<?php

/*
 * This file is part of Twig.
 *
 * (c) Fabien Potencier
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace WPML\Core\Twig\Cache;

/**
 * Implements a cache on the filesystem.
 *
 * @author Andrew Tch <andrew@noop.lv>
 */
class FilesystemCache implements \WPML\Core\Twig\Cache\CacheInterface
{
    const FORCE_BYTECODE_INVALIDATION = 1;
    private $directory;
    private $options;
    /**
     * @param string $directory The root cache directory
     * @param int    $options   A set of options
     */
    public function __construct($directory, $options = 0)
    {
        $this->directory = \rtrim($directory, '\\/') . '/';
        $this->options = $options;
    }
    public function generateKey($name, $className)
    {
        $hash = \hash('sha256', $className);
        return $this->directory . $hash[0] . $hash[1] . '/' . $hash . '.php';
    }
    public function load($key)
    {
        if (\file_exists($key)) {
            @(include_once $key);
        }
    }
    public function write($key, $content)
    {
        $dir = \dirname($key);
        if (!\is_dir($dir)) {
            if (\false === @\mkdir($dir, 0777, \true)) {
                \clearstatcache(\true, $dir);
                if (!\is_dir($dir)) {
                    throw new \RuntimeException(\sprintf('Unable to create the cache directory (%s).', $dir));
                }
            }
        } elseif (!\is_writable($dir)) {
            throw new \RuntimeException(\sprintf('Unable to write in the cache directory (%s).', $dir));
        }
        $tmpFile = \tempnam($dir, \basename($key));
        if (\false !== @\file_put_contents($tmpFile, $content) && @\rename($tmpFile, $key)) {
            @\chmod($key, 0666 & ~\umask());
            if (self::FORCE_BYTECODE_INVALIDATION == ($this->options & self::FORCE_BYTECODE_INVALIDATION)) {
                // Compile cached file into bytecode cache
                if (\function_exists('opcache_invalidate') && \filter_var(\ini_get('opcache.enable'), \FILTER_VALIDATE_BOOLEAN)) {
                    @\opcache_invalidate($key, \true);
                } elseif (\function_exists('apc_compile_file')) {
                    \apc_compile_file($key);
                }
            }
            return;
        }
        throw new \RuntimeException(\sprintf('Failed to write cache file "%s".', $key));
    }
    public function getTimestamp($key)
    {
        if (!\file_exists($key)) {
            return 0;
        }
        return (int) @\filemtime($key);
    }
}
\class_alias('WPML\\Core\\Twig\\Cache\\FilesystemCache', 'WPML\\Core\\Twig_Cache_Filesystem');