utility.py

import json, base58
from urllib.request import urlopen
from custom.parameters import *
from substrateinterface import Keypair, KeypairType


def v1_pubkey_to_v2_address(pubkey):
    pubkey_bytes = base58.b58decode(pubkey)
    pubkey_length = len(pubkey_bytes)

    # Add 0 head byte to pubkey so as to reach 32 bytes
    if pubkey_length < 32:
        pubkey_bytes = bytes([0] * (32 - pubkey_length)) + pubkey_bytes

    # get incomplete Substrate keypair (only public key) from public key bytes
    keypair = Keypair(
        public_key=pubkey_bytes, ss58_format=42, crypto_type=KeypairType.ED25519
    )

    # return V2 address
    return keypair.ss58_address


def date_to_bloc_number(date_timestamp: int, start_timestamp: int):
    "converts a unix timestamp to a block number in blockchain v2 based on estimated start timestamp"
    timestamp = date_timestamp - start_timestamp  # can be negative
    return b_seconds(timestamp) # lower approximation


def load_json(data):
    get_data = open(data)
    return json.load(get_data)


def load_json_url(url):
    with open(".env", "r") as file:
        env = file.read()

    if "prod=true" in env:
        path = "/home/axiom/dex-data/"
        f = open(path + url)
    else:
        website = "https://g1-migrator.axiom-team.fr/"
        f = urlopen(website + url)
    return json.load(f)