function extract_shipment_data(string $text): array
{
    $text = normalize_text($text);
    $isFbsAct = preg_match('/Акт\s+приема-передачи\s+заказов/u', $text) === 1;
    $fbsAct = $isFbsAct ? extract_fbs_act_data($text) : null;
    $deliveryTime = $fbsAct['delivery_time'] ?? parse_delivery_time($text);
    $targetPoint = detect_target_point($text);
    $shipmentType = detect_shipment_type($text, $targetPoint);
    $items = $isFbsAct ? [] : extract_items($text);
    $confidence = 0.1;
    if ($deliveryTime) {
        $confidence += 0.25;
    }
    if ($targetPoint) {
        $confidence += 0.2;
    }
    if (count($items) > 0) {
        $confidence += min(0.45, count($items) * 0.1);
    }
    if ($fbsAct && ($fbsAct['document_number'] || $fbsAct['order_number'])) {
        $confidence += 0.25;
    }
    $result = [
        'delivery_time' => $deliveryTime,
        'target_point' => $targetPoint,
        'shipment_type' => $shipmentType,
        'items' => $items,
        'raw_text' => $text,
        'confidence' => round(min(0.99, $confidence), 2),
        'document_kind' => $isFbsAct ? 'fbs_act' : 'generic',
    ];
    if ($fbsAct) {
        $result['fbs_act'] = $fbsAct;
        if (empty($result['target_point']) && !empty($fbsAct['place_of_supply'])) {
            $result['target_point'] = $fbsAct['place_of_supply'];
        }
        if (empty($result['shipment_type'])) {
            $result['shipment_type'] = 'FBS';
        }
        if (empty($result['delivery_time']) && !empty($fbsAct['delivery_window_start'])) {
            $result['delivery_time'] = $fbsAct['delivery_window_start'];
        }
    }
    return $result;
}
function store_upload(array $file, string $prefix): array
{
    if (($file['error'] ?? UPLOAD_ERR_NO_FILE) !== UPLOAD_ERR_OK) {
        throw new RuntimeException('文件上传失败：' . ($file['error'] ?? '未知错误'));
    }
    if (!is_uploaded_file($file['tmp_name'])) {
        throw new RuntimeException('无效的上传文件');
    }
    if ((int) ($file['size'] ?? 0) > MAX_UPLOAD_SIZE) {
        throw new RuntimeException('文件过大，单文件不能超过 20MB');
    }
    $original = (string) ($file['name'] ?? 'file');
    $ext = strtolower(pathinfo($original, PATHINFO_EXTENSION));
    $allowed = ['pdf', 'png', 'jpg', 'jpeg'];
    if (!in_array($ext, $allowed, true)) {
        throw new RuntimeException('只允许上传 PDF、PNG、JPG、JPEG 文件');
    }
    $folder = storage_path('uploads/' . date('Y/m'));
    if (!is_dir($folder) && !@mkdir($folder, 0777, true) && !is_dir($folder)) {
        throw new RuntimeException('无法创建上传目录');
    }
    $safe = $prefix . '_' . date('Ymd_His') . '_' . bin2hex(random_bytes(4)) . '.' . $ext;
    $destination = $folder . DIRECTORY_SEPARATOR . $safe;
    if (!move_uploaded_file($file['tmp_name'], $destination)) {
        throw new RuntimeException('保存上传文件失败');
    }
    $root = rtrim(storage_path(), "\\/");
    $relative = ltrim(str_replace($root, '', $destination), "\\/");
    return [
        'original_name' => $original,
        'file_path' => $relative,
        'disk_path' => $destination,
        'extension' => $ext,
        'size' => (int) $file['size'],
    ];
}
function store_upload_batch(?array $field, string $prefix): array
{
    $stored = [];
    foreach (file_input_list($field ?? []) as $file) {
        if (($file['error'] ?? UPLOAD_ERR_NO_FILE) === UPLOAD_ERR_NO_FILE) {
            continue;
        }
        $stored[] = store_upload($file, $prefix);
    }
    return $stored;
}
function create_notification(int $shipmentId, string $type, string $title, string $content): void
{
    db_exec(
        'INSERT INTO notifications (shipment_id, notify_type, title, content, is_read, created_at) VALUES (?, ?, ?, ?, 0, NOW())',
        'isss',
        [$shipmentId, $type, $title, $content]
    );
}
function render_header(string $title): void
{
    $user = app_schema_ready() ? current_user() : null;
    $flash = flash_get();
    $countSoon = 0;
    if ($user && table_exists('shipments')) {
        $rows = db_all(
            "SELECT COUNT(*) AS total
             FROM shipments
             WHERE status NOT IN ('done','canceled')
               AND delivery_time IS NOT NULL
               AND delivery_time <= DATE_ADD(NOW(), INTERVAL 24 HOUR)"
        );
        $countSoon = (int) ($rows[0]['total'] ?? 0);
    }
    $lang = current_lang();
    $htmlLang = $lang === 'ru' ? 'ru-RU' : ($lang === 'uz' ? 'uz-UZ' : 'zh-CN');
    echo '<!doctype html><html lang="' . h($htmlLang) . '"><head><meta charset="utf-8">';
    echo '<meta name="viewport" content="width=device-width, initial-scale=1">';
