private IList <Repository.Dto.BlockDto> GetLatest()
{
var block = repository.TryGetLastBlock();
if (block == null)
{
throw new System.ApplicationException("No blocks");
}
return(new List <Repository.Dto.BlockDto>
{
block
});
}
private Tuple <bool, IList <string> > TryUploadBlock(int index,
string minedBy,
string data,
string previousHash,
int nonce,
string hash)
{
var lastBlock = _repository.TryGetLastBlock();
if (lastBlock == null)
{
throw new ApplicationException("No blocks in blockchain");
}
Types.Block block = new Types.Block(
index,
minedBy,
data,
previousHash,
nonce);
var blockWithHash = new Types.BlockWithHash(block, hash);
var isValidBlock = Miner.isValidBlock(blockWithHash, DtoHelpers.DtoToBlock(lastBlock));
if (isValidBlock.IsInvalid)
{
var invalid = isValidBlock as Types.IsValidBlock.Invalid;
var errors = invalid.Item.ToList();
return(Tuple.Create <bool, IList <string> >(false, errors));
}
_repository.Save(DtoHelpers.BlockToDto(blockWithHash));
return(Tuple.Create <bool, IList <string> >(true, new List <string>()));
}