public static AssetCoinholdersViewModel Create(AssetViewModel asset,
IBalanceSummary balanceSummary,
int?atBlockHeight,
IDictionary <string, double> addressChanges,
IEnumerable <IBalanceBlock> blocksWithChanges,
IBlockHeader currentBlock,
IBlockHeader atBlockInfo)
{
var total = balanceSummary.AddressSummaries.Sum(p => p.Balance);
var addressSummaries = balanceSummary.AddressSummaries
.Select(
p =>
BalanceAddressSummary.Create(p, total, asset.Divisibility,
addressChanges.ContainsKey(p.Address) ? addressChanges[p.Address] : 0))
.Where(p => p.Balance != 0 || p.ChangeAtBlock != 0)
.OrderByDescending(p => p.Balance)
.ToList();
return(new AssetCoinholdersViewModel
{
Asset = asset,
AddressSummaries = addressSummaries,
Total = BitcoinUtils.CalculateColoredAssetQuantity(total, asset.Divisibility),
Pagination = BlockPagination.Create(blocksWithChanges.Select(p => p.Height), atBlockHeight ?? currentBlock?.Height, currentBlock),
CoinholdersCount = addressSummaries.Count,
AtBlockDateTime = (atBlockInfo ?? currentBlock)?.Time.ToUniversalTime()
});
}
protected async Task CheckHeaderAppendable(IBlockHeader header)
{
var blockHeader = (BlockHeader)header;
#region genesis
// TODO: more strict genesis
if (blockHeader.Index == GlobalConfig.GenesisBlockHeight)
{
var curHash = await _chainManager.GetCurrentBlockHashAsync(_chainId);
if (curHash.IsNull())
{
await _chainManager.AddChainAsync(_chainId, header.GetHash());
}
return;
}
#endregion genesis
var prevHeader = await GetHeaderByHashAsync(blockHeader.PreviousBlockHash);
if (prevHeader == null)
{
throw new InvalidOperationException($"Parent is unknown for {blockHeader}.");
}
var expected = ((BlockHeader)prevHeader).Index + 1;
var actual = blockHeader.Index;
if (actual != expected)
{
throw new InvalidOperationException($"Incorrect index. Expected: {expected}, actual: {actual}");
}
}
public static Dictionary MarshalBlockHeader(this IBlockHeader header) =>
MarshalBlockHeader(
MarshalPreEvaluationBlockHeader(header),
header.StateRootHash,
header.Signature,
header.Hash
);
public Mock <IBlock> MockBlock(IBlockHeader header, IBlockBody body)
{
Mock <IBlock> mock = new Mock <IBlock>();
mock.Setup(b => b.Header).Returns((BlockHeader)header);
mock.Setup(b => b.Body).Returns((BlockBody)body);
return(mock);
}
protected async Task AddHeaderAsync(IBlockHeader header)
{
await CheckHeaderAppendable(header);
await _blockManager.AddBlockHeaderAsync((BlockHeader)header);
await MaybeSwitchBranch(header);
MessageHub.Instance.Publish((BlockHeader)header);
}
protected async Task MaybeSwitchBranch(IBlockHeader header)
{
var blockHeader = (BlockHeader)header;
if (blockHeader.Index <= GlobalConfig.GenesisBlockHeight)
{
var hash = GetHeightHash(blockHeader.Index).OfType(HashType.CanonicalHash);
// hash.Height = blockHeader.Index;
await _dataStore.InsertAsync(hash, header.GetHash());
await _chainManager.UpdateCurrentBlockHashAsync(_chainId, header.GetHash());
return;
}
var currentBlockHash = await GetCurrentBlockHashAsync();
var currentHeader = await GetHeaderByHashAsync(currentBlockHash);
if (currentHeader.GetHash().Equals(((BlockHeader)header).PreviousBlockHash) ||
((BlockHeader)header).PreviousBlockHash.Equals(Hash.Genesis))
{
var hash = GetHeightHash(((BlockHeader)header).Index).OfType(HashType.CanonicalHash);
// hash.Height = ((BlockHeader) header).Index;
await _dataStore.InsertAsync(hash, header.GetHash());
await _chainManager.UpdateCurrentBlockHashAsync(_chainId, header.GetHash());
return;
}
if (((BlockHeader)header).Index > ((BlockHeader)currentHeader).Index)
{
await _chainManager.UpdateCurrentBlockHashAsync(_chainId, header.GetHash());
var branches = await GetComparedBranchesAsync(currentHeader, header);
if (branches.Item2.Count > 0)
{
foreach (var newBranchHeader in branches.Item2)
{
if (newBranchHeader == null)
{
break;
}
var hash = GetHeightHash(((BlockHeader)newBranchHeader).Index).OfType(HashType.CanonicalHash);
// hash.Height = ((BlockHeader) newBranchHeader).Index;
await _dataStore.InsertAsync(hash, newBranchHeader.GetHash());
}
}
}
}
/// <summary>
/// Creates a <see cref="Block{T}"/> instance by combining a block <paramref name="header"/>
/// and <paramref name="transactions"/>.
