public async Task <decimal?> ConvertPriceAsync(string assetPairId, decimal price)
{
AssetPair assetPair = await _assetsServiceWithCache.TryGetAssetPairAsync(assetPairId);
if (assetPair.QuotingAssetId == UsdAssetId)
{
return(price);
}
IReadOnlyCollection <CrossRateInstrument> crossInstruments = await GetAllAsync();
CrossRateInstrument crossInstrument = crossInstruments.SingleOrDefault(o => o.AssetPairId == assetPairId);
if (crossInstrument == null)
{
_log.WarningWithDetails("Cross instrument not found", assetPairId);
return(null);
}
Quote quote = await _quoteService
.GetAsync(crossInstrument.QuoteSource, crossInstrument.ExternalAssetPairId);
if (quote == null)
{
_log.WarningWithDetails("No quote for cross instrument", crossInstrument);
return(null);
}
(decimal crossPrice, decimal _) =
Calculator.CalculateCrossMidPrice(price, quote, crossInstrument.IsInverse);
return(crossPrice);
}
public async Task AddAsync(CrossRateInstrument crossInstrument)
{
await _crossRateInstrumentRepository.InsertAsync(crossInstrument);
_cache.Set(crossInstrument);
_log.InfoWithDetails("Cross-rate instrument was added", crossInstrument);
}
public async Task UpdateAsync(CrossRateInstrument instrument)
{
await _storage.MergeAsync(GetPartitionKey(), GetRowKey(instrument.AssetPairId), entity =>
{
Mapper.Map(instrument, entity);
return(entity);
});
}
public async Task InsertAsync(CrossRateInstrument instrument)
{
var entity = new CrossRateInstrumentEntity(GetPartitionKey(), GetRowKey(instrument.AssetPairId));
Mapper.Map(instrument, entity);
await _storage.InsertThrowConflictAsync(entity);
}
public async Task DeleteAsync(string assetPairId)
{
CrossRateInstrument crossInstrument = await GetByAssetPairIdAsync(assetPairId);
await _crossRateInstrumentRepository.DeleteAsync(assetPairId);
_cache.Remove(assetPairId);
_log.InfoWithDetails("Cross-rate instrument was deleted", crossInstrument);
}
public async Task UpdateAsync(CrossRateInstrument crossInstrument)
{
CrossRateInstrument currentCrossInstrument = await GetByAssetPairIdAsync(crossInstrument.AssetPairId);
currentCrossInstrument.Update(crossInstrument);
await _crossRateInstrumentRepository.UpdateAsync(currentCrossInstrument);
_cache.Set(currentCrossInstrument);
_log.InfoWithDetails("Cross-rate instrument was updated", currentCrossInstrument);
}
public async Task <CrossRateInstrument> GetByAssetPairIdAsync(string assetPairId)
{
IReadOnlyCollection <CrossRateInstrument> crossInstruments = await GetAllAsync();
CrossRateInstrument crossInstrument = crossInstruments.SingleOrDefault(o => o.AssetPairId == assetPairId);
if (crossInstrument == null)
{
throw new EntityNotFoundException();
}
return(crossInstrument);
}
public async Task <CrossRateInstrumentModel> GetByAssetPairIdAsync(string assetPairId)
{
try
{
CrossRateInstrument crossInstrument =
await _crossRateInstrumentService.GetByAssetPairIdAsync(assetPairId);
return(Mapper.Map <CrossRateInstrumentModel>(crossInstrument));
}
catch (EntityNotFoundException)
{
throw new ValidationApiException(HttpStatusCode.NotFound, "Cross-rate instrument does not exist.");
}
}
public void Update(CrossRateInstrument crossInstrument)
{
QuoteSource = crossInstrument.QuoteSource;
ExternalAssetPairId = crossInstrument.ExternalAssetPairId;
IsInverse = crossInstrument.IsInverse;
}