<?php

namespace ctiso\Controller;
use ctiso\HttpRequest,
    ctiso\ComponentRequest,
    ctiso\Arr,
    ctiso\Path,
    ctiso\File,
    ctiso\Form\Form,
    ctiso\View\Composite,
    ctiso\Database,
    ctiso\Database\PDOStatement,
    ctiso\Collection,
    ctiso\Registry,
    ctiso\Controller\SiteInterface,
    PHPTAL,
    PHPTAL_PreFilter_Normalize;

class FakeTemplate {
    public $_data = [];
    public $_name = '';
    
    function __construct($name) {
        $this->_name = $name;
    }

    function __set($key, $value) {
        $this->_data[$key] = $value;
    }        

    function execute() {
        return json_encode($this->_data);
    }
}

/**
 * Класс компонента
 */
class Component
{
    public $viewPath = array();
    public $webPath = array();

    public $template = null;
    public $templatePath;

    public $component_id;
    public $component_title;

    public $COMPONENTS_WEB;

    public Registry $config; 
    public Database $db;
    public Collection $parameter;

    public $output = 'html';

    public $module;
    public $item_module;
    public $site;

    function before() {
    }

    static function replaceContent($match) {
        return \ctiso\Tales::phptal_component(htmlspecialchars_decode($match[3]));
    }

    static function applyComponents($text) {
        return preg_replace_callback('/<(\w+)(\s+[a-zA-Z\-]+=\"[^\"]*\")*\s+tal:replace="structure\s+component:([^\"]*)"[^>]*>/u', 'ctiso\\Controller\\Component::replaceContent', $text);
    }

    function execute(HttpRequest $request, $has_id = true) {
        $crequest = new ComponentRequest($this->component_id, $request);

        $_action = $request->get('action', 'index');
        if (is_array($_action)) {
            $action = 'action' . ucfirst(Arr::get($_action, $this->component_id, 'index'));
        } else {
            $action = 'action' . ucfirst($_action);
        }
       
        $this->before();
        if (method_exists($this, $action)) {
            return call_user_func(array($this, $action), $crequest);
        } else {
            return $this->actionIndex($crequest);
        }
    }

    public function getTemplateName($_registry/*: \ctiso\Settings*/) {
        return (isset($_COOKIE['with_template']) && preg_match('/^[\w\d-]{3,20}$/', $_COOKIE['with_template'])) 
                ? $_COOKIE['with_template'] : ($_registry ? $_registry->get('site', 'template') : 'modern');
    }    

    public function getView($name)
    {
        if ($this->output == 'json') {
            return new FakeTemplate($name);
        }
    
        $config/*: Registry*/ = $this->config;
        $default = $config->get('site', 'template');
        $template = ($this->template) ? $this->template : $this->getTemplateName($config);

        $selected = null;
        $tpl = null;
        foreach ($this->viewPath as $index => $viewPath) {
            // Загружать шаблон по умолчанию если не найден текущий
            $dir = Path::join($this->viewPath[$index], 'templates', $template);
            if(is_dir($dir)) {
                $tpl = new PHPTAL(Path::join($this->viewPath[$index], 'templates', $template, $name));
                $tpl->setPhpCodeDestination(PHPTAL_PHP_CODE_DESTINATION);
                $selected = $index;
                break;
            } 
        }

        if ($selected === null) {
            // Последний вариант viewPath, путь к папке компонента
            $selected = count($this->viewPath) - 1;                
            $tpl = new PHPTAL(Path::join($this->viewPath[$selected], 'templates', 'modern', $name));
            $tpl->setPhpCodeDestination(PHPTAL_PHP_CODE_DESTINATION);
            $template = 'modern';
        }

        $tpl->stripComments(true);
        $tpl->addPreFilter(new PHPTAL_PreFilter_Normalize());

        $tpl->set('common', Path::join($this->config->get('system', 'web'), '../', 'common'));
        $tpl->set('script', Path::join($this->config->get('system', 'web'), 'js'));
        $tpl->set('media', Path::join($this->config->get('system', 'templates.web'), $template));

        if ($default) {
            $tpl->set('site_template', Path::join($this->config->get('site', 'templates.web'), $default));
        }
        $tpl->set('base', $this->config->get('site', 'web'));

        $tpl->set('component_base', $this->webPath[$selected]);
        $tpl->set('component', Path::join($this->webPath[$selected], 'templates', $template));
        $tpl->set('component_id', $this->component_id);

        return $tpl;
    }

    function _getDefaultPath() {
        return $this->viewPath[count($this->viewPath) - 1];
    }

    public function getTemplatePath($name) {
        $registry = $this->config;
        // Брать настройки из куков если есть
        $template = ($this->template) ? $this->template : $this->getTemplateName($registry);
        foreach ($this->viewPath as $index => $viewPath) {
            if(is_dir(Path::join($this->viewPath[$index], 'templates', $template))) {
                return Path::join($this->viewPath[$index], 'templates', $template, $name);
            }
        }
        
        return Path::join($this->viewPath[count($this->viewPath) - 1], 'templates', 'modern', $name);
    }

    public function getTemplateWebPath()
    {
        return Path::join($this->webPath[count($this->webPath) - 1], 'templates', 'modern');
    }

