#!/bin/bash
# Copyright (C) 2015-2017 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

# Purpose: This script is needed to start the client and service with
# one command. This is necessary as ctest - which is used to run the
# tests - isn't able to start two binaries for one testcase. Therefore
# the testcase simply executes this script. This script then runs client
# and service and checks that both exit sucessfully.

FAIL=0

# Parameter 1: the pid to check
check_tcp_udp_sockets_are_closed ()
{
    # Check that the service does not listen on any TCP/UDP socket 
    # or has any active connection via a TCP/UDP socket
    # awk is used to avoid the case when a inode number is the same as a PID. The awk
    # program filters the netstat output down to the protocol (1st field) and 
    # the PID/Program name (last field) fields.
    SERVICE_SOCKETS_LISTENING=$(netstat -tulpen 2> /dev/null | awk '{print $1 "\t"  $NF}' | grep $1 | wc -l)
    if [ $SERVICE_SOCKETS_LISTENING -ne 0 ]
    then
        ((FAIL+=1))
    fi

    SERVICE_SOCKETS_CONNECTED=$(netstat -tupen 2> /dev/null | awk '{print $1 "\t"  $NF}' | grep $1 | wc -l)
    if [ $SERVICE_SOCKETS_CONNECTED -ne 0 ]
    then
        ((FAIL+=1))
    fi
}

# Start the service
export VSOMEIP_APPLICATION_NAME=local_routing_test_service
if [ "$VSOMEIP_CONFIGURATION_SERVICE" != "" ]
then
    export VSOMEIP_CONFIGURATION=$VSOMEIP_CONFIGURATION_SERVICE
else
    export VSOMEIP_CONFIGURATION=local_routing_test_service.json
fi
./local_routing_test_service &
SERIVCE_PID=$!
sleep 1;

check_tcp_udp_sockets_are_closed  $SERIVCE_PID

# Start the client
export VSOMEIP_APPLICATION_NAME=local_routing_test_client
if [ "$VSOMEIP_CONFIGURATION_CLIENT" != "" ]
then
    export VSOMEIP_CONFIGURATION=$VSOMEIP_CONFIGURATION_CLIENT
else
    export VSOMEIP_CONFIGURATION=local_routing_test_client.json
fi
./local_routing_test_client &
CLIENT_PID=$!

check_tcp_udp_sockets_are_closed  $SERIVCE_PID
check_tcp_udp_sockets_are_closed  $CLIENT_PID

# Wait until client and service are finished
for job in $(jobs -p)
do
    # Fail gets incremented if either client or service exit
    # with a non-zero exit code
    wait $job || ((FAIL+=1))
done

# Check if client and server both exited successfully and the service didnt't
# have any open 
if [ $FAIL -eq 0 ]
then
    exit 0
else
    exit 1
fi