public async Task <BlockHeaderData> GetHeader(uint256 headerHash, uint?heightHint = null, CancellationToken ct = default)
{
if (_headerCache.TryGetValue(headerHash, out var headerData))
{
return(headerData);
}
if (heightHint != null)
{
var header = await _client.GetBlockHeaderAsync(headerHash);
headerData = new BlockHeaderData(heightHint.Value, header);
}
else
{
var blockInfo = await _client.GetBlockAsync(headerHash, GetBlockVerbosity.WithOnlyTxId);
headerData = new BlockHeaderData((uint)blockInfo.Height, blockInfo.Header);
}
_headerCache.TryAdd(headerHash, headerData);
return(headerData);
}
internal ForkStep(ForkStepKind kind, BlockHeaderData header)
{
Kind = kind;
HeaderData = header ?? throw new ArgumentNullException(nameof(header));
}
