import 'dart:js_interop';

import 'package:web/web.dart' as web;

const telegramLoginStorageKey = 'mapflow.telegramLoginData';

@JS('window.Telegram.WebApp.initData')
external JSString? get _telegramInitData;

@JS('JSON.stringify')
external JSString _jsonStringify(JSAny? value);

String telegramInitData() => _telegramInitData?.toDart ?? '';

String telegramLoginData() =>
    web.window.localStorage.getItem(telegramLoginStorageKey) ?? '';

void saveTelegramLoginData(JSAny? user) {
  final encoded = _jsonStringify(user).toDart;
  web.window.localStorage.setItem(telegramLoginStorageKey, encoded);
}