#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2005, 2006 Zuza Software Foundation
# 
# This file is part of translate.
#
# translate 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.
# 
# translate 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 translate; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#

"""Converts Gettext .po files to a TMX translation memory file"""

from translate.storage import po
from translate.storage import tmx
from translate.misc import quote
from translate.convert import convert
from translate.misc import wStringIO
import os

class po2tmx:
  def convertfile(self, inputfile, sourcelanguage='en', targetlanguage=None):
    """converts a .po file to TMX file"""
    thepofile = inputfile
    for thepo in thepofile.elements:
      if thepo.isheader() or thepo.isblank() or thepo.isblankmsgstr() or thepo.isfuzzy():
        continue
      source = thepo.source
      translation = thepo.target
      # TODO place source location in comments
      tmxfile.addtranslation(source, sourcelanguage, translation, targetlanguage)
    return str(tmxfile)
  
  def convertfiles(self, inputfile, tmxfile, sourcelanguage='en', targetlanguage=None):
    """converts a .po file (possibly many) to TMX file"""
    thepofile = po.pofile(inputfile)
    for thepo in thepofile.units:
      if thepo.isheader() or thepo.isblank() or thepo.isblankmsgstr() or thepo.isfuzzy():
        continue
      source = thepo.source
      translation = thepo.target
      # TODO place source location in comments
      tmxfile.addtranslation(source, sourcelanguage, translation, targetlanguage)

def convertpo(inputfile, outputfile, templatefile, sourcelanguage='en', targetlanguage=None):
  """reads in stdin using fromfileclass, converts using convertorclass, writes to stdout"""
  convertor = po2tmx()
  convertor.convertfiles(inputfile, outputfile.tmxfile, sourcelanguage, targetlanguage)
  return 1

class tmxmultifile:
  def __init__(self, filename, mode=None):
    """initialises tmxmultifile from a seekable inputfile or writable outputfile"""
    self.filename = filename
    if mode is None:
      if os.path.exists(filename):
        mode = 'r'
      else:
        mode = 'w'
    self.mode = mode
#    self.multifilestyle = multifilestyle
    self.multifilename = os.path.splitext(filename)[0]
#    self.multifile = open(filename, mode)
    self.tmxfile = tmx.tmxfile()

  def openoutputfile(self, subfile):
    """returns a pseudo-file object for the given subfile"""
    def onclose(contents):
      pass
    outputfile = wStringIO.CatchStringOutput(onclose)
    outputfile.filename = subfile
    outputfile.tmxfile = self.tmxfile
    return outputfile


class TmxOptionParser(convert.ArchiveConvertOptionParser):
  def recursiveprocess(self, options):
    if not options.targetlanguage:
      raise ValueError("You must specify the target language")
    super(TmxOptionParser, self).recursiveprocess(options)
    self.output = open(options.output, 'w')
    options.outputarchive.tmxfile.setsourcelanguage(options.sourcelanguage)
    self.output.write(str(options.outputarchive.tmxfile))

def main(argv=None):
  formats = {"po": ("tmx", convertpo), ("po", "tmx"): ("tmx", convertpo)}
  archiveformats = {(None, "output"): tmxmultifile, (None, "template"): tmxmultifile}
  parser = TmxOptionParser(formats, usepots=True, usetemplates=False, description=__doc__, archiveformats=archiveformats)
  parser.add_option("-l", "--language", dest="targetlanguage", default=None, 
                    help="set target language code (e.g. af-ZA) [required]", metavar="LANG")
  parser.add_option("", "--source-language", dest="sourcelanguage", default='en', 
                    help="set source language code (default: en)", metavar="LANG")
  parser.passthrough.append("sourcelanguage")
  parser.passthrough.append("targetlanguage")
  parser.run(argv)


if __name__ == '__main__':
    main()