private async Task GenerateIssueAllowedCoins() { foreach (var asset in await _assetRepostory.Values()) { if (OpenAssetsHelper.IsBitcoin(asset.Id) || OpenAssetsHelper.IsLkk(asset.Id) || !asset.IssueAllowed) { continue; } try { var setting = await GetAssetSetting(asset.Id); if (setting.HotWallet != setting.ChangeWallet) { continue; } var hotWallet = OpenAssetsHelper.ParseAddress(setting.HotWallet); var assetId = new BitcoinAssetId(asset.BlockChainAssetId).AssetId; var coins = await _bitcoinOutputsService.GetColoredUnspentOutputs(setting.HotWallet, assetId); var outputSize = new AssetMoney(assetId, setting.OutputSize, asset.MultiplierPower); await _logger.WriteInfoAsync("GenerateOffchainOutputsFunction", "GenerateIssueAllowedCoins", "AssetId " + asset.Id, "Start process"); var existingCoinsCount = coins.Count(o => o.Amount <= outputSize && o.Amount * 2 > outputSize); if (existingCoinsCount > setting.MinOutputsCount) { continue; } var generateCnt = setting.MaxOutputsCount - existingCoinsCount; var generated = 0; while (generated < generateCnt) { var outputsCount = Math.Min(setting.MaxOutputsCountInTx, generateCnt - generated); var context = _transactionBuildContextFactory.Create(_connectionParams.Network); await context.Build(async() => { var builder = new TransactionBuilder(); var queue = _pregeneratedOutputsQueueFactory.Create(asset.BlockChainAssetId); var coin = await queue.DequeueCoin(); try { var issueCoin = new IssuanceCoin(coin) { DefinitionUrl = new Uri(asset.DefinitionUrl) }; builder.AddCoins(issueCoin); for (var i = 0; i < outputsCount; i++) { builder.IssueAsset(hotWallet, outputSize); } context.IssueAsset(assetId); await _transactionBuildHelper.AddFee(builder, context); var tr = builder.BuildTransaction(true); await SignAndBroadcastTransaction(tr, context); return(""); } catch (Exception) { await queue.EnqueueOutputs(coin); throw; } }); generated += outputsCount; } } catch (Exception ex) { await _logger.WriteWarningAsync("GenerateOffchainOutputsFunction", "GenerateIssueAllowedCoins", "AssetId " + asset.Id, ex); } finally { await _logger.WriteInfoAsync("GenerateOffchainOutputsFunction", "GenerateIssueAllowedCoins", "AssetId " + asset.Id, "End process"); } } }