PyChain/Main.py at main · DamScan/PyChain · GitHub

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from BlockchainUtils import BlockchainUtils
from Wallet import Wallet
from TransactionPool import TransactionPool
from Blockchain import Blockchain
import pprint

if __name__ == '__main__':
    sender = 'sender'
    receiver = 'receiver'
    amount = 1
    type = 'TRANSFER'

    wallet = Wallet()
    pool = TransactionPool()

    transaction = wallet.createTransaction(receiver, amount, type)

    if not pool.transactionExists(transaction):
        pool.addTransaction(transaction)

    blockchain = Blockchain()

    lastHash = BlockchainUtils.hash(
        blockchain.blocks[-1].payload()
    ).hexdigest()

    blockCount = blockchain.blocks[-1].blockCount + 1

    block = wallet.createBlock(pool.transactions, lastHash, blockCount)

    if not blockchain.lastBlockHashValid(block):
        print('lastBlockHash is not valid')

    if not blockchain.blockCountValid(block):
        print('BlockCount is not valid')

    if blockchain.lastBlockHashValid(block) and blockchain.blockCountValid(block):
        blockchain.addBlock(block)

    # blockchain.addBlock(block)

    pprint.pprint(blockchain.toJson())