Algol Plus Ltd

<?php
if ( ! defined( 'ABSPATH' ) ) {
  exit; // Exit if accessed directly
}

/**
 * Plugin Name: Flexible Product Fields
 * Plugin URI: https://wordpress.org/plugins/flexible-product-fields/
 * Author: WP Desk
 *
 * Class WDP_WCFPF_Compatibility
 */
class WDP_WCFPF_Compatibility {
  const KEY = 'wc_flexible_product_fields';
  const WDP_VERSION = '2.2.4';
  const TARGET_VERSION = '1.2.8';

  public function is_required() {
    return class_exists( 'Flexible_Product_Fields_Plugin' );
  }

  public function admin_install() {
  }

  public function remove_admin_hooks() {
  }

  /**
   * @param WDP_Price_Display $price_display
   */
  public function install( $price_display ) {
    add_filter( 'wdp_save_cart_item_keys', array( $this, 'wdp_save_cart_item_keys' ), 10, 1 );
    add_filter( 'wdp_cart_item_data_before_apply', array( $this, 'wdp_cart_item_data_before_apply' ), 10, 2 );
    add_filter( 'wdp_original_cart_item_data', array( $this, 'wdp_original_cart_item_data' ), 10, 1 );
  }

  public function remove_hooks() {
    remove_filter( 'wdp_save_cart_item_keys', array( $this, 'wdp_save_cart_item_keys' ), 10 );
    remove_filter( 'wdp_cart_item_data_before_apply', array( $this, 'wdp_cart_item_data_before_apply' ), 10 );
    remove_filter( 'wdp_original_cart_item_data', array( $this, 'wdp_original_cart_item_data' ), 10 );
  }

  public function wdp_save_cart_item_keys( $keys ) {
    $keys[] = 'flexible_product_fields';

    return $keys;
  }

  public function wdp_cart_item_data_before_apply( $cart_item_data, $original_cart_item_data ) {
    if ( isset( $original_cart_item_data['flexible_product_fields'] ) ) {
      $cart_item_data['flexible_product_fields'] = $original_cart_item_data['flexible_product_fields'];
    }

    return $cart_item_data;
  }

  public function wdp_original_cart_item_data( $original_cart_item_data ) {
    unset( $original_cart_item_data['flexible_product_fields'] );

    return $original_cart_item_data;
  }

}

$cmp = new WDP_WCFPF_Compatibility();
if ( $cmp->is_required() ) {
  $cmp->install( null );
}