#!/bin/sh
#
# 2012-2013 Nico Schottelius (nico-cdist at schottelius.org)
# 2013 Daniel Heule (hda at sfs.biz)
#
# 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/>.
#
#

state_should="$(cat "$__object/parameter/state")"
state_is=$(cat "$__object/explorer/state")
target_runlevel="$(cat "$__object/parameter/target_runlevel")"

# Short circuit if nothing is to be done
[ "$state_should" = "$state_is" ] && exit 0

os=$(cat "$__global/explorer/os")
os_version=$(cat "$__global/explorer/os_version")
name="$__object_id"

case "$state_should" in
    present)
        case "$os" in
            archlinux)
                echo "systemctl enable \"$name\""
            ;;
            debian)
                case "$os_version" in
                    [1-7]*)
                        echo "update-rc.d \"$name\" defaults >/dev/null"
                    ;;
                    8*)
                        echo "systemctl enable \"$name\""
                    ;;
                    *)
                        echo "Unsupported version $os_version of $os" >&2
                        exit 1
                    ;;
                esac
            ;;

            gentoo)
                echo rc-update add \"$name\" \"$target_runlevel\"
            ;;

            amazon|centos|fedora|owl|redhat|suse)
                echo chkconfig \"$name\" on
            ;;

            openwrt)
                # 'enable' can be successful and still return a non-zero exit
                # code, deal with it by checking for success ourselves in that
                # case (the || ... part).
                echo "/etc/init.d/\"$name\" enable || [ -f /etc/rc.d/S??\"$name\" ]"
            ;;

            ubuntu)
                echo "update-rc.d \"$name\" defaults >/dev/null"
            ;;

            *)
               echo "Unsupported os: $os" >&2
               exit 1
            ;;
        esac
    ;;

    absent)
        case "$os" in
            archlinux)
                echo "systemctl disable \"$name\""
            ;;
            debian|ubuntu)
                echo update-rc.d -f \"$name\" remove
            ;;

            gentoo)
                echo rc-update del \"$name\"  \"$target_runlevel\"
            ;;

            centos|fedora|owl|redhat|suse)
                echo chkconfig \"$name\" off
            ;;

            openwrt)
                echo "\"/etc/init.d/$name\" disable"
            ;;

            *)
               echo "Unsupported os: $os" >&2
               exit 1
            ;;
        esac
 
    ;;

    *)
        echo "Unknown state: $state_should" >&2
        exit 1
    ;;
esac
