#!/bin/sh

# Copyright (c) 2006 SUSE LINUX Products GmbH, Nuernberg, Germany.
# Copyright (c) 2009 Fedora Project
# This file and all modifications and additions to the pristine
# package are under the same license as the package itself.
#
# Please submit bugfixes or comments via http://bugs.opensuse.org/
#
# Anna Bernathova <anicka@novell.com> 2006
# Pavel Nemec <pnemec@novell.com> 2006
# Rex Dieter <rdieter@fedoraproject.org> 2009
#
# use proper binary (pinentry-qt, pinentry-gtk-2 or pinentry-curses) 

if [ -z "$PINENTRY_BINARY" ]; then

kde_running=
if [ -n "$KDE_FULL_SESSION" ]; then
    kde_running=1
elif [ -n "$DISPLAY" ]; then
    xprop -root | grep "^KDE_FULL_SESSION" >/dev/null 2>/dev/null
    if test $? -eq 0; then
        kde_running=1
    fi
else
    arg=
    display=
    for opt in "$@"; do
        if [ "$opt" = "--display" ]; then
            arg=1
        elif [ -n "$arg" ]; then
            display="$opt"
        else
            arg=
        fi
    done
    if [ -n "$display" ]; then
        DISPLAY="$display" xprop -root | grep "^KDE_FULL_SESSION" >/dev/null 2>/dev/null
        if test $? -eq 0; then
            kde_running=1
        fi
    fi
fi

# if KDE is detected and pinentry-qt exists, use pinentry-qt
if [ -n "$kde_running" -a -x /usr/bin/pinentry-qt ]
then
	export PINENTRY_BINARY="/usr/bin/pinentry-qt"
# otherwise test if pinentry-gtk-2 is installed
elif [ -x /usr/bin/pinentry-gtk-2 ] 
then
	export PINENTRY_BINARY="/usr/bin/pinentry-gtk-2"
# otherwise test if pinentry-qt4 is installed
elif [ -x /usr/bin/pinentry-qt4 ]
then
        export PINENTRY_BINARY="/usr/bin/pinentry-qt4"
# otherwise test if pinentry-qt exists although KDE is not detected
elif [ -x /usr/bin/pinentry-qt ]
then
	export PINENTRY_BINARY="/usr/bin/pinentry-qt"
# pinentry-curses is installed by default, test if we're in a terminal
elif [ -t 2 ]
then
	export PINENTRY_BINARY="/usr/bin/pinentry-curses"
else
	#test if gui binary is required
	for opt in "$@"; do
		if [ "x$opt" = "x--display" ]; then
		        # should not happen because of package dependencies
			echo "Please install pinentry-gui" >&2
			exit 1
		fi
	done
        export PINENTRY_BINARY="/usr/bin/pinentry-curses"
fi
fi

exec $PINENTRY_BINARY "$@"