# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/games-fps/duke3d-data/duke3d-data-1.0.ebuild,v 1.5 2010/04/26 11:55:23 fauli Exp $

EAPI=2

inherit cdrom eutils games subversion

DESCRIPTION="Duke Nukem: Nuclear Winter data files"
HOMEPAGE="http://www.3drealms.com/
	http://hrp.duke4.net/"
SRC_URI=""

ESVN_REPO_URI="http://svn.eduke32.com/nw_plus/"
ESVN_PROJECT="nw_plus"

LICENSE="as-is"
SLOT="0"
KEYWORDS="amd64 ~x86"
PROPERTIES="interactive"
IUSE="textures"

DEPEND="textures? ( app-arch/zip
		dev-util/bsdiff
		dev-vcs/subversion
		games-fps/eduke32[utils] )"
RDEPEND="games-fps/duke3d-data"

S="${WORKDIR}/nw_plus"
dir="${WORKDIR}/nwinter"

# Rename all files in current directory to have a lowercase name
function lowername() {
	for i in *; do
		NAME=$(echo ${i} | tr "[:upper:]" "[:lower:]")
		# only continue if the name is not already lowercase
		if [ "${i}" != "${NAME}" ]; then
			# skip existing files
			if [ -f "${NAME}" ]; then
				echo "file exists: ${NAME}"
			else
				mv -n "$i" "${NAME}"
			fi
		fi
	done
}

src_unpack() {
	cdrom_get_cds gamedata/nwinter.grp

	# Download files for Plus version if necessary
	use textures && subversion_src_unpack
}

src_prepare() {
	mkdir "${dir}"

	# Prefix included CON files to prevent conflicts with other expansions
	#	or with 'Plus' files
	cd "${CDROM_ROOT}"/gamedata
	for i in *.con; do
		cp "$i" "${dir}/nwinter${i%.*}.con"
	done
	cd "${dir}"
	sed -e 's/include \([^\.]*\)\.CON/include NWINTER\1\.CON/g' \
		-i nwinternwinter.con || die "sed CON include fix failed"

	# Update Plus/HRP files if necessary
	if use textures; then
		# Fix Nuclear Winter Plus directory structure
		mv "${S}"/nw_plus/* "${S}"
		# Apply map updates/fixes
		kextract "${CDROM_ROOT}"/gamedata/nwinter.grp "*.map"
		lowername
		for i in $(seq 1 8); do
			bspatch "e2l${i}.map" "${S}/nwl${i}.map" "${S}/nwl${i}.patch"
			[ -e "${S}/nwl${i}.patch" ] || die "bspatch failed"
		done
		rm -rf "${S}"/{linux_macosx,nw_plus,utils}
		rm -f "${S}"/*.{bat,ico,url,patch}
		cd "${S}"
		# Zip Nuclear Winter Plus for smaller/single file installation
		echo -e "\n>>> Preparing Nuclear Winter Plus zip file"
		zip -9 -q -r ../nw_plus.zip .
	fi
}

src_install() {
	insinto "${GAMES_DATADIR}/duke3d"

	doins "${CDROM_ROOT}"/gamedata/nwinter.grp || die "doins GRP failed"
	doins "${dir}"/nwinter*.con || die "doins CON failed"
	dodoc "${CDROM_ROOT}"/readme.txt || die "dodoc failed"

	if use textures; then
		doins "${WORKDIR}/nw_plus.zip" || die "doins nw_plus failed"
		dodoc "${S}"/NWinter+_{Readme,To_Do}.txt
		newdoc "${S}"/NWINTRO.TXT nwintro.txt
	fi

	prepgamesdirs
}


pkg_postinst() {
	if ! has_version games-fps/duke3d && ! has_version games-fps/eduke32; then
		echo
		einfo "Note:  You must also install a game engine, such as games-fps/duke3d or"
		einfo "(preferably) games-fps/eduke32, in order to play Duke Nukem 3D."
		echo
	fi
}