private async Task <IResponseIndexingMessage> CreateResponseForSideChain(Block block, int remoteSideChainId,
long parentChainHeightOfCreation)
{
var responseParentChainBlockData = new ResponseParentChainBlockData
{
Success = true,
BlockData = new ParentChainBlockData
{
Root = new ParentChainBlockRootInfo
{
ParentChainHeight = block.Height,
ParentChainId = block.Header.ChainId
}
}
};
responseParentChainBlockData = FillExtraDataInResponse(responseParentChainBlockData, block.Header,
block.Height >= parentChainHeightOfCreation);
if (responseParentChainBlockData.BlockData.Root.CrossChainExtraData == null)
{
return(responseParentChainBlockData);
}
var indexedSideChainBlockDataResult = await GetIndexedSideChainBlockInfoResult(block);
var enumerableMerklePath = GetEnumerableMerklePath(indexedSideChainBlockDataResult, remoteSideChainId);
foreach (var(sideChainHeight, merklePath) in enumerableMerklePath)
{
responseParentChainBlockData.BlockData.IndexedMerklePath.Add(sideChainHeight, merklePath);
}
return(responseParentChainBlockData);
}
private ResponseParentChainBlockData FillExtraDataInResponse(ResponseParentChainBlockData responseParentChainBlockData,
BlockHeader blockHeader, bool needOtherExtraData)
{
var transactionStatusMerkleRoot =
_crossChainExtraDataExtractor.ExtractTransactionStatusMerkleTreeRoot(blockHeader);
responseParentChainBlockData.BlockData.Root.TransactionStatusMerkleRoot = transactionStatusMerkleRoot;
var crossChainExtra = _crossChainExtraDataExtractor.ExtractCrossChainData(blockHeader);
responseParentChainBlockData.BlockData.Root.CrossChainExtraData = crossChainExtra;
if (needOtherExtraData)
{
// only pack extra information after side chain creation
// but the problem of communication data size still exists
responseParentChainBlockData.BlockData.ExtraData.Add(_crossChainExtraDataExtractor.ExtractCommonExtraDataForExchange(blockHeader));
}
return(responseParentChainBlockData);
}
