# Copyright 1999-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

inherit eutils versionator

first_number=$(get_version_component_range 2)
letter=$(get_version_component_range 3)
second_number=$(get_version_component_range 4)

case ${letter} in
	a) upper_letter=A ;; j) upper_letter=J ;; s) upper_letter=S ;;
	b) upper_letter=B ;; k) upper_letter=K ;; t) upper_letter=T ;;
	c) upper_letter=C ;; l) upper_letter=L ;; u) upper_letter=U ;;
	d) upper_letter=D ;; m) upper_letter=M ;; v) upper_letter=V ;;
	e) upper_letter=E ;; n) upper_letter=N ;; w) upper_letter=W ;;
	f) upper_letter=F ;; o) upper_letter=O ;; x) upper_letter=X ;;
	g) upper_letter=G ;; p) upper_letter=P ;; y) upper_letter=Y ;;
	h) upper_letter=H ;; q) upper_letter=Q ;; z) upper_letter=Z ;;
	i) upper_letter=I ;; r) upper_letter=R ;;
esac

MY_PV=${first_number}${upper_letter}${second_number#p}

DESCRIPTION="design system for interactive fiction"
HOMEPAGE="http://www.inform-fiction.org/"
SRC_URI="x86? ( http://www.inform-fiction.org/I7Downloads/I7_${MY_PV}_Linux_i386.tar.gz )
	!x86? ( http://www.inform-fiction.org/I7Downloads/I7_${MY_PV}_Linux_all.tar.gz )"

# "Inform" for the core, "GPL-2" for the i7 user-interface script
LICENSE="Inform GPL-2"
SLOT="7"
#KEYWORDS="-* ~amd64 ~arm ~ppc ~s390 ~x86"
KEYWORDS="~amd64"
IUSE=""

RESTRICT="strip"

DEPEND=""
# i7 is written in perl, and uses uuidgen from e2fsprogs
RDEPEND="dev-lang/perl
	sys-fs/e2fsprogs
	games-engines/frotz
	games-engines/glulxe"

S="${WORKDIR}/inform7-${MY_PV}"

src_unpack() {
	unpack ${A}
	cd ${S}

	mkdir usr
	cd usr

	case ${ARCH} in
		amd64) IARCH=x86_64   ;;
		arm)   IARCH=armv5tel ;;
		s390)  IARCH=s390     ;; # s390x ?
		x86)   IARCH=i386     ;;
		*)     IARCH=${ARCH}
	esac

	unpack ./../inform7-common_${MY_PV}_all.tar.gz || die
	unpack ./../inform7-compilers_${MY_PV}_${IARCH}.tar.gz || die
	# We don't currently use anything from here, but a future version
	# might include more interpreters.
	unpack ./../inform7-interpreters_${MY_PV}_${IARCH}.tar.gz || die

	epatch "${FILESDIR}"/inform7-4U65-paths.patch
}

src_install() {
	cp -dpPR usr "${D}" || die
	dodoc README || die
	docinto ChangeLogs || die
	dodoc usr/share/doc/inform7/ChangeLogs/*.txt || die
	cd "${D}"/usr || die

	# Don't use the bundled interpreter binaries.  We do, however,
	# keep the bundled Inform 6 compiler, because it has some
	# modifications to work with Inform 7-generated code.
	#
	# The binaries that we do keep are unpacked into /usr/share with
	# symlinks in /usr/libexec, which is silly; move them to libexec
	# (there doesn't seem to be any need to recreate the symlinks
	# going the other way: the i7 script accesses them from libexec).
	# List the kept binaries explicitly (instead of using a wildcard)
	# so that if a future version adds more, the rmdir will fail and
	# alert the maintainer that changes (new dependencies etc) might
	# be required.
	rm -f libexec/*
	mv share/inform7/Compilers/{ni,cBlorb,inform-6.31-biplatform} libexec || die
	rmdir share/inform7/Compilers || die
	rm share/inform7/Interpreters/{dumb-frotz,dumb-glulxe} || die
	rmdir share/inform7/Interpreters || die

	# It installs README, ChangeLogs and INSTALL to
	# /usr/share/doc/inform7.  We handle README and ChangeLogs above,
	# and there's no point installing INSTALL at all.  Don't use rm
	# -rf so that if a future version adds more files, we'll get an
	# error instead of silently removing them.
	rm share/doc/inform7/README || die
	rm share/doc/inform7/INSTALL || die
	rm share/doc/inform7/ChangeLogs/*.txt || die
	rmdir share/doc/inform7/ChangeLogs || die
	rmdir share/doc/inform7 || die

	mv man share/man || die
}