<?php
class ControllerCatalogFilter extends Controller {
    private $error = array();

    public function index() {
        $this->load->language('catalog/filter');

        $this->document->setTitle($this->language->get('heading_title'));

        $this->load->model('catalog/filter');

        $this->getList();
    }

    public function add() {
        $this->load->language('catalog/filter');

        $this->document->setTitle($this->language->get('heading_title'));

        $this->load->model('catalog/filter');

        if (($this->request->server['REQUEST_METHOD'] == 'POST') && $this->validateForm()) {
            $this->model_catalog_filter->addFilter($this->request->post);

            $this->session->data['success'] = $this->language->get('text_success');

            $url = '';

            if (isset($this->request->get['sort'])) {
                $url .= '&sort=' . $this->request->get['sort'];
            }

            if (isset($this->request->get['order'])) {
                $url .= '&order=' . $this->request->get['order'];
            }

            if (isset($this->request->get['page'])) {
                $url .= '&page=' . $this->request->get['page'];
            }

            $this->response->redirect($this->url->link('catalog/filter', 'token=' . $this->session->data['token'] . $url, true));
        }

        $this->getForm();
    }

    public function edit() {
        $this->load->language('catalog/filter');

        $this->document->setTitle($this->language->get('heading_title'));

        $this->load->model('catalog/filter');

        if (($this->request->server['REQUEST_METHOD'] == 'POST') && $this->validateForm()) {
            $this->model_catalog_filter->editFilter($this->request->get['filter_group_id'], $this->request->post);

            $this->session->data['success'] = $this->language->get('text_success');

            $url = '';

            if (isset($this->request->get['sort'])) {
                $url .= '&sort=' . $this->request->get['sort'];
            }

            if (isset($this->request->get['order'])) {
                $url .= '&order=' . $this->request->get['order'];
            }

            if (isset($this->request->get['page'])) {
                $url .= '&page=' . $this->request->get['page'];
            }

            $this->response->redirect($this->url->link('catalog/filter', 'token=' . $this->session->data['token'] . $url, true));
        }

        $this->getForm();
    }

    public function delete() {
        $this->load->language('catalog/filter');

        $this->document->setTitle($this->language->get('heading_title'));

        $this->load->model('catalog/filter');

        if (isset($this->request->post['selected']) && $this->validateDelete()) {
            foreach ($this->request->post['selected'] as $filter_group_id) {
                $this->model_catalog_filter->deleteFilter($filter_group_id);
            }

            $this->session->data['success'] = $this->language->get('text_success');

            $url = '';

            if (isset($this->request->get['sort'])) {
                $url .= '&sort=' . $this->request->get['sort'];
            }

            if (isset($this->request->get['order'])) {
                $url .= '&order=' . $this->request->get['order'];
            }

            if (isset($this->request->get['page'])) {
                $url .= '&page=' . $this->request->get['page'];
            }

            $this->response->redirect($this->url->link('catalog/filter', 'token=' . $this->session->data['token'] . $url, true));
        }

        $this->getList();
    }

    protected function getList() {
        if (isset($this->request->get['sort'])) {
            $sort = $this->request->get['sort'];
        } else {
            $sort = 'fgd.name';
        }

        if (isset($this->request->get['order'])) {
            $order = $this->request->get['order'];
        } else {
            $order = 'ASC';
        }

        if (isset($this->request->get['page'])) {
            $page = $this->request->get['page'];
        } else {
            $page = 1;
        }

        $url = '';

        if (isset($this->request->get['sort'])) {
            $url .= '&sort=' . $this->request->get['sort'];
        }

        if (isset($this->request->get['order'])) {
            $url .= '&order=' . $this->request->get['order'];
        }

        if (isset($this->request->get['page'])) {
            $url .= '&page=' . $this->request->get['page'];
        }

        $data['breadcrumbs'] = array();

        $data['breadcrumbs'][] = array(
            'text' => $this->language->get('text_home'),
            'href' => $this->url->link('common/dashboard', 'token=' . $this->session->data['token'], true)
        );

        $data['breadcrumbs'][] = array(
            'text' => $this->language->get('heading_title'),
            'href' => $this->url->link('catalog/filter', 'token=' . $this->session->data['token'] . $url, true)
        );

        $data['add'] = $this->url->link('catalog/filter/add', 'token=' . $this->session->data['token'] . $url, true);
        $data['delete'] = $this->url->link('catalog/filter/delete', 'token=' . $this->session->data['token'] . $url, true);

        $data['filters'] = array();

        $filter_data = array(
            'sort'  => $sort,
            'order' => $order,
            'start' => ($page - 1) * $this->config->get('config_limit_admin'),
            'limit' => $this->config->get('config_limit_admin')
        );

        $filter_total = $this->model_catalog_filter->getTotalFilterGroups();

