//Check whether output has been spent or contained in another transaction, true = spent, false = unspent
private bool checkOutputSpent(string currentTxHash, string outputTxHash, int outputIndex)
{
var outputDac = new OutputDac();
var inputDac = new InputDac();
var txDac = new TransactionDac();
var blockDac = new BlockDac();
var outputEntity = outputDac.SelectByHashAndIndex(outputTxHash, outputIndex);
var inputEntity = inputDac.SelectByOutputHash(outputTxHash, outputIndex);
if (inputEntity != null && inputEntity.TransactionHash != currentTxHash)
{
var tx = txDac.SelectByHash(inputEntity.TransactionHash);
if (tx != null)
{
var blockEntity = blockDac.SelectByHash(tx.BlockHash);
if (blockEntity != null && blockEntity.IsVerified)
{
return(true);
}
}
}
return(false);
}
/// <summary>
/// 获取区块总的奖励
/// </summary>
/// <param name="blockHash"></param>
/// <returns></returns>
public long GetBlockReward(string blockHash)
{
//总的奖励分为两部分，一部分挖矿所得，一部分区块中交易手续费
BlockDac dac = new BlockDac();
Block block = dac.SelectByHash(blockHash);
long miningAward = block.TotalAmount;
long totalfee = block.TotalFee;
return(miningAward + totalfee);
}
private bool exists(string blockHash)
{
var blockDac = new BlockDac();
if (blockDac.SelectByHash(blockHash) != null)
{
return(true);
}
return(false);
}
public BlockMsg GetBlockMsgByHash(string hash)
{
var blockDac = new BlockDac();
var txDac = new TransactionDac();
BlockMsg block = null;
var entity = blockDac.SelectByHash(hash);
if (entity != null)
{
block = this.convertEntityToBlockMsg(entity);
}
return(block);
}
public void GetBalanceInDB(out long confirmedBalance, out long unconfirmedBalance)
{
//return new OutputDac().SumSelfUnspentOutputs();
confirmedBalance = 0;
unconfirmedBalance = 0;
var outputDac = new OutputDac();
var txDac = new TransactionDac();
var blockDac = new BlockDac();
var lastHeight = -1L;
var lastBlock = blockDac.SelectLast();
if (lastBlock != null)
{
lastHeight = lastBlock.Height;
}
var outputs = outputDac.SelectAllUnspentOutputs();
foreach (var output in outputs)
{
var tx = txDac.SelectByHash(output.TransactionHash);
if (tx != null)
{
var block = blockDac.SelectByHash(tx.BlockHash);
if (block != null)
{
if (tx.TotalInput == 0)
{
//coinbase
if (lastHeight - block.Height >= 100)
{
confirmedBalance += output.Amount;
}
else
{
unconfirmedBalance += output.Amount;
}
}
else
{
if (block.IsVerified)
{
if (Time.EpochTime >= tx.LockTime)
{
confirmedBalance += output.Amount;
}
else
{
unconfirmedBalance += output.Amount;
}
}
else
{
unconfirmedBalance += output.Amount;
}
}
}
}
}
}
