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

    public function index() {
        $this->load->language('sale/return');

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

        $this->load->model('sale/return');

        $this->getList();
    }

    public function add() {
        $this->load->language('sale/return');

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

        $this->load->model('sale/return');

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

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

            $url = '';

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

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

            if (isset($this->request->get['filter_customer'])) {
                $url .= '&filter_customer=' . urlencode(html_entity_decode($this->request->get['filter_customer'], ENT_QUOTES, 'UTF-8'));
            }

            if (isset($this->request->get['filter_product'])) {
                $url .= '&filter_product=' . urlencode(html_entity_decode($this->request->get['filter_product'], ENT_QUOTES, 'UTF-8'));
            }

            if (isset($this->request->get['filter_model'])) {
                $url .= '&filter_model=' . urlencode(html_entity_decode($this->request->get['filter_model'], ENT_QUOTES, 'UTF-8'));
            }

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

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

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

            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('sale/return', 'token=' . $this->session->data['token'] . $url, true));
        }

        $this->getForm();
    }

    public function edit() {
        $this->load->language('sale/return');

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

        $this->load->model('sale/return');

        if (($this->request->server['REQUEST_METHOD'] == 'POST') && $this->validateForm()) {
            $this->model_sale_return->editReturn($this->request->get['return_id'], $this->request->post);

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

            $url = '';

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

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

            if (isset($this->request->get['filter_customer'])) {
                $url .= '&filter_customer=' . urlencode(html_entity_decode($this->request->get['filter_customer'], ENT_QUOTES, 'UTF-8'));
            }

            if (isset($this->request->get['filter_product'])) {
                $url .= '&filter_product=' . urlencode(html_entity_decode($this->request->get['filter_product'], ENT_QUOTES, 'UTF-8'));
            }

            if (isset($this->request->get['filter_model'])) {
                $url .= '&filter_model=' . urlencode(html_entity_decode($this->request->get['filter_model'], ENT_QUOTES, 'UTF-8'));
            }

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

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

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

            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('sale/return', 'token=' . $this->session->data['token'] . $url, true));
        }

        $this->getForm();
    }

    public function delete() {
        $this->load->language('sale/return');

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

        $this->load->model('sale/return');

        if (isset($this->request->post['selected']) && $this->validateDelete()) {
            foreach ($this->request->post['selected'] as $return_id) {
                $this->model_sale_return->deleteReturn($return_id);
            }

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

            $url = '';

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

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

            if (isset($this->request->get['filter_customer'])) {
                $url .= '&filter_customer=' . urlencode(html_entity_decode($this->request->get['filter_customer'], ENT_QUOTES, 'UTF-8'));
            }

            if (isset($this->request->get['filter_product'])) {
                $url .= '&filter_product=' . urlencode(html_entity_decode($this->request->get['filter_product'], ENT_QUOTES, 'UTF-8'));
            }

            if (isset($this->request->get['filter_model'])) {
                $url .= '&filter_model=' . urlencode(html_entity_decode($this->request->get['filter_model'], ENT_QUOTES, 'UTF-8'));
            }

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

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

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

            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('sale/return', 'token=' . $this->session->data['token'] . $url, true));
        }

        $this->getList();
    }

    protected function getList() {
        if (isset($this->request->get['filter_return_id'])) {
            $filter_return_id = $this->request->get['filter_return_id'];
        } else {
            $filter_return_id = null;
        }

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

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

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

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

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

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

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

        if (isset($this->request->get['sort'])) {
            $sort = $this->request->get['sort'];
        } else {
            $sort = 'r.return_id';
        }

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

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

        $url = '';

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

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

        if (isset($this->request->get['filter_customer'])) {
            $url .= '&filter_customer=' . urlencode(html_entity_decode($this->request->get['filter_customer'], ENT_QUOTES, 'UTF-8'));
        }

        if (isset($this->request->get['filter_product'])) {
            $url .= '&filter_product=' . urlencode(html_entity_decode($this->request->get['filter_product'], ENT_QUOTES, 'UTF-8'));
        }

        if (isset($this->request->get['filter_model'])) {
            $url .= '&filter_model=' . urlencode(html_entity_decode($this->request->get['filter_model'], ENT_QUOTES, 'UTF-8'));
        }

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

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

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

        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('sale/return', 'token=' . $this->session->data['token'] . $url, true)
        );

