import pytest
import logging
import logging.config
from subprocess import check_output
from waiting import wait
import time
from onapsdk.configuration import settings
from oransdk.dmaap.dmaap import OranDmaap
import os

resources_path="./resources"

# Set working dir as python script location
abspath = os.path.abspath(__file__)
dname = os.path.dirname(abspath)
os.chdir(dname)

logging.config.dictConfig(settings.LOG_CONFIG)
logger = logging.getLogger("Test Session setup")


def start_network_simulators():
	cmd="kubectl create namespace network"
	check_output(cmd, shell=True).decode('utf-8')
	cmd=f"helm install --debug oran-simulator local/ru-du-simulators --namespace network -f {resources_path}/network-simulators-override.yaml -f {resources_path}/network-simulators-topology-override.yaml"
	check_output(cmd, shell=True).decode('utf-8')

def stop_network_simulators():
	cmd="kubectl delete namespace network"
	return check_output(cmd, shell=True).decode('utf-8')

def is_network_simulators_up():
	cmd="kubectl get pods --field-selector status.phase!=Running -n network"
	result=check_output(cmd, shell=True).decode('utf-8')
	logger.info (f"Checking if network simulators is UP:{result}")
	if "" == result:
		logger.info ("Network sims is Up")
		return True
	else:
		logger.info ("Network sims is Down")
		return False

def is_onap_up():
	cmd="kubectl get pods --field-selector status.phase!=Running -n onap | wc -l"
	result=check_output(cmd, shell=True).decode('utf-8')
	logger.info (f"Checking if ONAP is UP:{result}")
	if int(result) <= 9:
		logger.info ("ONAP is Up")
		return True
	else:
		logger.info ("ONAP is Down")
		return False

def is_nonrtric_up():
	cmd="kubectl get pods --field-selector status.phase!=Running -n nonrtric | wc -l"
	result=check_output(cmd, shell=True).decode('utf-8')
	logger.info (f"Checking if NONRTRIC is UP:{result}")
	if int(result) == 0:
		logger.info ("NONRTRIC is Up")
		return True
	else:
		logger.info ("NONRTRIC is Down")
		return False

def wait_for_smo_to_be_running():
	wait(lambda: is_onap_up() and is_nonrtric_up(), sleep_seconds=10, timeout_seconds=300, waiting_for="SMO to be ready")

def wait_for_network_simulators_to_be_running():
	wait(lambda: is_network_simulators_up(), sleep_seconds=10, timeout_seconds=60, waiting_for="Network simulators to be ready")

def pytest_sessionstart(session):
	wait_for_smo_to_be_running()
	# Due to an Onap Ves bugs or dmaap ?? DU sims must send messages twice so we need to restart the sims
	start_network_simulators()
	wait_for_network_simulators_to_be_running()
	time.sleep(2)
	dmaap = OranDmaap()
        # Do a first get to register the o1test/o1test user in DMAAP, all messages will then be stored for him
	dmaap.get_message_from_topic("unauthenticated.VES_PNFREG_OUTPUT", 10000, settings.DMAAP_GROUP, settings.DMAAP_USER)

	## Now kill the simulators and restart them for the test session
	stop_network_simulators()

	start_network_simulators()
	wait_for_network_simulators_to_be_running()
	# Wait enough time to have at least the SDNR notifications sent
	time.sleep(30)
	logger.info ("Test Session setup completed successfully")



def pytest_sessionfinish(session, exitstatus):
	stop_network_simulators()
	logger.info ("Test Session cleanup done")