WordPress to Buffer Pro: WPML: Prevent Posts sending to Buffer by Language

wp-to-buffer-pro-wpml.php

<?php
/**
 * Plugin Name: WP to Buffer Pro: WPML
 * Plugin URI: https://www.wpzinc.com
 * Version: 0.0.1
 * Author: WP Zinc
 * Author URI: https://www.wpzinc.com
 * Description: Prevent Posts, Pages or Custom Posts sending to Buffer when they match specific WPML languages.
 */

/**
 * Determine the language of the Post in WPML, to decide whether to send a status to Buffer
 *
 * @since   0.0.1
 *
 * @param   array       $args                       API standardised arguments.
 * @param   WP_Post     $post                       WordPress Post.
 * @param   string      $profile_id                 Social Media Profile ID.
 * @param   string      $service                    Social Media Service.
 * @param   array       $status                     Parsed Status Message Settings.
 * @param   string      $action                     Action (publish|update|repost|bulk_publish).
 */
add_filter( 'wp_to_buffer_pro_publish_build_args', function( $args, $post, $profile_id, $service, $status, $action ) {

	// Define the language codes for Posts you do NOT want to send to Buffer.
	// In this example, our site is in English, with French and Spanish configured in WPML as an additional language.
	// We do NOT want to send Posts to Buffer that are in French or Spanish.
	$excluded_language_codes = array(
		'fr',
		'es',
	);
	// Stop editing.

	global $sitepress;

	// Bail if WPML isn't active.
	if ( ! function_exists( 'wpml_get_language_information' ) ) {
		return $args;
	}
	if ( is_null( $sitepress ) ) {
		return $args;
	}

	// Get the Site's Current Language.
	$current_language = $sitepress->get_current_language();

	// Get the Post's Language.
	$post_language = wpml_get_language_information( null, $post->ID );

	// Bail if we couldn't fetch language information.
	if ( is_wp_error( $post_language ) ) {
		return $args;
	}

	// Bail if WPML hasn't been enabled on the Post Type (language code will be null).
	if ( is_null( $post_language['language_code'] ) ) {
		return $args;
	}

	// If the Post is in a language that we do not want to send to Buffer, return an error now.
	if ( in_array( $post_language['language_code'], $excluded_language_codes, true ) ) {
		return new WP_Error(
			'wpml_excluded_language',
			sprintf(
				'WP to Buffer Pro: WPML has been configured to exclude %s from being sent to Buffer.',
				$post_language['language_code']
			)
		);
	}

	// Permit the Post to be sent to Buffer.
	return $args;

}, 10, 6 );