import { AuthTokens, JWTIDToken, AuthStorageProxyType } from './types';
import { isEmpty } from './util';
const authKey = 'CIAM_AUTH_STORAGE';
const userKey = 'CIAM_USER_STORAGE';
export class BaseAuthProxy {
  private auth?: AuthTokens | null;
  private user?: JWTIDToken | null;

  constructor() {
    this.auth = null;
    this.user = null;
  }
  setAuth(auth: AuthTokens): void {
    if (typeof localStorage !== 'undefined') {
      window.localStorage.setItem(authKey, JSON.stringify(auth));
    } else {
      this.auth = auth;
    }
  }

  getAuth(): AuthTokens {
    return typeof localStorage !== 'undefined' ? JSON.parse(window.localStorage.getItem(authKey) || '{}') : this.auth;
  }

  clearAuth(): void {
    if (typeof localStorage !== 'undefined') {
      localStorage.removeItem(authKey);
    } else {
      this.auth = null;
    }
  }

  getToken(): string | null {
    const auth: AuthTokens = this.getAuth();
    if (isEmpty(auth)) return null;
    return auth?.access_token;
  }

  getUser() {
    return typeof localStorage !== 'undefined' ? JSON.parse(window.localStorage.getItem(userKey) || '{}') : this.user;
  }

  setUser(user: JWTIDToken) {
    if (typeof localStorage !== 'undefined') {
      window.localStorage.setItem(userKey, JSON.stringify(user));
    } else {
      this.user = user;
    }
  }

  clearUser() {
    if (typeof localStorage !== 'undefined') {
      localStorage.removeItem(userKey);
    } else {
      this.user = null;
    }
  }

  clear() {
    this.clearAuth();
    this.clearUser();
  }
}

function createAuthLocal(): AuthStorageProxyType {
  return new BaseAuthProxy();
}

export default createAuthLocal;