/// </summary>
/// <param name="header">The block header.</param>
/// <param name="transactions">The transactions to include.</param>
/// <exception cref="InvalidBlockProtocolVersionException">Thrown when
/// the <paramref name="header"/>'s <see cref="IBlockMetadata.ProtocolVersion"/>
/// is less than 0, or greater than <see cref="BlockMetadata.CurrentProtocolVersion"/>,
/// the latest known protocol version.</exception>
/// <exception cref="InvalidBlockIndexException">Thrown when the <paramref name="header"/>
/// has a negative <see cref="IBlockMetadata.Index"/>.</exception>
/// <exception cref="InvalidBlockDifficultyException">Thrown when
/// the <paramref name="header"/>'s <see cref="IBlockMetadata.Difficulty"/> is negative.
/// </exception>
/// <exception cref="InvalidBlockTotalDifficultyException">Thrown when
/// the <paramref name="header"/>'s <see cref="IBlockMetadata.TotalDifficulty"/> is less
/// than its <see cref="IBlockMetadata.Difficulty"/>.</exception>
/// <exception cref="InvalidTxSignatureException">Thrown when any tx signature is invalid or
/// not signed by its signer.</exception>
/// <exception cref="InvalidTxPublicKeyException">Thrown when any tx signer is not derived
/// from its its public key.</exception>
/// <exception cref="InvalidTxNonceException">Thrown when the same tx nonce is used by
/// a signer twice or more, or a tx nonce is used without its previous nonce by a signer.
/// Note that this validates only a block's intrinsic integrity between its transactions,
/// but does not guarantee integrity between blocks. Such validation needs to be conducted
/// by <see cref="Blockchain.BlockChain{T}"/>.</exception>
/// <exception cref="InvalidTxGenesisHashException">Thrown when transactions to set have
/// inconsistent genesis hashes.</exception>
/// <exception cref="InvalidBlockTxHashException">Thrown when the given block
/// <paramref name="header"/>'s <see cref="IBlockMetadata.TxHash"/> is not consistent with
/// its <paramref name="transactions"/>.</exception>
/// <exception cref="InvalidBlockPreEvaluationHashException">Thrown when the given
/// <paramref name="header"/> has an invalid
/// <see cref="IPreEvaluationBlockHeader.PreEvaluationHash"/>.</exception>
/// <exception cref="InvalidBlockNonceException">Thrown when the given
/// <paramref name="header"/>'s <see cref="IPreEvaluationBlockHeader.Nonce"/> does not
/// satisfy the required <see cref="PreEvaluationBlockHeader.Difficulty"/>.</exception>
public Block(IBlockHeader header, IEnumerable <Transaction <T> > transactions)
: this(
new PreEvaluationBlock <T>(
new BlockContent <T>(header, transactions),
header.HashAlgorithm,
header.Nonce,
header.PreEvaluationHash
),
header.StateRootHash,
header.Signature
)
{
}
public static BlockHeaderViewModel Create(IBlockHeader header)
{
if (header != null)
{
return(new BlockHeaderViewModel
{
BlockId = header.Hash,
Height = header.Height
});
}
return(null);
}
protected async Task <Tuple <List <IBlockHeader>, List <IBlockHeader> > > GetComparedBranchesAsync(
