#!/bin/sh
# @author Michael Klier <chi@chimeric.de>
# small tool to import gps track info from a garmin edge 205

GPS_DIR=/home/chi/gps
GPS_BIN=/usr/bin/gpsbabel

if [ "$UID" != "0" ]; then
    echo "ERROR: only root can run this script"
    exit 1
fi

if [ ! -n "$1" ]; then
    DATE=$(date +%Y%m%d)
else
    DATE=$1
fi

cd $GPS_DIR

$GPS_BIN -t -i garmin -f usb: -x track,start=${DATE}0001,stop=${DATE}2359 -o gpx -F ${DATE}.gpx 

if [ -f ${DATE}.gpx ]; then
    # "empty" track files contain exactly 9 lines
    if [ $(cat ${DATE}.gpx | wc -l) == "9" ]; then
        rm ${DATE}.gpx
    else
        chown chi:chi ${DATE}.gpx
    fi
fi
exit 0