from abc import ABC
import numpy as np
from imports.geometry.helpers.geometry_helper import GeometryHelper


class CityGmlBase(ABC):
  def __init__(self):
    self._surfaces = []

  @property
  def surfaces(self):
    return self._surfaces

  @staticmethod
  def _remove_last_point(points):
    array = points.split(' ')
    res = " "
    return res.join(array[0:len(array) - 3])

  @staticmethod
  def _solid_points(coordinates) -> np.ndarray:
    """
    Solid surface point matrix [[x, y, z],[x, y, z],...]
    :parameter coordinates: string from file
    :return: np.ndarray
    """
    solid_points = np.fromstring(coordinates, dtype=float, sep=' ')
    solid_points = GeometryHelper.to_points_matrix(solid_points)
    return solid_points

  @classmethod
  def _solid(cls, o):
    raise NotImplementedError

  @classmethod
  def _multi_surface(cls, o):
    raise NotImplementedError

  @classmethod
  def _multi_curve(cls, o):
    raise NotImplementedError