IBlockHeader oldHead,
IBlockHeader newHead)
{
var tempOldHead = (BlockHeader)oldHead;
var tempNewHead = (BlockHeader)newHead;
var oldBranch = new List <IBlockHeader>();
var newBranch = new List <IBlockHeader>();
while (((BlockHeader)oldHead).Index > ((BlockHeader)newHead).Index)
{
oldBranch.Add(tempOldHead);
tempOldHead = (BlockHeader) await GetHeaderByHashAsync(tempOldHead.PreviousBlockHash);
}
while (((BlockHeader)newHead).Index > ((BlockHeader)oldHead).Index)
{
newBranch.Add(tempNewHead);
if (tempNewHead == null)
{
break;
}
tempNewHead = (BlockHeader) await GetHeaderByHashAsync(tempNewHead.PreviousBlockHash);
}
while (tempNewHead != null && tempOldHead.PreviousBlockHash != tempNewHead.PreviousBlockHash)
{
oldBranch.Add(tempOldHead);
newBranch.Add(tempNewHead);
tempOldHead = (BlockHeader) await GetHeaderByHashAsync(tempOldHead.PreviousBlockHash);
tempNewHead = (BlockHeader) await GetHeaderByHashAsync(tempNewHead.PreviousBlockHash);
}
if (tempOldHead != null && tempNewHead != null)
{
oldBranch.Add(tempOldHead);
newBranch.Add(tempNewHead);
}
return(Tuple.Create(oldBranch, newBranch));
}
public static BlockViewModel Create(IBlock ninjaBlock,
IBlockHeader lastBlock)
{
return new BlockViewModel
{
Confirmations = ninjaBlock.Confirmations,
Difficulty = ninjaBlock.Difficulty,
Hash = ninjaBlock.Hash,
Height = ninjaBlock.Height,
MerkleRoot = ninjaBlock.MerkleRoot,
Nonce = ninjaBlock.Nonce,
PreviousBlock = ninjaBlock.PreviousBlock,
Time = ninjaBlock.Time,
AllTransactionIdList = new TransactionIdList(ninjaBlock.AllTransactionIds),
ColoredTransactionIdList = new TransactionIdList(ninjaBlock.ColoredTransactionIds),
UncoloredTransactionIdList = new TransactionIdList(ninjaBlock.UncoloredTransactionIds),
TotalTransactions = ninjaBlock.TotalTransactions,
ShowNextBlock = ninjaBlock.Height < lastBlock?.Height,
NextBlockHeight = ninjaBlock.Height + 1
};
}
public static AddressBalanceViewModel Create(IAddressBalance balance,
IReadOnlyDictionary <string, IAssetDefinition> assetDictionary,
IBlockHeader lastBlock,
IBlockHeader atBlock,
IEnumerable <IGroup> offchainGroups,
bool isHub)
{
var onchainColoredBalances =
(balance.ColoredBalances ?? Enumerable.Empty <IColoredBalance>()).Select(p =>
ColoredBalance.Create(p, assetDictionary)).ToList();
var existedOnchainAssetsBalances = onchainColoredBalances.Select(p => p.AssetId).ToDictionary(p => p);
//show balances for offchain assets with 0 onchain balance
var missedOffchainColoredBalances = offchainGroups.Where(p => p.IsColored && !existedOnchainAssetsBalances.ContainsKey(p.AssetId))
.Select(p => p.AssetId)
.Distinct()
.Select(assetId => ColoredBalance.CreateEmpty(assetId, assetDictionary));
return(new AddressBalanceViewModel
{
AddressId = balance.AddressId,
TotalConfirmedTransactions = balance.TotalTransactions,
Balance = balance.BtcBalance,
Assets = onchainColoredBalances.Union(missedOffchainColoredBalances).ToList(),
UnconfirmedBalanceDelta = balance.UnconfirmedBalanceDelta,
AssetDic = AssetDictionary.Create(assetDictionary),
