<?php
class ControllerApiShipping extends Controller {

    public function address() {
        $this->load->language('api/shipping');

        // Delete old shipping address, shipping methods and method so not to cause any issues if there is an error
        unset($this->session->data['shipping_address']);
        unset($this->session->data['shipping_methods']);
        unset($this->session->data['shipping_method']);

        $json = array();

        if ($this->cart->hasShipping()) {
            if (!isset($this->session->data['api_id'])) {
                $json['error']['warning'] = $this->language->get('error_permission');
            } else {
                // Add keys for missing post vars
                $keys = array(
                    'firstname',
                    'lastname',
                    'company',
                    'address_1',
                    'address_2',
                    'postcode',
                    'city',
                    'zone_id',
                    'country_id'
                );

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

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

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

                if ((utf8_strlen(trim($this->request->post['address_1'])) < 3) || (utf8_strlen(trim($this->request->post['address_1'])) > 128)) {
                    $json['error']['address_1'] = $this->language->get('error_address_1');
                }

                if ((utf8_strlen($this->request->post['city']) < 2) || (utf8_strlen($this->request->post['city']) > 32)) {
                    $json['error']['city'] = $this->language->get('error_city');
                }

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

                $country_info = $this->model_localisation_country->getCountry($this->request->post['country_id']);

                if ($country_info && $country_info['postcode_required'] && (utf8_strlen(trim($this->request->post['postcode'])) < 2 || utf8_strlen(trim($this->request->post['postcode'])) > 10)) {
                    $json['error']['postcode'] = $this->language->get('error_postcode');
                }

                if ($this->request->post['country_id'] == '') {
                    $json['error']['country'] = $this->language->get('error_country');
                }

                if (!isset($this->request->post['zone_id']) || $this->request->post['zone_id'] == '') {
                    $json['error']['zone'] = $this->language->get('error_zone');
                }

                // Custom field validation
                $this->load->model('account/custom_field');

                $custom_fields = $this->model_account_custom_field->getCustomFields($this->config->get('config_customer_group_id'));

                foreach ($custom_fields as $custom_field) {
                    if (($custom_field['location'] == 'address') && $custom_field['required'] && empty($this->request->post['custom_field'][$custom_field['custom_field_id']])) {
                        $json['error']['custom_field' . $custom_field['custom_field_id']] = sprintf($this->language->get('error_custom_field'), $custom_field['name']);
                    } elseif (($custom_field['location'] == 'address') && ($custom_field['type'] == 'text') && !empty($custom_field['validation']) && !filter_var($this->request->post['custom_field'][$custom_field['custom_field_id']], FILTER_VALIDATE_REGEXP, array(
                            'options' => array( 'regexp' => $custom_field['validation'] ) ))) {
                        $json['error']['custom_field' . $custom_field['custom_field_id']] = sprintf($this->language->get('error_custom_field'), $custom_field['name']);
                    }
                }

                if (!$json) {
                    $this->load->model('localisation/country');

                    $country_info = $this->model_localisation_country->getCountry($this->request->post['country_id']);

                    if ($country_info) {
                        $country = $country_info['name'];
                        $iso_code_2 = $country_info['iso_code_2'];
                        $iso_code_3 = $country_info['iso_code_3'];
                        $address_format = $country_info['address_format'];
                    } else {
                        $country = '';
                        $iso_code_2 = '';
                        $iso_code_3 = '';
                        $address_format = '';
                    }

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

                    $zone_info = $this->model_localisation_zone->getZone($this->request->post['zone_id']);

                    if ($zone_info) {
                        $zone = $zone_info['name'];
                        $zone_code = $zone_info['code'];
                    } else {
                        $zone = '';
                        $zone_code = '';
                    }

