<?php

namespace ctiso\Controller;

use ctiso\HttpRequest;
use ctiso\ComponentRequest;
use ctiso\Arr;
use ctiso\Path;
use ctiso\File;
use ctiso\Form\Form;
use ctiso\View\Composite;
use ctiso\Database;
use ctiso\Collection;
use ctiso\Registry;
use ctiso\Controller\SiteInterface;
use PHPTAL;
use 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 = [];
    public $webPath = [];

    public $template = null;
    public string $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;

    /**
     * @var SiteInterface $site
     */
    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, $action)) {
            return call_user_func([$this, $action], $crequest);
        } else {
            return $this->actionIndex($crequest);
        }
    }

    /**
     * Получить имя шаблона
     * @param Registry $_registry
     */
    public function getTemplateName($_registry) {
        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);
        }

        /* @var Registry $config */
        $config = $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 => $_) {
            if(is_dir(Path::join($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;
    }

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

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

    /**
     * Найти файл по пути
     * @param string[] $pathList
     * @param string $name
     * @return string|null
     */
    function findFile(array $pathList, string $name) {
        foreach($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 ['parameter' => []];
    }

    /**
     * Генерация интерфейса для выбора галлереи фотографии
     * @param Composite $view
     * @param \ctiso\Form\OptionsFactory $options
     */
    public function setParameters(Composite $view, $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'];
    }

    public function getFields($options = null) {
        $form = new Form();
        $form->addFieldList($this->getInfo()['parameter'], $options);

        return $form->field;
    }

    /**
     * Обьеденить с ComponentFactory
     * @param string $expression
     * @param SiteInterface $site
     * @return Component
     */
    static function loadComponent(string $expression, $site)
    {
        $expression = htmlspecialchars_decode($expression);
        $offset = strpos($expression, '?');
        $url = parse_url($expression);

        $arguments = [];
        $path = $expression;
        if (is_int($offset)) {
            $path = substr($expression, 0, $offset);
            $query = substr($expression, $offset + 1);
            parse_str($query, $arguments);
        }
        $name = $path;
        $config = $site->getConfig();

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

        /**
         * @var ?Component $component
         */
        $component = null;

        if (file_exists($path)) {
            $component = new $className();

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

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

            $component->viewPath = [
                // 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 = [
                    // 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 = ['', $config->get('site', 'components.web') . '/' . $name, '', ''];
            }
        }

        // Вынести в отдельную функцию
        $db = $site->getDatabase();

        $component->db = $db;
        $component->config = $site->getConfig();
        $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) {
            $site->addComponentConfig($editor);
        }

        return $component;
    }

    function getEditUrl() {
        return null;
    }

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

        $param = [];
        $parameter = $this->parameter;
        foreach($parameter->export() as $key => $value) {
            $param[$key] = $value;
        }

        $data = [];
        foreach($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;
    }


    /**
     * @param ComponentRequest $request
     */
    function query($request, $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);
    }

    /**
     * @param ComponentRequest $request
     */
    function actionIndex($request) {
    }
}