#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright (C) 2011-2013 Calum Lind <calumlind@gmail.com>
# Copyright (C) 2009 Andrew Resch <andrewresch@gmail.com>
#
# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
# the additional special exception to link portions of this program with the OpenSSL library.
# See LICENSE for more details.
#

"""Parses Python and Javascript code for translation strings to create the 'deluge.pot' template for translators"""

from __future__ import print_function, unicode_literals

import os
import re
from datetime import datetime
from subprocess import call

from version import get_version

# Paths to exclude
EXCLUSIONS = ['deluge/scripts', 'deluge/i18n', 'deluge/tests']
WEBUI_JS_DIR = 'deluge/ui/web/js/deluge-all'
WEBUI_RENDER_DIR = 'deluge/ui/web/render'
INFILES_LIST = 'infiles.list'
POT_FILEPATH = os.path.join('deluge', 'i18n', 'deluge.pot')

RE_EXC_PLUGIN_BUILD = re.compile('deluge\\/plugins\\/.*\\/build')

xgettext_cmd = [
    'xgettext',
    '--from-code=UTF-8',
    '-kN_:1',
    '-f%s' % INFILES_LIST,
    '-o%s' % POT_FILEPATH,
    '--package-name=%s' % 'Deluge',
    '--copyright-holder=%s' % 'Deluge Team',
    '--package-version=%s' % get_version(prefix='deluge-', suffix='.dev0'),
    '--msgid-bugs-address=%s' % 'http://deluge-torrent.org',
]

to_translate = []
for (dirpath, dirnames, filenames) in os.walk('deluge'):
    for filename in filenames:
        if dirpath not in EXCLUSIONS and not RE_EXC_PLUGIN_BUILD.match(dirpath):
            filepath = os.path.join(dirpath, filename)
            if os.path.splitext(filepath)[1] in ('.py', '.glade'):
                to_translate.append(filepath)
            else:
                if filename.endswith('.xml.in'):
                    gtxt_type = 'gettext/xml'
                elif filename.endswith('.in'):
                    gtxt_type = 'gettext/ini'
                elif filename.endswith('.ui'):
                    gtxt_type = 'gettext/glade'
                else:
                    continue
                call(['intltool-extract', '--quiet', '--type=%s' % gtxt_type, filepath])
                filepath += '.h'
            to_translate.append(filepath)

with open(INFILES_LIST, 'w') as f:
    for line in to_translate:
        f.write(line + '\n')

# Create pot file from file list
call(xgettext_cmd)

# find javascript files
js_to_translate = []
for (dirpath, dirnames, filenames) in os.walk(WEBUI_JS_DIR):
    for filename in filenames:
        if os.path.splitext(filename)[1] == '.js':
            js_to_translate.append(os.path.join(dirpath, filename))

# find render html files
for (dirpath, dirnames, filenames) in os.walk(WEBUI_RENDER_DIR):
    for filename in filenames:
        if os.path.splitext(filename)[1] == '.html':
            js_to_translate.append(os.path.join(dirpath, filename))

with open(INFILES_LIST, 'w') as f:
    for line in js_to_translate:
        f.write(line + '\n')

# Force xgettext language to parse javascript and update pot file
# Note: For javascript files xgettext will parse comments, so single apostrophes or quotes are
# flagged as a 'warning: untermined string'. Either ignore warning or edit javascript comment.
call(xgettext_cmd + ['--language=Python', '-j'])

# Replace YEAR and PACKAGE in the copyright message
with open(POT_FILEPATH, 'r') as f:
    lines = f.readlines()
with open(POT_FILEPATH, 'w') as f:
    for line in lines:
        if 'YEAR' in line:
            line = line.replace('YEAR', str(datetime.now().year))
        elif 'PACKAGE' in line:
            line = line.replace('PACKAGE', 'Deluge')
        f.write(line)

# Clean up temp files
os.remove(INFILES_LIST)
for filepath in to_translate:
    if filepath.endswith('.h'):
        os.remove(filepath)

print('Created %s' % POT_FILEPATH)