<?php

namespace WPML\ST\DB\Mappers;

use function WPML\FP\curryN;

class StringTranslations {
	/**
	 * @param  \wpdb  $wpdb
	 * @param  int    $stringId
	 * @param  string $language
	 *
	 * @return callable|bool
	 */
	public static function hasTranslation( $wpdb = null, $stringId = null, $language = null ) {
		$has = function ( \wpdb $wpdb, $stringId, $language ) {
			$sql = "SELECT COUNT(id) FROM {$wpdb->prefix}icl_string_translations WHERE string_id = %d AND language = %s";

			return $wpdb->get_var( $wpdb->prepare( $sql, $stringId, $language ) ) > 0;
		};

		return call_user_func_array( curryN( 3, $has ), func_get_args() );
	}

}