try:
    import urequests as requests #For MicroPython
except :
    import requests
import json
import gc
from machine import WDT
from machine import Pin

wdt = WDT(timeout=30000)
wdt.feed()
gc.enable()

led = Pin(2, Pin.OUT)
led.on()

with open("config.json", 'r') as f:
    config = json.load(f)

offset = "0"
while True:
    gc.collect()
    wdt.feed()
    #long poll for response
    querry = 'limit=1&offset={}&timeout=5'.format(offset)
    try:
        resp = requests.get(url='https://api.telegram.org/bot{}/{}?{}'.format(config["token"], "getUpdates", querry))
        json = resp.json()
        resp.close()
        if json.get("result"):
            #get latest message
            offset = json.get("result")[0].get("update_id") + 1
            text = json["result"][0]["message"]["text"]
            print(text)
            if text=="/on":
                led.on()
            if text=="/off":
                led.off()
            #echo message
            querry = 'chat_id={}&text={}'.format(config["recipient"], text)
            requests.get(url='https://api.telegram.org/bot{}/{}?{}'.format(config["token"], "sendMessage", querry))
        
    except Exception as e:
        print(e)
        resp.close()