<?php
/**
 * @package ogre-obfuscation
 * @author cleverogre
 * @version 0.2.0
 * @since 0.1.0
 */

namespace Ogre\Obfuscation;

use Ogre\Singleton;
use Ogre\Obfuscation;

defined('ABSPATH') || exit;

final class Filter {
    use Singleton;

    protected function __construct() {
        add_action('wp', array($this, 'init'));
    }

    public function init() {
        if (!email_enabled()) return;

        add_action('wp_enqueue_scripts', array($this, 'enqueue_scripts'));

        add_action('the_content', array($this, 'filter_content'), 100, 1);
        add_filter('wp_nav_menu_items', array($this, 'filter_content'), 100, 1);
        add_filter('dynamic_sidebar_params', array($this, 'sidebar_params'), 100, 1);
        add_filter('widget_output', array($this, 'filter_content'), 100, 1);
    }

    public function enqueue_scripts() {
        wp_enqueue_script('obfuscation', Obfuscation::get_url('assets/js/obfuscation.js'), array(), Obfuscation::get_version(), true);
    }

    public function filter_content($content) {
        if (!find_emails($content)) return $content;
        return filter($content);
    }

    public function sidebar_params($params) {
        global $wp_registered_widgets;
        $widget_id = $params[0]['widget_id'];

        $wp_registered_widgets[$widget_id]['_callback'] = $wp_registered_widgets[$widget_id]['callback'];
        $wp_registered_widgets[$widget_id]['callback'] = array($this, 'widget_callback');

        return $params;
    }

    public function widget_callback() {
        global $wp_registered_widgets;
        $params = func_get_args();
        $widget_id = $params[0]['widget_id'];

        $callback = $wp_registered_widgets[$widget_id]['_callback'];
        $wp_registered_widgets[$widget_id]['callback'] = $callback;

        $widget_id_base = $wp_registered_widgets[$widget_id]['callback'][0]->id_base;

        if (is_callable($callback)) {
            ob_start();
            call_user_func_array($callback, $params);
            $widget_output = ob_get_clean();

            echo apply_filters('widget_output', $widget_output, $widget_id_base, $widget_id);
        }
    }
}

Filter::instance();