91 lines
2.8 KiB
Python
91 lines
2.8 KiB
Python
import json
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import os
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import threading
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from flask import request, has_request_context
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_thread_local = threading.local()
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_locales_dir = os.path.join(os.path.dirname(__file__), '..', '..', '..', 'locales')
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# Load language registry
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with open(os.path.join(_locales_dir, 'languages.json'), 'r', encoding='utf-8') as f:
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_languages = json.load(f)
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# Load translation files
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_translations = {}
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for filename in os.listdir(_locales_dir):
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if filename.endswith('.json') and filename != 'languages.json':
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locale_name = filename[:-5]
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with open(os.path.join(_locales_dir, filename), 'r', encoding='utf-8') as f:
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_translations[locale_name] = json.load(f)
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def set_locale(locale: str):
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"""Set locale for current thread. Call at the start of background threads."""
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_thread_local.locale = _normalize_locale(locale)
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def _normalize_locale(raw: str | None) -> str:
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if not raw:
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return 'en'
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candidates = []
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for part in raw.split(','):
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code = part.split(';')[0].strip().lower().replace('_', '-')
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if code:
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candidates.append(code)
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if '-' in code:
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candidates.append(code.split('-')[0])
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for code in candidates:
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if code in _languages or code in _translations:
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return code
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return 'en'
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def get_locale() -> str:
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if has_request_context():
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return _normalize_locale(request.headers.get('Accept-Language', 'en'))
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return getattr(_thread_local, 'locale', 'en')
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def t(key: str, **kwargs) -> str:
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locale = get_locale()
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messages = _translations.get(locale, _translations.get('en', _translations.get('zh', {})))
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value = messages
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for part in key.split('.'):
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if isinstance(value, dict):
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value = value.get(part)
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else:
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value = None
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break
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if value is None:
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value = _translations.get('en', _translations.get('zh', {}))
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for part in key.split('.'):
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if isinstance(value, dict):
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value = value.get(part)
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else:
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value = None
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break
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if value is None:
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return key
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if kwargs:
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for k, v in kwargs.items():
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value = value.replace(f'{{{k}}}', str(v))
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return value
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def get_language_instruction() -> str:
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locale = get_locale()
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lang_config = _languages.get(locale, _languages.get('en', {}))
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instruction = lang_config.get('llmInstruction', 'Please respond in English.')
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return (
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f"{instruction} Use this language for every natural-language field, report title, "
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f"section title, explanation, quote translation, generated social post, interview question, "
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f"interview answer, and reasoning text. Keep JSON keys, enum values, IDs, entity type names, "
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f"relationship type names, and code-like values in their required machine-readable format."
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)
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