#!/bin/bash

# read SONiC immutable variables
[ -f /etc/sonic/sonic-environment ] && . /etc/sonic/sonic-environment

function help()
{
    echo -e "Usage: $0 -n [0 to $(($NUM_ASIC-1))] [OPTION]... " 1>&2; exit 1;
}

DOCKER_EXEC_FLAGS="i"

# Determine whether stdout is on a terminal
if [ -t 1 ] ; then
    DOCKER_EXEC_FLAGS+="t"
fi

DEV=""
PLATFORM=${PLATFORM:-`sonic-cfggen -H -v DEVICE_METADATA.localhost.platform`}

# Parse the device specific asic conf file, if it exists
ASIC_CONF=/usr/share/sonic/device/$PLATFORM/asic.conf
[ -f $ASIC_CONF ] && . $ASIC_CONF

if [[ ($NUM_ASIC -gt 1) ]]; then
    while getopts ":n:h:" opt; do
        case "${opt}" in
            h) help
               ;;
            n) DEV=${OPTARG}
               [ $DEV -lt $NUM_ASIC -a  $DEV -ge 0 ] || help
               ;;
        esac
    done

    if [ -z "${DEV}" ]; then
        help
    fi

    # Skip the arguments -n <inst> while passing to docker command
    shift 2
fi

docker exec -$DOCKER_EXEC_FLAGS swss$DEV swssloglevel "$@"