# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

# Versioning is output of nmrPipe -help

inherit eutils

DESCRIPTION="Spectral visualisation, analysis and Fourier processing"
HOMEPAGE="http://spin.niddk.nih.gov/bax/software/NMRPipe/"
SRC_URI="
	NMRPipeX.tZ
	valpha_all.tar
	talos.tZ
	dyn.tZ
	acme.tar.Z
	binval.com
	install.com"

SLOT="0"
LICENSE="as-is"
# Right now, precompiled executables are only available for Linux on the
# x86 architecture. The maintainer chose to keep the sources closed, but
# says he will gladly provide precompiled executables for other platforms
# if there are such requests.
KEYWORDS="-* ~amd64 ~x86"
IUSE=""

RESTRICT="fetch"

DEPEND="app-shells/tcsh"
RDEPEND="${DEPEND}
	app-editors/nedit
	dev-lang/tk
	dev-tcltk/blt
	sys-libs/libtermcap-compat
	sys-libs/ncurses
	x11-libs/libX11
	amd64? (
		app-emulation/emul-linux-x86-baselibs
		app-emulation/emul-linux-x86-xlibs
	)
	x86? ( x11-libs/xview )"

S="${WORKDIR}"
NMRBASE="/opt/${PN}"
ENMRBASE="${EPREFIX}/${NMRBASE}"

pkg_nofetch() {
	einfo "Please visit:"
	einfo "\t${HOMEPAGE}"
	einfo
	einfo "Contact the author, then download the following files:"
	for i in ${A}; do
		einfo "\t${i}"
	done
	einfo
	einfo "Place the downloaded files in your distfiles directory:"
	einfo "\t${DISTDIR}"
}

src_unpack() {
	# The installation script will unpack the package. We just provide symlinks
	# to the archive files, ...
	for i in valpha_all.tar talos.tZ NMRPipeX.tZ dyn.tZ acme.tar.Z; do
		ln -s "${DISTDIR}"/${i} ${i}
	done
	# ... copy the installation scripts ...
	cp "${DISTDIR}"/{binval.com,install.com} .
	# ... and make the installation scripts executable.
	chmod +x binval.com install.com

	# Unset DISPLAY to avoid the interactive graphical test.
	# This just unpacks the stuff
	env DISPLAY="" csh ./install.com +type linux9 +dest "${S}"/NMR || die

	epatch "${FILESDIR}"/${PV}-lib.patch

	mv -v nmrbin.linux9/nmr{W,w}ish || die
}

src_install() {
	use prefix || ED="${D}"
	cat >> "${T}"/nmrWish <<- EOF
	#!/bin/csh -f
	setenv NMRBIN \${NMRBASE}/bin/
	setenv NMRLIB \${NMRBIN}/lib
	setenv AUXLIB \${NMRBIN}/openwin/lib
	setenv TCLPATH \${NMRBASE}/com
	setenv TCL_LIBRARY \${NMRBASE}/nmrtcl/tcl8.4
	setenv TK_LIBRARY \${NMRBASE}/nmrtcl/tk8.4
	setenv BLT_LIBRARY \${NMRBASE}/nmrtcl/blt2.4
	setenv NMRPIPE_TCL_LIB \${NMRBASE}/nmrtcl/tcl8.4
	setenv NMRPIPE_TK_LIB \${NMRBASE}/nmrtcl/tk8.4
	setenv NMRPIPE_BLT_LIB \${NMRBASE}/nmrtcl/blt2.4

	if (!(\$?LD_LIBRARY_PATH)) then
		setenv LD_LIBRARY_PATH \${NMRLIB}:\${AUXLIB}
	else
		setenv LD_LIBRARY_PATH \${NMRLIB}:\${LD_LIBRARY_PATH}:\${AUXLIB}
	endif

	nmrwish \$*
	EOF

	# Remove the symlinks for the archives and the installation scripts.
	for i in ${A}; do
		rm ${i} || die "Failed to remove archive symlinks."
	done
	# Remove some of the bundled applications and libraries; they are provided by Gentoo instead.
#	rm -r nmrbin.linux9/{lib/{libBLT24.so,libolgx.so*,libxview.so*,*.timestamp},*timestamp,xv,gnuplot*,rasmol*,nc,nedit} \
	rm -r nmrbin.linux9/{lib/*.timestamp,*timestamp,xv,gnuplot*,rasmol*,nc,nedit} \
		nmrbin.{linux,mac,sgi6x,sol,winxp} nmruser format \
		|| die "Failed to remove unnecessary libraries."
	# As long as xview is not fixed for amd64 we do this
	use amd64 || rm nmrbin.linux9/lib/{libxview.so*,libolgx.so*}
	# Remove the initialisation script generated during the installation.
	# It contains incorrect hardcoded paths; only the "nmrInit.com" script
	# should be used.
	rm com/nmrInit.linux9.com || die "Failed to remove broken init script."
	# Remove installation log files.
	rm README_NMRPIPE_USERS *.log || die "Failed to remove installation log."
	# Remove unused binaries
	rm talos/bin/TALOS.{linux,mac,sgi6x,winxp} pdb/misc/addSeg || die

	# Set the correct path to NMRPipe in the auxiliary scripts.
	for i in $(find com/ dynamo/surface/misc/ nmrtxt/ talos/misc -type f); do
		sed -e "s%/u/delaglio%${ENMRBASE}%" -i ${i} || die \
			"Failed patching scripts."
	done
	sed -i "s:${WORKDIR}:${ENMRBASE}:g" com/font.com || die

	sed \
		-e "s:/opt/nmrpipe:${EPREFIX}/opt/nmrpipe:g" \
		"${FILESDIR}"/env-${PN}-new \
		> env-${PN}-new
	newenvd env-${PN}-new 40${PN} || die "Failed to install env file."

	insinto ${NMRBASE}
	doins -r * || die "Failed to install application."

	dosym nmrbin.linux9 ${NMRBASE}/bin || die \
		"Failed to symlink binaries."

	# fperms does not chmod nmrwish
#	fperms -v 775 ${NMRBASE}/{talos/bin,nmrbin.linux9,com,dynamo/tcl}/* || die
	chmod -c 775 "${ED}"/${NMRBASE}/{talos/bin,nmrbin.linux9,com,dynamo/tcl}/* || die

	exeinto ${NMRBASE}/nmrbin.linux9
	doexe "${T}"/nmrWish || die
}

#pkg_postinst() {
#	ewarn "Before using NMRPipe applications, users must source the following"
#	ewarn "csh script, which will set the necessary environment variables:"
#	ewarn "\t${NMRBASE}/com/nmrInit.com"
#	ewarn
#	ewarn "Be aware that this script redefines the locations of the Tcl"
#	ewarn "libraries. This could break other non-NMRPipe Tcl applications"
#	ewarn "run in the same session."
#	ewarn
#	ewarn "Using Dynamo does not require running an additional initialisation"
#	ewarn "script. The necessary environment variables should already be set."
#}