"""
Coordinate conversion utilities for KiCad.

Stub implementation to fix import issues.
"""

from typing import Tuple, Union


class CoordinateConverter:
    """Converts between different coordinate systems in KiCad."""
    
    def __init__(self):
        self.scale_factor = 1.0
    
    def to_kicad_units(self, mm: float) -> float:
        """Convert millimeters to KiCad internal units."""
        return mm * 1e6  # KiCad uses nanometers internally
    
    def from_kicad_units(self, units: float) -> float:
        """Convert KiCad internal units to millimeters."""
        return units / 1e6


def validate_position(x: Union[float, int], y: Union[float, int]) -> bool:
    """Validate if a position is within reasonable bounds."""
    # Basic validation - positions should be reasonable
    max_coord = 1000  # mm
    return abs(x) <= max_coord and abs(y) <= max_coord