<?php
/**
 * Lists back-office strings without a German translation (iso arg, default de).
 *   docker compose ... exec -u www-data app php docker/find-missing-admin-translations.php de > missing.json
 * Covers the hotel modules' admin controllers/classes/templates and the core admin pages
 * the reception works with (orders, customers, carts, guest registration).
 * Output: {"modules": {mod: {key: english}}, "core": {key: english}}
 */
if (PHP_SAPI !== 'cli') {
    exit;
}
$iso = isset($argv[1]) ? $argv[1] : 'de';
$root = realpath(__DIR__.'/..');

$modules = array('hotelreservationsystem', 'qlohotelreview', 'qlocmconnector', 'wkroomsearchblock', 'blocknavigationmenu', 'qlocrontaskmanager');
$coreControllers = array('AdminOrders', 'AdminCustomers', 'AdminCarts', 'AdminGuestRegistration', 'AdminAddresses', 'AdminDashboard', 'AdminLogin');
$coreTplDirs = array('orders', 'customers', 'carts', 'guest_registration', 'addresses', 'dashboard', 'login');

$rePhp = '/->l\(\s*\'((?:[^\'\\\\]|\\\\.)*)\'(?:\s*,\s*\'([^\']*)\')?/';
$reTpl = '/\{l\s+s=(?:\'((?:[^\'\\\\]|\\\\.)*)\'|"((?:[^"\\\\]|\\\\.)*)")(?:[^}]*?\smod=[\'"]([\w-]+)[\'"])?[^}]*\}/';

function files($dir, $ext)
{
    $out = array();
    if (!is_dir($dir)) {
        return $out;
    }
    $it = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir, FilesystemIterator::SKIP_DOTS));
    foreach ($it as $f) {
        if (substr($f, -strlen($ext)) === $ext) {
            $out[] = (string)$f;
        }
    }
    return $out;
}

$out = array('modules' => array(), 'core' => array());

// core admin pack: module strings fall back to any admin translation with the same md5
$_LANGADM = array();
if (is_file("$root/translations/$iso/admin.php")) {
    include "$root/translations/$iso/admin.php";
}
$haveMd5 = array();
foreach ($_LANGADM as $k => $v) {
    if ($v !== '') {
        $haveMd5[substr($k, -32)] = true;
    }
}

// ---- modules
foreach ($modules as $mod) {
    $_MODULE = array();
    foreach (array("$root/modules/$mod/translations/$iso.php", "$root/themes/hotel-reservation-theme/modules/$mod/translations/$iso.php") as $f) {
        if (is_file($f)) {
            include $f;
        }
    }
    $have = $_MODULE;
    $add = function ($source, $string) use (&$out, $have, $mod, $haveMd5) {
        $key = strtolower('<{'.$mod.'}prestashop>'.$source).'_'.md5($string);
        // module strings do NOT fall back to the admin pack at runtime: report them all
        if (empty($have[$key])) {
            $out['modules'][$mod][$key] = $string;
        }
    };
    foreach (files("$root/modules/$mod", '.php') as $f) {
        if (strpos($f, '/translations/') !== false || strpos($f, '/vendor/') !== false) {
            continue;
        }
        if (!preg_match_all($rePhp, file_get_contents($f), $m, PREG_SET_ORDER)) {
            continue;
        }
        $base = basename($f, '.php');
        foreach ($m as $x) {
            $string = stripslashes($x[1]);
            if (!empty($x[2])) {
                $source = $x[2];
            } elseif (preg_match('/Controller$/', $base) && strpos($f, '/controllers/admin/') !== false) {
                $source = $base; // ModuleAdminController -> "<class>controller"
            } elseif (strpos($f, '/controllers/') !== false) {
                $source = preg_replace('/\.php$/', '', basename($f)); // front controller file name
            } else {
                $source = $mod;
            }
            $add($source, $string);
        }
    }
    foreach (files("$root/modules/$mod/views/templates/admin", '.tpl') as $f) {
        if (!preg_match_all($reTpl, file_get_contents($f), $m, PREG_SET_ORDER)) {
            continue;
        }
        foreach ($m as $x) {
            $string = stripslashes($x[1] !== '' ? $x[1] : $x[2]);
            $add(basename($f, '.tpl'), $string);
        }
    }
}

// ---- core admin
$addCore = function ($class, $string) use (&$out, $_LANGADM, $haveMd5) {
    $md5 = md5($string);
    if (empty($_LANGADM[$class.$md5]) && empty($haveMd5[$md5])) {
        $out['core'][$class.$md5] = $string;
    }
};
foreach ($coreControllers as $c) {
    $f = "$root/controllers/admin/{$c}Controller.php";
    if (is_file($f) && preg_match_all($rePhp, file_get_contents($f), $m, PREG_SET_ORDER)) {
        foreach ($m as $x) {
            $addCore($c, stripslashes($x[1]));
        }
    }
}
foreach ($coreTplDirs as $i => $dir) {
    $class = isset($coreControllers[$i]) ? $coreControllers[$i] : 'AdminTab';
    foreach (files("$root/admin-dev/themes/default/template/controllers/$dir", '.tpl') as $f) {
        if (preg_match_all($reTpl, file_get_contents($f), $m, PREG_SET_ORDER)) {
            foreach ($m as $x) {
                if (!empty($x[3])) {
                    continue; // module string inside a core template
                }
                $addCore($class, stripslashes($x[1] !== '' ? $x[1] : $x[2]));
            }
        }
    }
}

$counts = array('core' => count($out['core']));
foreach ($out['modules'] as $mod => $s) {
    $counts[$mod] = count($s);
}
fwrite(STDERR, json_encode($counts).PHP_EOL);
echo json_encode($out, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);