import { ActivatedRouteSnapshot, CanActivateFn, RouterStateSnapshot, UrlTree } from '@angular/router';
import { AuthGuardData, createAuthGuard } from 'keycloak-angular';

export async function isAuthenticated(
  _route: ActivatedRouteSnapshot,
  state: RouterStateSnapshot,
  authData: AuthGuardData
): Promise<boolean | UrlTree> {
  const { authenticated, keycloak } = authData;

  if (!authenticated) {
    await keycloak.login({ redirectUri: window.location.origin + state.url });
    return false;
  }

  return true;
}

export const requireAuthGuard: CanActivateFn = createAuthGuard<CanActivateFn>(isAuthenticated);