#!/bin/sh -eu

# if not run from AppImage (eg. extracted), use default values
APPIMAGE=${APPIMAGE-none}
ARGV0=${ARGV0-$0}

DIR=`dirname $0`
export LD_LIBRARY_PATH=$DIR/lib${LD_LIBRARY_PATH:+":$LD_LIBRARY_PATH"}
# there is an issue with running_from_path() which evaluates this executable
# as being system-installed
#export PATH=$DIR/bin:$PATH
export QT_QPA_FONTDIR=$DIR/lib/fonts
export QT_PLUGIN_PATH=$DIR/lib/qt5/plugins
export QT_QPA_PLATFORM_PLUGIN_PATH=$QT_PLUGIN_PATH/platforms

usage() {
        printf "usage:\n"
        printf "\t$ARGV0 [--gui [args]]\n"
        printf "\t\tinvokes GUI\n"
        printf "\n"
        printf "\t$ARGV0 -h|--help\n"
        printf "\t\tprints this help\n"
        printf "\n"
        printf "\t$ARGV0 --appimage-help\n"
        printf "\t\tprints AppImage related options\n"
        printf "\n"
        printf "\t$ARGV0 -u|--update [args]\n"
        printf "\t\tupdates AppImage (args will be passed to appimageupdatetool)\n"
        printf "\n"
        printf "\t$ARGV0 --tool uv --help\n"
        printf "\t\tprints command-line UltraGrid help\n"
        printf "\n"
        printf "\t$ARGV0 --tool <t> [args]\n"
        printf "\t\tinvokes specified tool\n"
        printf "\t\ttool may be: $(ls $DIR/bin | tr '\n' ' ')\n"
        printf "\n"
        printf "\t$ARGV0 args\n"
        printf "\t\tinvokes command-line UltraGrid\n"
        printf "\n"
}

update_notify_days=35
## Print update hint if UG binary is older than $update_notify_days days, if $ULTRAGRID_AUTOUPDATE=1 triggers update.
handle_updates() {
        if [ $APPIMAGE = none ]; then
                return
        fi
        if [ -n ${ULTRAGRID_AUTOUPDATE-""} ]; then
                if [ $ULTRAGRID_AUTOUPDATE -eq 1 ]; then
                        $DIR/appimageupdatetool $APPIMAGE
                fi
                return
        fi
        if expr $APPIMAGE : '.*continuous' > /dev/null; then
                update_notify_days=7
        fi
        APPIMAGE_MTIME=$(stat --format=%Y $APPIMAGE)
        CURR_TIMESTAMP=$(date +%s)
        if [ $CURR_TIMESTAMP -lt $(($APPIMAGE_MTIME + $update_notify_days * 24 * 60 * 60)) ]; then
                return
        fi
        printf "UltraGrid binary older than $update_notify_days days, consider checking updates:\n"
        printf "\n"
        printf "$ARGV0 -u\n"
        printf "\t- updates AppImage\n"
        printf "$ARGV0 -u -j; $? -eq 1 && echo Update available || echo No update available\n"
        printf "\t- check for update without actually updating\n"
        printf "$ARGV0 -u -h\n"
        printf "\t- prints update options\n"
        printf "\n"
        printf "Hint: you can set environment variable ULTRAGRID_AUTOUPDATE to 1 for automatic update or 0 to suppress the above message.\n"
        printf "\n"
}

if [ $# -eq 0 -o x"${1-}" = x"--gui" ]; then
        handle_updates
        [ $# -eq 0 ] && usage || shift
        if [ -x $DIR/bin/uv-qt ]; then
                $DIR/bin/uv-qt --with-uv $DIR/uv-wrapper.sh "$@"
        else
                echo "GUI was not compiled in!" >&2
                exit 1
        fi
elif [ x"$1" = x"--tool" ]; then
        handle_updates
        TOOL=$2
        shift 2
        $DIR/bin/$TOOL "$@"
elif [ x"$1" = x"-h" -o x"$1" = x"--help" ]; then
        usage
        exit 0
elif [ x"$1" = x"-u" -o x"$1" = x"--update" ]; then
        shift
        unset LD_LIBRARY_PATH
        touch $APPIMAGE # update AppImage mtime to avoid update notices if there are no updates avalable but were checked for
        $DIR/appimageupdatetool ${1+"$@" }$APPIMAGE
else
        handle_updates
        $DIR/uv-wrapper.sh "$@"
fi

exit $?