<?php

namespace AcyMailing\WpInit;

defined('ABSPATH') || die('Restricted Access');

use AcyMailing\Classes\PluginClass;

class Router
{
    public function __construct()
    {
        // Back router
        add_action('wp_ajax_acymailing_router', [$this, 'router']);
        // Front router
        if (!acym_isAdmin()) {
            add_action('wp_loaded', [$this, 'frontRouter']);
        }

        // Make sure we can redirect / download / modify headers if needed after some checks
        $pages = [
            'automation',
            'bounces',
            'campaigns',
            'configuration',
            'dashboard',
            'dynamics',
            'fields',
            'file',
            'followups',
            'forms',
            'language',
            'lists',
            'mails',
            'override',
            'queue',
            'segments',
            'stats',
            'users',
        ];
        $headerPages = [
            'automation',
            'bounces',
            'campaigns',
            'configuration',
            'dashboard',
            'fields',
            'followups',
            'forms',
            'lists',
            'mails',
            'override',
            'queue',
            'segments',
            'stats',
            'users',
        ];
        foreach ($pages as $page) {
            if (in_array($page, $headerPages)) {
                // Ensure we can set headers in the plugin
                add_action('load-acymailing_page_acymailing_'.$page, [$this, 'waitHeaders']);
            }
            // Disable WP emojis in AcyMailing only
            add_action('admin_print_scripts-acymailing_page_acymailing_'.$page, [$this, 'disableJsBreakingPages']);
            add_action('admin_print_styles-acymailing_page_acymailing_'.$page, [$this, 'removeCssBreakingPages']);
        }
        add_action('admin_print_scripts-toplevel_page_acymailing_dashboard', [$this, 'disableJsBreakingPages']);
        add_action('admin_print_styles-toplevel_page_acymailing_dashboard', [$this, 'removeCssBreakingPages']);
        add_action('wp_enqueue_media', [$this, 'protectAcyMailingPages'], 100);
        add_action('init', [$this, 'autologin']);
    }

    public function protectAcyMailingPages()
    {
        // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Make sure we're on an AcyMailing page.
        $page = isset($_REQUEST['page']) ? sanitize_text_field(wp_unslash($_REQUEST['page'])) : '';
        if (empty($page) || strpos($page, 'acymailing_') === false) {
            return;
        }

        wp_dequeue_script('responsive-lightbox-admin-select2');
        wp_dequeue_style('responsive-lightbox-admin-select2');

        // Remove theme loading select2 from Supreme module pro for divi
        wp_dequeue_script('dsm-select-two');
        wp_dequeue_style('dsm-select-two');
    }

    public function waitHeaders()
    {
        ob_start();
    }

    public function disableJsBreakingPages()
    {
        // Show normal emojis on AcyMailing pages
        remove_action('admin_print_scripts', 'print_emoji_detection_script');

        // Slideshow ck breaks the editor
        remove_action('wp_enqueue_media', '\\Slideshowck\\Tinymce\\register_scripts_styles');

        // Skaut Google Drive gallery breaks the editor
        remove_action('wp_enqueue_media', '\\Sgdg\\Admin\\TinyMCE\\register_scripts_styles');

        // Remove theme loading select2 which breaks select2 in vueJS
        wp_dequeue_script('select2.js');

        // The "Checkout Field Manager for WooCommerce" plugin breaks the js on every pages
        wp_dequeue_script('checkout_fields_js');

        // Fixed editor incompatibility
        wp_dequeue_script('wp-optimize-minify-admin-purge');

        // Remove Happy Elementor Addons select2 which breaks our select2
        wp_dequeue_script('happy-elementor-addons-select2');
        wp_dequeue_script('select2');
    }

    public function removeCssBreakingPages()
    {
        wp_dequeue_style('saswp-main-css');
        wp_dequeue_style('WP REST API Controller');
        wp_dequeue_style('wpml-select-2');
        wp_dequeue_style('swcfpc_admin_css');

        // Remove Happy Elementor Addons select2 which breaks our select2
        wp_dequeue_style('happy-elementor-addons-select2');
        wp_dequeue_style('select2');

        // Messes with the tooltips, the schedule date in emails for example
        wp_dequeue_style('qlwapp-admin-menu');
    }

    public function frontRouter()
    {
        $page = acym_getVar('string', 'page');
        if (empty($page) || $page !== ACYM_COMPONENT.'_front') return;

        $this->router(true);
    }

    public function router(bool $front = false): void
    {
        acym_displayFreeTrialMessage();


        if (!$front) {
            auth_redirect();

            // The router only enforces auth_redirect() and the 'dashboard' controller is exempt from call()'s ACL, so mirror Menu.php's back-office access gate (wp_access groups) to keep arbitrary logged-in users out.
            if (!acym_hasBackofficeAccess()) {
                wp_die(esc_html(acym_translation('ACYM_ACCESS_DENIED')), '', ['response' => 403]);
            }
        }

        if (file_exists(ACYM_FOLDER.'update.php')) {
            $acyActivation = new Activation();
            if (is_multisite()) {
                $currentBlog = get_current_blog_id();
                $sites = get_sites();

                foreach ($sites as $site) {
                    if (is_object($site)) {
                        $site = get_object_vars($site);
                    }
                    switch_to_blog($site['blog_id']);
                    acym_config(true);
                    $acyActivation->updateAcym();
                }

                switch_to_blog($currentBlog);
            } else {
                $acyActivation->updateAcym();
            }

            acym_deleteFile(ACYM_FOLDER.'update.php');
        }

        $config = acym_config(true);

