#!/bin/sh
#
# Copyright (C) 2012, 2014, 2016, 2019  Etersoft
# Copyright (C) 2012, 2014, 2016, 2019  Vitaly Lipatov <lav@etersoft.ru>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#

load_helper epm-query

__epm_info_rpm_low()
{
	if [ -n "$pkg_files" ] ; then
		docmd rpm -qip $pkg_files
	fi
	[ -z "$pkg_names" ] && return
	is_installed $pkg_names && docmd rpm -qi $pkg_names && return
}

__epm_info_by_pkgtype()
{
	[ -n "$pkg_files" ] || return 1

	case $(get_package_type $pkg_files) in
		rpm)
			__epm_info_rpm_low && return
			;;
		deb)
			docmd dpkg -I $pkg_files
			;;
		*)
			return 1
			;;
	esac
}

__epm_info_by_pmtype()
{
case $PMTYPE in
	apt-dpkg)
		if [ -n "$pkg_files" ] ; then
			docmd dpkg -I $pkg_files
		fi
		[ -z "$pkg_names" ] && return
		is_installed $pkg_names && docmd dpkg -p $pkg_names && return
		docmd apt-cache show $pkg_names
		;;
	aptitude-dpkg)
		if [ -n "$pkg_files" ] ; then
			docmd dpkg -I $pkg_files
		fi
		[ -z "$pkg_names" ] && return
		docmd aptitude show $pkg_names
		;;
	*-rpm)
		__epm_info_rpm_low && return
		case $PMTYPE in
			apt-rpm)
				docmd apt-cache show $pkg_names
				;;
			packagekit)
				docmd pkcon get-details $pkg_names
				;;
			yum-rpm)
				docmd yum info $pkg_names
				;;
			urpmi-rpm)
				docmd urpmq -i $pkg_names
				;;
			dnf-rpm)
				docmd dnf info $pkg_names
				;;
			zypper-rpm)
				docmd zypper info $pkg_names
				;;
			*)
				warning "Unknown command for $PMTYPE"
				;;
		esac
		;;
	packagekit)
		# TODO: get-details-local
		docmd pkcon get-details $pkg_names
		;;
	pacman)
		is_installed $pkg_names && docmd pacman -Qi $pkg_names && return
		docmd pacman -Si $pkg_names
		;;
	aura)
		is_installed $pkg_names && docmd pacman -Qi $pkg_names && return
		docmd aura -Ai $pkg_names
		;;
	npackd)
		# FIXME: --version=
		docmd npackdcl info --package=$pkg_names
		;;
	conary)
		is_installed $pkg_names && docmd conary query $pkg_names --info && return
		docmd conary repquery $pkg_names --info
		;;
	emerge)
		assure_exists equery
		docmd equery meta $pkg_names
		docmd equery which $pkg_names
		docmd equery uses $pkg_names
		docmd equery size $pkg_names
		;;
	slackpkg)
		docmd /usr/sbin/slackpkg info $pkg_names
		;;
	opkg)
		docmd opkg info $pkg_names
		;;
	pkgng)
		docmd pkg info $pkg_names
		;;
	xbps)
		docmd xbps-query --show $pkg_names
		;;
	homebrew)
		docmd brew info $pkg_names
		;;
	aptcyg)
		docmd apt-cyg show $pkg_names
		;;
	winget)
		docmd winget show $pkg_names
		;;
	appget)
		docmd appget view $pkg_names
		;;
	*)
		fatal "Have no suitable command for $PMTYPE"
		;;
esac
}


# TODO: separate to _files and _names parts
# implement _files part per package, not by PMTYPE (see filelist)
epm_info()
{

# if possible, it will put pkg_urls into pkg_files or pkg_names
if [ -n "$pkg_urls" ] ; then
    load_helper epm-download
    __handle_pkg_urls_to_checking
fi

[ -n "$pkg_filenames" ] || fatal "Info: package name is missed"

__epm_info_by_pkgtype || __epm_info_by_pmtype

local RETVAL=$?

# TODO: reinvent
[ -n "$to_remove_pkg_files" ] && rm -fv $to_remove_pkg_files
[ -n "$to_remove_pkg_files" ] && rmdir -v $(dirname $to_remove_pkg_files | head -n1) 2>/dev/null

return $RETVAL
}