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// type something and hit enter
// from https://stackoverflow.com/a/55201400/5066426
 
use std::io;
use std::sync::mpsc;
use std::sync::mpsc::Receiver;
use std::sync::mpsc::TryRecvError;
use std::{thread, time};
 
fn main() {
    let stdin_channel = spawn_stdin_channel();
    loop {
        match stdin_channel.try_recv() {
            Ok(key) => println!("Received: {}", key),
            Err(TryRecvError::Empty) => println!("Channel empty"),
            Err(TryRecvError::Disconnected) => panic!("Channel disconnected"),
        }
        sleep(1000);
    }
}
 
fn spawn_stdin_channel() -> Receiver<String> {
    let (tx, rx) = mpsc::channel::<String>();
    thread::spawn(move || loop {
        let mut buffer = String::new();
        io::stdin().read_line(&mut buffer).unwrap();
        tx.send(buffer).unwrap();
    });
    rx
}
 
fn sleep(millis: u64) {
    let duration = time::Duration::from_millis(millis);
    thread::sleep(duration);
}