        // Get controller. If not found, take it from the page
        $ctrl = acym_getVar('cmd', 'ctrl', '');
        $task = acym_getVar('cmd', 'task', '');

        if (!$front && acym_isAdmin() && file_exists(ACYM_NEW_FEATURES_SPLASHSCREEN_JSON) && acym_isWritable(ACYM_NEW_FEATURES_SPLASHSCREEN_JSON)) {
            $ctrl = 'dashboard';
            $task = 'features';
            acym_setVar('ctrl', $ctrl);
            acym_setVar('task', $task);
        }

        $needToMigrate = $config->get('migration') == 0 && acym_existsAcyMailing59() && acym_getVar('string', 'task') !== 'migrationDone';
        $forceDashboard = !$front && ($needToMigrate || $config->get('walk_through', 0) == 1) && !(defined('DOING_AJAX') && DOING_AJAX) && 'dynamics' !== $ctrl;
        if ($forceDashboard) {
            $ctrl = 'dashboard';
            acym_setVar('ctrl', $ctrl);
        }

        if (empty($ctrl)) {
            $ctrl = str_replace(ACYM_COMPONENT.'_', '', acym_getVar('cmd', 'page', ''));

            if (empty($ctrl)) {
                echo esc_html(acym_translation('ACYM_PAGE_NOT_FOUND'));

                // For Google search console in the frontend to prevent from doing 404 errors
                $noCache = acym_getVar('int', 'nocache', 0);
                if (!empty($noCache)) {
                    acym_redirect(acym_rootURI());
                }

                return;
            }

            acym_setVar('ctrl', $ctrl);
        }

        $this->deactivateHookAdminFooter();
        $subNamespace = $front ? 'Front' : '';
        $controllerNamespace = 'AcyMailing\\'.$subNamespace.'Controllers\\'.ucfirst($ctrl).'Controller';

        if (!class_exists($controllerNamespace)) {
            echo esc_html(acym_translation('ACYM_PAGE_NOT_FOUND').': '.$ctrl);

            return;
        }

        if (!$front && acym_isAdmin() && $task != 'edit' && !(defined('DOING_AJAX') && DOING_AJAX)) {
            $pluginClass = new PluginClass();
            $installedPlugins = $pluginClass->getAll('title');
            foreach (ACYM_AVAILABLE_PLUGINS as $onePlugin) {
                if (empty($installedPlugins[$onePlugin['name']])) continue;
                if ($installedPlugins[$onePlugin['name']]->type !== 'ADDON') continue;

                acym_enqueueMessage(
                    acym_translationSprintf(
                        'ACYM_NEW_PLUGIN_FORMAT',
                        $onePlugin['name'],
                        '<a target="_blank" style="color: #00a5ff;" href="'.$onePlugin['downloadlink'].'">'.acym_translation('ACYM_CLICK_HERE').'</a>'
                    ),
                    'error'
                );
            }
        }

        $controller = new $controllerNamespace();
        if (empty($task)) {
            $task = acym_getVar('cmd', 'defaulttask', $controller->defaulttask);
        }

        if ($forceDashboard && !method_exists($controller, $task)) {
            $task = 'listing';
            acym_setVar('task', $task);
        }

        $controller->call($task, $front);
    }

    public function autologin()
    {
        $subId = acym_getVar('int', 'autoSubId');
        $subToken = acym_getVar('string', 'subKey');

        if (empty($subId) || empty($subToken)) {
            return;
        }

        $currentUrl = acym_currentURL();
        $cleanedUrl = acym_cleanUrl($currentUrl, ['autoSubId', 'subKey']);

        $config = acym_config();
        if ($config->get('autologin_urls', 0) == 0) {
            acym_redirect($cleanedUrl);
        }

        $subscriber = acym_loadObject('SELECT `cms_id`, `key` FROM #__acym_user WHERE `id` = '.intval($subId));
        if (empty($subscriber->cms_id) || $subscriber->cms_id === acym_currentUserId()) {
            acym_redirect($cleanedUrl);
        }

        if (!acym_verifyAutologinToken($subId, $subToken, $subscriber->key)) {
            acym_redirect($cleanedUrl);
        }

        $user = get_user_by('id', $subscriber->cms_id);

        if (is_wp_error($user) || !$user) {
            acym_redirect($cleanedUrl);
        }

        // Never allow autologin for administrator accounts
        if ($user->has_cap('manage_options')) {
            acym_redirect($cleanedUrl);
        }

        wp_clear_auth_cookie();
        wp_set_current_user($user->ID);
        wp_set_auth_cookie($user->ID);

        acym_redirect($cleanedUrl);
    }

    private function deactivateHookAdminFooter()
    {
        //Remove hook function which break AcyMailing pages
        remove_action('admin_footer', 'Freemius::_enrich_ajax_url');
        remove_action('admin_footer', 'Freemius::_open_support_forum_in_new_page');
    }
}