<?php
class Page extends SiteTree {
    private static $allowed_children = array ('*Page'); // Only Base Class Pages can be created as children.

    private static $db = array(
    );

    private static $has_one = array(
    );

}
class Page_Controller extends ContentController {

    /**
     * An array of actions that can be accessed via a request. Each array element should be an action name, and the
     * permissions or conditions required to allow the user to access it.
     *
     * <code>
     * array (
     *     'action', // anyone can access this action
     *     'action' => true, // same as above
     *     'action' => 'ADMIN', // you must have ADMIN permissions to access this action
     *     'action' => '->checkAction' // you can only access this action if $this->checkAction() returns true
     * );
     * </code>
     *
     * @var array
     */
    private static $allowed_actions = array (
    );

    public function __construct(){
        echo __FILE__ . " on line " . __LINE__ . "<br>";
        parent::__construct();
    }

    public function init() {
        parent::init();
        // You can include any CSS or JS required by your project here.
        // See: http://doc.silverstripe.org/framework/en/reference/requirements
    }

    public function getPagesWithDepth(){
        echo __FILE__ . " on line " . __LINE__ . "<br>";
        $pageList = new ArrayList();
        foreach( SiteTree::get() as $menuPage){
            $pageList->push( ArrayData::create([
                'title' => $menuPage->getTitle(),
                'id' => $menuPage->ID,
                'depth' => $this->getHDepth($menuPage),
                'parentId' => ($menuPage->getParent())? $menuPage->getParent()->ID : 0
            ]));
        }
        return $pageList;
    }

    public function getHDepth( Page $menuPage){
        if($menuPage->getParent()){
            return $this->getHDepth($menuPage->getParent()) +1;
        }
        return 0; // stopping case
    }


}