<?php

require_once('api/Mgc.php');

class LinksAdmin extends Mgc {

    public function fetch() {
        $links = array();
        /*Принимаем данные о меню*/

        if($this->request->method('POST')) {
            if ($this->request->post('menu_items')) {
                foreach ($this->request->post('menu_items') as $field => $values) {
                    foreach ($values as $i => $v) {
                        if (empty($menu_items[$i])) {
                            $menu_items[$i] = new stdClass();
                            $menu_items[$i]->i_tm = $i;
                        }
                        $menu_items[$i]->$field = $v;
                    }
                }
                // сортируем по родителю
                usort($menu_items, function ($item1, $item2) {
                    if ($item1->parent_index == $item2->parent_index) {
                        return $item1->i_tm - $item2->i_tm;
                    }
                    return strcmp($item1->parent_index, $item2->parent_index);
                });
                $tm = array();
                $local = array(trim($this->config->root_url, "/"), trim(preg_replace("~^https?://~", "", $this->config->root_url), "/"));
                foreach ($menu_items as $key => $item) {
                    foreach ($local as $l) {
                        $item->url = preg_replace("~^$l/?~", "", $item->url);
                    }
                    $tm[$item->index] = $item;
                }
                $menu_items = $tm;
            }

            /*Добавляем/обновляем меню*/
            $menu_items_ids = array();
            if(is_array($menu_items)) {
                foreach ($menu_items as $i=>$item) {
                    if ($item->parent_index > 0) {
                        if (!isset($menu_items[$item->parent_index]->id)) {
                            unset($menu_items[$i]);
                            continue;
                        }
                        $item->parent_id = $menu_items[$item->parent_index]->id;
                    } else {
                        $item->parent_id = 0;
                    }

                    unset($item->index);
                    unset($item->parent_index);
                    unset($item->i_tm);
                    if (empty($item->id)) {
                        $item->id = $this->links->add_link_item($item);
                    } else {
                        $this->links->update_link_item($item->id, $item);
                    }
                    if ($item->id) {
                        $menu_items_ids[] = $item->id;
                    }
                }
            }

            $this->db->query("SELECT id FROM __links");
                    foreach ($this->db->results('id') as $current_id) {
                        if (!in_array($current_id, $menu_items_ids)) {
                            $this->links->delete_link_item($current_id);
                        }
                    }


            // Отсортировать  элементы меню
            asort($menu_items_ids);
            $i = 0;
            foreach($menu_items_ids as $menu_item_id) {
                $this->links->update_link_item($menu_items_ids[$i], array('position'=>$menu_item_id));
                $i++;
            }

            $links = $this->links->get_links_items_tree();
        } else {
            /*Отображение меню*/

            $links = $this->links->get_links_items_tree();

        }

        $this->design->assign('menu_items', $links[0]);
        return $this->design->fetch('links.tpl');
    }
}