from typing import Any, Optional, TypeVar, Generic
from pydantic import Field
from pydantic import BaseModel

from exceptions import ApiException


T = TypeVar('T')

class ApiResponse(BaseModel, Generic[T]):
    """Standard API response model matching Node.js implementation."""
    
    data: Optional[T] = Field(default=None, description="Response data")
    error: Optional[Any] = Field(default=None, description="Error details")
    message: Optional[str] = Field(default=None, description="Response message")
    
    @classmethod
    def from_api_exception(cls, exception: ApiException) -> dict:
        """Create an API response from an API exception."""
        import traceback
        return cls(
            data=None,
            message=exception.message,
            error=traceback.format_exc() if exception else None
        ).model_dump(exclude_none=True)