#!/usr/bin/env python3
import sys
from duniterpy.key import SigningKey


def generate_public_key(salt: str, password: str) -> str:
    """
    Return public key from credentials

    :param salt: Salt passphrase, using quotes if space in it
    :param password: Password
    """
    # Create key object
    # key = SigningKey(salt, password)
    key = SigningKey.from_credentials(salt, password)
    # SigningKey.save_private_key("private.key", "./")
    return key.pubkey

if __name__ == '__main__':

    # if bad number of arguments...
    if len(sys.argv) != 3:

        # display command usage
        print("""
        Usage:
            python gen_pubkey.py salt password
        """)

        # exit with status code error
        exit(1)

    # capture arguments
    _salt = sys.argv[1]
    _password = sys.argv[2]

    # display the public key
    print(generate_public_key(_salt, _password))

    # exit with status code ok
    exit(0)