Nikolay Tatarinov
263c2fefbd
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- Introduced a new i18n module for managing translations and language normalization, supporting both Russian and English. - Updated various handlers and services to utilize the new translation functions for user-facing messages, improving user experience based on language preferences. - Enhanced error handling and response messages to be language-aware, ensuring appropriate feedback is provided to users in their preferred language. - Added tests for the i18n module to validate language detection and translation functionality. - Updated the example environment file to include a default language configuration.
38 lines
1.2 KiB
Python
38 lines
1.2 KiB
Python
"""get_lang and t(): language from Telegram user, translate by key with fallback to en."""
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from typing import TYPE_CHECKING
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import duty_teller.config as config
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from duty_teller.i18n.messages import MESSAGES
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if TYPE_CHECKING:
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from telegram import User
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def get_lang(user: "User | None") -> str:
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"""
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Normalize Telegram user language to 'ru' or 'en'.
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If user has language_code starting with 'ru' (e.g. ru, ru-RU) return 'ru', else 'en'.
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When user is None or has no language_code, return config.DEFAULT_LANGUAGE.
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"""
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if user is None or not getattr(user, "language_code", None):
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return config.DEFAULT_LANGUAGE
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code = (user.language_code or "").strip().lower()
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return "ru" if code.startswith("ru") else "en"
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def t(lang: str, key: str, **kwargs: str) -> str:
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"""
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Return translated string for lang and key; substitute kwargs into placeholders like {phone}.
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Fallback to 'en' if key missing for lang.
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"""
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lang = "ru" if lang == "ru" else "en"
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messages = MESSAGES.get(lang) or MESSAGES["en"]
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template = messages.get(key)
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if template is None:
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template = MESSAGES["en"].get(key, key)
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try:
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return template.format(**kwargs)
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except KeyError:
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return template
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