<?php
declare(strict_types=1);

/**
 * Prüft die Mehrsprachigkeit auf echten Seiten: Sprachwechsel über lang.php, übersetzte Kundenportal- und Mitarbeiterseiten, Sammelmodus.
 */

date_default_timezone_set('Europe/Berlin'); // wie in der Test-Installation
$root = dirname(__DIR__);
$work = sys_get_temp_dir() . '/deskhub-i18np-' . bin2hex(random_bytes(4));
$tmp = $work . '/inst';
mkdir($tmp, 0755, true);
$webPort = random_int(37500, 37999);
$skip = '#^(config/config\.php|database/[^/]+\.sqlite[^/]*|backups|uploads|tests|plugins/[^/]+|\.git)(/|$)#';
foreach (new RecursiveIteratorIterator(new RecursiveDirectoryIterator($root, FilesystemIterator::SKIP_DOTS), RecursiveIteratorIterator::SELF_FIRST) as $f) {
    $rel = str_replace(chr(92), '/', substr($f->getPathname(), strlen($root) + 1));
    if (preg_match($skip, $rel) && !preg_match('#^(backups|uploads|plugins)/(\.htaccess|README\.md)$#', $rel)) continue;
    if ($f->isDir()) { @mkdir($tmp . '/' . $rel, 0755, true); continue; }
    @mkdir(dirname($tmp . '/' . $rel), 0755, true);
    copy($f->getPathname(), $tmp . '/' . $rel);
}
@mkdir($tmp . '/uploads');
@mkdir($tmp . '/config');
file_put_contents($tmp . '/config/config.php', '<?php return ' . var_export([
    'app_key' => bin2hex(random_bytes(32)),
    'db' => ['driver' => 'sqlite', 'sqlite_path' => $tmp . '/database/deskhub.sqlite'],
    'site' => ['name' => 'Test', 'url' => 'http://127.0.0.1', 'admin_email' => 'a@test.de', 'timezone' => 'Europe/Berlin'],
    'uploads' => ['max_size_bytes' => 10485760, 'allowed_extensions' => ['png'], 'path' => $tmp . '/uploads'],
], true) . ';');

putenv('DESKHUB_CONFIG_JSON');
putenv('DESKHUB_SQLITE_PATH');
putenv('DESKHUB_TESTING');
putenv('DESKHUB_API_ALLOW_INSECURE=1');
require_once $root . '/database/sqlite_schema.php';
require_once $root . '/database/migrate.php';
$db = new PDO('sqlite:' . $tmp . '/database/deskhub.sqlite');
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$db->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
$db->exec('PRAGMA foreign_keys = ON');
$db->exec(convert_schema_to_sqlite((string) file_get_contents($root . '/database/schema.sql')));
$mig = run_migrations($db, true);
$now = date('Y-m-d H:i:s');
$dept = (int) $db->query('SELECT id FROM departments ORDER BY id LIMIT 1')->fetchColumn();
$db->exec('DELETE FROM staff');
$ins = $db->prepare('INSERT INTO staff (name, email, password_hash, role, department_id, is_active, created_at) VALUES (?,?,?,?,?,1,?)');
$ids = [];
foreach ([['Chef', 'chef@test.de', 'admin'], ['Agent', 'agent@test.de', 'agent']] as [$n, $e, $r]) {
    $ins->execute([$n, $e, password_hash('Sehr-Sicher-1234', PASSWORD_DEFAULT), $r, $dept, $now]);
    $ids[$n] = (int) $db->lastInsertId();
}
$db = null;

$failures = [];
$total = 0;
$check = function (bool $ok, string $what) use (&$failures, &$total): void { $total++; if (!$ok) $failures[] = $what; };
$webProc = proc_open([PHP_BINARY, '-S', "127.0.0.1:$webPort", '-t', $tmp], [['pipe', 'r'], ['file', $work . '/web.out', 'w'], ['file', $work . '/web.out', 'a']], $wp, $tmp);

