<?php
if ( ! class_exists( 'oxoScriptsClass' ) )
{
    add_action( 'init', array( 'oxoScriptsClass', 'init' ) );

/**
 * Loads all styles and scripts
 */
class oxoScriptsClass
{
    /**
     * The Class Object
     */
    static private $class = NULL;
    static $nearby_nonce_val    = 'neary-nonce-val';


    /**
     * Handler for the action 'init'. Instantiates this class.
     *
     * @return void
     */
    public static function init()
    {
        if ( null === self::$class )
            self::$class = new self;

        return self::$class;
    }


    /**
     * Construct
     *
     * @return void
     */
    public function __construct()
    {
        // Custom function
        if ( is_login() )
            return;

        add_action( 'wp_enqueue_scripts', array( &$this, 'switch_jquery_google_cdn' ), 20 );
        add_action( 'wp_enqueue_scripts', array( &$this, 'load_jquery' ), 20 );

        # >>>> AJAX
        add_action( 'wp_enqueue_scripts', array( &$this, 'ajax_search' ), 30 );

        // Ajax Callbacks
        add_action( 'wp_ajax_nopriv_nearby_locations',  array( &$this, 'nearby_locations_cb' ) );
        add_action( 'wp_ajax_nearby_locations', array( &$this, 'nearby_locations_cb' ) );
        # <<<<

        // DEV & DEBUG
        if ( $this->debug AND current_user_can( 'manage_options' ) )
            add_action( 'shutdown', array( &$this, '_dev' ) );
    }


    /**
     * Load jQuery from Google CDN
     * Fallback is WP core
     *
     * @since 0.3
     * @return void
     */
    public function switch_jquery_google_cdn()
    {
        global $wp_scripts;

        $http = is_ssl() ? 'https' : 'http';
        $ver  = wp_script_is( 'jquery', 'registered' ) ? $wp_scripts->registered['jquery']->ver : '1';
        $min  = defined( SCRIPT_DEBUG ) && SCRIPT_DEBUG ? '' : '.min';
        $src  = "{$http}://ajax.googleapis.com/ajax/libs/jquery/{$ver}/jquery{$min}.js";

        wp_deregister_script( 'jquery' );
        wp_register_script( 'jquery', $src, array(), null, true );
    }


    /**
     * Enqueue jQuery
     *
     * @since 0.3
     * @return void
     */
    public function load_jquery()
    {
        wp_enqueue_script( 'jquery' );
    }


    /**
     * Registers & enqueues ajax script related stuff
     * For public search
     *
     * @since 0.3
     *
     * @return void
     */
    public function ajax_search()
    {
        wp_register_script( 'json2', false, array(), false, true );

        $url    = get_stylesheet_directory_uri().'/lib/search/js';
        $deps   = array( 'jquery', 'jquery-form', 'json2' );

        wp_register_script( 'nearby-locations-script',  "{$url}/nearby_location.js", $deps, false, true );

        wp_enqueue_script( 'json2' );
        // Ajax: Location
        wp_enqueue_script( 'nearby-locations-script' );
        wp_localize_script(
             'nearby-locations-script'
            ,'nearby_locations_object'
            ,array(
                 'ajaxurl'      => admin_url( 'admin-ajax.php' )
                ,'nearby_nonce' => wp_create_nonce( self :: $nearby_nonce_val )
                ,'action'       => 'nearby_locations'
                ,'type'         => null
                ,'distance'     => null
                ,'entry'        => null
             )
        );
# DEBUG:
# echo '<pre>'; print_r( $GLOBALS['wp_filter'][ "wp_ajax_nopriv_nearby-parties" ] ); echo '</pre>';
    }


    /**
     * Ajax cb fn for
     *
     * @since 0.4
     *
     * @return string json result
     */
    public function nearby_locations_cb()
    {
        # check_ajax_referer( 'neary-nonce-val', 'nearby_nonce' );
echo '<h1>NEARBY LOCATIONS CALLBACK FUNCTION</h1>';
        var_dump( $_REQUEST );
        var_dump( $_POST );
        var_dump( $_GET );

        $data = $_REQUEST;

        $package = json_encode( array(
             'data' => 'FOO'
             ,'bla' => $_POST
             ,'data'=> $data
        ) );
        $response = "{$_GET['callback']} ( {$package} )";

        header( "Content-Type: application/json" );
        echo $response;
        exit;
    }
} // END Class oxoThemeStylesScripts

} // endif;