vindi/vindi-woocommerce

A file should declare new symbols (classes, functions, constants, etc.) and cause no other side effects, or it should execute logic with side effects, but should not do both. The first symbol is defined on line 14 and the first side effect is on line 8.
<?php
 
namespace VindiPaymentGateways;
 
use WC_Coupon;
 
Expected 0 spaces before closing bracket; 1 found
Expected 0 spaces after opening bracket; 1 found
Space after opening parenthesis of function call prohibited
if ( ! defined( 'ABSPATH' ) ) {
Spaces must be used to indent lines; tabs are not allowed
    exit; // Exit if accessed directly
}
 
/**
 * WC_Meta_Box_Coupon_Data Class updated with custom fields.
 */
Opening brace of a class must be on the line after the definition
class CouponsMetaBox {
 
    /**
     * Output the metabox.
     *
     * @param int $coupon_id
     * @param WC_Coupon $coupon
     */
    public static function output($coupon_id, $coupon)
    {
        $arr = array(
            'id'      => 'cycle_count',
            'label'   => __('Número de ciclos do cupom', VINDI),
            'value'   => get_post_meta($coupon_id, 'cycle_count')[0],
            'options' => array(
              '0'  => 'Todos os ciclos',
              '1'  => '1 ciclo',
              '2'  => '2 ciclos',
              '3'  => '3 ciclos',
              '4'  => '4 ciclos',
              '5'  => '5 ciclos',
              '6'  => '6 ciclos',
              '7'  => '7 ciclos',
              '8'  => '8 ciclos',
              '9'  => '9 ciclos',
              '10' => '10 ciclos',
              '11' => '11 ciclos',
              '12' => '12 ciclos',
            ),
        );
 
        if ($coupon->get_discount_type() == 'recurring_percent') {
            array_push($arr, 'class', 'hidden');
        }
 
        woocommerce_wp_select($arr);
    }
 
    /**
     * Save meta box custom fields data.
     *
     * @param int     $post_id
     * @param WP_Post $post
     */
save accesses the super-global variable $_POST.
Avoid unused parameters such as '$post'.
    public static function save($post_id, $post)
    {
        // Check the nonce (again).
Avoid using static access to class 'VindiPaymentGateways\VindiHelpers' in method 'save'.
        if (empty(VindiHelpers::sanitize_xss($_POST['woocommerce_meta_nonce'])) ||
Avoid using static access to class 'VindiPaymentGateways\VindiHelpers' in method 'save'.
            !wp_verify_nonce(VindiHelpers::sanitize_xss($_POST['woocommerce_meta_nonce']), 'woocommerce_save_data')) {
            return;
        }
        $coupon = new WC_Coupon($post_id);
        $coupon->update_meta_data('cycle_count', intval(filter_var($_POST['cycle_count'], FILTER_SANITIZE_NUMBER_INT)));
        $coupon->save();
    }
 
    /**
     * Remove Woocommerce Subscriptions recurring discount options.
     * This is done to force the user to select a vindi cicle count discount
     *
     * @param array $discount_types
     */
    public static function remove_ws_recurring_discount($discount_types)
    {
        return array_diff(
            $discount_types,
            array(
              'sign_up_fee'         => __('Sign Up Fee Discount', 'woocommerce-subscriptions'),
              'sign_up_fee_percent' => __('Sign Up Fee % Discount', 'woocommerce-subscriptions'),
              'recurring_fee'       => __('Recurring Product Discount', 'woocommerce-subscriptions')
            )
        );
    }
}