#!/bin/sh -eu

APPNAME=uv-qt.app
DIR=$(cd $(dirname $0)/../..; pwd)

if [ $(expr x$0 : x/) -eq 0 ]; then
        echo "Cannot update when not running with an absolute path!" 1>&2
        exit 1
fi

if [ $(expr x$0 : x/Volumes) -gt 0 ]; then
        echo "Refusing update of mounted image!" 1>&2
        exit 1
fi

if [ $(basename $DIR) != $APPNAME ]; then
        echo "Application name is not ending with $APPNAME" 1>&2
        exit 1
fi

UPDATER_DIR=$(mktemp -d /tmp/ug-updater.XXXXXXXX)
cd $UPDATER_DIR

curl -LO https://github.com/CESNET/UltraGrid/releases/download/nightly/UltraGrid-nightly.dmg

mkdir mnt
hdiutil mount -mountpoint mnt *dmg

rm -rf $DIR
cp -r mnt/$APPNAME $DIR

umount mnt

cd -
rm -rf $UPDATER_DIR