<?php

declare(strict_types=1);

namespace PHPJava\Kernel\Types;

class Char_ extends Type implements PrimitiveValueInterface

{

const DEFAULT_VALUE = 0;

protected $nameInJava = 'char';

protected $nameInPHP = 'string';

const MIN = 0;

const MAX = 65535;

public static function isValid($value): bool

{

if (!is_scalar($value)) {

return false;

}

if (ctype_alpha($value) && strlen((string) $value) === 1) {

$value = ord($value);

}

if (!ctype_digit((string) abs($value))) {

return false;

}

return $value >= static::MIN && $value <= static::MAX;

}

protected static function filter($value)

{

if (ctype_alpha($value) && strlen((string) $value) === 1) {

return ord($value);

}

return $value;

}

public function __toString(): string

{

return json_decode(sprintf('"\\u%04X"', $this->value));

}

}