use ovunto_security::{Algorithm, Key, TOTPGenerator};
use std::{
    thread::sleep,
    time::{Duration, SystemTime, UNIX_EPOCH},
};

extern crate base32;
extern crate ovunto_security;

fn main() {
    let secret = [0u8; 32];

    println!(
        "secret: {}",
        base32::encode(base32::Alphabet::RFC4648 { padding: false }, &secret)
    );

    loop {
        for algorithm in [Algorithm::Sha1, Algorithm::Sha256, Algorithm::Sha512] {
            let generator = TOTPGenerator {
                secret: Key(secret),
                algorithm,
                ..Default::default()
            };
            let totp = generator.generate();

            println!("{algorithm}: {totp}");
        }

        let time = SystemTime::now()
            .duration_since(UNIX_EPOCH)
            .expect("Time went backwards")
            .as_secs();

        sleep(Duration::new(30 - time % 30, 0));
    }
}