Confirm email fiedl for no logged in users only

confirm_email_field_for_non_logged_in_users_only

class Create_Confirm_Email_Field {

	public $email_required_msg = '';
	public $email_not_matched  = '';
	public $display_page       = false;

	public function __construct() {

		// Run this feature only for guest users
		if ( is_user_logged_in() ) {
			return;
		}

		add_action( 'wfacp_template_load', [ $this, 'action' ] );
		add_action( 'wfacp_after_billing_email_field', [ $this, 'create_field' ] );
		add_action( 'wfacp_internal_css', [ $this, 'internal_script' ] );
	}

	public function action() {
		$this->display_page       = true;
		$this->email_required_msg = __( '<b>Confirm Email</b> is a required field.', 'woocommerce' );
		$this->email_not_matched  = __( '<b>Confirm Email</b> does not match.', 'woocommerce' );

		add_action( 'woocommerce_after_checkout_validation', [ $this, 'matching_email_addresses' ], 8, 2 );
	}

	public function create_field() {
		if ( false === $this->display_page ) {
			return;
		}

		$field = array(
			'label'       => __( 'Confirm Email', 'woocommerce-email-validation' ),
			'type'        => 'email',
			'field_type'  => 'billing',
			'placeholder' => _x( 'Confirm Email *', 'placeholder', 'woocommerce-email-validation' ),
			'required'    => true,
			'input_class' => array( 'wfacp-form-control' ),
			'label_class' => array( 'wfacp-form-control-label' ),
			'class'       => apply_filters( 'woocommerce_confirm_email_field_class', array( 'wfacp-form-control-wrapper wfacp-col-full' ) ),
			'clear'       => true,
			'validate'    => array( 'email' ),
			'id'          => 'billing_email_2',
		);

		woocommerce_form_field( 'billing_email_2', $field );
	}

	public function matching_email_addresses( $data, $errors ) {
		$email1 = isset( $_POST['billing_email'] ) ? wc_clean( wp_unslash( $_POST['billing_email'] ) ) : '';
		$email2 = isset( $_POST['billing_email_2'] ) ? wc_clean( wp_unslash( $_POST['billing_email_2'] ) ) : '';

		if ( empty( $email2 ) ) {
			$errors->add( 'validation', $this->email_required_msg );
		} elseif ( $email2 !== $email1 ) {
			$errors->add( 'validation', $this->email_not_matched );
		}
	}

	public function internal_script() {
		if ( false === $this->display_page ) {
			return;
		}
		?>
		<script>
			(function ($) {
				$(document).ready(function () {

					var empty = '<?php echo esc_js( $this->email_required_msg ); ?>';
					var not_match = '<?php echo esc_js( $this->email_not_matched ); ?>';

					wfacp_frontend.hooks.addAction('wfacp_fields_validation', validation_check);
					wfacp_frontend.hooks.addFilter('wfacp_field_error_message', error_msg);

					if ($('#billing_email').length > 0 && $('#billing_email_2').length > 0) {
						$('body').on('focusout', '#billing_email_2', function () {
							validation_check();
						});
					}

					function error_msg(msg) {
						if (msg == '<strong>Confirm Email Address</strong>  is a required field.') {
							return empty;
						}
						if (msg == '<strong>Confirm Email Address</strong>  is not a valid email address.') {
							return not_match;
						}
						return msg;
					}

					function validation_check() {
						var billing_email = $('#billing_email').val();
						var billing_email_2 = $('#billing_email_2').val();

						if ($('#billing_email_field').length > 0 && $('#billing_email_2_field').length > 0) {
							if (billing_email === '' || billing_email_2 === '') {
								return;
							}

							if (billing_email_2 !== billing_email) {
								$('#billing_email_2_field').addClass('woocommerce-invalid woocommerce-invalid-email woocommerce-invalid-required-field');
							} else {
								$('#billing_email_2_field').removeClass('woocommerce-invalid woocommerce-invalid-email woocommerce-invalid-required-field');
							}
						}
					}
				});
			})(jQuery);
		</script>
		<?php
	}
}

new Create_Confirm_Email_Field();