# Functions for parsing, validating, and retrieving metadata for ProteanOS
#
# Copyright (C) 2012 Patrick McDermott
#
# This file is part of opkbuild.
#
# opkbuild is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# opkbuild is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with opkbuild.  If not, see <http://www.gnu.org/licenses/>.

_OB_NAME_RE_PROTEANOS='^[a-z0-9][a-z0-9+.-]+$'
_OB_VERSION_RE_PROTEANOS='^'
_OB_VERSION_RE_PROTEANOS=${_OB_VERSION_RE_PROTEANOS}'[0-9a-z.~-]+'
_OB_VERSION_RE_PROTEANOS=${_OB_VERSION_RE_PROTEANOS}'(\+sip[1-9][0-9]*)?'
_OB_VERSION_RE_PROTEANOS=${_OB_VERSION_RE_PROTEANOS}'(-[1-9][0-9]*)?'
_OB_VERSION_RE_PROTEANOS=${_OB_VERSION_RE_PROTEANOS}'(\+[a-z0-9]+~[1-9][0-9]*)?'
_OB_VERSION_RE_PROTEANOS=${_OB_VERSION_RE_PROTEANOS}'$'

_ob_validate_source_name()
{
	local name=

	name="${1}"

	if echo "${name}" | grep -E "${_OB_NAME_RE_PROTEANOS}" \
			>/dev/null 2>&1; then
		case "${name}" in
			src-*)
				return 1
				;;
		esac
	else
		return 1
	fi

	return 0
}

_ob_validate_binary_name()
{
	local name=

	name="${1}"

	if echo "${name}" | grep -E "${_OB_NAME_RE_PROTEANOS}" \
			>/dev/null 2>&1; then
		case "${name}" in
			src-*)
				return 1
				;;
		esac
	else
		return 1
	fi

	return 0
}

_ob_validate_version()
{
	local version=

	version="${1}"

	echo "${version}" | grep -E "${_OB_VERSION_RE_PROTEANOS}" \
		>/dev/null 2>&1

	return ${?}
}

_ob_get_upstreamver()
{
	local version=

	version="${1}"

	echo "${version%-*}"

	return 0
}

_ob_get_distrev()
{
	local version=

	version="${1}"

	echo "${version##*-}"

	return 0
}

_ob_get_system_arch()
{
	cat "${SYSCONFDIR}/proteanos_arch"

	return 0
}

_ob_get_system_plat()
{
	cat "${SYSCONFDIR}/proteanos_plat"

	return 0
}

_ob_get_system_path()
{
	local path_id=
	local pkgver=

	path_id="${1}"
	shift 1

	case "${path_id}" in
		'package-source')
			# source version
			if [ ${#} -eq 2 ]; then
				printf '/usr/src/%s_%s' "${1}" "${2}"
			else
				return 125
			fi
			;;
		'package-docs')
			# source version
			if [ ${#} -eq 2 ]; then
				printf '/usr/share/doc/%s' "${1}"
			else
				return 125
			fi
			;;
		'buildflags')
			# arch
			if [ ${#} -eq 1 ]; then
				printf "${DATADIR}/opkbuild/buildflags/%s" "${1}"
			else
				return 125
			fi
			;;
		'platconf')
			# source version plat
			if [ ${#} -eq 3 ]; then
				ob_parse_version -u 'pkgver' "${2}"
				printf "${DATADIR}/platconf/%s/%s\n" "${3}" "${1}"
				printf "${DATADIR}/platconf/%s/%s_%s\n" "${3}" "${1}" \
					"${pkgver}"
			else
				return 125
			fi
			;;
	esac

	return 0
}