<?php

class Pw_Wp_Menu {
	/**
	 * Server object
	 *
	 * @var WP_JSON_ResponseHandler
	 */
	protected $server;

	protected $options;
	
	protected $accountOptions;
	

	/**
	 * Constructor
	 *
	 * @param WP_JSON_ResponseHandler $server Server object
	 */
	public function __construct( WP_JSON_ResponseHandler $server ) {
		$this->server = $server;
		$this->options = get_option("pw-mobile-app");
		$this->accountOptions = get_option("androapp_account_settings");
	}

	/**
	 * Register the user-related routes
	 *
	 * @param array $routes Existing routes
	 * @return array Modified routes
	 */
	public function register_routes( $routes ) {
		$user_routes = array(
			// /users/me is an alias, and simply redirects to /users/<id>
			'/pwmenu' => array(
				array( array( $this, 'get_menu' ), WP_JSON_Server::READABLE ),
			),
			'/androappconfig' => array(
				array( array( $this, 'get_config' ), WP_JSON_Server::READABLE ),
			),
			'/androappauthcheck' => array(
				array( array( $this, 'check_auth' ), WP_JSON_Server::READABLE ),
			),
		);
		return array_merge( $routes, $user_routes );
	}

	public function check_auth( $key, $context = 'view' ) {
		$buildOptions = get_option("pw-mobile-build-options");
		if(!empty($key) && $buildOptions['authentication_key'] == $key){
			return "valid";
		}
		return "Key not valid";
	}
	
	public function get_config( $context = 'view' ) {
		$config = array();
		$config['menulist'] = $this->get_menu();
		$config['monetise'] = $this->get_monetise();
		return $config;
	}
	
	private function get_monetise(){
		return array(
			"topAdUnitId" => $this->accountOptions[pw_mobile_app_settings::$topAdUnitKey],
			"bottomAdUnitId" => $this->accountOptions[pw_mobile_app_settings::$bottomAdUnitKey],
			"listViewAdUnitId" => $this->accountOptions[pw_mobile_app_settings::$listViewAdUnitKey],
			"listViewAdFreq" => $this->accountOptions[pw_mobile_app_settings::$listViewAdUnitFreqKey],
			"listViewAdType" => $this->accountOptions[pw_mobile_app_settings::$listViewAdUnitTypeKey],
			"interstitialAdUnitId" => $this->accountOptions[pw_mobile_app_settings::$interstitialAdUnitKey],
			"interstitialAdFreq" => $this->accountOptions[pw_mobile_app_settings::$interstitialAdUnitFreqKey]		
		);
	}
	/*
	reference: https://github.com/mcnasby/wp-json-api-menu-controller/blob/master/api-controllers/menus.php
	*/
  public function get_menu( $context = 'view' ) {
     	$id = $this->options['app_menu'];
	// Make sure we have key/value query vars
	if ( $id ) {
		
		
		function getJsonLink($objectType, $objectId, $url){
			if($objectType =="category"){
				return json_url("/taxonomies/category/terms/".$objectId);
			}else if($objectType =="page"){
				return json_url("/pages/".$objectId);
			}else if($objectType =="pose"){
				return json_url("/posts/".$objectId);
			} else {
				return $url;
			}
		}

		function get_nav_items($id) {
			global $json_api;

			$menu_output = wp_get_nav_menu_items( $id );
			//print_r($menu_output);
			if($menu_output)
			{
				$filtered_items = array_map(function($el){
					
					$filter = array(
						"id"=>$el->ID,
						"parent_id"=>$el->menu_item_parent,
						"menu_order"=>$el->menu_order,
						"name"=>$el->title,
						"object_type"=>$el->object,
						"object_id"=>($el->object == "custom" ? "" : $el->object_id ),
						"link"=> getJsonLink($el->object,$el->object_id, $el->url)
					);
					return $filter;
				}, $menu_output);

				$output = ( false ? $menu_output : $filtered_items);
				$count = count($output);
			}
			else{
				$count = 0;
			}

			if ($count == "0") {
				return array(
					"output" => "Empty Menu",
					"count" => $count
				);
			} else {
				return array(
					"output" => $output,
					"count" => $count
				);
				
			}
			
		}

		if ($id) {
			$menuid = $id;
			$menuloc = "";
			$menu_items = get_nav_items($menuid);
		}
		if($menu_items["count"] == 0){
			return new WP_Error( 'json_invalid_menu_id', __( 'Invalid or Empty Menu.' ), array( 'status' => 400 ) );
		}
	    return $menu_items["output"];
		
		/*array(
	     	"count" => $menu_items["count"],
	     	"menu_location" => $menuloc,
	     	"menu_id" => $menuid,
	     	"menu" => $menu_items["output"]
		);*/

	} else {
		return new WP_Error('json_invalid_menu_id', "Include the parameter 'menu_id' with an appropriate string value.", array( 'status' => 400 ));
	}
  }
}
?>