import os
import socket
import time

from eth_account import Account
from web3._utils.transactions import fill_nonce, fill_transaction_defaults

Account.enable_unaudited_hdwallet_features()

ACCOUNTS = {
    "validator": Account.from_mnemonic(os.getenv("VALIDATOR1_MNEMONIC")),
    "community": Account.from_mnemonic(os.getenv("COMMUNITY_MNEMONIC")),
    "signer1": Account.from_mnemonic(os.getenv("SIGNER1_MNEMONIC")),
    "signer2": Account.from_mnemonic(os.getenv("SIGNER2_MNEMONIC")),
}
KEYS = {name: account.key for name, account in ACCOUNTS.items()}
ADDRS = {name: account.address for name, account in ACCOUNTS.items()}


def wait_for_port(port, host="127.0.0.1", timeout=40.0):
    start_time = time.perf_counter()
    while True:
        try:
            with socket.create_connection((host, port), timeout=timeout):
                break
        except OSError as ex:
            time.sleep(0.1)
            if time.perf_counter() - start_time >= timeout:
                raise TimeoutError(
                    "Waited too long for the port {} on host {} to start accepting "
                    "connections.".format(port, host)
                ) from ex


def fill_defaults(w3, tx):
    return fill_nonce(w3, fill_transaction_defaults(w3, tx))


def sign_transaction(w3, tx, key=KEYS["validator"]):
    "fill default fields and sign"
    acct = Account.from_key(key)
    tx["from"] = acct.address
    tx = fill_defaults(w3, tx)
    return acct.sign_transaction(tx)


def send_transaction(w3, tx, key=KEYS["validator"]):
    signed = sign_transaction(w3, tx, key)
    txhash = w3.eth.send_raw_transaction(signed.rawTransaction)
    return w3.eth.wait_for_transaction_receipt(txhash)