bp_attachments_get_attachment( string $data = 'url', array $args = array() )

function bp_attachments_get_attachment( $data = 'url', $args = array() ) {
	// Default value.
	$attachment_data = false;

	$r = bp_parse_args( $args, array(
		'object_dir' => 'members',
		'item_id'    => bp_loggedin_user_id(),
		'type'       => 'cover-image',
		'file'       => '',
	), 'attachments_get_attachment_src' );

	/**
	 * Filters whether or not to handle fetching a BuddyPress image attachment.
	 *
	 * If you want to override this function, make sure you return false.
	 *
	 * @since BuddyPress 2.5.1
	 *
	 * @param null|string $value If null is returned, proceed with default behaviour. Otherwise, value returned verbatim.
	 * @param array $r {
	 *     @type string $object_dir The object dir (eg: members/groups). Defaults to members.
	 *     @type int    $item_id    The object id (eg: a user or a group id). Defaults to current user.
	 *     @type string $type       The type of the attachment which is also the subdir where files are saved.
	 *                              Defaults to 'cover-image'
	 *     @type string $file       The name of the file.
	 * }
	 */
	$pre_filter = apply_filters( 'bp_attachments_pre_get_attachment', null, $r );
	if ( $pre_filter !== null ) {
		return $pre_filter;
	}

	// Get BuddyPress Attachments Uploads Dir datas.
	$bp_attachments_uploads_dir = bp_attachments_uploads_dir_get();

	// The BP Attachments Uploads Dir is not set, stop.
	if ( ! $bp_attachments_uploads_dir ) {
		return $attachment_data;
	}

	$type_subdir = $r['object_dir'] . '/' . $r['item_id'] . '/' . $r['type'];
	$type_dir    = trailingslashit( $bp_attachments_uploads_dir['basedir'] ) . $type_subdir;

	if ( 1 === validate_file( $type_dir ) || ! is_dir( $type_dir ) ) {
		return $attachment_data;
	}

	if ( ! empty( $r['file'] ) ) {
		if ( ! file_exists( trailingslashit( $type_dir ) . $r['file'] ) ) {
			return $attachment_data;
		}

		if ( 'url' === $data ) {
			$attachment_data = trailingslashit( $bp_attachments_uploads_dir['baseurl'] ) . $type_subdir . '/' . $r['file'];
		} else {
			$attachment_data = trailingslashit( $type_dir ) . $r['file'];
		}

	} else {
		$file = false;

		// Open the directory and get the first file.
		if ( $att_dir = opendir( $type_dir ) ) {

			while ( false !== ( $attachment_file = readdir( $att_dir ) ) ) {
				// Look for the first file having the type in its name.
				if ( false !== strpos( $attachment_file, $r['type'] ) && empty( $file ) ) {
					$file = $attachment_file;
					break;
				}
			}
		}

		if ( empty( $file ) ) {
			return $attachment_data;
		}

		if ( 'url' === $data ) {
			$attachment_data = trailingslashit( $bp_attachments_uploads_dir['baseurl'] ) . $type_subdir . '/' . $file;
		} else {
			$attachment_data = trailingslashit( $type_dir ) . $file;
		}
	}

	return $attachment_data;
}