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# -*- coding: utf-8 -*- |
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import json |
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import os |
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from babel.core import default_locale |
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import typing |
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if typing.TYPE_CHECKING: |
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from tracim_backend.config import CFG |
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TRANSLATION_FILENAME = 'backend.json' |
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DEFAULT_FALLBACK_LANG = 'en' |
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class Translator(object): |
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""" |
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Get translation from json file |
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""" |
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def __init__(self, app_config: 'CFG', default_lang: str = None, fallback_lang: str = None): # nopep8 |
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self.config = app_config |
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if not fallback_lang: |
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fallback_lang = DEFAULT_FALLBACK_LANG |
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self.fallback_lang = fallback_lang |
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if not default_lang: |
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default_lang = fallback_lang |
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self.default_lang = default_lang |
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def _get_json_translation_lang_filepath(self, lang: str) -> typing.Optional[str]: # nopep8 |
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i18n_folder = self.config.BACKEND_I18N_FOLDER |
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lang_filepath = os.path.join(i18n_folder, lang, TRANSLATION_FILENAME) |
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if not os.path.isdir(self.config.BACKEND_I18N_FOLDER): |
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return None |
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else: |
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return lang_filepath |
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def _get_translation_from_file(self, filepath: str) -> typing.Optional[typing.Dict[str, str]]: # nopep8 |
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try: |
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with open(filepath) as file: |
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trads = json.load(file) |
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return trads |
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except Exception: |
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return None |
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def _get_translation(self, lang: str, message: str) -> typing.Tuple[str, bool]: |
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try: |
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translation_filepath = self._get_json_translation_lang_filepath(lang) # nopep8 |
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translation = self._get_translation_from_file(translation_filepath) |
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if message in translation and translation[message]: |
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return translation[message], True |
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except Exception: |
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pass |
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return message, False |
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def get_translation(self, message: str, lang: str = None) -> str: |
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""" |
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Return translation according to lang |
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""" |
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if not lang: |
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lang = self.default_lang |
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if lang != self.fallback_lang: |
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new_trad, trad_found = self._get_translation(lang, message) |
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if trad_found: |
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return new_trad |
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new_trad, trad_found = self._get_translation(self.fallback_lang, message) |
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if trad_found: |
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return new_trad |
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return message |
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def get_locale(): |
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# TODO - G.M - 27-03-2018 - [i18n] Reconnect true internationalization |
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return default_locale('LC_TIME') |
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tracim /
tracim_v2
