public static Block GenesisBlock()
{
using (BlockchainDatabase db = BlockchainDatabase.Create())
{
Block genesisBlock = db.Blocks.FindOne(y => y.PreviousBlockHash == ChainParams.EmptyBlockHash);
if (genesisBlock != null)
{
return(genesisBlock);
}
genesisBlock = new Block
{
Date = DateTime.ParseExact("11/01/2018", "dd/MM/yyyy", CultureInfo.InvariantCulture),
Nonce = 4432,
DifficultyMask = ChainParams.CalculateDifficultyMask(null),
PreviousBlockHash = ChainParams.EmptyBlockHash
};
genesisBlock.Transactions.Add(new Transaction
{
Outputs = new List <TransactionOutput>
{
new TransactionOutput {
To = Globals.Keys.GenesisPublicKey, Amount = (decimal)(ChainParams.MaxSupply * ChainParams.PreMinePercentage)
}
}
});
db.Blocks.Insert(genesisBlock);
return(genesisBlock);
}
}
public static Transaction TransactionFromTxInput(TransactionInput txInput)
{
using (BlockchainDatabase db = BlockchainDatabase.Create())
{
string previousTx = txInput.PreviousTransactionHash;
Block blockWithTransaction = db.Blocks.FindOne(y => y.Transactions.Exists(z => z.Hash == previousTx));
if (blockWithTransaction == null)
{
return(null);
}
return(blockWithTransaction.Transactions.FirstOrDefault(y => y.Hash == previousTx));
}
}
public static Block GenerateBlock()
{
using (BlockchainDatabase db = BlockchainDatabase.Create())
{
uint lastBlockIndex = (uint)db.Blocks.Max(y => y.BlockIndex).AsInt32;
Block lastBlock = db.Blocks.FindOne(y => y.BlockIndex == lastBlockIndex);
Block newBlock = new Block
{
PreviousBlockHash = lastBlock.Hash,
Date = DateTime.Now,
DifficultyMask = ChainParams.CalculateDifficultyMask(lastBlock),
BlockIndex = lastBlockIndex + 1
};
return(newBlock);
}
}