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

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

        $filter_data = array(
            'filter_return_id'        => $filter_return_id,
            'filter_order_id'         => $filter_order_id,
            'filter_customer'         => $filter_customer,
            'filter_product'          => $filter_product,
            'filter_model'            => $filter_model,
            'filter_return_status_id' => $filter_return_status_id,
            'filter_date_added'       => $filter_date_added,
            'filter_date_modified'    => $filter_date_modified,
            'sort'                    => $sort,
            'order'                   => $order,
            'start'                   => ($page - 1) * $this->config->get('config_limit_admin'),
            'limit'                   => $this->config->get('config_limit_admin')
        );

        $return_total = $this->model_sale_return->getTotalReturns($filter_data);

        $results = $this->model_sale_return->getReturns($filter_data);

        foreach ($results as $result) {
            $data['returns'][] = array(
                'return_id'     => $result['return_id'],
                'order_id'      => $result['order_id'],
                'customer'      => $result['customer'],
                'product'       => $result['product'],
                'model'         => $result['model'],
                'status'        => $result['status'],
                'date_added'    => date($this->language->get('date_format_short'), strtotime($result['date_added'])),
                'date_modified' => date($this->language->get('date_format_short'), strtotime($result['date_modified'])),
                'edit'          => $this->url->link('sale/return/edit', 'token=' . $this->session->data['token'] . '&return_id=' . $result['return_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_return_id'] = $this->language->get('column_return_id');
        $data['column_order_id'] = $this->language->get('column_order_id');
        $data['column_customer'] = $this->language->get('column_customer');
        $data['column_product'] = $this->language->get('column_product');
        $data['column_model'] = $this->language->get('column_model');
        $data['column_status'] = $this->language->get('column_status');

        $data['column_date_added'] = $this->language->get('column_date_added');
        $data['column_date_modified'] = $this->language->get('column_date_modified');
        $data['column_action'] = $this->language->get('column_action');

        $data['entry_return_id'] = $this->language->get('entry_return_id');
        $data['entry_order_id'] = $this->language->get('entry_order_id');
        $data['entry_customer'] = $this->language->get('entry_customer');
        $data['entry_product'] = $this->language->get('entry_product');
        $data['entry_model'] = $this->language->get('entry_model');
        $data['entry_return_status'] = $this->language->get('entry_return_status');
        $data['entry_date_added'] = $this->language->get('entry_date_added');
        $data['entry_date_modified'] = $this->language->get('entry_date_modified');

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

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

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

            unset($this->session->data['error']);
        } elseif (isset($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 (isset($this->request->get['filter_return_id'])) {
            $url .= '&filter_return_id=' . $this->request->get['filter_return_id'];
        }

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

        if (isset($this->request->get['filter_customer'])) {
            $url .= '&filter_customer=' . urlencode(html_entity_decode($this->request->get['filter_customer'], ENT_QUOTES, 'UTF-8'));
        }

        if (isset($this->request->get['filter_product'])) {
            $url .= '&filter_product=' . urlencode(html_entity_decode($this->request->get['filter_product'], ENT_QUOTES, 'UTF-8'));
        }

        if (isset($this->request->get['filter_model'])) {
            $url .= '&filter_model=' . urlencode(html_entity_decode($this->request->get['filter_model'], ENT_QUOTES, 'UTF-8'));
        }

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

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

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

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

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

        $data['sort_return_id'] = $this->url->link('sale/return', 'token=' . $this->session->data['token'] . '&sort=r.return_id' . $url, true);
        $data['sort_order_id'] = $this->url->link('sale/return', 'token=' . $this->session->data['token'] . '&sort=r.order_id' . $url, true);
        $data['sort_customer'] = $this->url->link('sale/return', 'token=' . $this->session->data['token'] . '&sort=customer' . $url, true);
        $data['sort_product'] = $this->url->link('sale/return', 'token=' . $this->session->data['token'] . '&sort=r.product' . $url, true);
        $data['sort_model'] = $this->url->link('sale/return', 'token=' . $this->session->data['token'] . '&sort=r.model' . $url, true);
        $data['sort_status'] = $this->url->link('sale/return', 'token=' . $this->session->data['token'] . '&sort=status' . $url, true);
        $data['sort_date_added'] = $this->url->link('sale/return', 'token=' . $this->session->data['token'] . '&sort=r.date_added' . $url, true);
        $data['sort_date_modified'] = $this->url->link('sale/return', 'token=' . $this->session->data['token'] . '&sort=r.date_modified' . $url, true);