        $results = $this->model_catalog_filter->getFilterGroups($filter_data);

        foreach ($results as $result) {
            $data['filters'][] = array(
                'filter_group_id' => $result['filter_group_id'],
                'name'            => $result['name'],
                'sort_order'      => $result['sort_order'],
                'edit'            => $this->url->link('catalog/filter/edit', 'token=' . $this->session->data['token'] . '&filter_group_id=' . $result['filter_group_id'] . $url, true)
            );
        }

        $data['heading_title'] = $this->language->get('heading_title');

        $data['text_list'] = $this->language->get('text_list');
        $data['text_no_results'] = $this->language->get('text_no_results');
        $data['text_confirm'] = $this->language->get('text_confirm');

        $data['column_group'] = $this->language->get('column_group');
        $data['column_sort_order'] = $this->language->get('column_sort_order');
        $data['column_action'] = $this->language->get('column_action');

        $data['button_add'] = $this->language->get('button_add');
        $data['button_edit'] = $this->language->get('button_edit');
        $data['button_delete'] = $this->language->get('button_delete');

        if (isset($this->error['warning'])) {
            $data['error_warning'] = $this->error['warning'];
        } else {
            $data['error_warning'] = '';
        }

        if (isset($this->session->data['success'])) {
            $data['success'] = $this->session->data['success'];

            unset($this->session->data['success']);
        } else {
            $data['success'] = '';
        }

        if (isset($this->request->post['selected'])) {
            $data['selected'] = (array)$this->request->post['selected'];
        } else {
            $data['selected'] = array();
        }

        $url = '';

        if ($order == 'ASC') {
            $url .= '&order=DESC';
        } else {
            $url .= '&order=ASC';
        }

        if (isset($this->request->get['page'])) {
            $url .= '&page=' . $this->request->get['page'];
        }

        $data['sort_name'] = $this->url->link('catalog/filter', 'token=' . $this->session->data['token'] . '&sort=fgd.name' . $url, true);
        $data['sort_sort_order'] = $this->url->link('catalog/filter', 'token=' . $this->session->data['token'] . '&sort=fg.sort_order' . $url, true);

        $url = '';

        if (isset($this->request->get['sort'])) {
            $url .= '&sort=' . $this->request->get['sort'];
        }

        if (isset($this->request->get['order'])) {
            $url .= '&order=' . $this->request->get['order'];
        }

        $pagination = new Pagination();
        $pagination->total = $filter_total;
        $pagination->page = $page;
        $pagination->limit = $this->config->get('config_limit_admin');
        $pagination->url = $this->url->link('catalog/filter', 'token=' . $this->session->data['token'] . $url . '&page={page}', true);

        $data['pagination'] = $pagination->render();

        $data['results'] = sprintf($this->language->get('text_pagination'), ($filter_total) ? (($page - 1) * $this->config->get('config_limit_admin')) + 1 : 0, ((($page - 1) * $this->config->get('config_limit_admin')) > ($filter_total - $this->config->get('config_limit_admin'))) ? $filter_total : ((($page - 1) * $this->config->get('config_limit_admin')) + $this->config->get('config_limit_admin')), $filter_total, ceil($filter_total / $this->config->get('config_limit_admin')));

        $data['sort'] = $sort;
        $data['order'] = $order;

        $data['header'] = $this->load->controller('common/header');
        $data['column_left'] = $this->load->controller('common/column_left');
        $data['footer'] = $this->load->controller('common/footer');

        $this->response->setOutput($this->load->view('catalog/filter_list', $data));
    }

    protected function getForm() {
        $data['heading_title'] = $this->language->get('heading_title');

        $data['text_form'] = !isset($this->request->get['filter_id']) ? $this->language->get('text_add') : $this->language->get('text_edit');

        $data['entry_group'] = $this->language->get('entry_group');
        $data['entry_name'] = $this->language->get('entry_name');
        $data['entry_sort_order'] = $this->language->get('entry_sort_order');

        $data['button_save'] = $this->language->get('button_save');
        $data['button_cancel'] = $this->language->get('button_cancel');
        $data['button_filter_add'] = $this->language->get('button_filter_add');
        $data['button_remove'] = $this->language->get('button_remove');

        if (isset($this->error['warning'])) {
            $data['error_warning'] = $this->error['warning'];
        } else {
            $data['error_warning'] = '';
        }

        if (isset($this->error['group'])) {
            $data['error_group'] = $this->error['group'];
        } else {
            $data['error_group'] = array();
        }

        if (isset($this->error['filter'])) {
            $data['error_filter'] = $this->error['filter'];
        } else {
            $data['error_filter'] = array();
        }

        $url = '';

        if (isset($this->request->get['sort'])) {
            $url .= '&sort=' . $this->request->get['sort'];
        }

        if (isset($this->request->get['order'])) {
            $url .= '&order=' . $this->request->get['order'];
        }

        if (isset($this->request->get['page'])) {
            $url .= '&page=' . $this->request->get['page'];
        }

