Flask ile web kontrol paneli

from flask import Flask, jsonify, request, abort
import threading, time, os

app = Flask(__name__)
TOKEN = os.environ["ROBOT_TOKEN"]          # belirteç koda değil ortama
state = {"cmd": "stop", "speed": 0.0, "t": 0.0}
lock = threading.Lock()

@app.post("/api/drive")
def drive():
    if request.headers.get("X-Token") != TOKEN:
        abort(401)
    body = request.get_json(silent=True) or {}
    cmd, speed = body.get("cmd"), body.get("speed", 0.5)
    if cmd not in {"forward", "back", "left", "right", "stop"} or not 0 <= speed <= 1:
        return jsonify(error="bad command"), 400
    with lock:
        state.update(cmd=cmd, speed=0 if cmd == "stop" else speed, t=time.monotonic())
    return jsonify(ok=True, **state)

def watchdog():
    while True:                             # 1 s komut gelmezse dur
        with lock:
            if state["cmd"] != "stop" and time.monotonic() - state["t"] > 1.0:
                state.update(cmd="stop", speed=0.0)
        time.sleep(0.1)

threading.Thread(target=watchdog, daemon=True).start()
app.run(host="0.0.0.0", port=5000)          # yalnız yerel ağda; internete açma

// Bekçi 1 s'de durdurur; bu yüzden basılıyken her 200 ms'de yeniden gönder
let timer = null
const send = (cmd) => fetch('/api/drive', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json', 'X-Token': localStorage.token },
  body: JSON.stringify({ cmd, speed: Number(speedInput.value) }),
})
function hold(cmd) { send(cmd); timer = setInterval(() => send(cmd), 200) }
function release() { clearInterval(timer); send('stop') }   // bırakınca hemen dur
document.querySelectorAll('[data-cmd]').forEach((b) => {
  b.addEventListener('pointerdown', () => hold(b.dataset.cmd))
  b.addEventListener('pointerup', release)
  b.addEventListener('pointerleave', release)
})