<?php

class Brizy_Admin_Popups_Main
{

    const CP_POPUP = 'brizy-popup';

    /**
     * @return Brizy_Admin_Popups_Main
     */
    public static function _init()
    {
        static $instance;

        if ( ! $instance) {
            $instance = new self();
            $instance->initialize();
        }

        return $instance;
    }

    public function initialize()
    {
        add_action('brizy_after_enabled_for_post', [$this, 'afterBrizyEnabledForPopup']);

        if (Brizy_Editor::is_user_allowed()) {
            add_action('admin_menu', [$this, 'removePageAttributes']);
        }

        if ( ! isset($_GET[Brizy_Editor::prefix('-edit')]) && ! isset($_GET[Brizy_Editor::prefix('-edit-iframe')])) {
            add_action('wp_enqueue_scripts', [$this, 'enqueuePopupScripts']);
            add_action('wp_head', [$this, 'wpHeadAppentPopupHtml']);
            add_action('wp_footer', [$this, 'wpFooterAppendPopupHtml']);
            add_filter('body_class', [$this, 'bodyClassFrontend'], 11);
        }
    }

    public function enqueuePopupScripts()
    {
        foreach ($this->getMatchingBrizyPopups() as $popup) {
            $needs_compile = ! $popup->isCompiledWithCurrentVersion() || $popup->get_needs_compile();
            if ($needs_compile) {
                $popup->compile_page();
                $popup->saveStorage();
                $popup->savePost();
            }

            Brizy_Public_AssetEnqueueManager::_init()->enqueuePost($popup);
        }
    }

    public function wpHeadAppentPopupHtml()
    {
        $headHtml = $this->getPopupsHtml(null, null, 'head');

        if (empty($headHtml)) {
            return;
        }

        $content = apply_filters(
            'brizy_content',
            $headHtml,
            Brizy_Editor_Project::get(),
            null,
            'head'
        );

        echo do_shortcode($content);
    }

    public function wpFooterAppendPopupHtml()
    {
        $bodyHtml = $this->getPopupsHtml(null, null, 'body');

        if (empty($bodyHtml)) {
            return;
        }

        $content = apply_filters(
            'brizy_content',
            $bodyHtml,
            Brizy_Editor_Project::get(),
            null,
            'footer'
        );

        echo do_shortcode($content);
    }

    public function bodyClassFrontend($classes)
    {
        if ( ! $this->getMatchingBrizyPopups() || false !== array_search('brz', $classes)) {
            return $classes;
        }

        $classes[] = 'brz';

        return $classes;
    }

    public function removePageAttributes()
    {
        remove_meta_box('pageparentdiv', self::CP_POPUP, 'side');
    }

    static public function registerCustomPosts()
    {

        $labels = array(
            'name'               => _x('Popups', 'post type general name', 'brizy'),
            'singular_name'      => _x('Popup', 'post type singular name', 'brizy'),
            'menu_name'          => _x('Popups', 'admin menu', 'brizy'),
            'name_admin_bar'     => _x('Popup', 'add new on admin bar', 'brizy'),
            'add_new'            => __('Add New', 'brizy'),
            'add_new_item'       => __('Add New Popup', 'brizy'),
            'new_item'           => __('New Popup', 'brizy'),
            'edit_item'          => __('Edit Popup', 'brizy'),
            'view_item'          => __('View Popup', 'brizy'),
            'all_items'          => __('Popups', 'brizy'),
            'search_items'       => __('Search Popups', 'brizy'),
            'parent_item_colon'  => __('Parent Popups:', 'brizy'),
            'not_found'          => __('No Popups found.', 'brizy'),
            'not_found_in_trash' => __('No Popups found in Trash.', 'brizy'),
            'attributes'         => __('Popup attributes:', 'brizy'),
        );

        register_post_type(
            self::CP_POPUP,
            array(
                'labels'              => $labels,
                'public'              => false,
                'has_archive'         => false,
                'description'         => __('Popups', 'brizy'),
                'publicly_queryable'  => Brizy_Editor_User::is_user_allowed(),
                'show_ui'             => defined('BRIZY_PRO_VERSION'),
                'show_in_menu'        => Brizy_Admin_Settings::menu_slug(),
                'query_var'           => false,
                'rewrite'             => array('slug' => 'brizy-popup'),
                'capability_type'     => 'page',
                'hierarchical'        => false,
                'show_in_rest'        => false,
                'exclude_from_search' => true,
                'can_export'          => true,
                'supports'            => array('title', 'post_content', 'revisions'),
            )
        );

