"""

#

# Author: L. Saetta

# created: 27 december 2017

# last update: 21/01/2018

#

# published under MIT license (see LICENSE file)

"""

# pylint: disable=invalid-name

import configparser

import datetime

import json

import os

import requests

import sys

import time

# only if using Googe Voice

sys.path.append('/home/pi/AIY-voice-kit-python/src')

import aiy.voicehat

from Device import Device

from OBDII import OBDII

from OBDIISimulator import OBDIISimulator

# control Python Version

vers = sys.version_info.major

# Configuration

# to format datetime

STFORMAT1 = "%d-%m-%Y %H:%M:%S"

STFORMAT2 = "%d-%m-%Y"

# used for START_TRIP msg

STFORMAT3 = "%d-%m-%Y %H"

# send a msg every 5 sec.

sleepTime = 5

# the name of MQTT topic where msgs are sent

TOPIC_NAME = 'cardata'

TOPIC_ALERTS_NAME = "caralerts"

# read configuration from gateway.ini file

# read OBD2_HOME env variable

OBD2HOME = os.getenv('OBD2_HOME')

config = configparser.ConfigParser()

config.read(OBD2HOME + '/gateway.ini')

msgLogging = config['DEFAULT']['msgLogging']

carID = config['DEFAULT']['carID']

# should be read from config file

HOST = "ubuntucontainers-dashboariotnew-zekci6cs.srv.ravcloud.com"

PORT = 8883

# file name for local logging

FNAME = OBD2HOME + "/msgs" + datetime.datetime.now().strftime(STFORMAT2) + ".log"

#

# get Position

#

def get_position():

return lat, lon, alt

#

# createJSONMsg()

# create the msg in JSON format starting from OBDII readings

#

def createJSONMsg():

return msgJson

#

#

# createEventMsg

#

def createEventMsg(event_type):

return msgJson

#

# **** Main ****

#

#

# Test if simulation mode (no acquiring data from OBDII)

#

# runMode = SIMUL|ACQUIRE|NULL (null means ACQUIRE)

parLenght = len(sys.argv)

if parLenght >= 2:

runMode = sys.argv[1]

else:

runMode = "ACQUIRE"

print("")

print("***")

print("*** OBD2 Data Acquisition Program started ***")

print("***")

print("*** RUN MODE: ", runMode)

print('*** Python Version ', vers)

# MQTT connectivity is encapsulated in the Device class

# see Device.py

clientID = carID

# clientID is passed to make possible different clientID

# MQTT doesn't allow different clients with same ID (second is disconnected)

gateway = Device(clientID)

# try connecting in loop

# to handle case in which initially no network connection

while gateway.isConnected() != True:

try:

gateway.connect(HOST, PORT, "YES")

except:

print('*** Error in MQTT connection !')

print('\n')

print('*** Error info: ', sys.exc_info()[0], sys.exc_info()[1])

time.sleep(sleepTime)

# to signal MQTT OK blink

led = aiy.voicehat.get_led()

led.set_state(aiy.voicehat.LED.BLINK)

#

# connectivity to OBDII interface

# here it decides if running a simulator or real client

#

if runMode == "ACQUIRE":

obdii = OBDII()

else:

# SIMUL

obdii = OBDIISimulator()

#

# main loop

#

if msgLogging == "YES":

pFile = open(FNAME, "w")

# wait for MQTT connection OK

# (at this point should be connected)

gateway.wait_for_conn_ok()

# in this point I must insert the SEND for START_TRIP msg

try:

msgJson = createEventMsg("START_TRIP")

gateway.publish(TOPIC_ALERTS_NAME, msgJson)

except:

print('Error in sending START_TRIP...')

nMsgs = 0

while True:

nMsgs = nMsgs + 1

print('*** Sending msg n. ', nMsgs)

# create the msg to send from data

msgJson = createJSONMsg()

try:

time.sleep(0.5)

led.set_state(aiy.voicehat.LED.ON)

gateway.publish(TOPIC_NAME, msgJson)

time.sleep(0.5)

led.set_state(aiy.voicehat.LED.OFF)

except:

print('Error in sending...')

print('*** Error info: ', sys.exc_info()[0], sys.exc_info()[1])

if msgLogging == "YES":

# log msg on file...

pFile.write(msgJson)

pFile.write('\n')

time.sleep(sleepTime)

if msgLogging == "YES":

pFile.close()