<?php

if (!defined('WEBTOTEM_INIT') || WEBTOTEM_INIT !== true) {
    if (!headers_sent()) {
        header('HTTP/1.1 403 Forbidden');
    }
    die("Protected By WebTotem!");
}

use Twig\Error\LoaderError;
use Twig\Error\RuntimeError;
use Twig\Error\SyntaxError;
use \Twig\Loader\FilesystemLoader;
use \Twig\Environment;

/**
 * Read, parse and handle everything related with the templates.
 */
class WebTotemTemplate
{

    protected $loader;
    protected $page_nonce;
    protected $images_path;
    protected $menu_url;
    protected $domain;

    function __construct()
    {
        if (class_exists('\Twig\Loader\FilesystemLoader')) {
            $this->loader = new FilesystemLoader(WEBTOTEM_PLUGIN_PATH . '/includes/templates/');
        }
        $this->page_nonce = wp_create_nonce('wtotem_page_nonce');
        $this->images_path = WebTotem::getImagePath('');
        $this->menu_url = WebTotem::adminURL('admin.php?page=wtotem');
        $this->domain = WEBTOTEM_SITE_DOMAIN;
    }

    /**
     * Rendering a template using twig and filling in data.
     *
     * @param string $template
     * @param array $variables
     *
     * @return bool|string
     * @throws LoaderError
     * @throws RuntimeError
     * @throws SyntaxError
     */
    public function twigRender($template, $variables = [])
    {

        $twig = new Environment($this->loader);

        if (!file_exists(WEBTOTEM_PLUGIN_PATH . '/includes/templates/' . $template)) {
            WebTotemOption::setNotification('error', __('There is no template: ', 'wtotem') . $template);
            return FALSE;
        }

        // Default values of some variables
        $variables['images_path'] = $this->images_path;
        $variables['days'] = (isset($variables['days'])) ? $variables['days'] : 7;
        $variables['page_nonce'] = $this->page_nonce;
        $variables['menu_url'] = $this->menu_url;
        $variables['domain'] = $this->domain;
        $variables['user_email'] = WebTotem::getUserEmail();

        if (WebTotem::isMultiSite()) {
//            $variables['is_multisite'] = WebTotem::isMultiSite();
//            $variables['is_super_admin'] = is_super_admin();
//            $variables['hid'] = (WebTotemRequest::get('hid')) ? '&hid=' . WebTotemRequest::get('hid') : '';
            $variables['is_multisite'] = false;
            $variables['is_super_admin'] = is_super_admin();
        }

        $twig->addFilter(new \Twig\TwigFilter('trans', array($this, 'translate')));
        $twig->addFunction(new \Twig\TwigFunction('plural', array($this, 'plural')));
        $twig->addFilter(new \Twig\TwigFilter('t', array($this, 'translate')));

        return $twig->render($template, $variables);
    }

    /**
     * Page rendering based on array data.
     *
     * @param $params
     *
     * @return bool|string
     * @throws LoaderError
     * @throws RuntimeError
     * @throws SyntaxError
     */
    public function arrayRender($params)
    {

        $render = '';
        if (is_array($params)) {

            if (array_key_exists('template', $params)) {
                $template = $params['template'] . '.html.twig';
                $variables = (isset($params['variables'])) ? $params['variables'] : [];

                $render = $this->twigRender($template, $variables) ?: '';
            } else {
                foreach ($params as $param) {
                    $template = $param['template'] . '.html.twig';
                    $variables = (isset($param['variables'])) ? $param['variables'] : [];

                    $render .= $this->twigRender($template, $variables) ?: '';
                }
            }

        }

        return $render;
    }

    /**
     * Generate a page based on a basic template and content.
     *
     * @param $page_content
     *
     * @return bool|string
     * @throws LoaderError
     * @throws RuntimeError
     * @throws SyntaxError
     */
    public function baseTemplate($page_content)
    {

        if (WebTotemRequest::get('hid')) {
            WebTotemOption::setSessionOptions(['host_id' => WebTotemRequest::get('hid')]);
            $host = WebTotemOption::getHost(WebTotemRequest::get('hid'));
        } else {
            $host = WebTotemAPI::siteInfo();
        }

        $variables['menu_url'] = WebTotem::adminURL('admin.php?page=wtotem');

        $page = str_replace(['wtotem', '_'], '', WebTotemRequest::get('page'));
        $page = $page ?: 'dashboard';
        $variables['is_active'][$page] = 'wtotem_nav__link_active';
        $variables['page'] = $page;

        if ($page != 'activation') {
            $user_feedback = WebTotemAPI::getFeedback();
            if(is_array($user_feedback) and array_key_exists('score', $user_feedback)){
                $variables['user_feedback'] = (bool)$user_feedback['score'];
            } else {
                $variables['user_feedback'] = true;
            }
        } else {
            $variables['user_feedback'] = true;
        }

        $site_created_at = WebTotemOption::getOption('site_created_at');
        $site_created_at = $site_created_at ? json_decode($site_created_at, true) : [];
        $site_created_at = (array_key_exists($host['name'], $site_created_at)) ? $site_created_at[$host['name']] : null;
        $variables['site_created_at'] = $site_created_at ? date('Y-m-d', strtotime($site_created_at)) : null;

        $variables['theme_mode'] = WebTotem::getThemeMode();
        $variables['notifications'] = WebTotem::getNotifications();
        $variables['current_year'] = date('Y');
        $variables['content'] = $page_content;

        return $this->twigRender('layout.html.twig', $variables);
    }

    /**
     * String translation.
     *
     * @param $string
     * @param array $params
     *
     * @return string
     */
    public static function translate($string, array $params = [])
    {

        global $locale;

        $string = ('en_US' !== $locale) ? translate($string, 'wtotem') : $string;

        if ($params) {
            foreach ($params as $key => $value) {
                $string = str_replace($key, $value, $string);
            }
        }

        return (string)$string;
    }

    /**
     * @param array $params [single, plural, number]
     *
     * usage example
     * {{ plural({'single' : '%s month', 'plural' : '%s months', 'number' : 1}) }}
     *
     * @return string
     */
    public static function plural(array $params): string
    {

        $string = _n($params['single'], $params['plural'], $params['number'], 'wtotem');
        $string = str_replace('%s', $params['number'], $string);

        return (string)$string;
    }

    /**
     * Get HTML without Twig
     *
     * @return string|bool
     */
    public function getHtml($template)
    {
        $templatePath = WEBTOTEM_PLUGIN_PATH . '/includes/templates/' . $template . '.html.twig';
        if (!file_exists($templatePath)) {
            return FALSE;
        }

        ob_start();
        include $templatePath;
        return ob_get_clean();
    }

}