from bitcoinutils.transactions import Transaction, TxInput, TxOutput
from bitcoinutils.script import Script
from bitcoinutils.setup import setup
from bitcoinutils.keys import P2pkhAddress, PrivateKey
from bitcoinutils.constants import TYPE_RELATIVE_TIMELOCK
from bitcoinutils.utils import to_satoshis

# Setup the Bitcoin network
setup('mainnet')

# Define private keys and addresses
priv = PrivateKey('cRKQhZMAaFSpKNdsLKUszEyGyPo9eHhWioXE8utG6z77Em27wTLi')
pub = priv.get_public_key()
addr = pub.get_taproot_address()

# Create a new transaction
tx = Transaction([], [])

# Define the script using Taproot's flexible conditions
taproot_script = Script([pub.to_hex(), 'OP_CHECKSIG'])

# Define the input and output
input = TxInput('transaction_id', 0)
output = TxOutput(to_satoshis(0.01), addr.to_script_pub_key())

# Add the input and output to the transaction
tx.add_input(input)
tx.add_output(output)

# Sign the transaction using Schnorr signature
sig = priv.sign_input(tx, 0, taproot_script)

# Verify and broadcast the transaction
tx = Transaction([input], [output])
tx.inputs[0].script_sig = Script([sig, pub.to_hex()])

print(tx.serialize())