        $url = '';

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

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

        if (isset($this->request->get['filter_customer'])) {
            $url .= '&filter_customer=' . urlencode(html_entity_decode($this->request->get['filter_customer'], ENT_QUOTES, 'UTF-8'));
        }

        if (isset($this->request->get['filter_product'])) {
            $url .= '&filter_product=' . urlencode(html_entity_decode($this->request->get['filter_product'], ENT_QUOTES, 'UTF-8'));
        }

        if (isset($this->request->get['filter_model'])) {
            $url .= '&filter_model=' . urlencode(html_entity_decode($this->request->get['filter_model'], ENT_QUOTES, 'UTF-8'));
        }

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

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

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

        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 = $return_total;
        $pagination->page = $page;
        $pagination->limit = $this->config->get('config_limit_admin');
        $pagination->url = $this->url->link('sale/return', 'token=' . $this->session->data['token'] . $url . '&page={page}', true);

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

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

        $data['filter_return_id'] = $filter_return_id;
        $data['filter_order_id'] = $filter_order_id;
        $data['filter_customer'] = $filter_customer;
        $data['filter_product'] = $filter_product;
        $data['filter_model'] = $filter_model;
        $data['filter_return_status_id'] = $filter_return_status_id;
        $data['filter_date_added'] = $filter_date_added;
        $data['filter_date_modified'] = $filter_date_modified;

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

        $data['return_statuses'] = $this->model_localisation_return_status->getReturnStatuses();

        $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('sale/return_list', $data));
    }

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

        $data['text_form'] = !isset($this->request->get['return_id']) ? $this->language->get('text_add') : $this->language->get('text_edit');
        $data['text_select'] = $this->language->get('text_select');
        $data['text_opened'] = $this->language->get('text_opened');
        $data['text_unopened'] = $this->language->get('text_unopened');
        $data['text_order'] = $this->language->get('text_order');
        $data['text_product'] = $this->language->get('text_product');
        $data['text_history'] = $this->language->get('text_history');
        $data['text_loading'] = $this->language->get('text_loading');

        $data['entry_customer'] = $this->language->get('entry_customer');
        $data['entry_order_id'] = $this->language->get('entry_order_id');
        $data['entry_date_ordered'] = $this->language->get('entry_date_ordered');
        $data['entry_firstname'] = $this->language->get('entry_firstname');
        $data['entry_lastname'] = $this->language->get('entry_lastname');
        $data['entry_email'] = $this->language->get('entry_email');
        $data['entry_telephone'] = $this->language->get('entry_telephone');
        $data['entry_product'] = $this->language->get('entry_product');
        $data['entry_model'] = $this->language->get('entry_model');
        $data['entry_quantity'] = $this->language->get('entry_quantity');
        $data['entry_opened'] = $this->language->get('entry_opened');
        $data['entry_return_reason'] = $this->language->get('entry_return_reason');
        $data['entry_return_action'] = $this->language->get('entry_return_action');
        $data['entry_return_status'] = $this->language->get('entry_return_status');
        $data['entry_comment'] = $this->language->get('entry_comment');
        $data['entry_notify'] = $this->language->get('entry_notify');

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

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

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

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

        if (isset($this->request->get['return_id'])) {
            $data['return_id'] = $this->request->get['return_id'];
        } else {
            $data['return_id'] = 0;
        }

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

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

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

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

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

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

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

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

        $url = '';

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

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

        if (isset($this->request->get['filter_customer'])) {
            $url .= '&filter_customer=' . urlencode(html_entity_decode($this->request->get['filter_customer'], ENT_QUOTES, 'UTF-8'));
        }

        if (isset($this->request->get['filter_product'])) {
            $url .= '&filter_product=' . urlencode(html_entity_decode($this->request->get['filter_product'], ENT_QUOTES, 'UTF-8'));
        }

        if (isset($this->request->get['filter_model'])) {
            $url .= '&filter_model=' . urlencode(html_entity_decode($this->request->get['filter_model'], ENT_QUOTES, 'UTF-8'));
        }

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

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

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

        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('sale/return', 'token=' . $this->session->data['token'] . $url, true)
        );

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

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

        if (isset($this->request->get['return_id']) && ($this->request->server['REQUEST_METHOD'] != 'POST')) {
            $return_info = $this->model_sale_return->getReturn($this->request->get['return_id']);
        }

