#!/bin/sh
# Installer for Nexuiz 1.5 on GNU/Linux.
#confirm download
{
	printf "Welcome to the Nexuiz 1.5 for GNU/Linux installer!\nWARNING! Nexuiz's download is 178MB, so should take at least a few minutes. Really continue? "
	read dl
	dl="`echo $dl|tr 'A-Z' 'a-z'`"
	if [ "$dl" != "y" ] && [ "$dl" != "yes" ]; then
		exit
	fi
}

#make sure $installdir is global
installdir=''

#download and extract
{
	get_installdir ()
	{
		printf "Where do you want to install Nexuiz? If you do not enter anything, Nexuiz will be installed to /usr/local/games/. "
		read installdir
		if [ -z "$installdir" ]; then
			installdir="/usr/local/games/"
		fi
		if [ ! -d "$installdir" ]; then
			printf "Error! $installdir is not a directory!\n"
			get_installdir
		fi
		if [ ! -w "$installdir" ]; then
			printf "Error! You do not have write permission in $installdir!\n"
			get_installdir
		fi
		#remove trailing /
		{
			if  [ "echo ${installdir:`expr ${#installdir} - 1`}" == "/" ]; then
				installdir="${installdir:0:`expr ${#installdir} - 1`}"
			fi
		}
	}
	get_installdir
	cd $installdir
	#wget http://easynews.dl.sourceforge.net/s.../nexuiz-15.zip
	printf "Extracting archive...\n"
	unzip nexuiz-15.zip
}

#remove unneeded stuff
{
	#archive
	{
		printf "Keep 178MB downloaded archive? "
		read archive
		archive="`echo $archive|tr 'A-Z' 'a-z'`"
		if [ "$archive" != "y" ] || [ "$archive" != "yes" ]; then
			rm nexuiz-15.zip
		fi
	}
	#check CPU architecture
		if [ "`uname -m`" == "i686" ]; then
			arch="686"
			notarch="x86_64"
		elif [ "`uname -m`" == "x86_64" ]; then
			arch="x86_64"
			notarch="686"
		else
			echo "Error! Your CPU architecture is not supported by the prebuilt Nexuiz binaries. You might be able to compile Nexuiz yourself. Instructions on the WWW at http://www.alientrap.org/forum/viewtopic.php?p=353#353\n"
			exit 1
		fi
	#ask for source
	{
		printf "Keep source? "
		read source
		source="`echo $source|tr 'A-Z' 'a-z'`"
		if [ "$source" != "y" ] || [ "$source" != "yes" ]; then
			source='*source*'
		fi
	}
	#remove files
	{
		cd Nexuiz
		rm -rf *exe* *dll* *.app* "$source" "nexuiz-linux-$notarch-sdl" "nexuiz-linux-$notarch-dedicated" nexuiz-linux.sh
	}
	#remove unneeded things in binary names
	{
		mv -f nexuiz-linux-$arch-sdl nexuiz-sdl
		mv -f nexuiz-linux-$arch-dedicated nexuiz-dedicated
	}
}

#create starter scripts
{
	cd ..
	printf "#\!/bin/sh\ncd $installdir/Nexuiz\n./nexuiz-sdl \$@\n">nexuiz-sdl
	printf "#\!/bin/sh\ncd $installdir/Nexuiz\n./nexuiz-dedicated \$@\n">nexuiz-dedicated
	ln -fs nexuiz-sdl nexuiz
}

#display GGPL
{
	printf "Nexuiz license (the GGPL) will display in 3 seconds. Hit \"q\" to exit it.\n"
	sleep 3
	#for the few systems without less
	{
		whereis less>/dev/null
		if [ "$?" == "0" ]; then
			viewer="less"
		else
			viewer="more"
		fi
	}
	$viewer Nexuiz/gpl.txt
}

#leaving message
{
	case $PATH in
		*$installdir*)
			printf "Nexuiz installed! Just enter \"nexuiz\" to play Nexuiz. You can also use \"nexuiz-dedicated\" to start a dedicated server or \"nexuiz-sdl\".\n";;
		*)
			printf "Nexuiz installed! However $installdir is not in your \$PATH.\n";;
	esac
}

notroot[0:scripts]& NexuizInstaller
: bad interpreter: No such file or directoryin/sh
notroot[0:scripts]&