# -*-eselect-*-  vim: ft=eselect
# Copyright 1999-2009 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id: fontconfig.eselect 728 2009-11-14 21:08:28Z dirtyepic $

DESCRIPTION="Manage ghostscript font cidfmap"
AUTHOR="naota@gentoo.org"
MAINTAINER="cjk@gentoo.org"
SVN_DATE='$Date: 2009-11-14 15:08:28 -0600 (Sat, 14 Nov 2009) $'
VERSION=$(svn_date_to_version "${SVN_DATE}")

fontconfdir="${EROOT}/etc/gsfonts"
LANGS="ja ko zh_CN zh_TW"

get_targets() {
	local lang=$1
	local targets

	local bc x i=0
	bcdirs[i]="${fontconfdir}/conf.avail/${lang}/*"
	for bc in ${bcdirs[@]} ; do
		[[ -e ${bc} && ${bc} != *~ ]] && targets="${targets}\n$(basename ${bc})"
	done

	echo -ne ${targets} | sort -u
}

get_enabled() {
	local lang=$1
	local target="${fontconfdir}/conf.d/cidfmap.${lang}"
	local mapfile

	[ -e "${target}" ] || return 1

	mapfile=$(readlink ${target})
	echo $(basename ${mapfile})

	return 0
}

### list action ###

describe_list() {
	echo "List available ghostscript font config files"
}

tweak_list_item() {
	local conf=${1}
	local current=${2}
	local mark=""
	if [[ ${conf} == ${current} ]]; then
		mark="${mark} $(highlight '*')"
	fi
	echo "${conf} ${mark}"
}

do_list() {
	local n
	for lang in ${LANGS}; do
		local targets=( $(get_targets ${lang}) )
		local current=( $(get_enabled ${lang}) )
		for (( i = 0 ; i < ${#targets[@]} ; i = i + 1 )) ; do
			targets[${i}]=$(tweak_list_item ${targets[${i}]} ${current})
		done

		write_list_start \
			"Available config files for cidfmap.${lang} ($(highlight '*') is enabled):"
		write_numbered_list "${targets[@]}"
	done

	return 0
}

### enable action ###

describe_set() {
	echo "Enable specified config file"
}

describe_set_parameters() {
	echo "<language> <target>"
}

describe_set_options() {
	echo "<language> : Target language"
	echo "<target> : Target name or number (from 'list' action)"
}

do_set() {
	local bc bcdir="${fontconfdir}/conf.d"

	if [[ ${#} != 2 ]] ; then
		die -q "Usage: set [language] [config]"
	fi

	# create directory if necessary
	if [[ ! -d ${bcdir} && -w $(dirname ${bcdir}) ]] ; then
		mkdir ${bcdir} || die -q "Failed to create ${bcdir}"
	elif [[ ! -d ${bcdir} ]] ; then
		die -q "You don't have permission to create ${bcdir}"
	fi

	# make sure we have proper permissions
	[[ -w ${bcdir} ]] || \
		die -q "You don't have permission to write to ${bcdir}"

	local lang=$1
	local correct

	# make sure language is supported
	for l in ${LANGS}; do
		[[ "${lang}" == "${l}" ]] && correct=1 && break
	done
	[[ -z "${correct}" ]] && \
		die -q "Language \"${lang}\" doesn't appear to be valid!"

	target=$2
	targets=( $(get_targets "${lang}") )

	is_number "${target}" && \
		target=${targets[$(( ${target} - 1 ))]}
	[[ -z "${target}" ]] && \
		die -q "Target \"${target}\" doesn't appear to be valid!"

	# what form is the argument in?
	case "${target}" in
		# absolute path
		/*)
			file="${EROOT}/${target}"
			;;
		# relative path
		*/*)
			file="${EROOT}/${PWD}/${target}"
			;;
		# no path
		*)
			# CWD
			if [[ -f ${target} ]] ; then
				file="${EROOT}/${PWD}/${target}"
			# assume ${fontconfdir}/conf.avail/${lang}
			else
				file="${fontconfdir}/conf.avail/${lang}/${target}"
			fi
			;;
	esac

	# does it exist?
	if [[ ! -e ${file} ]] ; then
		write_error_msg "${file} doesn't exist"
		return 1
	fi

	local cidfmap="${bcdir}"/cidfmap.${lang}
	# finally, create the symlink
	ln -sf "${file}" "${cidfmap}" || \
		die -q "Failed to create symlink from '${file}' to '${cidfmap}'"
}