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

        if (isset($this->request->post['date_ordered'])) {
            $data['date_ordered'] = $this->request->post['date_ordered'];
        } elseif (!empty($return_info)) {
            $data['date_ordered'] = ($return_info['date_ordered'] != '0000-00-00' ? $return_info['date_ordered'] : '');
        } else {
            $data['date_ordered'] = '';
        }

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

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

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

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

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

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

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

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

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

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

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

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

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

        $data['return_reasons'] = $this->model_localisation_return_reason->getReturnReasons();

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

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

        $data['return_actions'] = $this->model_localisation_return_action->getReturnActions();

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

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

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

        $data['return_statuses'] = $this->model_localisation_return_status->getReturnStatuses();

        $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('sale/return_form', $data));
    }

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

        if (empty($this->request->post['order_id'])) {
            $this->error['order_id'] = $this->language->get('error_order_id');
        }

        if ((utf8_strlen(trim($this->request->post['firstname'])) < 1) || (utf8_strlen(trim($this->request->post['firstname'])) > 32)) {
            $this->error['firstname'] = $this->language->get('error_firstname');
        }

        if ((utf8_strlen(trim($this->request->post['lastname'])) < 1) || (utf8_strlen(trim($this->request->post['lastname'])) > 32)) {
            $this->error['lastname'] = $this->language->get('error_lastname');
        }

        if ((utf8_strlen($this->request->post['email']) > 96) || !filter_var($this->request->post['email'], FILTER_VALIDATE_EMAIL)) {
            $this->error['email'] = $this->language->get('error_email');
        }

        if ((utf8_strlen($this->request->post['telephone']) < 3) || (utf8_strlen($this->request->post['telephone']) > 32)) {
            $this->error['telephone'] = $this->language->get('error_telephone');
        }

        if ((utf8_strlen($this->request->post['product']) < 1) || (utf8_strlen($this->request->post['product']) > 255)) {
            $this->error['product'] = $this->language->get('error_product');
        }

        if ((utf8_strlen($this->request->post['model']) < 1) || (utf8_strlen($this->request->post['model']) > 64)) {
            $this->error['model'] = $this->language->get('error_model');
        }

        if (empty($this->request->post['return_reason_id'])) {
            $this->error['reason'] = $this->language->get('error_reason');
        }

        if ($this->error && !isset($this->error['warning'])) {
            $this->error['warning'] = $this->language->get('error_warning');
        }

        return !$this->error;
    }

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

        return !$this->error;
    }

    public function history() {
        $this->load->language('sale/return');

        $data['error'] = '';
        $data['success'] = '';

        $this->load->model('sale/return');

        if ($this->request->server['REQUEST_METHOD'] == 'POST') {
            if (!$this->user->hasPermission('modify', 'sale/return')) {
                $data['error'] = $this->language->get('error_permission');
            }

            if (!$data['error']) {
                $this->model_sale_return->addReturnHistory($this->request->get['return_id'], $this->request->post);

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

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

        $data['column_date_added'] = $this->language->get('column_date_added');
        $data['column_status'] = $this->language->get('column_status');
        $data['column_notify'] = $this->language->get('column_notify');
        $data['column_comment'] = $this->language->get('column_comment');

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

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

        $results = $this->model_sale_return->getReturnHistories($this->request->get['return_id'], ($page - 1) * 10, 10);

        foreach ($results as $result) {
            $data['histories'][] = array(
                'notify'     => $result['notify'] ? $this->language->get('text_yes') : $this->language->get('text_no'),
                'status'     => $result['status'],
                'comment'    => nl2br($result['comment']),
                'date_added' => date($this->language->get('date_format_short'), strtotime($result['date_added']))
            );
        }

        $history_total = $this->model_sale_return->getTotalReturnHistories($this->request->get['return_id']);

        $pagination = new Pagination();
        $pagination->total = $history_total;
        $pagination->page = $page;
        $pagination->limit = 10;
        $pagination->url = $this->url->link('sale/return/history', 'token=' . $this->session->data['token'] . '&return_id=' . $this->request->get['return_id'] . '&page={page}', true);

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

        $data['results'] = sprintf($this->language->get('text_pagination'), ($history_total) ? (($page - 1) * 10) + 1 : 0, ((($page - 1) * 10) > ($history_total - 10)) ? $history_total : ((($page - 1) * 10) + 10), $history_total, ceil($history_total / 10));

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

}