# -*- coding: utf-8 -*-
# Part of Odoo. See LICENSE file for full copyright and licensing details.

import tarfile
import tempfile

from odoo import api, fields, models, tools, _
from odoo.exceptions import UserError


class BaseUpdateTranslations(models.TransientModel):
    _name = 'base.update.translations'
    _description = 'Update Translations'

    @api.model
    def _get_languages(self):
        return self.env['res.lang'].get_installed()


    lang = fields.Selection(_get_languages, 'Language', required=True)

    @api.model
    def _get_lang_name(self, lang_code):
        lang = self.env['res.lang']._lang_get(lang_code)
        if not lang:
            raise UserError(_('No language with code "%s" exists', lang_code))
        return lang.name

    def act_update(self):
        with tempfile.NamedTemporaryFile() as buf:
            tools.trans_export(self.lang, ['all'], buf, 'tgz', self._cr)
            buf.seek(0)
            tar = tarfile.open(fileobj=buf)
            for file_info in tar:
                module_file = tar.extractfile(file_info)
                tools.trans_load_data(self._cr, module_file, 'po', self.lang, create_empty_translation=True)
            tar.close()
        return {'type': 'ir.actions.act_window_close'}