<?php
/**
 * Lists front-office strings without a translation for the given language.
 * Usage: docker compose exec -u www-data app php docker/find-missing-translations.php [iso] > missing.json
 * Scans theme templates and the front templates of active front modules.
 */
if (PHP_SAPI !== 'cli') {
    exit;
}
$iso = isset($argv[1]) ? $argv[1] : 'de';
$root = realpath(__DIR__.'/..');
$theme = $root.'/themes/hotel-reservation-theme';

$_LANG = array();
include $theme.'/lang/'.$iso.'.php';
$themeLang = $_LANG;

$re = '/\{l\s+s=(?:\'((?:[^\'\\\\]|\\\\.)*)\'|"((?:[^"\\\\]|\\\\.)*)")(?:\s+mod=[\'"]([\w-]+)[\'"])?[^}]*\}/';
$out = array('theme' => array(), 'modules' => array());
$moduleLangCache = array();

$moduleLang = function ($mod) use (&$moduleLangCache, $root, $theme, $iso) {
    if (!isset($moduleLangCache[$mod])) {
        $_MODULE = array();
        foreach (array($root.'/modules/'.$mod.'/translations/'.$iso.'.php', $theme.'/modules/'.$mod.'/translations/'.$iso.'.php') as $f) {
            if (is_file($f)) {
                include $f;
            }
        }
        $moduleLangCache[$mod] = $_MODULE;
    }
    return $moduleLangCache[$mod];
};

$files = array();
$it = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($theme, FilesystemIterator::SKIP_DOTS));
foreach ($it as $f) {
    if (substr($f, -4) === '.tpl' && strpos($f, '/mobile/') === false && strpos($f, '/pdf/') === false) {
        $files[] = (string)$f;
    }
}
// older modules keep front templates in the module root
foreach (glob($root.'/modules/*/*.tpl') as $f) {
    $files[] = $f;
}
foreach (glob($root.'/modules/*/views/templates/{hook,front}/*.tpl', GLOB_BRACE) as $f) {
    $files[] = $f;
}
foreach (glob($root.'/modules/*/views/templates/{hook,front}/*/*.tpl', GLOB_BRACE) as $f) {
    $files[] = $f;
}

foreach ($files as $file) {
    $src = file_get_contents($file);
    if (!preg_match_all($re, $src, $m, PREG_SET_ORDER)) {
        continue;
    }
    $base = basename($file, '.tpl');
    foreach ($m as $match) {
        $string = $match[1] !== '' ? $match[1] : (isset($match[2]) ? $match[2] : '');
        $string = stripslashes($string);
        $mod = isset($match[3]) ? $match[3] : '';
        $md5 = md5(str_replace('\'', '\\\'', $string));
        if ($mod === '' && strpos($file, '/modules/') === false || $mod === '' && strpos($file, $theme) === 0 && strpos($file, $theme.'/modules/') === false) {
            $key = $base.'_'.$md5;
            if (empty($themeLang[$key])) {
                $out['theme'][$key] = $string;
            }
        } else {
            if ($mod === '') {
                preg_match('#/modules/([\w-]+)/#', $file, $mm);
                $mod = $mm[1];
            }
            $lang = $moduleLang($mod);
            $md5m = md5($string);
            $k1 = strtolower('<{'.$mod.'}hotel-reservation-theme>'.$base).'_'.$md5m;
            $k2 = strtolower('<{'.$mod.'}prestashop>'.$base).'_'.$md5m;
            if (empty($lang[$k1]) && empty($lang[$k2])) {
                $out['modules'][$mod][$k2] = $string;
            }
        }
    }
}
$counts = array('theme' => count($out['theme']));
foreach ($out['modules'] as $mod => $s) {
    $counts[$mod] = count($s);
}
fwrite(STDERR, json_encode($counts, JSON_PRETTY_PRINT).PHP_EOL);
echo json_encode($out, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);