<?php
/**
 * Creates the submenu item for the plugin.
 *
 * Registers a new menu item under 'Admin' group and uses the dependency passed into
 * the constructor in order to display the page corresponding to this menu item.
 *
 * @package ZGo-Payments
 */
class Submenu {

	/**
	 * A reference the class responsible for rendering the submenu page.
	 *
	 * @var Submenu_Page
	 * @access private
	 */
	private $submenu_page;

	/**
	 * Initializes all of the partial classes.
	 *
	 * @param Submenu_Page $submenu_page A reference to the class that renders the
	 * page for the plugin.
	 */
	public function __construct( $submenu_page ) {
		$this->submenu_page = $submenu_page;
	}

	/**
	 * Adds a submenu for this plugin to the 'Tools' menu.
	 */
	public function init() {
		add_action( 'admin_menu', array( $this, 'add_options_page' ) );
	}

	/**
	 * Creates the submenu item and calls on the Submenu Page object to render
	 * the actual contents of the page.
	 */
	public function add_options_page() {

		add_options_page(
			'ZGo Payment Gateway Support',
			'ZGo Payments',
			'manage_options',
			'zgopmtlist',
			array( $this->submenu_page, 'render' )
		);
	}

}