from flask import Flask, render_template, jsonify
import subprocess
import platform
import json
import threading
import time

app = Flask(__name__)

def ping(host):
    param = '-n' if platform.system().lower() == 'windows' else '-c'
    command = ['ping', param, '1', host]
    return subprocess.call(command, stdout=subprocess.DEVNULL) == 0

def load_config():
    with open('config.json') as f:
        return json.load(f)

device_status = {}

def update_status():
    while True:
        config = load_config()
        for device in config['devices']:
            device_status[device['name']] = ping(device['ip'])
        time.sleep(config['check_interval'])

@app.route('/')
def home():
    return render_template('index.html')

@app.route('/api/status')
def status():
    return jsonify(device_status)

if __name__ == '__main__':
    status_thread = threading.Thread(target=update_status, daemon=True)
    status_thread.start()
    app.run(debug=True)