    echo '<title>' . h($title) . ' - ' . h(APP_NAME) . '</title>';
    echo '<!-- ' . h(APP_MARKER) . ' -->';
    echo '<style>
        :root{--bg:#f4f6fb;--card:#fff;--text:#122033;--muted:#64748b;--primary:#1d4ed8;--primary-2:#0f172a;--danger:#b91c1c;--success:#15803d;--warning:#b45309;--border:#d9e2ef;}
        *{box-sizing:border-box}
        body{margin:0;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;background:linear-gradient(180deg,#eef3ff 0%,#f4f6fb 180px,#f4f6fb 100%);color:var(--text)}
        a{color:var(--primary);text-decoration:none}
        .wrap{max-width:1280px;margin:0 auto;padding:24px}
        .topbar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px;flex-wrap:wrap}
        .brand{font-size:22px;font-weight:700;color:var(--primary-2)}
        .nav{display:flex;gap:10px;flex-wrap:wrap}
        .nav a{padding:8px 12px;background:#fff;border:1px solid var(--border);border-radius:10px;color:var(--text)}
        .nav a:hover{border-color:var(--primary)}
        .badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:700}
        .badge.danger{background:#fee2e2;color:#991b1b}
        .badge.success{background:#dcfce7;color:#166534}
        .badge.warning{background:#ffedd5;color:#9a3412}
        .badge.muted{background:#e2e8f0;color:#475569}
        .lang-switch{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
        .lang-switch a{padding:6px 10px;border-radius:999px;border:1px solid var(--border);background:#fff;color:var(--text);font-size:12px}
        .lang-switch a.active{background:var(--primary);border-color:var(--primary);color:#fff}
        .grid{display:grid;gap:16px}
        .grid.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}
        .grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
        .card{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:18px;box-shadow:0 8px 24px rgba(15,23,42,.04)}
        .stat{font-size:30px;font-weight:800;margin:6px 0}
        .muted{color:var(--muted)}
        .table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--border);border-radius:16px;overflow:hidden}
        .table th,.table td{padding:12px 10px;border-bottom:1px solid #eef2f7;text-align:left;vertical-align:top}
        .table th{background:#f8fbff;font-size:13px;color:#334155}
        .table tr:hover td{background:#fcfdff}
        .row-urgent td{background:#fff1f2}
        .btn{display:inline-block;border:none;border-radius:10px;padding:10px 14px;background:var(--primary);color:#fff;cursor:pointer;font-size:14px}
        .btn.secondary{background:#334155}
        .btn.light{background:#e2e8f0;color:#0f172a}
        .btn.danger{background:#dc2626}
        .field{display:grid;gap:8px;margin-bottom:14px}
        label{font-size:14px;font-weight:700;color:#334155}
        input,select,textarea{width:100%;padding:10px 12px;border-radius:10px;border:1px solid #cbd5e1;font-size:14px;background:#fff}
        textarea{min-height:110px;resize:vertical}
        .flash{padding:12px 14px;border-radius:12px;margin-bottom:18px;font-weight:700}
        .flash.success{background:#dcfce7;color:#14532d}
        .flash.error{background:#fee2e2;color:#991b1b}
        .flash.info{background:#dbeafe;color:#1d4ed8}
        .actions{display:flex;gap:10px;flex-wrap:wrap}
        .pre{white-space:pre-wrap;background:#0f172a;color:#e2e8f0;padding:16px;border-radius:14px;overflow:auto}
        .section-title{margin:0 0 12px;font-size:18px}
        .split{display:grid;grid-template-columns:1.2fr .8fr;gap:16px}
        .pill{display:inline-block;padding:4px 8px;border-radius:999px;background:#e2e8f0;color:#0f172a;font-size:12px;font-weight:700}
        .footer{color:#64748b;font-size:12px;margin:20px 0 8px}
        @media (max-width: 1000px){.grid.cols-4,.grid.cols-2,.split{grid-template-columns:1fr}.wrap{padding:14px}}
    </style></head><body><div class="wrap">';
    echo '<div class="lang-switch" style="justify-content:flex-end;margin-bottom:10px">';
    foreach (supported_langs() as $candidate) {
        $active = $candidate === $lang ? 'active' : '';
        echo '<a class="' . h($active) . '" href="?lang=' . h($candidate) . '&r=' . h((string) ($_GET['r'] ?? 'login')) . '">' . h(lang_short_label($candidate)) . '</a>';
    }
    echo '</div>';
    echo '<div class="topbar"><div><div class="brand">' . h(APP_NAME) . '</div><div class="muted">FBO / FBS 上传、识别、下载、提醒一体化后台</div></div>';
    if ($user) {
        echo '<div class="nav">';
        echo '<a href="?r=dashboard">仪表盘</a>';
        echo '<a href="?r=upload">上传单据</a>';
        echo '<a href="?r=logout">退出</a>';