/// <summary>
/// Get the parent chain block height indexing the child chain <param name="childHeight"/>.
/// </summary>
/// <param name="chainId"></param>
/// <param name="childHeight"></param>
/// <returns></returns>
public async Task <ulong> GetBoundParentChainHeight(Hash chainId, ulong childHeight)
{
var key = DataPath.CalculatePointerForParentChainHeightByChildChainHeight(chainId, childHeight);
return((await _dataStore.GetAsync <UInt64Value>(key))?.Value ?? 0);
}
/// <summary>
/// Bind child chain height with parent height who indexed it.
/// </summary>
/// <param name="chainId"></param>
/// <param name="childHeight"></param>
/// <param name="parentHeight"></param>
/// <returns></returns>
public async Task BindParentChainHeight(Hash chainId, ulong childHeight, ulong parentHeight)
{
var key = DataPath.CalculatePointerForParentChainHeightByChildChainHeight(chainId, childHeight);
await _dataStore.InsertAsync(key, new UInt64Value { Value = parentHeight });
}
