#!/usr/bin/env ruby

# Copyright (C) 2007-2010 Martin A. Hansen.

# This program 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.

# 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

# http://www.gnu.org/copyleft/gpl.html

# >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

# This program is part of the Biopieces framework (www.biopieces.org).

# >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> DESCRIPTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

# Bins values to a specfied key from records in the stream.

# >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<


require 'maasha/biopieces'

casts = []
casts << {:long=>'key',      :short=>'k', :type=>'string', :mandatory=>true, :default=>nil, :allowed=>nil, :disallowed=>nil}
casts << {:long=>'bin_size', :short=>'b', :type=>'uint',   :mandatory=>true, :default=>10,  :allowed=>nil, :disallowed=>'0'}

options = Biopieces.options_parse(ARGV, casts)

Biopieces.open(options[:stream_in], options[:stream_out]) do |input, output|
  input.each_record do |record|
    if record[options[:key].to_sym]
      record[(options[:key] + "_BIN").to_sym] = (record[options[:key].to_sym].to_i / options[:bin_size]) * options[:bin_size]
    end

    output.puts record
  end
end


# >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<


__END__