDir = (function () {
		@include dirname((new \ReflectionClass('Composer\Autoload\ClassLoader'))->getFileName()) . '/autoload_psr4.php'; // @ may not exist
		return $baseDir;
	})();
	$composer = @json_decode((string) file_get_contents($baseDir . '/composer.lock')); // @ may not exist or be valid
	[$packages, $devPackages] = [(array) @$composer->packages, (array) @$composer->{'packages-dev'}]; // @ keys may not exist
	foreach ([&$packages, &$devPackages] as &$items) {
		array_walk($items, function ($package) {
			$package->hash = $package->source->reference ?? $package->dist->reference ?? null;
		}, $items);
		usort($items, function ($a, $b): int { return $a->name <=> $b->name; });
	}
}

?>
<style class="tracy-debug">
	#tracy-debug .tracy-InfoPanel td {
		white-space: nowrap;
	}
	#tracy-debug .tracy-InfoPanel td:nth-child(2) {
		font-weight: bold;
		width: 60%;
	}
	#tracy-debug .tracy-InfoPanel td[colspan='2'] b {
		float: right;
		margin-left: 2em;
		white-space: normal;
	}
</style>

<h1>System info</h1>

<div class="tracy-inner tracy-InfoPanel">
<div class="tracy-inner-container">
<table class="tracy-sortable">
<?php foreach ($info as $key => $val): ?>
<tr>
<?php if (strlen($val) > 25): ?>
	<td colspan=2><?= Helpers::escapeHtml($key) ?> <b><?= Helpers::escapeHtml($val) ?></b></td>
<?php else: ?>
	<td><?= Helpers::escapeHtml($key) ?></td><td><?= Helpers::escapeHtml($val) ?></td>
<?php endif ?>
</tr>
<?php endforeach ?>
</table>

<?php if ($packages || $devPackages): ?>
	<h2><a class="tracy-toggle tracy-collapsed" data-tracy-ref="^div .tracy-InfoPanel-packages">Composer Packages (<?= count($packages), $devPackages ? ' + ' . count($devPackages) . ' dev' : '' ?>)</a></h2>

	<div class="tracy-InfoPanel-packages tracy-collapsed">
	<?php if ($packages): ?>
	<table class="tracy-sortable">
	<?php foreach ($packages as $package): ?>
		<tr><td><?= Helpers::escapeHtml($package->name) ?></td><td><?= Helpers::escapeHtml($package->version . (strpos($package->version, 'dev') !== false && $package->hash ? ' #' . substr($package->hash, 0, 4) : '')) ?></td></tr>
	<?php endforeach ?>
	</table>
	<?php endif ?>

	<?php if ($devPackages): ?>
	<h2>Dev Packages</h2>
	<table class="tracy-sortable">
	<?php foreach ($devPackages as $package): ?>
		<tr><td><?= Helpers::escapeHtml($package->name) ?></td><td><?= Helpers::escapeHtml($package->version . (strpos($package->version, 'dev') !== false && $package->hash ? ' #' . substr($package->hash, 0, 4) : '')) ?></td></tr>
	<?php endforeach ?>
	</table>
	<?php endif ?>
	</div>
<?php endif ?>
</div>
</div>
