#
# Author:: Lee Jensen (<ljensen@engineyard.com>)
# Author:: AJ Christensen (<aj@chef.io>)
# Copyright:: Copyright (c) Chef Software Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

require_relative "init"
require_relative "../../util/path_helper"

class Chef::Provider::Service::Gentoo < Chef::Provider::Service::Init

  provides :service, platform_family: "gentoo", target_mode: true

  def load_current_resource
    supports[:status] = true if supports[:status].nil?
    supports[:restart] = true if supports[:restart].nil?

    @found_script = false
    super

    @current_resource.enabled(
      TargetIO::Dir.glob("/etc/runlevels/**/#{Chef::Util::PathHelper.escape_glob_dir(@current_resource.service_name)}").any? do |file|
        @found_script = true
        exists = ::TargetIO::File.exist? file
        readable = ::TargetIO::File.readable? file
        logger.trace "#{@new_resource} exists: #{exists}, readable: #{readable}"
        exists && readable
      end
    )
    logger.trace "#{@new_resource} enabled: #{@current_resource.enabled}"

    @current_resource
  end

  def define_resource_requirements
    requirements.assert(:all_actions) do |a|
      a.assertion { ::TargetIO::File.exist?("/sbin/rc-update") }
      a.failure_message Chef::Exceptions::Service, "/sbin/rc-update does not exist"
      # no whyrun recovery -t his is a core component whose presence is
      # unlikely to be affected by what we do in the course of a chef run
    end

    requirements.assert(:all_actions) do |a|
      a.assertion { @found_script }
      # No failure, just informational output from whyrun
      a.whyrun "Could not find service #{@new_resource.service_name} under any runlevel"
    end
  end

  def enable_service
    shell_out!("/sbin/rc-update add #{@new_resource.service_name} default")
  end

  def disable_service
    shell_out!("/sbin/rc-update del #{@new_resource.service_name} default")
  end
end
