import AsyncStorage from '@react-native-async-storage/async-storage';

export function snakeToCamelCase(val) {
  return val.replace(/_([a-z])/g, (g) => g[1].toUpperCase());
}

export function fetchWithTimeout(url, options, timeout = 10000) {
  /** Wraps fetch to allow it to time out */
  // FIXME: show timeout message in UI
  return Promise.race([
    fetch(url, options),
    new Promise((_, reject) => {
      setTimeout(() => {
        reject(new Error('Fetch request timed out'));
      }, timeout);
    }),
  ]);
}

export async function migrateReduxPersistFourToFive(registerUserSuccess) {
  const authedKey = 'reduxPersist:isAuthenticated';
  const userKey = 'reduxPersist:user';
  const userTokenKey = 'reduxPersist:userToken';
  const v4Keys = [authedKey, userKey, userTokenKey];

  const asyncStorageKeys = await AsyncStorage.getAllKeys();
  if (v4Keys.some((key) => !asyncStorageKeys.includes(key))) {
    return;
  }

  const isAuthenticated = await AsyncStorage.getItem(authedKey);
  console.log(authedKey, isAuthenticated);
  if (isAuthenticated !== 'true') {
    await AsyncStorage.multiRemove(v4Keys);
    return;
  }

  const userToken = await AsyncStorage.getItem(userTokenKey);
  console.log(userTokenKey, userToken);
  const user = await AsyncStorage.getItem(userKey);
  console.log(userKey, user, JSON.parse(user));
  registerUserSuccess({ auth_token: JSON.parse(userToken), ...JSON.parse(user) });
  await AsyncStorage.multiRemove(v4Keys);
  console.log('successfully migrated to new redux-persist');
}