<?php
class ControllerApiVoucher extends Controller {

    public function index() {
        $this->load->language('api/voucher');

        // Delete past voucher in case there is an error
        unset($this->session->data['voucher']);

        $json = array();

        if (!isset($this->session->data['api_id'])) {
            $json['error'] = $this->language->get('error_permission');
        } else {
            $this->load->model('extension/total/voucher');

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

            $voucher_info = $this->model_extension_total_voucher->getVoucher($voucher);

            if ($voucher_info) {
                $this->session->data['voucher'] = $this->request->post['voucher'];

                $json['success'] = $this->language->get('text_success');
            } else {
                $json['error'] = $this->language->get('error_voucher');
            }
        }

        if (isset($this->request->server['HTTP_ORIGIN'])) {
            $this->response->addHeader('Access-Control-Allow-Origin: ' . $this->request->server['HTTP_ORIGIN']);
            $this->response->addHeader('Access-Control-Allow-Methods: GET, PUT, POST, DELETE, OPTIONS');
            $this->response->addHeader('Access-Control-Max-Age: 1000');
            $this->response->addHeader('Access-Control-Allow-Headers: Content-Type, Authorization, X-Requested-With');
        }

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

    public function add() {
        $this->load->language('api/voucher');

        $json = array();

        if (!isset($this->session->data['api_id'])) {
            $json['error']['warning'] = $this->language->get('error_permission');
        } else {
            // Add keys for missing post vars
            $keys = array(
                'from_name',
                'from_email',
                'to_name',
                'to_email',
                'voucher_theme_id',
                'message',
                'amount'
            );

            foreach ($keys as $key) {
                if (!isset($this->request->post[$key])) {
                    $this->request->post[$key] = '';
                }
            }

            if (isset($this->request->post['voucher'])) {
                $this->session->data['vouchers'] = array();

                foreach ($this->request->post['voucher'] as $voucher) {
                    if (isset($voucher['code']) && isset($voucher['to_name']) && isset($voucher['to_email']) && isset($voucher['from_name']) && isset($voucher['from_email']) && isset($voucher['voucher_theme_id']) && isset($voucher['message']) && isset($voucher['amount'])) {
                        $this->session->data['vouchers'][$voucher['code']] = array(
                            'code'             => $voucher['code'],
                            'description'      => sprintf($this->language->get('text_for'), $this->currency->format($this->currency->convert($voucher['amount'], $this->session->data['currency'], $this->config->get('config_currency')), $this->session->data['currency']), $voucher['to_name']),
                            'to_name'          => $voucher['to_name'],
                            'to_email'         => $voucher['to_email'],
                            'from_name'        => $voucher['from_name'],
                            'from_email'       => $voucher['from_email'],
                            'voucher_theme_id' => $voucher['voucher_theme_id'],
                            'message'          => $voucher['message'],
                            'amount'           => $this->currency->convert($voucher['amount'], $this->session->data['currency'], $this->config->get('config_currency'))
                        );
                    }
                }

                $json['success'] = $this->language->get('text_cart');

                unset($this->session->data['shipping_method']);
                unset($this->session->data['shipping_methods']);
                unset($this->session->data['payment_method']);
                unset($this->session->data['payment_methods']);
            } else {
                // Add a new voucher if set
                if ((utf8_strlen($this->request->post['from_name']) < 1) || (utf8_strlen($this->request->post['from_name']) > 64)) {
                    $json['error']['from_name'] = $this->language->get('error_from_name');
                }

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

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

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

                if (($this->request->post['amount'] < $this->config->get('config_voucher_min')) || ($this->request->post['amount'] > $this->config->get('config_voucher_max'))) {
                    $json['error']['amount'] = sprintf($this->language->get('error_amount'), $this->currency->format($this->config->get('config_voucher_min'), $this->session->data['currency']), $this->currency->format($this->config->get('config_voucher_max'), $this->session->data['currency']));
                }

                if (!$json) {
                    $code = mt_rand();

                    $this->session->data['vouchers'][$code] = array(
                        'code'             => $code,
                        'description'      => sprintf($this->language->get('text_for'), $this->currency->format($this->currency->convert($this->request->post['amount'], $this->session->data['currency'], $this->config->get('config_currency')), $this->session->data['currency']), $this->request->post['to_name']),
                        'to_name'          => $this->request->post['to_name'],
                        'to_email'         => $this->request->post['to_email'],
                        'from_name'        => $this->request->post['from_name'],
                        'from_email'       => $this->request->post['from_email'],
                        'voucher_theme_id' => $this->request->post['voucher_theme_id'],
                        'message'          => $this->request->post['message'],
                        'amount'           => $this->currency->convert($this->request->post['amount'], $this->session->data['currency'], $this->config->get('config_currency'))
                    );

                    $json['success'] = $this->language->get('text_cart');

                    unset($this->session->data['shipping_method']);
                    unset($this->session->data['shipping_methods']);
                    unset($this->session->data['payment_method']);
                    unset($this->session->data['payment_methods']);
                }
            }
        }

        if (isset($this->request->server['HTTP_ORIGIN'])) {
            $this->response->addHeader('Access-Control-Allow-Origin: ' . $this->request->server['HTTP_ORIGIN']);
            $this->response->addHeader('Access-Control-Allow-Methods: GET, PUT, POST, DELETE, OPTIONS');
            $this->response->addHeader('Access-Control-Max-Age: 1000');
            $this->response->addHeader('Access-Control-Allow-Headers: Content-Type, Authorization, X-Requested-With');
        }

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

}