try {
    for ($i = 0; $i < 50; $i++) { if (@fsockopen('127.0.0.1', $webPort)) break; usleep(100000); }
    $pdo = function () use ($tmp): PDO {
        $p = new PDO('sqlite:' . $tmp . '/database/deskhub.sqlite');
        $p->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
        $p->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
        return $p;
    };
    // Sprachpakete in die Test-Installation einspielen (wie über Plugins → Hochladen)
    putenv('DESKHUB_SQLITE_PATH=' . $tmp . '/database/deskhub.sqlite');
    $zips = [];
    foreach (['lang-en', 'lang-de'] as $slug) {
        $src = $root . '/../Plugins/plugins/' . $slug;
        $zp = $work . '/' . $slug . '.zip';
        if (!is_dir($src)) { // nur die gepackten Versionen vorhanden: das neueste ZIP verwenden
            $packed = glob($root . '/../Plugins/plugins/' . $slug . '-*.zip') ?: [];
            usort($packed, 'version_compare');
            if ($packed) { copy(end($packed), $zp); $zips[] = $zp; }
            continue;
        }
        $z = new ZipArchive();
        $z->open($zp, ZipArchive::CREATE);
        foreach (new RecursiveIteratorIterator(new RecursiveDirectoryIterator($src, FilesystemIterator::SKIP_DOTS)) as $f) $z->addFile($f->getPathname(), str_replace(chr(92), '/', substr($f->getPathname(), strlen($src) + 1)));
        $z->close();
        $zips[] = $zp;
    }
    $script = $work . '/install.php';
    file_put_contents($script, "<?php\nrequire " . var_export($tmp . '/includes/bootstrap.php', true) . ";\n\$pdo = get_db();\nforeach (" . var_export($zips, true) . " as \$z) { \$r = plugin_install_zip(\$pdo, \$z); if (!\$r['ok']) { echo 'FEHLER ' . \$r['error']; exit(1); } plugin_set_active(\$pdo, \$r['slug'], true, []); }\necho 'ok';");
    $out = (string) shell_exec(escapeshellarg(PHP_BINARY) . ' ' . escapeshellarg($script) . ' 2>&1');
    $check(trim($out) === 'ok', 'Sprachpakete in der Test-Installation installiert: ' . $out);

    $call = function (string $method, string $path, string $jar, array $form = [], array $headers = []) use ($webPort): array {
        $ch = curl_init("http://127.0.0.1:$webPort$path");
        curl_setopt_array($ch, [CURLOPT_RETURNTRANSFER => true, CURLOPT_FOLLOWLOCATION => false, CURLOPT_HEADER => true, CURLOPT_TIMEOUT => 60, CURLOPT_COOKIEJAR => $jar, CURLOPT_COOKIEFILE => $jar, CURLOPT_HTTPHEADER => array_merge(['Sec-Fetch-Mode: navigate'], $headers)]);
        if ($method === 'POST') { curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($form)); }
        $raw = (string) curl_exec($ch);
        $s = (int) curl_getinfo($ch, CURLINFO_RESPONSE_CODE);
        $hs = (int) curl_getinfo($ch, CURLINFO_HEADER_SIZE);
        curl_close($ch);
        return [$s, substr($raw, $hs), substr($raw, 0, $hs)];
    };
    $jar = fn() => tempnam(sys_get_temp_dir(), 'i18n');

    // Gast: erst deutsch, mit Flaggen
    $g = $jar();
    [$s, $b] = $call('GET', '/login.php', $g);
    $check($s === 200 && str_contains($b, 'Passwort vergessen?') && str_contains($b, '<html lang="de">') && substr_count($b, 'class="lang-switch"') === 1 && substr_count($b, 'data:image/svg+xml;base64') >= 2, 'Anmeldeseite: deutsch, mit Sprachwechsler (zwei Flaggen)');
    // Wechsel zu English
    [$s, , $h] = $call('GET', '/lang.php?l=en&back=%2Flogin.php', $g);
    $check($s === 302 && preg_match('#^Location: /login\.php#mi', $h) === 1 && stripos($h, 'Set-Cookie: deskhub_lang=en') !== false && stripos($h, 'SameSite=Lax') !== false, 'lang.php setzt das Cookie und springt zurück');
    [$s, $b] = $call('GET', '/login.php', $g);
    $check(str_contains($b, 'Forgot your password?') && str_contains($b, '<html lang="en">') && !str_contains($b, 'Passwort vergessen?'), 'Anmeldeseite ist englisch');
    [, $b] = $call('GET', '/ticket_new.php', $g);
    $check(str_contains($b, 'Create new ticket') && str_contains($b, 'Subject') && str_contains($b, 'Open a new ticket') | str_contains($b, 'Support center home'), 'Neues Ticket ist englisch');
    [, $b] = $call('GET', '/ticket_lookup.php', $g);
    $check(str_contains($b, 'Check ticket status') || str_contains($b, 'Ticket number'), 'Ticketstatus-Seite ist englisch');
    [, $b] = $call('GET', '/staff/login.php', $g);
    $check(str_contains($b, '<html lang="en">') && str_contains($b, 'class="lang-switch"'), 'Mitarbeiter-Anmeldung: englisch, mit Wechsler');
    // Ungültiges wird ignoriert
    $g2 = $jar();
    [$s, , $h] = $call('GET', '/lang.php?l=zz&back=https%3A%2F%2Fevil.example', $g2);
    $check($s === 302 && stripos($h, 'deskhub_lang') === false && preg_match('#^Location: /\s*$#mi', $h) === 1, 'unbekannte Sprache und fremde Rücksprung-Adresse werden ignoriert');
    [$s, , $h] = $call('GET', '/lang.php?l=en&back=%2F%2Fevil.example', $g2);
    $check(preg_match('#^Location: /\s*$#mi', $h) === 1, 'Rücksprung-Adresse mit // wird verworfen');

