#!/usr/bin/env bash
# Locates a PKGBUILD dir on toru's path cache

# Copyright (C) 2012 Nicolás Reynolds <fauno@parabola.nu>
# Copyright (C) 2024 Luke T. Shumaker <lukeshu@parabola.nu>
#
# License: GNU GPLv3+
#
# This program 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.
#
# This program 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

. "$(librelib messages)"
. "$(librelib conf)"

usage() {
	print 'Usage: %s [OPTIONS] PKGNAME' "${0##*/}"
	print 'Resolve a package name to a PKGBUILD location.'
	echo
	print 'Options:'
	flag \
		'-h, --help' 'Show this message'
}

main() {
	local args mode=run
	if ! args="$(getopt -n "${0##*/}" -o 'h' -l 'help' -- "$@")"; then
		mode=errusage
	else
		eval "set -- $args"
		local flag
		while true; do
			flag=$1
			shift
			case "$flag" in
				-h | --help) mode=usage ;;
				--) break ;;
				*) panic 'unhandled flag: %q' "$flag" ;;
			esac
		done
		if [[ $mode == run && $# -ne 1 ]]; then
			gnuerror 'expected 1 non-flag argument, got %d' "$#"
			mode=errusage
		fi
	fi
	case "$mode" in
		errusage)
			print "Try '%s --help' for more information." "${0##*/}" >&2
			return $EXIT_INVALIDARGUMENT
			;;
		usage)
			usage
			return $EXIT_SUCCESS
			;;
		run) : ;;
		*) panic 'invalid mode: %q' "$mode" ;;
	esac

	load_conf libretools.conf TORUPATH || exit

	tcamgr get "${TORUPATH}/paths.tch" "$1" 2>/dev/null || echo ""
}

main "$@"
