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use std::process::Command;
use std::str;
use std::sync::mpsc::{channel, Receiver};
use std::thread::{sleep, spawn};
use std::time::Duration;

#[derive(Debug)]
pub struct Event {
    pub x: u16,
    pub y: u16,
}

pub fn spawn_thread(interval_ms: u64) -> Receiver<Event> {
    let interval = Duration::from_millis(interval_ms);
    let (tx, rx) = channel();
    spawn(move || loop {
        tx.send(get_current_mouse_location()).unwrap();
        sleep(interval);
    });
    rx
}

pub fn get_current_mouse_location() -> Event {
    let r = Command::new("xdotool")
        .arg("getmouselocation")
        .output()
        .unwrap();
    let stdout = r.stdout;
    let stdout = unsafe { str::from_utf8_unchecked(&stdout) };
    let coords = stdout.split(' ').take(2);
    let coords = coords.map(|s| s[2..].parse::<u16>().unwrap());
    let coords = coords.collect::<Vec<_>>();
    Event {
        x: coords[0],
        y: coords[1],
    }
}