#!/usr/bin/env python3.11

from common import *
import shapely


def inside_points(labyrinth: Labyrinth) -> list[Point]:
    labyrinth = labyrinth.clean()
    path = labyrinth.get_path()
    empty_points = labyrinth.get_empty_points()
    logging.debug("let's shapely that")
    shp_path = []
    for point in path:
        shp_path.append(shapely.Point(point.x, point.y))
    polygon = shapely.Polygon(shp_path)
    inside_points = []
    for point in empty_points:
        current = shapely.Point(point.x, point.y)
        if shapely.contains(polygon, current):
            inside_points.append(point)

    return inside_points


if __name__ == "__main__":
    labyrinth = parse("input.txt")
    print(len(inside_points(labyrinth)))