import VBase from './vbase.js'

export default async ($env) => {
  // Load i18n
  try {
    const langs = await (await fetch('/langs.json')).json()
    $env.$i18n.load(langs)
  } catch (e) {
    console.error('Failed to load langs.json', e)
  }

  // Initialize VBase Service
  const vbase = new VBase(''); // Relative path
  $env.$vbase = vbase;
  
  // Wrap Axios
  vbase.wrapAxios($env.$axios);

  // Router Guard
  $env.$router.beforeEnter = async (to, from, next) => {
    const isAuth = to.meta && to.meta.auth;
    const isGuest = to.meta && to.meta.guest;
    const roles = to.meta && to.meta.roles; // Array of required roles

    if (isAuth) {
      if (vbase.isExpired()) {
        try {
            await vbase.refresh();
        } catch (e) {
            vbase.logout(to.fullPath);
            return false;
        }
      }
      
      if (!vbase.user) {
          try {
              await vbase.fetchUser();
          } catch (e) {
              vbase.logout(to.fullPath);
              return false;
          }
      }

      // Role Check
      if (roles && roles.length > 0) {
          const hasRole = roles.some(role => vbase.hasRole(role));
          if (!hasRole) {
              $env.$router.push('/403');
              return false;
          }
      }
    } else if (isGuest) {
      if (!vbase.isExpired()) {
        next('/');
        return false;
      }
    }
    
    next();
  };
}