use evdev::{Device, InputEventKind};
use navka_common::navka::{relay_client::RelayClient, HidReport};
use tonic::transport::Channel;

const KEYBOARD: &str = "/dev/input/event4";        // adjust
const NAVKA_IP: &str = "192.168.42.253:4000";

#[tokio::main]
async fn main() -> anyhow::Result<()> {
    // open evdev
    let mut dev = Device::open(KEYBOARD)?;

    // connect to navka
    let channel = Channel::from_shared(format!("http://{NAVKA_IP}"))?
        .connect().await?;
    let (mut tx, _rx) = RelayClient::new(channel).stream().await?.into_inner();

    loop {
        for ev in dev.fetch_events()? {
            if let InputEventKind::Key(code) = ev.kind() {
                // simple map: only letters a-z for PoC
                let usage = match code.0 {
                    30..=55 => (code.0 - 26) as u8,     // HID usage 0x04..0x1d
                    _ => continue,
                };
                let mut buf = [0u8; 8];
                buf[2] = if ev.value() == 1 { usage } else { 0 };
                tx.send(HidReport { data: buf.to_vec() }).await?;
            }
        }
    }
}