#!/usr/bin/env ruby

# Copyright (C) 2007-2011 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 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

# Write sequence type records to FASTA files according to a specified key.

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

require 'maasha/biopieces'
require 'maasha/fasta'
require 'pp'

casts = []
casts << {:long=>'key',       :short=>'k', :type=>'string', :mandatory=>true,  :default=>nil, :allowed=>nil, :disallowed=>nil}
casts << {:long=>'dir',       :short=>'d', :type=>'dir!',   :mandatory=>true,  :default=>nil, :allowed=>nil, :disallowed=>nil}
casts << {:long=>'no_stream', :short=>'x', :type=>'flag',   :mandatory=>false, :default=>nil, :allowed=>nil, :disallowed=>nil}

options = Biopieces.options_parse(ARGV, casts)

key = options[:key].to_sym

fh_hash = {}

Biopieces.open(options[:stream_in], options[:stream_out]) do |input, output|
  input.each_record do |record|
    if record[:SEQ_NAME] and record[:SEQ] and record[key]
      seq = Seq.new_bp(record)

      if fh_hash[record[key].to_sym]
        fasta_io = fh_hash[record[key].to_sym]
      else
        fasta_file = File.join(options[:dir], record[key] + ".fasta")
        fasta_io   = Fasta.open(fasta_file, "w")
        fh_hash[record[key].to_sym] = fasta_io
      end

      fasta_io.puts seq.to_fasta
    end

    output.puts record unless options[:no_stream]
  end
end

fh_hash.each_value { |val| val.close }

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


__END__