#!/bin/sh
export QNAP_QPKG="CloudLink"
CONF=/etc/config/qpkg.conf
QPKG_INSTALL_PATH=`/sbin/getcfg -f /etc/config/qpkg.conf $QNAP_QPKG Install_Path`
TUNNEL_AGENT_DAEMON_PID_LIST=`/bin/ps --columns 256 | /bin/grep "$QPKG_INSTALL_PATH/bin/tunnel_agent_daemon.sh" | /bin/grep -v grep | /bin/awk '{print $1}'`
SETSID_BIN=/bin/setsid

# check if got QPKG_INSTALL_PATH
if [ "$QPKG_INSTALL_PATH" == "" ]; then
    echo "Failed to get QPKG_INSTALL_PATH"
    exit 1
fi

function customize_by_device_type() {
    DEVICE_TYPE=`/usr/sbin/qcloud_tool -d 2>/dev/null`
    if [ "$DEVICE_TYPE" = "QVP" ]; then
        /bin/cp ${QPKG_INSTALL_PATH}/ui/customized/tunnel_agent_embedded_main_qvp.js ${QPKG_INSTALL_PATH}/ui/tunnel_agent_embedded_main.js
    fi
}

case "$1" in
  start)
    ENABLED=$(/sbin/getcfg $QNAP_QPKG Enable -u -d FALSE -f $CONF)
    if [ "$ENABLED" != "TRUE" ]; then
        echo "$QNAP_QPKG is disabled."
        exit 1
    fi
    : ADD START ACTIONS HERE

    # execute customized part
    $(customize_by_device_type)

    # execute "cd" to avoid cwd missing
    cd ${QPKG_INSTALL_PATH}

    # create web UI symbolic link
    /bin/mkdir -p /home/httpd/cgi-bin/qpkg
    /bin/rm -rf /home/httpd/cgi-bin/qpkg/${QNAP_QPKG}
    /bin/ln -sf ${QPKG_INSTALL_PATH}/ui /home/httpd/cgi-bin/qpkg/${QNAP_QPKG}

    # start tunnel agent
    ${QPKG_INSTALL_PATH}/bin/tunnel_agent_ctl.sh start &> /dev/null

    # start daemon
    if [ -z "$TUNNEL_AGENT_DAEMON_PID_LIST" ]; then
        if [ -f "$SETSID_BIN" ]; then
            $SETSID_BIN ${QPKG_INSTALL_PATH}/bin/tunnel_agent_daemon.sh &> /dev/null &
        else
            ${QPKG_INSTALL_PATH}/bin/tunnel_agent_daemon.sh &> /dev/null &
        fi
    fi

    ;;

  stop)
    : ADD STOP ACTIONS HERE
    # stop daemon
    # kill all tunnel agent process
    for i in "${TUNNEL_AGENT_DAEMON_PID_LIST[@]}"
    do
        if [ -f "$SETSID_BIN" ]; then
            # use bash kill instead /bin/kill for kill process group
            # tunnel daemon and inotifywait
            kill -9 -- -$i &>/dev/null
        else
            /bin/kill -9 $i &>/dev/null
        fi
    done

    # stop tunnel agent
    ${QPKG_INSTALL_PATH}/bin/tunnel_agent_ctl.sh stop

    ;;

  restart)
    $0 stop
    $0 start
    ;;

  *)
    echo "Usage: $0 {start|stop|restart}"
    exit 1
esac

exit 0