#!/usr/bin/env bash
# Prints info about a given pkgname

# Copyright (C) 2012 Nicolás Reynolds <fauno@parabola.nu>
# Copyright (C) 2017, 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] PKGNAMES...' "${0##*/}"
	print 'Print information from the PKGBUILD for each given package name.'
	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' "$flag" ;;
			esac
		done
	fi
	case "$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

	for _pkg in "$@"; do
		_pkgbuild="$(toru-where "$_pkg")"

		if [ -f "$_pkgbuild/PKGBUILD" ]; then
			if ! load_PKGBUILD "$_pkgbuild/PKGBUILD" 2>/dev/null; then
				warning "Errors on %s" "$_pkg"
				continue
			fi

			deps=("${depends[@]}" "${makedepends[@]}" "${checkdepends[@]}")
			repo="$(basename -- "$(dirname -- "$_pkgbuild")")"

			msg "%s/%s %s-%s" "$repo" "$_pkg" "$pkgver" "$pkgrel"
			msg2 '%s' "$pkgdesc"
			msg2 '%s' "$url"
			msg2 'Depends: %s' "${deps[*]}"
		else
			warning "%s doesn't exist" "$_pkg"
		fi
	done
}

main "$@"
