<?php
/*
 * Copyright © 2021 ExacTI Technology Solutions. All rights reserved.
 * GPLv3 General License.
 * https://exacti.com.br
 * Phacil PHP Framework - https://github.com/exacti/phacil-framework
 */

namespace Phacil\Framework;

use TypeError;
use Mustache_Exception_UnknownTemplateException;
use RuntimeException;
use SmartyException;
use Exception;

/** @package Phacil\Framework */
abstract class Controller {
    /**
     * 
     * @var Registry
     */
    protected $registry;
    protected $id;
    protected $layout;
    protected $template;

    /**
     * 
     * @var array
     */
    protected $children = array();

    /**
     * 
     * @var array
     */
    protected $data = array();

    /**
     * 
     * @var array
     */
    protected $twig = array();

    /**
     * 
     * @var array
     */
    protected $error = array();
    
    protected $output;

    /**
     * 
     * @var string[]
     */
    public $templateTypes = ["tpl", "twig", "mustache", "smarty", "dwoo"];

    /**
     * @param \Phacil\Framework\Registry $registry 
     * @return void 
     */
    public function __construct($registry) {
        $this->registry = $registry;
    }

    public function __get($key) {
        return $this->registry->get($key);
    }

    public function __set($key, $value) {
        $this->registry->set($key, $value);
    }

    /**
     * @param string $route 
     * @param array $args 
     * @return Action 
     */
    protected function forward($route, array $args = array()) {
        return new Action($route, $args);
    }

    /**
     * @param string $url 
     * @param int $status 
     * @return never 
     */
    protected function redirect($url, $status = 302) {
        header('Status: ' . $status);
        header('Location: ' . str_replace('&amp;', '&', $url));
        exit();
    }

    /**
     * @param string $child 
     * @param array $args 
     * @return mixed 
     */
    protected function getChild($child, array $args = array()) {
        $action = new Action($child, $args);
        $file = $action->getFile();
        $class = $action->getClass();
		$classAlt = $action->getClassAlt();
        $method = $action->getMethod();

        if (file_exists($file)) {
            require_once($file);

            foreach($classAlt as $classController){
				try {
                    if(class_exists($classController)){
					    $controller = new $classController($this->registry);
					
					    break;
                    }
				} catch (\Throwable $th) {
					//throw $th;
				}
			}

            $controller->$method($args);

            return $controller->output;
        } else {
            trigger_error('Error: Could not load controller ' . $child . '!');
            exit();
        }
    }

    /**
     * @return mixed 
     * @throws TypeError 
     * @throws Mustache_Exception_UnknownTemplateException 
     * @throws RuntimeException 
     * @throws SmartyException 
     * @throws Exception 
     */
    protected function render() {

        foreach ($this->children as $child) {
            $this->data[basename($child)] = $this->getChild($child);
        }

        if($this->template === NULL) {
            $pegRout = explode("/", $this->request->get['route']);

            $thema = ($this->config->get("config_template") != NULL) ? $this->config->get("config_template") : "default";

            foreach($this->templateTypes as $extensionTemplate) {

                $structure =  $thema.'/'.$pegRout[0].'/'.$pegRout[1].((isset($pegRout[2])) ? '_'.$pegRout[2] : '').'.'.$extensionTemplate;
                $structure_D = 'default/'.$pegRout[0].'/'.$pegRout[1].((isset($pegRout[2])) ? '_'.$pegRout[2] : '').'.'.$extensionTemplate;
                $structure_W = $pegRout[0].'/'.$pegRout[1].((isset($pegRout[2])) ? '_'.$pegRout[2] : '').'.'.$extensionTemplate;

                if (file_exists(DIR_TEMPLATE .$structure) != false) {
                    $this->template = $structure;
                    break;
                } elseif (file_exists(DIR_TEMPLATE .$structure_D)){
                    $this->template = $structure_D;
                    break;
                } elseif(file_exists(DIR_TEMPLATE .$structure_W)) {
                    $this->template = $structure_W;
                    break;
                }

            }
        }

        if (file_exists(DIR_TEMPLATE . $this->template)) {

            $templateType = substr(strrchr($this->template, '.'), 1);

            switch($templateType) {
                case 'tpl':
                    extract($this->data);

                    ob_start();
                    require(DIR_TEMPLATE . $this->template);

                    $this->output = ob_get_contents();

                    ob_end_clean();
                    break;

                case 'twig':
                    require_once(DIR_SYSTEM."templateEngines/Twig/autoload.php");

