from flask import Flask, render_template, jsonify
import threading
import time

app = Flask(__name__)
current_state = "red"
lock = threading.Lock()

def reset_to_red():
    global current_state
    time.sleep(10)
    with lock:
        current_state = "red"

@app.route("/")
def index():
    return render_template("site_template.j2", state=current_state)

@app.route("/status")
def status():
    return jsonify({"state": current_state})

@app.route("/toggle", methods=["POST"])
def toggle():
    global current_state
    with lock:
        if current_state != "green":
            current_state = "green"
            threading.Thread(target=reset_to_red, daemon=True).start()
    return jsonify({"state": current_state})

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=8000)