#!/usr/bin/env python3

import os
import re
import sys
from urllib.request import urlopen

url = 'http://www.weather.com/weather/today/%s'

re_tmp = re.compile(r'realTemp: "(\d+)"')
re_hum = re.compile(r'relativeHumidity: "(\d+)"')
re_loc = re.compile(r'locName: "([\w ]+)"')

# code = sys.argv[0][(sys.argv[0].rfind('_') + 1):]
code = os.environ.get('code', sys.argv[0][(sys.argv[0].rfind('_') + 1):])

if not code:
    sys.exit(1)
elif len(sys.argv) == 2 and sys.argv[1] == "autoconf":
    print("yes")
elif len(sys.argv) == 2 and sys.argv[1] == "config":
    u = urlopen(url % code)
    txt = u.read()
    u.close()

    LOC_list = re_loc.findall(txt)

    if len(LOC_list):
        LOC = LOC_list[0]
    else:
        LOC = "Unknown"

    print('graph_title Weather in %s' % LOC)
    print('graph_vlabel Temperature and Humidity')
    print('graph_category sensors')

    print('temperature.label Temperature')
    print('humidity.label Humidity')

    print('graph_args --base 1000 -l 0')
else:
    u = urlopen(url % code)
    txt = u.read()
    u.close()

    TMP_F_list = re_tmp.findall(txt)
    HUM_list = re_hum.findall(txt)

    if len(HUM_list):
        HUM = HUM_list[0]
    else:
        sys.exit(1)

    if len(TMP_F_list):
        TMP_F = TMP_F_list[0]
        TMP_C = (int(TMP_F) - 32) * 5 / 9
    else:
        sys.exit(1)

    print('temperature.value %s' % TMP_C)
    print('humidity.value %s' % HUM)