mod types;
pub mod device_code;

use std::error::Error;
use std::fmt::{Display, Formatter};
use chrono::{DateTime, Utc};
pub use types::*;

#[derive(Debug)]
pub enum AuthError {
    Request { what: &'static str, error: reqwest::Error },
}

impl Display for AuthError {
    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
        match self {
            AuthError::Request { what, error } => write!(f, "auth request error ({}): {}", what, error)
        }
    }
}

impl Error for AuthError {
    fn source(&self) -> Option<&(dyn Error + 'static)> {
        match self {
            AuthError::Request { error, .. } => Some(error)
        }
    }
}

impl Token {
    fn is_expired(&self, now: DateTime<Utc>) -> bool {
        self.expire.is_some_and(|exp| now < exp)
    }
}

impl MsaUser {
    async fn log_in(&mut self) -> Result<(), AuthError> {
        todo!()
    }
}

#[cfg(test)]
mod test {
    use reqwest::Client;
    use super::*;

    #[tokio::test]
    async fn abc() {
        device_code::DeviceCodeAuthBuilder::new()
            .client_id("00000000402b5328")
            .scope("service::user.auth.xboxlive.com::MBI_SSL")
            .url("https://login.live.com/oauth20_connect.srf")
            .begin(Client::new()).await.unwrap();
    }
}