<?php
define( 'MW_NO_SESSION', 1 );
require_once __DIR__ . '/../multiversion/MWMultiVersion.php';
require MWMultiVersion::getMediaWiki( 'includes/WebStart.php' );

header( 'Content-Type: text/plain; charset=utf-8' );

function kfFmtBytes($num) {
	if ($num < 1024) {
		return $num . 'B';
	}
	$num /= 1024;
	if ($num < 1024) {
		return round($num) . 'KB';
	}
	$num /= 1024;
	if ($num < 1024) {
		return round($num) . 'MB';
	}
	$num /= 1024;
	if ($num < 1024) {
		return round($num) . 'GB';
	}
}

function kfDumpStuff(string $section) {
	$oc = opcache_get_status();
	$ac = apcu_sma_info();
	$out = '
Opcache is enabled:     '.(int)$oc['opcache_enabled'].'
Opcache is full:        '.(int)$oc['cache_full'].'
Opcache memory used:    '.kfFmtBytes($oc['memory_usage']['used_memory']).'
Opcache memory free:    '.kfFmtBytes($oc['memory_usage']['free_memory']).'
Opcache strings mem used:  '.kfFmtBytes($oc['interned_strings_usage']['used_memory']).'
Opcache strings mem free:  '.kfFmtBytes($oc['interned_strings_usage']['free_memory']).'
APCu mem used:          '.kfFmtBytes($ac['seg_size']).'
APCu mem free:          '.kfFmtBytes($ac['avail_mem']).'
';
	echo "\n### $section\n";
	echo trim($out) . "\n\n";
}

kfDumpStuff('Initial');

$files = array_merge(
	glob("/srv/mediawiki/php-1.35.0-wmf.22/cache/l10n/*.php"),
	glob("/srv/mediawiki/php-1.35.0-wmf.23/cache/l10n/*.php")
);
if (!$files)
	die('No files found.');

echo 'Found ' . count($files) . " files.\n";
$chunks = array_chunk($files, 10);
echo 'Created ' . count($chunks) . " chunks of 10 files each.\n\n";

foreach (
	$chunks
	as
	$i => $chunk
) {
	echo "Loading:\n";
	foreach ($chunk as $file) {
		echo " * $file\n";
		opcache_compile_file($file) or die("Failed to compile: $file");
	}

	kfDumpStuff('After chunk #' . $i);

	if ( $i > 10 ) {
		break;
	}
}