"""What the scripts share: the keys, kept outside this folder and never printed, and the SEND prompt."""
import json
import os
import sys

from eth_account import Account

sys.stdout.reconfigure(encoding="utf-8", errors="replace")

KEYS = os.path.join(os.path.expanduser("~"), ".orblivion")
EXPLORER = "https://robin.etherscan.io"


def load(name):
    """The account in ~/.orblivion/<name>.json. The key itself is never printed."""
    with open(os.path.join(KEYS, name + ".json"), encoding="utf-8") as f:
        return Account.from_key(json.load(f)["private_key"])


def confirm(*lines):
    """Nothing real is sent unless SEND is typed."""
    print()
    for line in lines:
        print(line)
    if input("Type SEND to go ahead: ").strip() != "SEND":
        sys.exit("Not sent.")


def amount(atoms, decimals):
    return atoms / 10 ** decimals


def tx(h):
    return f"{EXPLORER}/tx/{h}"