#!/usr/bin/env python
#
# Copyright 2008 Zuza Software Foundation
#
# This file is part of Virtaal.
#
# 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, see <http://www.gnu.org/licenses/>.

import os
import shutil
from configparser import ConfigParser, NoSectionError


srccheckout = "mozilla"
l10ncheckout = "l10n"
product = "browser"
verbose = False


def path_neutral(path):
    """Convert a path specified using Unix path seperator into a platform path"""
    newpath = ""
    for seg in path.split("/"):
        if not seg:
            newpath = os.sep
        newpath = os.path.join(newpath, seg)
    return newpath


def process_l10n_ini(inifile):
    """Read a Mozilla l10n.ini file and process it to find the localisation
    files needed by a project
    """

    l10n = ConfigParser()
    with open(path_neutral(inifile)) as fh:
        l10n.readfp(fh)
    l10n_ini_path = os.path.dirname(inifile)

    for dir in l10n.get("compare", "dirs").split():
        frompath = os.path.join(
            l10n_ini_path, l10n.get("general", "depth"), dir, "locales", "en-US"
        )
        topath = os.path.join(l10ncheckout, "en-US", dir)
        if not os.path.exists(frompath):
            if verbose:
                print("[Missing source]: %s" % frompath)
            continue
        if os.path.exists(topath):
            if verbose:
                print("[Existing target]: %s" % topath)
            continue
        if verbose:
            print(f"{frompath} -> {topath}")
        try:
            shutil.copytree(frompath, topath)
        except OSError as e:
            print(e)

    try:
        for include in l10n.options("includes"):
            include_ini = os.path.join(
                l10n_ini_path,
                l10n.get("general", "depth"),
                l10n.get("includes", include),
            )
            if os.path.isfile(include_ini):
                process_l10n_ini(include_ini)
    except TypeError:
        pass
    except NoSectionError:
        pass


def create_option_parser():
    from argparse import ArgumentParser

    p = ArgumentParser()

    p.add_argument(
        "-s",
        "--src",
        type=str,
        dest="srcdir",
        default="mozilla",
        help="The directory containing the Mozilla l10n sources.",
    )
    p.add_argument(
        "-d",
        "--dest",
        type=str,
        dest="destdir",
        default="l10n",
        help="The destination directory to copy the en-US locale files to.",
    )
    p.add_argument(
        "-p",
        "--mozproduct",
        type=str,
        dest="mozproduct",
        default="browser",
        help="The Mozilla product name.",
    )
    p.add_argument(
        "--delete-dest",
        dest="deletedest",
        default=False,
        action="store_true",
        help="Delete the destination directory (if it exists).",
    )

    p.add_argument(
        "-v",
        "--verbose",
        dest="verbose",
        action="store_true",
        default=False,
        help="Be more noisy",
    )

    return p


if __name__ == "__main__":
    args = create_option_parser().parse_args()
    srccheckout = args.srcdir
    l10ncheckout = args.destdir
    product = args.mozproduct

    enUS_dir = os.path.join(l10ncheckout, "en-US")
    if args.deletedest and os.path.exists(enUS_dir):
        shutil.rmtree(enUS_dir)
    if not os.path.exists(enUS_dir):
        os.makedirs(enUS_dir)

    if args.verbose:
        print(
            "%s -s %s -d %s -p %s -v %s"
            % (
                __file__,
                srccheckout,
                l10ncheckout,
                product,
                args.deletedest and "--delete-dest" or "",
            )
        )
    product_ini = os.path.join(srccheckout, product, "locales", "l10n.ini")
    if not os.path.isfile(product_ini):
        # Done for Fennec
        product_ini = os.path.join(srccheckout, "locales", "l10n.ini")
    process_l10n_ini(product_ini)
