<?php
/**
 * Created by PhpStorm.
 * User: whwyy
 * Date: 2018/4/3 0003
 * Time: 15:46
 */

declare(strict_types=1);


namespace validator;


use ReflectionException;

class EmptyValidator extends BaseValidator
{

    /** @var string [不能为空] */
    const CAN_NOT_EMPTY = 'not empty';

    /** @var string [可为空, 不能为null] */
    const CAN_NOT_NULL = 'not null';

    public string $method;

    /**
     * @return bool
     *
     * 检查参数是否为NULL
     * @throws ReflectionException
     */
    public function trigger(): bool
    {
        return $this->_validator($this->field, function ($field, $params, $method) {
            $value = $params[$field] ?? null;
            if ($value === null) {
                return $this->addError($field, 'The :attribute can not null.');
            }
            if (empty($value)) {
                return $this->addError($field, 'The :attribute can not empty.');
            }
            return true;
        }, $this->params, strtolower($this->method));
    }
}