#!/bin/sh

set -e

FILES_TO_DIVERT="
/etc/gtk-2.0/gtkrc
/etc/lightdm/lightdm-gtk-greeter.conf
/etc/plymouth/plymouthd.conf
/etc/sddm.conf.d/kde_settings.conf
/etc/xdg/compton.conf
/etc/xdg/gtk-3.0/settings.ini
/etc/xdg/kdeglobals
/etc/xdg/kickoffrc
/etc/xdg/konsolerc
/etc/xdg/kscreenlockerrc
/etc/xdg/kwinrc
/etc/xdg/menus/xfce-settings-manager.menu
/etc/xdg/plasmarc
/etc/xdg/qt5ct/qt5ct.conf
/etc/xdg/qterminal.org/qterminal.ini
/etc/xdg/xfce4/helpers.rc
/etc/xdg/xfce4/panel/default.xml
/etc/xdg/xfce4/terminal/terminalrc
/etc/xdg/xfce4/whiskermenu/defaults.rc
/etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfce4-desktop.xml
/etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfce4-keyboard-shortcuts.xml
/etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfce4-power-manager.xml
/etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfce4-session.xml
/etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfwm4.xml
/etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xsettings.xml
/etc/xdg/Thunar/uca.xml
/etc/xdg/Thunar/accels.scm
/etc/xdg/yakuakerc
" # END FILES_TO_DIVERT

setup_diversion() {
    local file="$1"
    divert_opts="--rename"
    if [ -e "$file" ]; then
	if dpkg --search "$file" >/dev/null 2>&1; then
	    # Keep original file to avoid spurious dpkg prompt
	    cp "$file" "$file.original"
	    divert_opts="--no-rename"
	fi
    fi
    dpkg-divert $divert_opts --package kali-themes \
		--divert "$file.original" \
		--add "$file"
}

case "$1" in
    install)
	# Handle upgrade from kali-defaults
	DIVERT_FILE="/etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xsettings.xml"
	if [ "$(dpkg-divert --listpackage $DIVERT_FILE)" = "kali-defaults" ]; then
	    rm -f $DIVERT_FILE
	    dpkg-divert --rename --package kali-defaults \
		--divert $DIVERT_FILE.original \
                --remove $DIVERT_FILE
	fi
	# Setup all the diversions
	for file in $FILES_TO_DIVERT; do
	    setup_diversion "$file"
	done
    ;;
    upgrade)
	# Dynamically add new diversions when required on upgrade
	for file in $FILES_TO_DIVERT; do
	    if [ -z "$(dpkg-divert --listpackage "$file")" ]; then
		setup_diversion "$file"
	    fi
	done
    ;;
esac

#DEBHELPER#