from xml.etree import ElementTree
from itertools import chain

def read_level(file_path):
    schema = '{http://www.w3.org/2000/svg}'
    root = ElementTree.parse(file_path).getroot()
    active  = next(filter(
                            lambda g: g.get('id') == "ACTIVE",
                             root.iter(f"{schema}g")))
    block_pos = [ (
                  float(rect.get('x')),
                  float(rect.get('y')),
                  float(rect.get('width')),
                  float(rect.get('height')),
                  )
                  for rect in active.iter(f"{schema}rect")
                ]
    gem_pos = []
    ellipses = chain(
                    active.iter(f"{schema}circle"),
                    active.iter(f"{schema}ellipse")
                    )
    for ellipse in ellipses:
        if ellipse.get('id') == "START":
            start = (
                    float(ellipse.get(f'cx')),
                    float(ellipse.get(f'cy')),
                    )
        else:
            gem_pos.append((
                           float(ellipse.get('cx')),
                           float(ellipse.get('cy')),
                           ))

    return (start, gem_pos, block_pos)