import json
from datetime import datetime
import requests
import paho.mqtt.client as mqtt
from datetime import datetime
import json
import traceback

last_weather = None

def on_log(client, userdata, level, buff):
    print(datetime.now().isoformat(), client, userdata,level,buff)

def on_connect(client, userdata, flags, rc):  # The callback for when the client connects to the broker
    print("Connected with result code {0}".format(str(rc)))  # Print result of connection attempt
    #client.subscribe("zigbee2mqtt/0x00a5")
    #client.subscribe("zigbee2mqtt/#")


def on_message(client, userdata, msg):  # The callback for when a PUBLISH message is received from the server.
    payload = str(msg.payload)
    print("Message received -> " + msg.topic + " " + payload)  # Print a received msg
    try:
        m_in=json.loads(msg.payload.decode('utf-8'))
        print(m_in)
        if type(m_in) == list:
            print("no data in this message")
            return
        print(datetime.now().isoformat(), m_in.get("humidity"), m_in.get("temperature"))
        temp =  m_in.get("temperature")
        humidity = m_in.get("humidity")
        pressure = m_in.get("pressure")
        if not temp and not humidity:
            print("no weather data in this message")
            return
        if last_weather is not None and (datetime.now() - last_weather).seconds < 300:
            print("too soon weather data",  (datetime.now() - last_weather).seconds)
            return
        globals()['last_weather'] = datetime.now()
        time_weather = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
        url = 'http://wow.metoffice.gov.uk/automaticreading?siteid=f2000c0-0000-e000-0000-000000000&siteAuthenticationKey=00000000'
        url += '&dateutc='+datetime.utcnow().strftime("%Y-%m-%d+%H:%M:%S").replace(':','%3A')
        url += '&softwaretype=custom_software'
        url += '&humidity='+str(humidity)
        url += '&tempf='+str((temp*1.8)+32)
        url += '&baromin='+str(pressure*0.02953)
        print(url)
        r = requests.get(url)
        print(r)
    except:
        traceback.print_exc()

client = mqtt.Client("weather")
client.on_connect = on_connect
client.on_message = on_message
client.on_log = on_log
client.username_pw_set("mqtt", "mqtt")
client.connect('192.168.1.1')
client.loop_forever()  # Start networking daemon