/// <summary>
/// Add new item to blockchain
/// Block will be created and be mined
/// </summary>
/// <param name="blockChain">Instance of blockchain class</param>
/// <param name="data">Data of block</param>
/// <param name="target">Target of block, will be saved as bits in blockheader</param>
/// <param name="token">CancellationToken to stop mining. Use (CancellationTokenSource).Token</param>
public static async Task Add <T>(this BlockChain <T> blockChain, T data, Target target = null, CancellationToken token = new CancellationToken())
where T : IBlockData, new()
{
var prevBlock = blockChain.First();
target ??= prevBlock.GetBlockHeader().GetTarget();
var block = Block <T> .Create(prevBlock.Hash(blockChain.GetHashingAlgorithm()), data, target, blockChain.GetHashingAlgorithm());
block = await block.Mine(token);
if (block != null)
{
blockChain.Add(block);
}
}
private static bool _Verify <T>(BlockChain <T> blockChain) where T : IBlockData, new()
{
var sha256 = blockChain.GetHashingAlgorithm();
var block = blockChain.First();
foreach (var prevBlock in blockChain.Skip(1))
{
if (!block.IsValid(prevBlock.Hash(sha256), sha256))
{
return(false);
}
block = prevBlock;
}
return(true);
}
