#!/bin/sh -e
# Determine the most appropriate Apport user interface (GTK/KDE/CLI) and file a
# bug with it.
#
# Copyright (C) 2009 Canonical Ltd.
# Author: Martin Pitt <martin.pitt@ubuntu.com>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.  See http://www.gnu.org/copyleft/gpl.html for
# the full text of the license.

# locate path of a particular program
find_program() {
    for p in /usr/local/bin /usr/bin /usr/local/share/apport /usr/share/apport; do
	if [ -x $p/$1 ]; then
	    RET=$p/$1
	    return
	fi
    done
    unset RET
}

# determine which UIs are available, and where
find_programs() {
    find_program "apport-cli"
    CLI="$RET"
    find_program "apport-gtk"
    GTK="$RET"
    find_program "apport-kde"
    KDE="$RET"

    # find a terminal emulator
}

#
# main
#

find_programs

export APPORT_INVOKED_AS="$0"

# check for X
if [ -z "$DISPLAY" ]; then
    if [ -x "$CLI" ] ; then
        "$CLI" "$@"
    else
        echo "\$DISPLAY is not set. You need apport-cli to make this program work." >&2
        exit 1
    fi

# do we have a running Gnome/KDE session?
elif pgrep -u `id -u` -x gnome-session >/dev/null && \
    [ -x "$GTK" ]; then
    "$GTK" "$@"
elif pgrep -u `id -u` -x ksmserver >/dev/null && \
    [ -x "$KDE" ]; then
    "$KDE" "$@"

# fall back to calling whichever is available
elif [ -x "$GTK" ]; then
    "$GTK" "$@"
elif [ -x "$KDE" ]; then
    "$KDE" "$@"
elif [ -x "$CLI" ]; then
    if [ -z "$TERM" ] && [ -x "$XTERM" ]; then
         "$XTERM" -e "$CLI" "$@"
    else
        "$CLI" "$@"
    fi

else
    echo "Neither apport-gtk, apport-kde or apport-cli are installed. Install either to make this program work." >&2
    exit 1
fi