#!/bin/sh

#####################################################################
# Script to replace the standard KDE 4 start icon with Gentoo Logo 
# The logo can be downloaded here:
# http://gentoo-art.org/CONTENT/content-files/117383-gentoo-start-icon.svg
# This script is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# Author: Andrzej Kardaś
# License: GPLv3 
# The full version of the licencse can be obtainted by visiting: 
# http://www.gnu.org/licenses/gpl.html
#######################################################################

ICON=gentoo-start-icon.svg
RESOLUTION=(16x16 22x22 32x32 48x48 64x64 128x128 256x256)
URL="http://gentoo-art.org/CONTENT/content-files/117383-gentoo-start-icon.svg"
WGET="/usr/bin/wget"
MV="/bin/mv"
CP="/bin/cp"
RM="/bin/rm"

if [ "${1}" = "global" ]; then
	PATH="/usr/share/icons/"	
elif [ "${1}" = "local" ]; then
	PATH=`echo ~/.kde4/share/icons/`
else 
	echo
	echo "Usage ./kde-icon.sh local | global [theme_name] [restore]"
	echo
	echo "Examples:"
	echo "If you want to change the icons just run:"
	echo "./kde-icon.sh local OxygenRefit2-black-version"
	echo
	echo "If you want to restore old icons run:"
	echo "./kde-icon.sh local OxygenRefit2-black-version restore"
	echo
	exit 1
fi

if [ "${#}" -eq 1 ]; then
	echo "You didn't provide a theme_name I'm assuming we are changing the oxygen default icon theme"
	echo
	THEME="oxygen"
else
   THEME=${2}
fi

echo "Checking if full theme path: ${PATH}${THEME} exists" 
echo
if [ -d ${PATH}${THEME} ]; then
	echo "Path seems ok"
	echo
else
	echo "Can not find the provided path check script parameters"
	echo
	exit 1
fi

echo "Checking if you have write access to theme path"
echo
if [ -w ${PATH}${THEME} ]; then
	echo "Your rights seems ok"
	echo
else
	echo "You do not have write access to the theme path you will not be able to change the icons"	
	echo "Maybe you should run the script as root"
	echo
	exit 1
fi

if [ "${3}" == "restore" ] ; then
	echo "You requested restoration of previously stored icons"
	echo
	echo "Checking if stored copies of old icons are available and performing restore if possible"
	for i in  "${RESOLUTION[@]}";
	do
		echo processing ${PATH}${THEME}/$i/places/start-here-kde.png
		if [ -w ${PATH}${THEME}/$i/places/start-here-kde.png.bak ]; then
			if  [ -w ${PATH}${THEME}/$i/places/start-here-kde.svg ]; then
				echo "Removing svg icon: ${PATH}${THEME}/$i/places/start-here-kde.svg"
				${RM} ${PATH}${THEME}/$i/places/start-here-kde.svg
				echo
			fi
			echo "Restoring old icons"
			${MV} -f ${PATH}${THEME}/$i/places/start-here-kde.png.bak ${PATH}/${THEME}/$i/places/start-here-kde.png
			echo
		else
			echo "Can't find ${PATH}${THEME}/$i/places/start-here-kde.png.bak or you do not have write access to file"
			echo
		fi
	done
	echo "Finished"
	echo "To see the changes you need to change the icon set using KDE system settings"
	echo
else
	echo "Downloading the logo icon"
	echo
	${WGET} --output-document=${ICON} ${URL} || die "downloading of the icon failed"

	echo "Making backup of existing icons"
	echo
	for i in  "${RESOLUTION[@]}";
	do
		echo processing ${PATH}${THEME}/$i/places/start-here-kde.png
		if [ -w ${PATH}${THEME}/$i/places/start-here-kde.png ]; then
			if (${MV} -f ${PATH}${THEME}/$i/places/start-here-kde.png ${PATH}/${THEME}/$i/places/start-here-kde.png.bak) then
				echo "Storing ${PATH}${THEME}/$i/places/start-here-kde.png as ${PATH}/${THEME}/$i/places/start-here-kde.png.bak succsesfull"
				echo 
			else
				echo "There was error while storing icon ${PATH}${THEME}/$i/places/start-here-kde.png"
			fi
		else
			echo "Icon ${PATH}${THEME}/$i/places/start-here-kde.png dosn't exist or you don't have the write access to it!"
			echo "I have nothing to do here"
			echo
		fi
	done

	echo
	echo "Placing new Icon"
	echo
	for i in  "${RESOLUTION[@]}";
	do
		echo processing ${PATH}${THEME}/$i/places/start-here-kde.svg
		if (${CP} ${ICON} ${PATH}${THEME}/$i/places/start-here-kde.svg) then
			echo "Placing icon ${PATH}${THEME}/$i/places/start-here-kde.svg succsesfull"
			echo
		else
			echo "There was error while placing icon ${PATH}${THEME}/$i/places/start-here-kde.svg"
			echo
		fi
	done
	echo "I'm Removing the downloaded icon"
	${RM} -f ${ICON} 
	echo
	echo "That's all!"
	echo "To see the changes you need to change the icon set using KDE system settings"
	echo
fi