        $data['breadcrumbs'] = array();

        $data['breadcrumbs'][] = array(
            'text' => $this->language->get('text_home'),
            'href' => $this->url->link('common/dashboard', 'token=' . $this->session->data['token'], true)
        );

        $data['breadcrumbs'][] = array(
            'text' => $this->language->get('heading_title'),
            'href' => $this->url->link('catalog/filter', 'token=' . $this->session->data['token'] . $url, true)
        );

        if (!isset($this->request->get['filter_group_id'])) {
            $data['action'] = $this->url->link('catalog/filter/add', 'token=' . $this->session->data['token'] . $url, true);
        } else {
            $data['action'] = $this->url->link('catalog/filter/edit', 'token=' . $this->session->data['token'] . '&filter_group_id=' . $this->request->get['filter_group_id'] . $url, true);
        }

        $data['cancel'] = $this->url->link('catalog/filter', 'token=' . $this->session->data['token'] . $url, true);

        if (isset($this->request->get['filter_group_id']) && ($this->request->server['REQUEST_METHOD'] != 'POST')) {
            $filter_group_info = $this->model_catalog_filter->getFilterGroup($this->request->get['filter_group_id']);
        }

        $data['token'] = $this->session->data['token'];

        $this->load->model('localisation/language');

        $data['languages'] = $this->model_localisation_language->getLanguages();

        if (isset($this->request->post['filter_group_description'])) {
            $data['filter_group_description'] = $this->request->post['filter_group_description'];
        } elseif (isset($this->request->get['filter_group_id'])) {
            $data['filter_group_description'] = $this->model_catalog_filter->getFilterGroupDescriptions($this->request->get['filter_group_id']);
        } else {
            $data['filter_group_description'] = array();
        }

        if (isset($this->request->post['sort_order'])) {
            $data['sort_order'] = $this->request->post['sort_order'];
        } elseif (!empty($filter_group_info)) {
            $data['sort_order'] = $filter_group_info['sort_order'];
        } else {
            $data['sort_order'] = '';
        }

        if (isset($this->request->post['filter'])) {
            $data['filters'] = $this->request->post['filter'];
        } elseif (isset($this->request->get['filter_group_id'])) {
            $data['filters'] = $this->model_catalog_filter->getFilterDescriptions($this->request->get['filter_group_id']);
        } else {
            $data['filters'] = array();
        }

        $data['header'] = $this->load->controller('common/header');
        $data['column_left'] = $this->load->controller('common/column_left');
        $data['footer'] = $this->load->controller('common/footer');

        $this->response->setOutput($this->load->view('catalog/filter_form', $data));
    }

    protected function validateForm() {
        if (!$this->user->hasPermission('modify', 'catalog/filter')) {
            $this->error['warning'] = $this->language->get('error_permission');
        }

        foreach ($this->request->post['filter_group_description'] as $language_id => $value) {
            if ((utf8_strlen($value['name']) < 1) || (utf8_strlen($value['name']) > 64)) {
                $this->error['group'][$language_id] = $this->language->get('error_group');
            }
        }

        if (isset($this->request->post['filter'])) {
            foreach ($this->request->post['filter'] as $filter_id => $filter) {
                foreach ($filter['filter_description'] as $language_id => $filter_description) {
                    if ((utf8_strlen($filter_description['name']) < 1) || (utf8_strlen($filter_description['name']) > 64)) {
                        $this->error['filter'][$filter_id][$language_id] = $this->language->get('error_name');
                    }
                }
            }
        }

        return !$this->error;
    }

    protected function validateDelete() {
        if (!$this->user->hasPermission('modify', 'catalog/filter')) {
            $this->error['warning'] = $this->language->get('error_permission');
        }

        return !$this->error;
    }

    public function autocomplete() {
        $json = array();

        if (isset($this->request->get['filter_name'])) {
            $this->load->model('catalog/filter');

            $filter_data = array(
                'filter_name' => $this->request->get['filter_name'],
                'start'       => 0,
                'limit'       => 5
            );

            $filters = $this->model_catalog_filter->getFilters($filter_data);

            foreach ($filters as $filter) {
                $json[] = array(
                    'filter_id' => $filter['filter_id'],
                    'name'      => strip_tags(html_entity_decode($filter['group'] . ' &gt; ' . $filter['name'], ENT_QUOTES, 'UTF-8'))
                );
            }
        }

        $sort_order = array();

        foreach ($json as $key => $value) {
            $sort_order[$key] = $value['name'];
        }

        array_multisort($sort_order, SORT_ASC, $json);

        $this->response->addHeader('Content-Type: application/json');
        $this->response->setOutput(json_encode($json));
    }

}