use serde::{ Serialize, Deserialize };
use jsonwebtoken::{ encode, decode, Header, Validation, EncodingKey, DecodingKey };

#[derive(Debug, Serialize, Deserialize)]
struct Claims {
    sub: String,
    company: String,
    exp: usize,
}

// https://mp.weixin.qq.com/s/KkcLH42b5vepmPZiwS6g5Q
fn main() -> Result<(), Box<dyn std::error::Error>> {
    let my_claims = Claims {
        sub: "Test Sub".into(),
        company: "Test Company".into(),
        exp: 1597546123497,
    };
    let token = encode(&Header::default(), &my_claims, &EncodingKey::from_secret("secret".as_ref()))?;
    // let token = encode(&Header::default(), &my_claims, &EncodingKey::from_secret("secret".as_ref()))?;
    // let token = encode(&Header::new(Algorithm::RS256), &my_claims, &EncodingKey::from_rsa_pem(include_bytes!("privkey.pem"))?)?;

    println!("Token: {}", token);

    let decoded_token = decode::<Claims>(&token, &DecodingKey::from_secret("secret".as_ref()), &Validation::default())?;

    println!("Decoded token: {:#?}", decoded_token);

    Ok(())
}