<?php
    namespace App\Helper;

    use Illuminate\Validation\Rule;

    class DatabaseHelper {
        public static function str2SearchPatern($str) {
            return '%'.preg_replace('!\s+!', '%', trim($str ?? '')).'%';
        }

        public static function trimNull($str) {
            if(empty($str)) return null;
            $str = trim($str);
            return $str ? $str : null;
        }
        public static function trimUpperNull($str) {
            $str = self::trimNull($str);
            return $str ? strtoupper($str) : null;
        }

        public static function getOrderBysValidations($key = 'orderBys') {
            return [
                $key => 'nullable|array',
                "$key.*"  => ['nullable', 'string', Rule::in(['asc', 'desc'])],
            ];
        }
        public static function getSearchValidation() { return 'nullable|string'; }
    }
?>