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<?php declare(strict_types=1); |
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/** |
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* This file is part of the ngutech/bitcoin-interop project. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace NGUtech\Bitcoin\ValueObject; |
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use Daikon\Interop\Assertion; |
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use Daikon\Interop\MakeEmptyInterface; |
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use Daikon\ValueObject\ValueObjectInterface; |
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final class Hash implements MakeEmptyInterface, ValueObjectInterface |
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{ |
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private string $hash; |
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public static function sum(string $value): self |
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{ |
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return new self(hash('sha256', $value)); |
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} |
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/** @param null|string $value */ |
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public static function fromNative($value): self |
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{ |
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Assertion::nullOrRegex($value, '/^$|[a-f0-9]{64}/i', 'Must be 64 hex characters.'); |
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return empty($value) ? new self : new self($value); |
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} |
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public static function makeEmpty(): self |
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{ |
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return new self; |
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} |
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public function isEmpty(): bool |
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{ |
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return empty($this->hash); |
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} |
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/** @param self $comparator */ |
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public function equals($comparator): bool |
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{ |
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Assertion::isInstanceOf($comparator, self::class); |
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return $this->toNative() === $comparator->toNative(); |
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} |
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public function toBinary(): string |
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{ |
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return hex2bin($this->hash); |
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} |
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public function toNative(): string |
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{ |
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return $this->hash; |
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} |
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public function __toString(): string |
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{ |
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return (string)$this->hash; |
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} |
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private function __construct(string $hash = '') |
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{ |
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$this->hash = $hash; |
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} |
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} |
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NGUtech /
bitcoin-interop
