<?php
class ControllerExtensionTotalCoupon extends Controller {
    public function index(): string {
        if ($this->config->get('total_coupon_status')) {
            $this->load->language('extension/total/coupon');

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

            return $this->load->view('extension/total/coupon', $data);
        } else {
            return '';
        }
    }

    public function coupon(): void {
        $this->load->language('extension/total/coupon');

        $json = [];

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

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

        $coupon_info = $this->model_extension_total_coupon->getCoupon($coupon);

        if (empty($this->request->post['coupon'])) {
            $json['error'] = $this->language->get('error_empty');

            unset($this->session->data['coupon']);
        } elseif ($coupon_info) {
            $this->session->data['coupon'] = $this->request->post['coupon'];
            $this->session->data['success'] = $this->language->get('text_success');

            $json['redirect'] = $this->url->link('checkout/cart');
        } else {
            $json['error'] = $this->language->get('error_coupon');
        }

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