import csv
import jwt
import time

from db import MedodsAPI


def load_api_key(csv_path="apiKey.csv"):
    with open(csv_path, newline="", encoding="utf-8") as f:
        reader = csv.DictReader(f)
        return next(reader)


def generate_token():
    medodsDB = MedodsAPI.query.first()
    if not medodsDB:
        return None

    identity = medodsDB.identity
    secret = medodsDB.secretKey

    iat = int(time.time())
    exp = iat + 60  # <= 64 сек

    payload = {"iss": identity, "iat": iat, "exp": exp}

    token = jwt.encode(payload, secret, algorithm="HS512")

    return token