use sdp_nom::Session;

fn read_from_args() -> Option<Session<'static>> {
    if let Some(arg) = std::env::args().nth(1) {
        if let Ok(content) = std::fs::read_to_string(arg) {
            Some(Session::read_str(&content).into_owned())
        } else {
            None
        }
    } else {
        println!("no input! please pass a file path as first parameter");
        None
    }
}

fn main() {
    let session = read_from_args().unwrap();

    cfg_if::cfg_if! {
        if #[cfg(feature = "serde")] {
            println!("{}", serde_json::to_string_pretty(&session).unwrap());
        } else {
            println!("{:#?}", session);
            // print!("{}", session.to_string());
        }
    }
}