remove_action( 'woocommerce_checkout_order_review', 'woocommerce_checkout_payment', 20 );
add_filter('woocommerce_checkout_fields', 'remove_postal_code_field');
function remove_postal_code_field($fields) {
    //unset($fields['billing']['kl_newsletter_checkbox']);
		//unset($fields['billing']['billing_email']);
    return $fields;
}

add_action( 'woocommerce_checkout_after_customer_details', 'woocommerce_checkout_payment', 10 );
remove_action( 'woocommerce_before_checkout_form', 'woocommerce_checkout_coupon_form', 10 );
function custom_woocommerce_place_order_button_text( $button_text ) {
    return 'Pay now';
}
add_filter( 'woocommerce_order_button_text', 'custom_woocommerce_place_order_button_text' );
function custom_checkout_privacy_policy_text( $text ) {
    return 'One or more items in your cart is a deferred or recurring purchase. By continuing with your payment, you agree that your payment method will automatically be charged at the price and frequency listed on this page until it ends or you cancel. All cancellations are subject to the <a href="" class="click-cancellation">cancellation policy</a>.';
}
add_filter( 'woocommerce_get_privacy_policy_text', 'custom_checkout_privacy_policy_text' );

function addCouponToMiniCart(){
?>
<div class="mini-cart-nm-coupon" style="margin-bottom: 10px;">
    <div class="nm-coupon" style="display: flex;">
       <input type="text" id="nm-coupon-code" class="input-text nm-coupon-code" name="nm_coupon_code" value="" placeholder="Discount code">
       <button type="button" id="nm-apply-coupon-btn" class="button" name="nm_apply_coupon" value="" onclick="applyCoupon(this)" style="white-space: nowrap;">Apply</button>
    </div>
    <div class="nm-coupon-notify" style="display: none; color: #FF0000;"></div>
</div>
<script type="text/javascript">
function applyCoupon(button) {
    let form = button.closest('.nm-coupon');
    let couponCode = form.querySelector(".nm-coupon-code").value;
    let ajaxurl = '<?php echo admin_url('admin-ajax.php'); ?>';
    
    jQuery.ajax({
        type: "GET",
        url: ajaxurl,
        dataType: 'json',
        data: 'coupon_code=' + couponCode + '&action=custom_apply_coupon',
        success: function (data) {
            if (data.status === 'success') {
                jQuery(document.body).trigger('wc_fragment_refresh');
                if (jQuery('body').hasClass('woocommerce-checkout'))
                    jQuery(document.body).trigger('update_checkout');
            } else if (data.status === 'already_used') {
                jQuery('.nm-coupon-notify').html('Coupon already used!');
                jQuery('.nm-coupon-notify').show();
            } else {
                jQuery('.nm-coupon-notify').html('Coupon is not valid!');
                jQuery('.nm-coupon-notify').show();
            }
        },
    });
}

(function($) {
    $('body').on('click', '.woocommerce-remove-coupon', function(e) {
        e.preventDefault();
        let ajaxurl = '<?php echo admin_url('admin-ajax.php'); ?>';
        var coupon = $(this).data('coupon');
        $.ajax({
            url: ajaxurl,
            type: 'POST',
            data: {
                action: 'remove_coupon',
                coupon: coupon,
            },
            success: function(response) {
                jQuery(document.body).trigger('wc_fragment_refresh');
            },
            error: function(error) {
                console.log('Error:', error);
            }
        });
    });
})(jQuery);
</script>
<?php    
}
//add_action('woocommerce_widget_shopping_cart_before_buttons', 'addCouponToMiniCart', 20);
add_action('woocommerce_custom_checkout_counpon', 'addCouponToMiniCart', 10);

add_action('wp_ajax_custom_apply_coupon', 'custom_apply_coupon');
add_action('wp_ajax_nopriv_custom_apply_coupon', 'custom_apply_coupon');

function custom_apply_coupon() {
    $coupon_code = isset($_GET['coupon_code']) ? $_GET['coupon_code'] : '';
    $coupon_code = sanitize_text_field($coupon_code);

    // Check if the coupon is already applied
    if (WC()->cart->has_discount($coupon_code)) {
        echo json_encode(array('status' => 'already_used'));
    } else {
        // Apply coupon
        $applied = WC()->cart->apply_coupon($coupon_code);
        if ($applied) {
            echo json_encode(array('status' => 'success'));
        } else {
            echo json_encode(array('status' => 'invalid'));
        }
    }
    wp_die();
}

add_action('wp_ajax_remove_coupon', 'remove_coupon_from_cart');
add_action('wp_ajax_nopriv_remove_coupon', 'remove_coupon_from_cart');

function remove_coupon_from_cart() {
    if (isset($_POST['coupon'])) {
        $coupon_code = sanitize_text_field($_POST['coupon']);
        WC()->cart->remove_coupon($coupon_code);
        wc_clear_notices(); 
        
        wp_send_json_success();
    } else {
        wp_send_json_error('Coupon code not provided.');
    }
}