use chrono::{NaiveDateTime, TimeDelta, Utc};
use rand::{Rng, distr::Alphanumeric, rng};

pub fn generate_token_and_expiration(
    token_length_bytes: usize,
    validity: TimeDelta,
) -> (String, NaiveDateTime) {
    let value = std::iter::repeat(())
        .map(|()| rng().sample(Alphanumeric))
        .take(token_length_bytes)
        .collect::<Vec<_>>();

    let token = String::from_utf8(value).unwrap();

    let expires = Utc::now().naive_utc() + validity;

    (token, expires)
}