#!/bin/php
<?php

use Twig\Cache\CacheInterface;
use Twig\Cache\FilesystemCache;
use Twig\Environment;
use Twig\Loader\FilesystemLoader;
use Twig\TwigFunction;

if ( !class_exists('\Twig\Loader\FilesystemLoader')) {
    require_once __DIR__ . '/../galette/vendor/autoload.php';
}

function rmdir_recursive($path){
    if(!empty($path) && is_dir($path) ){
        $dir = new RecursiveDirectoryIterator(
                $path,
                RecursiveDirectoryIterator::SKIP_DOTS
        );
        $files = new RecursiveIteratorIterator(
                $dir,
                RecursiveIteratorIterator::CHILD_FIRST
        );

        foreach ($files as $fpath) {
            ($fpath->isDir() && !$fpath->isLink()) ? rmdir($fpath->getPathname()) : unlink($fpath->getPathname());
        }

        rmdir($path);
        return true;
    }
    return false;
}

/**
 * Return a custom Twig cache handler.
 * This handler is useful to be able to preserve filenames of compiled files.
 *
 * @param string $directory
 *
 * @return CacheInterface
 */
function getTwigCacheHandler(string $directory): CacheInterface
{
    return new class($directory) extends FilesystemCache {

        private string $directory;

        public function __construct(string $directory, int $options = 0)
        {
            $this->directory = rtrim($directory, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR;
            parent::__construct($directory, $options);
        }

        public function generateKey(string $name, string $className): string
        {
            return $this->directory . $name;
        }
    };
}

$directory = sprintf('%s/../galette/templates/default', __DIR__);
$cache_dir = sprintf('%s/../tempcache', __DIR__);
$cache     = getTwigCacheHandler($cache_dir);
if (file_exists($cache_dir)) {
    rmdir_recursive($cache_dir);
}
mkdir($cache_dir);

$iterator  = new RecursiveIteratorIterator(
    new RecursiveDirectoryIterator($directory),
    RecursiveIteratorIterator::LEAVES_ONLY
);

$loader = new FilesystemLoader($directory);
$twig = new Environment(
    $loader,
    [
        'cache'       => $cache,
        'auto_reload' => true,
    ]
);

$twig_functions = [
    '__',
    '_T',
    '_Tn',
    '_Tx',
    '_Tnx',
    'url_for',
    'memberName',
    'callstatic',
    'is_current_url',
    'get_class',
    'base_path',
    'file_exists'
];

foreach ($twig_functions as $function) {
    $twig->addFunction(new TwigFunction($function, $function));
}

/** @var SplFileInfo $file */
foreach ($iterator as $file) {
    if ($file->isFile()) {
        $twig->load(str_replace($directory . '/', '', $file));
    }
}