#!/bin/sh -e
#
# 2011 Andi Brönnimann (andi-cdist at v-net.ch)
# 2012 Nico Schottelius (nico-cdist at schottelius.org)
# 2018 Takashi Yoshi <takashi@yoshi.email>
#
# This file is part of cdist.
#
# cdist 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.
#
# cdist 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 cdist. If not, see <http://www.gnu.org/licenses/>.
#
#
# Manage packages with pkg on OpenBSD
#

os_version=$(cat "${__global}/explorer/os_version")
machine=$(cat "${__global}/explorer/machine")

if [ -f "${__object}/parameter/version" ]; then
	version=$(cat "${__object}/parameter/version")
fi

if [ -f "${__object}/parameter/flavor" ]; then
	flavor=$(cat "${__object}/parameter/flavor")
fi

# Do not show progress bar
pkgopts='-x'

name="${__object_id}"
if [ -f "${__object}/parameter/name" ]; then
	name=$(cat "${__object}/parameter/name")
fi

if [ -n "${version}" ] && [ -n "${flavor}" ]; then
	pkgid="${name}-${version}-${flavor}"
elif [ -n "${version}" ]; then
	pkgid="${name}-${version}"
elif [ -f "${__object}/parameter/flavor" ]; then
	pkgid="${name}--${flavor}"
else
	pkgid="${name}"
fi

state_should=$(cat "${__object}/parameter/state")

if [ -f "${__object}/parameter/pkg_path" ]; then
	pkg_path=$(cat "${__object}/parameter/pkg_path")
else
	has_installurl=$(cat "${__object}/explorer/has_installurl")
	if [ 'yes' != "${has_installurl}" ]; then
		# There is no default PKG_PATH, try to provide one
		pkg_path="ftp://ftp.openbsd.org/pub/OpenBSD/${os_version}/packages/${machine}/"
	fi
fi

state_is=$(cat "${__object}/explorer/pkg_state")
[ "${state_is}" = "${state_should}" ] && exit 0

case "${state_should}" in
	present)
		if [ -n "${pkg_path}" ]; then
			echo "export PKG_PATH='${pkg_path}'"
		fi

		# Use this because pkg_add doesn't properly handle errors
		cat <<EOF
status=\$(pkg_add ${pkgopts} '${pkgid}' 2>&1 || true)

if ! pkg_info -q -I 'inst:${pkgid}' | grep -q '^${name}-${version}.*${flavor}$' 2>/dev/null
then
	# We didn't find the package in the list of 'installed packages', so it failed.
	# This is necessary because pkg_add doesn't return properly

	if [ -z "\${status}" ]; then
		status='Failed to add package, uncaught exception.'
	fi
	echo "Error: \${status}" >&2
	exit 1
fi
EOF
		echo 'installed' >> "${__messages_out}"
		;;

	absent)
		# Use this because pkg_delete doesn't properly handle errors
		cat <<EOF
status=\$(pkg_delete ${pkgopts} '${pkgid}' 2>&1 || true)

if pkg_info -q -I 'inst:${pkgid}' | grep -q '^${name}-${version}.*${flavor}' 2>/dev/null
then
	# We found the package in the list of 'installed packages'.
	# This would indicate that pkg_delete failed, send the output of pkg_delete

	if [ -z "\${status}" ]; then
		status='Failed to remove package, uncaught exception.'
	fi
	echo "Error: \${status}" >&2
	exit 1
fi
EOF
		echo 'removed' >> "${__messages_out}"
		;;
	*)
		echo "Unknown state: ${state_should}" >&2
		exit 1
		;;
esac