#!/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"""

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

from gen_web_gettext import create_gettext_js
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)
            elif filename.endswith(".in"):
                call(["intltool-extract", "--quiet", "--type=gettext/ini", filepath])
                to_translate.append(filepath + ".h")
            elif filename.endswith(".ui"):
                call(["intltool-extract", "--quiet", "--type=gettext/glade", filepath])
                to_translate.append(filepath + ".h")

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)

# Update web js gettext
create_gettext_js(WEBUI_JS_DIR)

print("Created %s and updated gettext.js" % POT_FILEPATH)