#!/usr/bin/env ruby
#
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#
# author:  mathias gumz
# date  :  Fre 08 Aug 2003 03:16:57 CEST
# file  :  fluxstats
# about :
#
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#
#
# Copyright (c) 2003 Mathias Gumz <gumz@cs.uni-magdeburg.de>
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
#

require 'date'
require 'getoptlong'


HELP = <<END

NAME

 rbot2mirc - converts rbot-logfiles into mirc-logfiles

SYNOPSIS

 rbot2mirc [-h] [-i nickname] logfile

OPTIONS

 --help            -h    display help
 --ignore nickname -i    ignore nickname (eg bots)

AUTHOR

  mathias gumz <gumz at cs.uni-magdeburg.de>

END



def convertlog(filename, ignore)
  lastdate= ""
  IO.foreach(filename) { |line|

    date, time, chk1, chk1, mesg= line.unpack('@1a11a8aaa*')

    ho, mi, se= time.split(/:/)
    if date != lastdate then
      lastdate= date
      ye, mo, da= date.split(/\//)
          d= Date.new(ye.to_i, mo.to_i, da.to_i)
      puts "--- Log opened #{Date::ABBR_DAYNAMES[d.wday]} #{Date::ABBR_MONTHNAMES[d.month]} #{d.day} [#{ho}:#{mi}]:#{se} #{d.year}"
    end

    case mesg
    when /^@(.*)/
      msg= $1
      case msg
      when /joined channel/
        puts "[#{ho}:#{mi}] *** #{msg.sub!(/channel /, '').sub!(/joined/, '(unknown) has joined').strip!}"
      when /Quit:/
        puts "[#{ho}:#{mi}] *** #{msg.split(/:/)[1].strip!} has quit"
      when /set topic/
        puts "[#{ho}:#{mi}] *** #{msg.sub!(/set topic /, 'changes topic to').strip!}"
      when /has been kicked/
        #puts "[#{ho}:#{mi}] *** #{msg.sub!(/has beend kicked/, 'was kicked')}"
        puts "[#{ho}:#{mi}] *** #{msg.strip!}"
      when /is now known/
        puts "[#{ho}:#{mi}] *** #{msg.strip!}"
      end
    when /^<(.*?)>(.*)/
      nick, msg= $1, $2
      if nick != ignore
        puts "[#{ho}:#{mi}] <#{nick}>#{msg}"
      end
    end
  }
end

begin

  parser = GetoptLong.new
  parser.set_options(
    [ "--ignore", "-i", GetoptLong::REQUIRED_ARGUMENT ],
    [ "--help",   "-h", GetoptLong::NO_ARGUMENT ]
  )

  ignore= ""
  parser.each do |opt, arg|
    case opt
    when "--help"
      puts HELP
      exit 0
    when "--ignore"
      ignore= arg
    end
  end

  if ARGV.length < 1
    puts "need a logfile"
    exit 1
  end

  convertlog(ARGV.shift, ignore)
end
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