#!/usr/bin/env ruby
#
# ildusd - daemon for Dynamic DNS management using a database and the ILDUS protocol
#
# Copyright (C) 2005 Paul van Tilburg <paul@luon.net>
#
# Ildus 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 2 of the License, or (at your option)
# any later version.
#
# Ildus 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 Ildus; see the file COPYING.  If not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
# USA.

require 'getoptlong'
require 'ildus/server'

# Set the program name and version.
$0 = $0.split[-1]
Program = File.basename $0
Version = '1.1'

# Usage and version printing methods.
def print_usage
  puts <<USAGE
Usage: #{Program} [OPTION]...
Starts the Ildus #{Version} server, waits for commands from clients and
processes them.

Configuration options:
  -c, --config=CFG    use CFG as the configuration file instead of the default

Other options:
  -h, --help          display this help and exit
  -v, --version       display the version and exit
USAGE
end

def print_version
  puts "#{Program} #{Version}"
end

# Argument parsing.
cfg_file = "ildusd.conf"
opts = GetoptLong.new(
  [ '--config',  '-c', GetoptLong::REQUIRED_ARGUMENT ],
  [ '--help',    '-h', GetoptLong::NO_ARGUMENT       ],
  [ '--version', '-v', GetoptLong::NO_ARGUMENT       ]
)

begin
  opts.each do |opt, arg|
    case opt
      when "--config":  cfg_file = arg
      when "--help":    print_usage; exit 0
      when "--version": print_version; exit 0
    end
  end
rescue GetoptLong::InvalidOption, GetoptLong::MissingArgument
  print_usage; exit 1
end

# Main.

begin
  server = Ildus::Server.new(cfg_file)
  puts <<-START
#{Program} #{Version} Copyright (C) 2005 Paul van Tilburg <paul@luon.net>
Ildus comes with ABSOLUTELY NO WARRANTY; This is free software, and you
are welcome to redistribute it under certain conditions; for details see
the COPYING file.

START

  ['INT', 'TERM', 'QUIT'].each do |sig|
    Signal.trap(sig) { server.shutdown }
  end

  server.start
rescue StandardError => e
  puts "#{Program}: #{e}"
  exit 2
end