use yunohost_api::{YunohostUsers, Username};

use std::io::{BufRead, Stdin, stdin};
use std::str::FromStr;

fn acquire_loop<T: FromStr>(input: &Stdin, message: &str) -> T
where <T as FromStr>::Err: std::fmt::Display {
    loop {
        println!("{message}");
        let value = input.lock().lines().next().unwrap().unwrap();
        match T::from_str(&value) {
            Ok(v) => {
                return v;
            }, Err(e) => {
                println!("{}", e);
            }
        }
    }
}

#[tokio::main(flavor = "current_thread")]
async fn main() {
    env_logger::init();

    let input = stdin();
    let users = YunohostUsers::new(500).await.unwrap();

    loop {
        println!("Welcome to Yunohost! What user would you like to know about?");

        let username: Username = acquire_loop(&input, "Username:");

        if users.get_user(&username).await.unwrap() {
            println!("User found!");
        } else {
            println!("User not found!");
        }
    }
}