<?php
class ControllerExtensionTotalReward extends Controller {
    public function index() {
        $points = $this->customer->getRewardPoints();
        $points_total = 0;

        foreach ($this->cart->getProducts() as $product) {
            if ($product['points']) {
                $points_total += $product['points'];
            }
        }

        if ($points && $points_total && $this->config->get('total_reward_status')) {
            $this->load->language('extension/total/reward');

            $data['heading_title'] = sprintf($this->language->get('heading_title'), $points);
            $data['entry_reward'] = sprintf($this->language->get('entry_reward'), $points_total);

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

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

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

        $json = [];

        $points = $this->customer->getRewardPoints();

        $points_total = 0;

        foreach ($this->cart->getProducts() as $product) {
            if ($product['points']) {
                $points_total += $product['points'];
            }
        }

        if (!isset($this->request->post['reward']) || !filter_var($this->request->post['reward'], FILTER_VALIDATE_INT) || ($this->request->post['reward'] <= 0)) {
            $json['error'] = $this->language->get('error_reward');
        }

        if ($this->request->post['reward'] > $points) {
            $json['error'] = sprintf($this->language->get('error_points'), $this->request->post['reward']);
        }

        if ($this->request->post['reward'] > $points_total) {
            $json['error'] = sprintf($this->language->get('error_maximum'), $points_total);
        }

        if (!$json) {
            $this->session->data['reward'] = abs($this->request->post['reward']);
            $this->session->data['success'] = $this->language->get('text_success');

            if (isset($this->request->post['redirect'])) {
                $json['redirect'] = $this->url->link($this->request->post['redirect']);
            } else {
                $json['redirect'] = $this->url->link('checkout/cart');
            }
        }

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