                    $config = array(
                        'autoescape' => false,
                        'cache'		 => DIR_CACHE."twig/",
                        'debug'      => (defined('DEBUG')) ? DEBUG : false
                    );
                    $TwigLoaderFilesystem = constant('\TwigLoaderFilesystem');
                    $Twig_Environment = constant('\TwigEnvironment');
                    $Twig_SimpleFilter = constant('TwigSimpleFilter');
                    $Twig_Extension_Debug = constant('TwigExtensionDebug');

                    $loader = new $TwigLoaderFilesystem (DIR_TEMPLATE);
                    $twig = new $Twig_Environment($loader, $config);

                    if($config['debug']) {
                        $twig->addExtension(new $Twig_Extension_Debug());
                    }

                    $twig->addExtension(new \transExtension());

                    $twig->addFilter(new $Twig_SimpleFilter('translate', function ($str) {
                        // do something different from the built-in date filter
                        return traduzir($str);
                    }));

                    $twig->addFilter(new $Twig_SimpleFilter('config', function ($str) {
                        // do something different from the built-in date filter
                        return $this->config->get($str);
                    }));

                    foreach ($this->twig as $key => $item) {
                        $twig->addFilter(new $Twig_SimpleFilter($key, $item));
                    }

                    $template = $twig->load($this->template);

                    $this->output = $template->render($this->data);
                    break;


                case 'mustache':
                    require_once(DIR_SYSTEM."templateEngines/Mustache/autoload.php");

                    \Mustache_Autoloader::register();

                    $mustache = new \Mustache_Engine(array(
                        //'template_class_prefix' => '__MyTemplates_',
                        'cache' => DIR_CACHE.'mustache',
                        'cache_file_mode' => 0666, // Please, configure your umask instead of doing this :)
                        //'cache_lambda_templates' => true,
                        'loader' => new \Mustache_Loader_FilesystemLoader(DIR_TEMPLATE),
                        //'partials_loader' => new Mustache_Loader_FilesystemLoader(dirname(__FILE__).'/views/partials'),
                        'helpers' => array('translate' => function($text) {
                            if (class_exists('Translate')) {
                                $trans = new Translate();
                                return ($trans->translation($text));
                            } else {
                                return $text;
                            }// do something translatey here...
                        }),
                        /*'escape' => function($value) {
                            return $value;
                        },*/
                        //'charset' => 'ISO-8859-1',
                        //'logger' => new Mustache_Logger_StreamLogger('php://stderr'),
                        //'strict_callables' => true,
                        //'pragmas' => [Mustache_Engine::PRAGMA_FILTERS],
                    ));

                    $tpl = $mustache->loadTemplate($this->template);
                    $this->output = $tpl->render($this->data);
                    break;

                case 'smarty':
                    require_once(DIR_SYSTEM."templateEngines/smarty/autoload.php");

                    $smarty = new \Smarty();

                    $smarty->setTemplateDir(DIR_TEMPLATE);
                    $smarty->setCompileDir(DIR_CACHE."Smarty/compile/");
                    //$smarty->setConfigDir('/web/www.example.com/guestbook/configs/');
                    $smarty->setCacheDir(DIR_CACHE."Smarty/cache/");

                    $smarty->registerPlugin("block","translate", "translate");

                    $smarty->assign($this->data);

                    $smarty->caching = \Smarty::CACHING_LIFETIME_CURRENT;

                    //** un-comment the following line to show the debug console
                    $smarty->debugging = (defined('DEBUG')) ? DEBUG : false;

                    $this->output = $smarty->display($this->template);
                    break;

                default:
                    extract($this->data);

                    ob_start();
                    require(DIR_TEMPLATE . $this->template);

                    $this->output = ob_get_contents();

                    ob_end_clean();
                    break;

            }

            return $this->output;

        } else {
            trigger_error('Error: Could not load template ' . DIR_TEMPLATE . $this->template . '!');
            exit();
        }
    }

    /**
     * @param bool $commonChildren 
     * @return mixed 
     * @throws TypeError 
     * @throws Mustache_Exception_UnknownTemplateException 
     * @throws RuntimeException 
     * @throws SmartyException 
     * @throws Exception 
     */
    protected function out ($commonChildren = true) {
        if($commonChildren === true){
            $this->children = array_merge(array(
                'common/footer',
                'common/header'), $this->children
            );
        }

        return $this->response->setOutput($this->render());
    }
}