        remove_post_type_support(self::CP_POPUP, 'page-attributes');


        add_filter(
            'brizy_supported_post_types',
            function ($posts) {
                $posts[] = self::CP_POPUP;

                return $posts;
            }
        );
    }

    /**
     * @param $post
     *
     * @throws Exception
     */
    public function afterBrizyEnabledForPopup($post)
    {
        if ($post->post_type === Brizy_Admin_Popups_Main::CP_POPUP) {
            $manager = new Brizy_Admin_Rules_Manager();
            if (count($manager->getRules($post->ID)) == 0) {
                $manager->saveRules(
                    $post->ID,
                    array(
                        new Brizy_Admin_Rule(null, Brizy_Admin_Rule::TYPE_INCLUDE, '', '', array()),
                    )
                );
            }
        }
    }

    /**
     * @param $content
     * @param $project
     * @param $wpPost
     * @param string $context
     *
     * @return string|string[]|null
     * @throws Brizy_Editor_Exceptions_NotFound
     * @throws Brizy_Editor_Exceptions_ServiceUnavailable
     */
    public function getPopupsHtml($project, $wpPost, $context)
    {
        $content = "";
        $popups  = $this->getMatchingBrizyPopups($wpPost);

        foreach ($popups as $brizyPopup) {
            /**
             * @var Brizy_Editor_Post $brizyPopup ;
             */

            if ($brizyPopup->get_needs_compile()) {
                $brizyPopup->compile_page();
                $brizyPopup->saveStorage();
                $brizyPopup->savePost();
            }

            $compiledPage = $brizyPopup->get_compiled_page();

            if ($context == 'head') {
                $content = $this->insertHead($content, $compiledPage->get_head());
            }

            if ($context == 'body') {
                $content = $this->insertBody($content, $compiledPage->get_body());
            }
        }

        return $content;
    }

    private function insertHead($target, $headContent)
    {

        if (empty($headContent)) {
            return $target;
        }

        return $target."\n\n<!-- POPUP HEAD -->\n{$headContent}\n<!-- POPUP HEAD END-->\n\n";
    }

    private function insertBody($target, $bodyContent)
    {

        if (empty($bodyContent)) {
            return $target;
        }

        return $target."\n\n<!-- POPUP BODY -->\n{$bodyContent}\n<!-- POPUP BODY END-->\n\n";
    }

    /**
     * @param null $wpPost
     *
     * @return array
     */
    public function getMatchingBrizyPopups($wpPost = null)
    {
        if ($wpPost) {
            $applyFor       = Brizy_Admin_Rule::POSTS;
            $entityType     = $wpPost->post_type;
            $entityValues[] = $wpPost->ID;
        } else {
            list($applyFor, $entityType, $entityValues) = Brizy_Admin_Rules_Manager::getCurrentPageGroupAndTypeForPopoup(
            );
        }

        return $this->findMatchingPopups($applyFor, $entityType, $entityValues);
    }

    /**
     * @param $applyFor
     * @param $entityType
     * @param $entityValues
     *
     * @return array
     */
    private function findMatchingPopups($applyFor, $entityType, $entityValues)
    {

        $resultPopups = array();
        $allPopups    = get_posts(
            array(
                'post_type'   => self::CP_POPUP,
                'numberposts' => -1,
                'post_status' => 'publish',
            )
        );

        $allPopups = Brizy_Admin_Rules_Manager::sortEntitiesByRuleWeight(
            $allPopups,
            [
                'type'         => $applyFor,
                'entityType'   => $entityType,
                'entityValues' => $entityValues,
            ]
        );

        $ruleManager = new Brizy_Admin_Rules_Manager();
        foreach ($allPopups as $aPopup) {
            $ruleSet = $ruleManager->getRuleSet($aPopup->ID);
            try {
                if ($ruleSet->isMatching($applyFor, $entityType, $entityValues)) {
                    $resultPopups[] = Brizy_Editor_Post::get($aPopup);
                }
            } catch (\Exception $e) {
                continue; // we catch here  the  exclusions
            }
        }

        return $resultPopups;
    }
}