#!/usr/bin/env ruby
# frozen_string_literal: true

#
# Copyright (c) [2022] SUSE LLC
#
# All Rights Reserved.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of version 2 of the GNU General Public License as published
# by the Free Software Foundation.
#
# 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 General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, contact SUSE LLC.
#
# To contact SUSE LLC about this file by physical or electronic mail, you may
# find current contact information at www.suse.com.

# TEMPORARY overwrite of Y2DIR to use DBus for communication with dependent yast modules

$LOAD_PATH.unshift File.expand_path("../lib", __dir__)

require "rubygems"
require "bundler/setup"
require "dinstaller/dbus/service_runner"

# Runs the service with the given name
#
# @param name [Symbol] Service name
# @see ORDERED_SERVICES
def start_service(name)
  general_y2dir = File.expand_path("../lib/dinstaller/dbus/y2dir", __dir__)
  module_y2dir = File.expand_path("../lib/dinstaller/dbus/y2dir/#{name}", __dir__)
  ENV["Y2DIR"] = "#{module_y2dir}:#{general_y2dir}"

  logger = Logger.new($stdout, progname: name.to_s)
  service_runner = DInstaller::DBus::ServiceRunner.new(name, logger: logger)
  service_runner.run
end

ORDERED_SERVICES = [:software, :users, :manager].freeze

# Starts all the services
#
# @return [Array<Integer>] PIDs
# @see ORDERED_SERVICES
def start_all_services
  ORDERED_SERVICES.map do |name|
    fork { exec("#{__FILE__} #{name}") }
    # TODO: implement a better mechanism to check whether the service is running
    sleep(1)
  end
end

if ARGV.empty?
  pids = start_all_services
  Signal.trap("SIGINT") do
    puts "Stopping all services..."
    exit
  end
  Process.wait
else
  name = ARGV[0]
  Signal.trap("SIGINT") do
    puts "Stopping #{name} service..."
    exit
  end
  start_service(name.to_sym)
end