LastBlockHeight = lastBlock.Height,
LastBlockDateTime = lastBlock.Time,
AtBlockHeight = (atBlock ?? lastBlock).Height,
AtBlockDateTime = (atBlock ?? lastBlock).Time,
OffchainGroupsByAsset = OffchainGroupsByAsset.Create(offchainGroups, assetDictionary),
TotalTransactionsCountCalculated = balance.TotalTransactionsCountCalculated,
TotalSpendedTransactions = balance.TotalSpendedTransactions,
TotalSpendedTransactionsCountCalculated = balance.TotalSpendedTransactionsCountCalculated,
TotalReceivedTransactions = balance.TotalReceivedTransactions,
TotalReceivedTransactionsCountCalculated = balance.TotalReceivedTransactionsCountCalculated,
IsOffchainHub = isHub
});
}
public async Task ParseLast()
{
IBlockHeader blockPtr = null;
try
{
_console.Write(nameof(ParseBlocksFunctions), nameof(ParseLast), null, "Started");
blockPtr = await _blockService.GetLastBlockHeaderAsync();
while (blockPtr != null &&
!await _assetDefinitionParsedBlockRepository
.IsBlockExistsAsync(AssetDefinitionParsedBlock.Create(blockPtr.Hash)))
{
_console.Write(nameof(ParseBlocksFunctions),
nameof(ParseLast),
new { blockPtr.Hash, blockPtr.Height }.ToJson(),
$"Add parse block command {blockPtr.Height}");
await _parseBlockCommandProducer.CreateParseBlockCommand(blockPtr.Hash);
blockPtr = await _blockService.GetBlockHeaderAsync((blockPtr.Height - 1).ToString());
}
_console.Write(nameof(ParseBlocksFunctions), nameof(ParseLast), null, "Done");
}
catch (Exception e)
{
await _log.WriteErrorAsync(nameof(ParseBlocksFunctions),
nameof(ParseLast),
new { blockHash = blockPtr?.Hash }.ToJson(),
e);
throw;
}
}
public byte[] Mine(IBlockHeader blockheader)
{
throw new NotImplementedException();
}
public Block(IBlockHeader blockHeader, IBlockBody blockBody)
{
BlockHeader = blockHeader;
BlockBody = blockBody;
}
public Block(IBlockHeader header, List <ITransaction> transactions)
{
this.BlockHeader = header;
this.Transactions = transactions;
}
public GenesisBlock(IBlockHeader blockHeader, IBlockBody blockBody)
{
BlockHeader = blockHeader;
BlockBody = blockBody;
}
//Constructor
public Block(List <string> data, IBlockHeader header)
{
_tree = new MerkleTree();
_header = (Header)header;
}
private void FillHeaderData(IBlockHeader header, Block result)
{
result.Confirmations = header.Confirmations;
result.Height = header.Height;
}
/// <summary>
/// Mine the specified blockheader.
/// </summary>
/// <returns>does not but serilize the block</returns>
/// <param name="blockheader">Blockheader.</param>
public byte[] Mine(IBlockHeader blockheader)
{
// TODO: return a serlized block header
return(null);
}
public static BlockPagination Create(IEnumerable <int> changedAtHeights, int?atBlock, IBlockHeader currentBlock)
{
var ordered = changedAtHeights.OrderBy(p => p).ToList();
var at = atBlock ?? ordered.LastOrDefault();
if (currentBlock != null)
{
ordered.Add(currentBlock.Height);
}
var result = new BlockPagination
{
ChangedAtHeights = ordered.Distinct().ToList(),
AtBlock = at,
ShowCurrentBlock = atBlock != null
};
return(result);
}