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<?php declare(strict_types=1); |
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/** |
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* This file is part of the ngutech/lnd-adapter 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\Lnd\Service; |
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use Daikon\Interop\Assertion; |
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use Daikon\Money\Exception\PaymentServiceFailed; |
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use Invoicesrpc\AddHoldInvoiceRequest; |
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use Invoicesrpc\AddHoldInvoiceResp; |
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use Invoicesrpc\CancelInvoiceMsg; |
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use Invoicesrpc\CancelInvoiceResp; |
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use Invoicesrpc\SettleInvoiceMsg; |
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use Invoicesrpc\SettleInvoiceResp; |
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use NGUtech\Bitcoin\ValueObject\Hash; |
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use NGUtech\Lightning\Entity\LightningInvoice; |
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use NGUtech\Lightning\Service\LightningHoldServiceInterface; |
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use NGUtech\Lnd\Connector\LndGrpcClient; |
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final class LndHoldService extends LndService implements LightningHoldServiceInterface |
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{ |
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public function request(LightningInvoice $invoice): LightningInvoice |
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{ |
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Assertion::true($this->canRequest($invoice->getAmount()), 'Lnd hold service cannot request given amount.'); |
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$expiry = $invoice->getExpiry()->toNative(); |
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Assertion::between($expiry, 60, 31536000, 'Invoice expiry is not acceptable.'); |
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$preimageHash = Hash::sum($invoice->getPreimage()->toBinary()); |
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/** @var LndGrpcClient $client */ |
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$client = $this->connector->getConnection(); |
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/** @var AddHoldInvoiceResp $response */ |
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list($response, $status) = $client->invoicesrpc->AddHoldInvoice(new AddHoldInvoiceRequest([ |
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'hash' => $preimageHash->toBinary(), |
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'memo' => (string)$invoice->getLabel(), |
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'value_msat' => $invoice->getAmount()->getAmount(), |
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'expiry' => $expiry = min($invoice->getExpiry()->toNative(), 31536000), |
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'cltv_expiry' => $invoice->getCltvExpiry()->toNative() |
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]))->wait(); |
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if ($status->code !== 0) { |
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$this->logger->error($status->details); |
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throw new PaymentServiceFailed($status->details); |
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} |
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return $invoice->withValues([ |
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'preimageHash' => $preimageHash, |
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'request' => $response->getPaymentRequest(), |
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'expiry' => $expiry, |
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'blockHeight' => $this->getInfo()['blockHeight'] |
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]); |
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} |
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public function settle(LightningInvoice $invoice): bool |
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{ |
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/** @var LndGrpcClient $client */ |
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$client = $this->connector->getConnection(); |
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/** @var SettleInvoiceResp $response */ |
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list($response, $status) = $client->invoicesrpc->SettleInvoice(new SettleInvoiceMsg([ |
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'preimage' => $invoice->getPreimage()->toBinary() |
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]))->wait(); |
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return $status->code === 0; |
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} |
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public function cancel(LightningInvoice $invoice): bool |
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{ |
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/** @var LndGrpcClient $client */ |
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$client = $this->connector->getConnection(); |
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/** @var CancelInvoiceResp $response */ |
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list($response, $status) = $client->invoicesrpc->CancelInvoice(new CancelInvoiceMsg([ |
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'payment_hash' => $invoice->getPreimageHash()->toBinary() |
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]))->wait(); |
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return $status->code === 0; |
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} |
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} |
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NGUtech /
lnd-adapter
