haply 1.3.1

Haply Robotics Client Library for the Inverse Service
Documentation 
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//! Ping keepalive — maintains WS connection and prints connected device IDs.
//!
//! Usage:
//!   cargo run --example ping_demo
//!
//! Connect/disconnect devices while running to see them appear/disappear.
//! Note: ping is WS-only; USE_HTTP has no effect here.

use haply::HaplyDevice;
use std::io::Write;
use std::time::Duration;
use tokio::time::interval;

const HTTP_BASE: &str = "http://localhost:10001";
const WS_URL: &str = "ws://localhost:10001/";

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
    let mut device = HaplyDevice::new(HTTP_BASE, WS_URL).await?;
    println!("Connected — sending pings (Ctrl+C to stop)");

    let mut ticker = interval(Duration::from_millis(500));
    loop {
        ticker.tick().await;
        device.send_ping().await?;

        let state = device.read_state().await?;
        let mut ids: Vec<String> = Vec::new();
        for d in &state.inverse3 {
            ids.push(format!("i3:{}", d.device_id));
        }
        for d in &state.verse_grip {
            ids.push(format!("vg:{}", d.device_id));
        }
        for d in &state.wireless_verse_grip {
            ids.push(format!("wvg:{}", d.device_id));
        }
        for d in &state.custom_verse_grip {
            ids.push(format!("cvg:{}", d.device_id));
        }

        if ids.is_empty() {
            print!("\rDevices: (none)  total: 0          ");
        } else {
            print!("\rDevices: [{}]  total: {}   ", ids.join(", "), ids.len());
        }
        std::io::stdout().flush().unwrap();
    }
}