import json
import RainEagle
import sys
import time

def print_data(*args):
	print '\t'.join(x.encode('utf8').encode('string-escape') for x in args)

if __name__ == '__main__':
	with open('eagle.config') as fp:
		conf = json.load(fp)

	raineagle = RainEagle.Eagle( debug=0 , addr=conf['addr'],
		username = conf['username'],
		password = conf['password']
	)

	try:
		macid = conf['macid']
	except KeyError:
		ret_data = raineagle.list_devices()
		#print 'list devices:', `ret_data`
		macid = ret_data['DeviceInfo']['DeviceMacId']
		#print "device MacID = ", macid
		print >>sys.stderr, 'macid not specified, detected:', `macid`

	#macid = '0xd8d5b90000001346'

	#print `raineagle.get_instantaneous_demand(macid)`
	#print `raineagle.get_summation_values(macid, interval='day')`
	#print `raineagle.get_fast_poll_status(macid)`

	fields = [ 'demand_timestamp', 'meter_status', 'demand',
	    'threshold_upper_demand', 'demand_units', 'summation_delivered',
	    'summation_received', 'summation_units', ]
	tzfields = [ 'timezone_tzName', 'timezone_localTime',
	    'timezone_utcTime', 'timezone_utcOffset' ]

	interval = conf.get('interval', 10)
	tzinterval = conf.get('tzinterval', 24*60*60)
	tzs = s = time.time()
	while True:
		usage_data = raineagle.get_usage_data(macid)
		if False:
			print `usage_data`
		else:
			#{u'message_queue': u'active', u'threshold_lower_demand': u'-2.000000', u'fast_poll_frequency': u'0x00', u'summation_delivered': u'65374.021', u'message_read': u'Y', u'price': u'0.2700', u'demand_timestamp': u'1571842464', u'fast_poll_endtime': u'0x00000000', u'meter_status': u'Connected', u'message_confirm_required': u'N', u'message_confirmed': u'N', u'demand_units': u'kW', u'summation_units': u'kWh', u'demand': u'0.9980', u'price_units': u'840', u'message_timestamp': u'946684800', u'price_label': u'Set by User', u'threshold_upper_demand': u'9.155000', u'message_id': u'0', u'summation_received': u'0.000'}
			try:
				print_data('l', *(usage_data[x] for x in fields))
			except KeyError:
				print_data('e', 'usage', `usage_data`)

		e = time.time()

		if e >= tzs:
			tzs += tzinterval
			# {u'timezone_tzName': u'GMT+7', u'timezone_status': u'success', u'timezone_localTime': u'1571844539', u'timezone_olsonName': u'Etc/GMT+7', u'timezone_utcTime': u'1571869739', u'timezone_utcOffset': u'-0700'}
			tzinfo = raineagle.get_timezone(macid)
			tzoffset = int(tzinfo['timezone_utcTime']) - \
			    int(tzinfo['timezone_localTime'])
			try:
				print_data('z', *(tzinfo[x] for x in tzfields))
			except KeyError:
				print_data('e', 'tz', `usage_data`)

		sys.stdout.flush()
		s += interval
		delay = s - e
		if delay <= 0:
			s = time.time()
			continue

		time.sleep(delay)
	#print `raineagle.get_time_source(macid)`