    // Mitarbeiterbereich auf Englisch
    $adm = $jar();
    [, $lp] = $call('GET', '/staff/login.php', $adm);
    preg_match('/name="csrf_token" value="([a-f0-9]+)"/', $lp, $m);
    $call('POST', '/staff/login.php', $adm, ['csrf_token' => $m[1] ?? '', 'email' => 'chef@test.de', 'password' => 'Sehr-Sicher-1234']);
    $call('GET', '/lang.php?l=en&back=%2F', $adm);
    [$s, $b] = $call('GET', '/staff/departments.php', $adm);
    $check($s === 200 && str_contains($b, '<html lang="en">') && str_contains($b, 'Departments') && str_contains($b, 'Sign out') && str_contains($b, 'class="lang-switch"'), 'Mitarbeiterseite ist englisch, Wechsler in der Seitenleiste');
    $call('GET', '/lang.php?l=de&back=%2F', $adm);
    [, $b] = $call('GET', '/staff/departments.php', $adm);
    $check(str_contains($b, 'Abteilungen') && str_contains($b, 'Abmelden'), 'zurück auf Deutsch');

    // Seite „Sprachen“, Standardsprache, Sammelmodus
    [$s, $b] = $call('GET', '/staff/languages.php', $adm);
    $check($s === 200 && str_contains($b, 'English') && str_contains($b, 'lang-en') && str_contains($b, 'Vorlage laden'), 'Seite „Sprachen“ zeigt die installierten Sprachen');
    preg_match('/name="csrf_token" value="([a-f0-9]+)"/', $b, $m);
    $call('POST', '/staff/languages.php', $adm, ['csrf_token' => $m[1] ?? '', 'action' => 'save', 'default_language' => 'en', 'i18n_collect' => '1']);
    $fresh = $jar();
    [, $b] = $call('GET', '/login.php', $fresh);
    $check(str_contains($b, 'Forgot your password?') && str_contains($b, '<html lang="en">'), 'Standardsprache gilt für Besucher ohne Cookie');
    $call('GET', '/lang.php?l=de&back=%2F', $fresh);
    $call('GET', '/login.php', $fresh);
    $call('GET', '/ticket_lookup.php', $fresh);
    $check((int) $pdo()->query('SELECT COUNT(*) FROM i18n_missing')->fetchColumn() > 3, 'Sammelmodus merkt sich Texte, auch im deutschen Modus');
    [$s, $b, $h] = $call('GET', '/staff/languages.php?download=en', $adm);
    $tpl = json_decode($b, true);
    $check($s === 200 && is_array($tpl) && stripos($h, 'application/json') !== false && stripos($h, 'attachment') !== false && ($tpl['Anmelden'] ?? null) === 'Sign in', 'Vorlage zum Herunterladen: vorhandene Übersetzungen eingetragen');
    // Schnittstellen bleiben unberührt (JSON)
    [$s, $b] = $call('POST', '/api/staff/v1/login.php', $fresh, [], ['Content-Type: application/json']);
    $check(json_decode($b, true) !== null, 'Schnittstelle liefert weiter reines JSON');
    [$s, $b] = $call('POST', '/staff/languages.php', $adm, ['csrf_token' => 'falsch', 'action' => 'clear']);
    $check($s === 403, 'Löschen der gesammelten Texte braucht das CSRF-Token');
    // Nicht-Admins kommen nicht auf die Seite
    $ag = $jar();
    [, $lp] = $call('GET', '/staff/login.php', $ag);
    preg_match('/name="csrf_token" value="([a-f0-9]+)"/', $lp, $m);
    $call('POST', '/staff/login.php', $ag, ['csrf_token' => $m[1] ?? '', 'email' => 'agent@test.de', 'password' => 'Sehr-Sicher-1234']);
    [$s, , $h] = $call('GET', '/staff/languages.php', $ag);
    $check($s === 302, 'Mitarbeiter ohne Adminrechte werden von der Seite „Sprachen“ umgeleitet');
} finally {
    if (isset($webProc) && is_resource($webProc)) { proc_terminate($webProc); proc_close($webProc); }
}

usleep(300000);
$rm = function (string $d) use (&$rm) {
    foreach (scandir($d) ?: [] as $e) { if ($e === '.' || $e === '..') continue; is_dir("$d/$e") && !is_link("$d/$e") ? $rm("$d/$e") : @unlink("$d/$e"); }
    @rmdir($d);
};
if (str_starts_with($work, sys_get_temp_dir() . '/deskhub-i18np-')) $rm($work);

if ($failures) {
    fwrite(STDERR, "Fehlgeschlagen:\n - " . implode("\n - ", $failures) . "\n");
    exit(1);
}
echo "i18n pages checks passed ({$total} Prüfungen).\n";