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import json
import os
from typing import Dict, Optional
from pydantic import BaseModel, Field, PrivateAttr, ValidationError, model_validator
class I18N(BaseModel):
_translations: Dict[str, Dict[str, str]] = PrivateAttr()
language: Optional[str] = Field(
default="en",
description="Language used to load translations",
)
@model_validator(mode="after")
def load_translation(self) -> "I18N":
"""Load translations from a JSON file based on the specified language."""
try:
dir_path = os.path.dirname(os.path.realpath(__file__))
prompts_path = os.path.join(
dir_path, f"../translations/{self.language}.json"
)
with open(prompts_path, "r") as f:
self._translations = json.load(f)
except FileNotFoundError:
raise ValidationError(
f"Translation file for language '{self.language}' not found."
)
except json.JSONDecodeError:
raise ValidationError(f"Error decoding JSON from the prompts file.")
if not self._translations:
self._translations = {}
return self
def slice(self, slice: str) -> str:
return self.retrieve("slices", slice)
def errors(self, error: str) -> str:
return self.retrieve("errors", error)
def tools(self, error: str) -> str:
return self.retrieve("tools", error)
def retrieve(self, kind, key) -> str:
try:
return self._translations[kind][key]
except:
raise ValidationError(f"Translation for '{kind}':'{key}' not found.")
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