#

# Author: L. Saetta

# 27 september 2017

#

# pylint: disable=invalid-name

import json

import time

import sys

from Device import Device

#

# Other Configurations

#

# time between msg send

sleepTime = 5

#the name of MQTT topic where msgs are sent

TOPIC_NAME = 'cardata'

# the name of the file with data

# fName = "raceData_short.log"

#

# Main

#

print("*******************")

print("Starting simulation....")

#

# reading file name from command line args

#

fName = sys.argv[1]

print("")

print("File name: ", fName)

# MQTT connectivity is encapsulated in Device class

gateway = Device("googx1")

gateway.connect()

nMsgs = 1

# open the input file and then... read, publish loop

try:

with open(fName) as fp:

line = fp.readline()

# wait for MQTT connection OK

# (at this point should be connected)

gateway.wait_for_conn_ok()

# read line by line...

while line:

print(line)

msgJson = line

try:

gateway.publish(TOPIC_NAME, msgJson)

except:

print('Error in sending...')

# sleep before next iteration

nMsgs += 1

time.sleep(sleepTime)

# read next line

line = fp.readline()

# end main loop

except IOError:

print("Errore: file not found: ", fName)

print("Interrupted...")

sys.exit(-1)

print()

print("*******************")

print("End of simulation...")

print("Num. of messages processed:", (nMsgs -1))

# close