    /**
     * Создает модель
     * @param string $name    
     * @return mixed
     */
    public function getModel($name)
    {
        $modelName = "App\\Mapper\\" . $name;
        $model = new $modelName();
        $model->config = $this->config;
        $model->db = $this->db;
        return $model;
    }

    public function options($key, $val, $res/*: PDOStatement*/) {
        $result = array();
        while($res->next()) {
            $result[] = array('value' => $res->getString($key), 'name' => $res->getString($val));
        }
        return $result;
    }

    public function optionsPair($list, $selected = false) {
        $result = array();
        foreach ($list as $key => $value) {
            $result [] = array('value' => $key, 'name' => $value, 'selected' => $key == $selected);
        }
        return $result;
    }

    function findFile($pathList, $name) {
        foreach($pathList as $item) {
            $filename = Path::join($item, $name);
            if (file_exists($filename)) {        
                return $filename;
            }
        }
        return null;
    }

    function getInfo() {
        $filename = Path::join($this->viewPath[count($this->viewPath) - 1], 'install.json');
        if (file_exists($filename)) {
            $settings = json_decode(File::getContents($filename), true);
            if ($settings) {
                return $settings;
            }
        }
        return array('parameter' => []);
    }

    /**
     * Генерация интерфейса для выбора галлереи фотографии
     */
    public function setParameters($view/*: Composite*/, $options = null)
    {
        $form = new Form();

        $settings = $this->getInfo();
        $form->addFieldList($settings['parameter'], $options);

        $view->form = $form;
        $view->component = $settings['component'];
        $view->component_title = $settings['title'];
    }

    static function loadComponent($expression, $site/*: SiteInterface*/)
    {
    
        $expression = htmlspecialchars_decode($expression);
        $offset = strpos($expression, '?');
        $url = parse_url($expression);
    
        $arguments = array();
        if ($offset === false) {
            $path = $expression;
        } else if (is_int($offset)) {        
            $path = substr($expression, 0, $offset);
            $query = substr($expression, $offset + 1);
            parse_str($query, $arguments);
        }
        $name = $path;
        $config = $site->config;

        $filename = ucfirst($name);
        $path = Path::join ($config->get('site', 'components'), $name, $filename . '.php');
        $className = implode("\\", ['Components', ucfirst($name), $filename]);

        $component/*: Component*/ = null;
        
        if (file_exists($path)) {
            // require_once ($path);
            $component = new $className();            

            $component->viewPath = array($config->get('site', 'components') . '/' . $name . '/');
            $component->webPath = array($config->get('site', 'components.web') . '/' . $name);
            $component->COMPONENTS_WEB = $config->get('site', 'web') . '/components/';

        } else {
            $component = new $className();
            $template = $component->getTemplateName($site->config);

            $component->viewPath = array(
                // Сначало ищем локально
                $config->get('site', 'templates') . '/'. $template . '/_components/' . $name . '/',
                $config->get('site', 'components') . '/' . $name . '/',
                // Потом в общем хранилище
                $config->get('system', 'templates'). '/' . $template . '/_components/' . $name . '/',                                
                $config->get('system', 'components') . '/' . $name . '/', 
            );
            if (defined('COMPONENTS_WEB')) {
                $component->webPath = array(
                    // Сначало локально
                    $config->get('site', 'templates.web') . '/' . $template . '/_components/' . $name,
                    $config->get('site', 'components.web') . '/' . $name,
                    // Потом в общем хранилище    
                    $config->get('system', 'templates.web') . '/' . $template . '/_components/' . $name,
                    $config->get('system', 'components.web') . '/' . $name,                     
                );
                $component->COMPONENTS_WEB = $config->get('system', 'components.web');
            } else {
                $component->webPath = array('', $config->get('site', 'components.web') . '/' . $name, '');
            }
        }        

        $db = $site->getDatabase();

        $component->db = $db;
        $component->config = $site->config;
        $component->site = $site;
        
        $stmt = $db->prepareStatement("SELECT * FROM component WHERE code = ?");
        $stmt->setString(1, $expression);
        $cid = $stmt->executeQuery();
        if ($cid->next()) {
            $component->component_id = $cid->getInt('id_component');
        } else {
            $last = $db->getIdGenerator();
            $result = null;
            if ($last->isBeforeInsert()) {
                $result = $last->getId('component_id_component_seq');

                $stmt = $db->prepareStatement("INSERT INTO component (id_component, code) VALUES ($result, ?)");
                $stmt->setString(1, $expression);
                $stmt->executeQuery();
            }
            if ($last->isAfterInsert()) {
                $stmt = $db->prepareStatement("INSERT INTO component (code) VALUES (?)");
                $stmt->setString(1, $expression);
                $stmt->executeQuery();

                $result = $last->getId('component_id_component_seq');
            }
            $component->component_id = $result;
        }

        $params = new Collection();
        $params->import(array_merge($_GET, $arguments));

        $component->parameter = $params;
        $component->template = $params->get('template', false);

        $editor = $component->getEditUrl();
        if ($editor) {
            $site->componentsConfig[] = $editor;
        }

        return $component;
    }

    function getEditUrl() {
        return null;
    }

    function raw_query($request/*: ComponentRequest*/) 
    {
        $arr = $request->r->export('get');

        $param = array();
        $parameter/*: Collection*/ = $this->parameter;
        foreach($parameter->export() as $key => $value) {
            $param[$key] = $value;
        }

        $data = array();
        foreach($arr as $key => $value) {
            if (is_array($value)) {
                $data[$key] = Arr::get($value, $this->component_id);
            } else {
                $data[$key] = $value;
            }
        }
        $data['param'] = $param;
        return $data;
    }


    function query($request/*: ComponentRequest*/, $list) 
    {
        $arr = $request->r->export('get');

        foreach($list as $key => $val) {
            $arr[$key] [$this->component_id] = $val;
        }

        unset($arr['active_page']);
        return '?' . http_build_query($arr);
    }

    function addRequireJsPath($name, $path, $shim = null) {
        $this->site->addRequireJsPath($name, $path, $shim);
    }

    function actionIndex($request/*: ComponentRequest*/) {
    }
}