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<?php |
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declare(strict_types=1); |
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namespace Gambling\Tech\Game; |
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use Gambling\Tech\Random; |
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use Gambling\Tech\Exception\GamblingTechException; |
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use Gambling\Tech\Exception\InvalidArgumentException; |
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class SeedPairGenerator |
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{ |
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private StoreInterface $store; |
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public function __construct(StoreInterface $store) |
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{ |
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$this->store = $store; |
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} |
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/** |
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* Generation new random seed pair |
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* |
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* @param string|null $clientSeed |
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* @param SeedPair|null $seedPair |
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* @return SeedPair |
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* @throws GamblingTechException |
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* @throws InvalidArgumentException |
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*/ |
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public function generate(?string $clientSeed = null, ?SeedPair $seedPair = null): SeedPair |
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{ |
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$serverSeed = $seedPair !== null ? $seedPair->getNextServerSeed() : hash('sha256', Random::getString(32)); |
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$nextServerSeed = hash('sha256', Random::getString(32)); |
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if ($clientSeed === null) { |
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$clientSeed = $seedPair ? |
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$seedPair->getClientSeed() : |
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Random::getString(16, '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'); |
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} |
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$nonce = 1; // each new generation resets nonce |
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return $this->createSeedPair($serverSeed, $nextServerSeed, $clientSeed, $nonce); |
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} |
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/** |
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* Get current seed pair or generation new random seed pair |
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* |
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* @param object $condition |
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* @return SeedPair |
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* @throws GamblingTechException |
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* @throws InvalidArgumentException |
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*/ |
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public function getCurrentSeedPairOrGenerate(object $condition): SeedPair |
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{ |
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if ($seed = $this->getCurrentSeedPair($condition)) { |
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return $seed; |
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} |
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return $this->generate(); |
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} |
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/** |
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* Get the current active seed by an arbitrary condition |
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* |
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* @param object $condition |
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* @return SeedPair|null |
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*/ |
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public function getCurrentSeedPair(object $condition): ?SeedPair |
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{ |
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return $this->store->getCurrentSeedPair($condition); |
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} |
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/** |
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* @param string $serverSeed |
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* @param string $nextServerSeed |
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* @param string $clientSeed |
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* @param int $nonce |
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* @return SeedPair |
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*/ |
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protected function createSeedPair( |
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string $serverSeed, |
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string $nextServerSeed, |
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string $clientSeed, |
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int $nonce |
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): SeedPair { |
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return new SeedPair($serverSeed, $nextServerSeed, $clientSeed, $nonce); |
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} |
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} |
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nepster-web /
gambling-tech
