#!/usr/bin/env python3
#
# Copyright 2019, Mischa Peters <mischa AT high5 DOT nl>, High5!.
# Version 1.0 - 20191028
# Version 1.1 - 20191106 - added battery status
#
# Get all sensor IDs (ZLLPresence, ZLLLightLevel and ZLLTemperature)
# grouped by ZLLPresence name
#       
# For example:
# $ get-sensors.py <bridge IP> <token>
#
# Follow the steps at the Hue Developer site to get the username/token
# https://developers.meethue.com/develop/get-started-2/
#
# Requires:
#   - Python >3.6
#
import argparse
import ssl
import urllib.request
import json
import re
import collections

parser = argparse.ArgumentParser(description="Get all sensor ids from Hue Bridge")
parser.add_argument("bridge", type=str, help="Hue Bridge IP")
parser.add_argument("token", type=str, help="Hue API Token")
parser.add_argument("-b", "--battery", type=int, help="battery check only, threshold, default 20")
parser.add_argument("-v", "--verbose", action='store_true', help="verbose")

try:
	args = parser.parse_args()
	bridge = args.bridge
	token = args.token
	battery = args.battery
	verbose = args.verbose

except argparse.ArgumentError as e:
	print(str(e))

no_cert_check = ssl.create_default_context()
no_cert_check.check_hostname=False
no_cert_check.verify_mode=ssl.CERT_NONE

url = f"https://{bridge}/api/{token}/sensors"
req = urllib.request.Request(url)
with urllib.request.urlopen(req, context=no_cert_check) as response:
	content = response.read()
json_data = json.loads(content)

p = re.compile("([a-fA-F0-9]{2}:?){8}")
sensors = collections.defaultdict(list);

for key in json_data:
	if "uniqueid" in json_data[key]:
		if p.search(json_data[key]['uniqueid']):
			if json_data[key]['type'] == 'ZLLPresence':
				sensors[json_data[key]['uniqueid'][:-8]].insert(0, key)
			elif json_data[key]['type'] == 'ZGPSwitch': 
			# Don't add ZGPSwitch, doesn't have a battery component
				continue
			else:
				sensors[json_data[key]['uniqueid'][:-8]].append(key)

for key in sensors:
	for i in sensors[key]:
		if not battery:
			if json_data.get(i)['type'] == 'ZLLPresence':
				print(f"{json_data.get(i)['name']:<32s} ({json_data.get(i)['config']['battery']}%)")
				print(f"{i:>5s}: {json_data.get(i)['productname']}") 
			if json_data.get(i)['type'] == 'ZLLLightLevel':
				print(f"{i:>5s}: {json_data.get(i)['productname']}") 
			if json_data.get(i)['type'] == 'ZLLTemperature':
				print(f"{i:>5s}: {json_data.get(i)['productname']}") 
		else:
			if not "battery" in json_data.get(i)['config']:
				print(f"Sensor without battery property found: {i}")
				print(json.dumps(json_data.get(i), indent=4, sort_keys=True))
				quit()
			if int(json_data.get(i)['config']['battery']) < battery:
				if json_data.get(i)['type'] == 'ZLLPresence':
					print(f"{json_data.get(i)['name']:<32s} battery level {json_data.get(i)['config']['battery']}%")