<?php

namespace Yuvayana\Acadlix\Common\Submenu;

defined('ABSPATH') || exit();

class Submenu_Categories
{
  private static $_instance = null;

  protected $_options = [];

  public function __construct()
  {
    $this->_options = [
      'parent_slug' => ACADLIX_SLUG,
      'page_title' => __('Acadlix Course Category', 'acadlix'),
      'menu_title' => __('Categories', 'acadlix'),
      'capability' => 'acadlix_manage_course_categories',
      'menu_slug' => 'edit-tags.php?taxonomy=' . ACADLIX_COURSE_CATEGORY_TAXONOMY,
      'callback' => '',
      'position' => 500
    ];
  }

  public function get_position()
  {
    return $this->_options['position'] ?? 500;
  }

  public function add_submenu()
  {
    $page = add_submenu_page(
      $this->_options['parent_slug'],
      $this->_options['page_title'],
      $this->_options['menu_title'],
      $this->_options['capability'],
      $this->_options['menu_slug'],
      $this->_options['callback'],
      $this->_options['position']
    );

    add_action("admin_print_scripts-{$page}", [$this, 'admin_print_scripts']);
  }

  public function admin_print_scripts()
  {

  }

  public static function instance()
  {
    if (is_null(self::$_instance)) {
      self::$_instance = new self();
    }

    return self::$_instance;
  }
}