from enum import Enum, auto
from dataclasses import dataclass
from typing import Any, Optional

class DataQualityLevel(Enum):
    LOW = auto()
    MEDIUM = auto()
    HIGH = auto()
    THOROUGH = auto()

@dataclass
class ValidationResult:
    is_valid: bool = True
    quality_level: DataQualityLevel = DataQualityLevel.HIGH
    message: Optional[str] = None
    details: Any = None

@dataclass
class ValidatedQuery:
    query: str = ""
    is_valid: bool = True
    quality_level: DataQualityLevel = DataQualityLevel.HIGH

class DataQualityValidator:
    def __init__(self, *args, **kwargs):
        pass

    def validate(self, data: Any) -> ValidationResult:
        # Stub: always returns valid/high
        return ValidationResult()