#!/usr/bin/env python3
# Copyright 2018 AT&T Intellectual Property, Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# 
#  Author  Prakash Hosangady(ph553f@att.com)
#    CBS Polling
#    Set the hb_common table with state="RECONFIGURATION" periodically
#    to get the new configuration downloaded

import requests
import sched, datetime, time
import string
import sys
import os
import socket
import htbtworker as pm
import misshtbtd as db
import logging
import get_logger
_logger = get_logger.get_logger(__name__)
            

def pollCBS(current_pid):
    jsfile = db.fetch_json_file()
    ip_address, port_num, user_name, password, db_name, cbs_polling_required, cbs_polling_interval = db.read_hb_properties(jsfile)
    hbc_pid, hbc_state, hbc_srcName, hbc_time = db.read_hb_common(user_name,password,ip_address,port_num,db_name)
    msg="CBSP:Main process ID in hb_common is %d",hbc_pid
    _logger.info(msg)
    msg="CBSP:My parent process ID is %d",current_pid
    _logger.info(msg)
    msg="CBSP:CBS Polling interval is %d", cbs_polling_interval
    _logger.info(msg)
    envPytest = os.getenv('pytest', "")
    if (envPytest == 'test'):
       cbs_polling_interval = "30"
    time.sleep(int(cbs_polling_interval))
    hbc_pid, hbc_state, hbc_srcName, hbc_time = db.read_hb_common(user_name,password,ip_address,port_num,db_name)
    #connection_db = pm.postgres_db_open(user_name,password,ip_address,port_num,db_name)
    #cur = connection_db.cursor()
    source_name = socket.gethostname()
    source_name = source_name + "-" + str(os.getenv('SERVICE_NAME', ""))
    result= True
    if(int(current_pid)==int(hbc_pid) and source_name==hbc_srcName and hbc_state == "RUNNING"):
        _logger.info("CBSP:ACTIVE Instance:Change the state to RECONFIGURATION")
        state = "RECONFIGURATION"
        update_flg = 1
        db.create_update_hb_common(update_flg, hbc_pid, state, user_name,password,ip_address,port_num,db_name)
    else:
        _logger.info("CBSP:Inactive instance or hb_common state is not RUNNING")
    return result 
if __name__ == "__main__":
    current_pid = sys.argv[1]
    while(True):
        pollCBS(current_pid)