from dataclasses import dataclass
from typing import Optional

from geometry.ray import Ray
from geometry.vector import Vector


@dataclass
class Surface:
  refraction_index: float

  def __and__(self, v: Vector) -> bool:
    """
    Does this point lie on the surface itself?
    """
    raise NotImplementedError()

  def __contains__(self, v: Vector) -> bool:
    """
    Is this point _inside_ the region of space, separated by this surface?
    """
    raise NotImplementedError()

  def normal_at(self, v: Vector) -> Vector:
    raise NotImplementedError()

  def intersect(self, ray: Ray) -> Optional[float]:
    raise NotImplementedError()

  def draw2d(self, plt, **kwargs):
    raise NotImplementedError()