# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

inherit eutils

DESCRIPTION="Maple is a symbolic algebra maths package"
HOMEPAGE="http://www.maplesoft.com/"
SRC_URI="${P}-resource1.zip"

LICENSE="maple"
SLOT="0"
KEYWORDS="~x86"
IUSE="tetex X"

DEPEND="app-arch/unzip"
RDEPEND="=virtual/jre-1.4*"

RESTRICT="fetch nostrip"
S="${WORKDIR}"

# Ebuild specific varibles
BIN_DIR="bin.IBM_INTEL_LINUX"
DESTINATION="/opt/${PN}"
DOC_DIR="doc"
OPT_DIR="opt"
SHARE_DIR="share"

pkg_nofetch() {
	einfo "Please copy the file \"Resource1.zip\" from your copy of ${P}"
	einfo "and move it to ${DISTDIR}/${A}"
}

src_unpack() {
	unpack ${A}

	# Constants in all the source JAR's
	JAREXT="manifest_zg_ia_sf.jar"
	JARSRC="\$IA_PROJECT_DIR\$/manifests"

	# Unconsistent file naming
	mv "${JARSRC}/bin.ibm_intel_linux.${JAREXT}" \
		"${JARSRC}/bin.IBM_INTEL_LINUX.${JAREXT}"
	mv "${JARSRC}/etc.${JAREXT}" "${JARSRC}/latex.${JAREXT}"
	mv "${JARSRC}/afm_unix.${JAREXT}" "${JARSRC}/afm.${JAREXT}"

	# JAR names and which type they are
	local BIN_JAR=( "bin" "bin.IBM_INTEL_LINUX" "data" "lib" "java" )
	local DOC_JAR=( "man" "readmes" )
	local SHARE_JAR=( "examples" "extern" "samples"  )

	# Extract only requested features
	if use tetex ; then
		SHARE_JAR=( ${SHARE_JAR[@]} "latex" )
	fi
	if use X ; then
		BIN_JAR=( ${BIN_JAR[@]} "afm" "X11_defaults" )
	fi

	# Extract the JAR's
	for JAR in ${BIN_JAR[@]} ; do
		extract_file ${OPT_DIR} ${JAR}
	done
	for JAR in ${DOC_JAR[@]} ; do
		extract_file ${DOC_DIR} ${JAR}
	done
	for JAR in ${SHARE_JAR[@]} ; do
		extract_file ${SHARE_DIR} ${JAR}
	done
}

src_install() {
	# Fix paths
	# Uses java-config-1 to locate a 1.4 JRE
	cd ${OPT_DIR}/bin
	sed -i -e "s:\${MAPLE_JRE_BIN}:\$(java-config-1 -o)/bin/:" maple
	sed -i -e "s:/usr/local/maple:${DESTINATION}:" maple xmaple mint
	cd ${S}

	# Configure maple
	cat << EOF > "${OPT_DIR}/${BIN_DIR}/maplesys.ini"
[user-settings]
MultiUserProfile=1
Network=0
EOF

	# Configure license
	mv "\$DAY\$/internal/bin.IBM_INTEL_LINUX/dectool" ${OPT_DIR}/${BIN_DIR}
	mkdir -p ${OPT_DIR}/license
	mv "\$DAY\$/license/Network/license.dat" ${OPT_DIR}/license || die \
		"Unable to copy license file"

	# Install documentation/
	dodoc ${DOC_DIR}/readmes/*
	doman ${DOC_DIR}/man/man1/*

	# Install everything else
	insinto ${DESTINATION}
	doins -r ${OPT_DIR}/*
	insinto /usr/share/${PN}
	doins -r ${SHARE_DIR}/*

	# Fix permissions and sym-links
	chmod -R +x ${D}/${DESTINATION}/bin*
	dosym "libgmp.so.3.3.0" "${DESTINATION}/${BIN_DIR}/libgmp.so.3"
	dosym "${DESTINATION}/${BIN_DIR}/libgmp.so.3" \
		"${DESTINATION}/${BIN_DIR}/libgmp.so"
	
	# /op/bin sym-links
	dosym "${DESTINATION}/bin/maple" "/opt/bin/maple"
	dosym "${DESTINATION}/bin/mint" "/opt/bin/mint"
	dosym "${DESTINATION}/bin/xmaple" "/opt/bin/xmaple"
}

pkg_postinst() {
	einfo "In order to use ${P} the copy must be registered"
	einfo "by running the following command as root:"
	einfo "${DESTINATION}/${BIN_DIR}/dectool SERIALNUM ${DESTINATION}/license/license.dat"
	einfo "Where SERIALNUM is valid ${P} serial number"
}

extract_file() {
		mkdir -p "${1}/${2}"
		einfo "Unpacking ${2}..."
		unzip -q "${JARSRC}/${2}.${JAREXT}" -d "${1}/${2}" || die \
			"Unable to extract ${JARSRC}/${2}.${JAREXT}"
}