Sign in system with access roles/permission

[Marvin]

Hi,

I'm still new at processwire, i want to ask, i was create a website with sign in system, but i want to add a access roles/permission for each user at my website. For now, i just can create a login user without any permission and the user data became as a pages in my processwire.

Here i attach my code for login

<?php 
  $note = $note2 = $hidden ="";

  if($input->get->id == "logout") {
    $session->remove('login_id');
  }

  if($input->post->submit) {
    $email = $sanitizer->email($input->post->email);
    $pass = $sanitizer->text($input->post->pass);
    $result = $pages->find("email=$email, text_1=$pass");

  if(!$email || !$pass) {
    $note = "Data belum lengkap";
  } else {
    if($result->count > 0) {
      $session->login_id = "$result";
      $hidden = "style = 'diplay:none'";
      $url=$pages->get("/files/")->httpUrl;
      header("Location:$url");
      die();
    } else {
      $note = "Akun tidak ditemukan";
    }
  }
}
?>

And this code for login form

<div class="frow-container">
  <div class="frow centered mt-50">
    <div class="col-md-1-3">
      <div class="box p-40 shadow-light">
        <h2 class="mb-20 text-center" <?=$hidden?>>Database Partitur<br>GII HIT</h2>
        <form method="post" <?=$hidden?>>
          <label>Username <input type="text" name="email"></label>
          <label>Password <input type="password" name="pass"></label>
          <input type="submit" name="submit" value="Masuk">
        </form>
        <p class="notif"><?=$note;?></p>
        <div class="text-center"><?=$note2;?></div>
      </div>
    </div>
  </div>
</div>

Just for remember, my user data now is a pages, and i cannot give any permission to user data.

Thank you very much for help.