                    $this->session->data['shipping_address'] = array(
                        'firstname'      => $this->request->post['firstname'],
                        'lastname'       => $this->request->post['lastname'],
                        'company'        => $this->request->post['company'],
                        'address_1'      => $this->request->post['address_1'],
                        'address_2'      => $this->request->post['address_2'],
                        'postcode'       => $this->request->post['postcode'],
                        'city'           => $this->request->post['city'],
                        'zone_id'        => $this->request->post['zone_id'],
                        'zone'           => $zone,
                        'zone_code'      => $zone_code,
                        'country_id'     => $this->request->post['country_id'],
                        'country'        => $country,
                        'iso_code_2'     => $iso_code_2,
                        'iso_code_3'     => $iso_code_3,
                        'address_format' => $address_format,
                        'custom_field'   => isset($this->request->post['custom_field']) ? $this->request->post['custom_field'] : array()
                    );

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

                    unset($this->session->data['shipping_method']);
                    unset($this->session->data['shipping_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));
    }

    public function methods() {
        $this->load->language('api/shipping');

        // Delete past shipping methods and method just in case there is an error
        unset($this->session->data['shipping_methods']);
        unset($this->session->data['shipping_method']);

        $json = array();

        if (!isset($this->session->data['api_id'])) {
            $json['error'] = $this->language->get('error_permission');
        } elseif ($this->cart->hasShipping()) {
            if (!isset($this->session->data['shipping_address'])) {
                $json['error'] = $this->language->get('error_address');
            }

            if (!$json) {
                // Shipping Methods
                $json['shipping_methods'] = array();

                $this->load->model('extension/extension');

                $results = $this->model_extension_extension->getExtensions('shipping');

                foreach ($results as $result) {
                    if ($this->config->get($result['code'] . '_status')) {
                        $this->load->model('extension/shipping/' . $result['code']);

                        $quote = $this->{'model_extension_shipping_' . $result['code']}->getQuote($this->session->data['shipping_address']);

                        if ($quote) {
                            $json['shipping_methods'][$result['code']] = array(
                                'title'      => $quote['title'],
                                'quote'      => $quote['quote'],
                                'sort_order' => $quote['sort_order'],
                                'error'      => $quote['error']
                            );
                        }
                    }
                }

                $sort_order = array();

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

                array_multisort($sort_order, SORT_ASC, $json['shipping_methods']);

                if ($json['shipping_methods']) {
                    $this->session->data['shipping_methods'] = $json['shipping_methods'];
                } else {
                    $json['error'] = $this->language->get('error_no_shipping');
                }
            }
        } else {
            $json['shipping_methods'] = array();
        }

        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 method() {
        $this->load->language('api/shipping');

        // Delete old shipping method so not to cause any issues if there is an error
        unset($this->session->data['shipping_method']);

        $json = array();

        if (!isset($this->session->data['api_id'])) {
            $json['error'] = $this->language->get('error_permission');
        } else {
            if ($this->cart->hasShipping()) {
                // Shipping Address
                if (!isset($this->session->data['shipping_address'])) {
                    $json['error'] = $this->language->get('error_address');
                }

                // Shipping Method
                if (empty($this->session->data['shipping_methods'])) {
                    $json['error'] = $this->language->get('error_no_shipping');
                } elseif (!isset($this->request->post['shipping_method'])) {
                    $json['error'] = $this->language->get('error_method');
                } else {
                    $shipping = explode('.', $this->request->post['shipping_method']);

                    if (!isset($shipping[0]) || !isset($shipping[1]) || !isset($this->session->data['shipping_methods'][$shipping[0]]['quote'][$shipping[1]])) {
                        $json['error'] = $this->language->get('error_method');
                    }
                }

                if (!$json) {
                    $this->session->data['shipping_method'] = $this->session->data['shipping_methods'][$shipping[0]]['quote'][$shipping[1]];

                    $json['success'] = $this->language->get('text_method');
                }
            } else {
                unset($this->session->data['shipping_address']);
                unset($this->session->data['shipping_method']);
                unset($this->session->data['shipping_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));
    }

}