/**
 * Non-linear distance scaling for better solar system visualization
 * Inner solar system gets more space, outer solar system is compressed
 */

export function scaleDistance(distanceInAU: number): number {
  // Inner solar system (0-2 AU): expand by 3x for better visibility
  if (distanceInAU < 2) {
    return distanceInAU * 3;
  }

  // Middle region (2-10 AU): normal scale with offset
  if (distanceInAU < 10) {
    return 6 + (distanceInAU - 2) * 1.5;
  }

  // Outer solar system (10-50 AU): compressed scale
  if (distanceInAU < 50) {
    return 18 + (distanceInAU - 10) * 0.5;
  }

  // Very far (> 50 AU): heavily compressed
  return 38 + (distanceInAU - 50) * 0.2;
}

/**
 * Scale a 3D position vector
 */
export function scalePosition(x: number, y: number, z: number): { x: number; y: number; z: number } {
  const distance = Math.sqrt(x * x + y * y + z * z);

  if (distance === 0) {
    return { x: 0, y: 0, z: 0 };
  }

  const scaledDistance = scaleDistance(distance);
  const scale = scaledDistance / distance;

  return {
    x: x * scale,
    y: y * scale,
    z: z * scale,
  };
}