# Functions for parsing, validating, and retrieving metadata for ProteanOS
#
# Copyright (C) 2012, 2019-2020 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}'([1-9][0-9]*:)?'
_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=${_OB_VERSION_RE_PROTEANOS}'(-[0-9]+)?'
_OB_VERSION_RE_PROTEANOS=${_OB_VERSION_RE_PROTEANOS}'(\+[a-z0-9]+~[1-9][0-9]*)?'
_OB_VERSION_RE_PROTEANOS=${_OB_VERSION_RE_PROTEANOS}'(~bpu[1-9][0-9]*'
_OB_VERSION_RE_PROTEANOS=${_OB_VERSION_RE_PROTEANOS}'\+[1-9][0-9]*)?'
_OB_VERSION_RE_PROTEANOS=${_OB_VERSION_RE_PROTEANOS}'$'

_ob_validate_source_name()
{
	local name="${1}"
	shift 1 || _ob_abort

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

	return 0
}

_ob_validate_binary_name()
{
	local name="${1}"
	shift 1 || _ob_abort

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

	return 0
}

_ob_validate_version()
{
	local version="${1}"
	shift 1 || _ob_abort

	if grep -E "${_OB_VERSION_RE_PROTEANOS}" >/dev/null 2>&1 <<-EOF
		${version}
		EOF
	then
		return 0
	else
		return 1
	fi
}

_ob_get_upstreamver()
{
	local version="${1}"
	shift 1 || _ob_abort

	printf '%s' "${version%-*}"

	return 0
}

_ob_get_distrev()
{
	local version="${1}"
	shift 1 || _ob_abort

	printf '%s' "${version##*-}"

	return 0
}

_ob_get_system_arch()
{
	cat -- "${SYSCONFDIR}/proteanos_arch" 2>/dev/null || return 1

	return 0
}

_ob_get_system_plat()
{
	cat -- "${SYSCONFDIR}/proteanos_plat" 2>/dev/null || return 1

	return 0
}

_ob_get_system_path()
{
	local path_id="${1}"
	shift 1 || _ob_abort
	local datadir=
	local pkgver=

	if [ x"${OB_TEST_DATADIR:+set}" = x'set' ]; then
		datadir="${OB_TEST_DATADIR}"
	else
		datadir="${DATADIR}"
	fi

	case "${path_id}" in
		'package-source')
			# source version
			[ ${#} -eq 2 ] || _ob_abort
			printf '/usr/src/%s_%s' "${1}" "${2}"
			;;
		'package-docs')
			# source version
			[ ${#} -eq 2 ] || _ob_abort
			printf '/usr/share/doc/%s' "${1}"
			;;
		'buildflags')
			# arch
			[ ${#} -eq 1 ] || _ob_abort
			printf '%s/opkbuild/buildflags/%s' "${datadir}" "${1}"
			;;
		'platconf')
			# [source version] plat
			if [ ${#} -eq 1 ]; then
				printf '%s/platconf/%s\n' "${datadir}" "${1}"
				return 0
			fi
			[ ${#} -eq 3 ] || _ob_abort
			# Deprecated:
			ob_parse_version -u 'pkgver' -- "${2}"
			printf '%s/platconf/%s/%s\n' "${datadir}" "${3}" "${1}"
			printf '%s/platconf/%s/%s_%s\n' "${datadir}" \
				"${3}" "${1}" "${pkgver}"
			;;
	esac

	return 0
}

_ob_validate_section()
{
	local section="${1}"
	shift 1 || _ob_abort

	case "${section}" in
		boot | dbg | dev | doc | lib | libdev | locale | share | util)
			return 0
			;;
		*)
			return 1
			;;
	esac
}

_ob_section_is_coinstallable()
{
	local sect="${1}"
	shift 1 || _ob_abort

	case "${sect}" in
		'lib')
			return 0
			;;
		*)
			return 1
			;;
	esac
}