from imports.geometry.citygml_tools import CityGmlTools
from city_model_structure.attributes.surface import Surface
from city_model_structure.attributes.polygon import Polygon


class CityGmlLod2(CityGmlTools):

  @staticmethod
  def _lod2_composite_surface(s):
    solid_points = [
      CityGmlTools._solid_points((CityGmlTools._remove_last_point(sm['Polygon']['exterior']['LinearRing']['posList'])))
      for sm in s['CompositeSurface']['surfaceMember']]
    return [Surface(Polygon(sp), Polygon(sp)) for sp in solid_points]

  @staticmethod
  def _lod2_multi_surface(s, surface_type):
    # todo: this need to be changed into surface bounded?
    try:
      solid_points = [CityGmlTools._solid_points(CityGmlTools._remove_last_point(
        s['Polygon']['exterior']['LinearRing']['posList']['#text']))]
    except TypeError:
      solid_points = [CityGmlTools._solid_points(CityGmlTools._remove_last_point(s['Polygon']['exterior']['LinearRing']
                                                                       ['posList']))]
    return [Surface(Polygon(sp), Polygon(sp), surface_type=surface_type) for sp in solid_points]

  @staticmethod
  def lod2(bound):
    surfaces = []
    for surface_type in iter(bound):
      for s in bound[surface_type]['lod2MultiSurface']['MultiSurface']['surfaceMember']:
        if 'CompositeSurface' in s:
          surfaces = surfaces + CityGmlLod2._lod2_composite_surface(s)
        else:
          surfaces = surfaces + CityGmlLod2._lod2_multi_surface(s, surface_type)
    return surfaces

  @staticmethod
  def lod2_solid_multi_surface(o):
    polygons = None
    if 'boundedBy' in o['Building']['consistsOfBuildingPart']['BuildingPart']:
      if 'RoofSurface' in o['Building']['consistsOfBuildingPart']['BuildingPart']['boundedBy']:
        if o['Building']['consistsOfBuildingPart']['BuildingPart']['boundedBy']['RoofSurface']['lod2MultiSurface'] != 'None':
          polygons = [Polygon(CityGmlTools._remove_last_point(s['Polygon']['exterior']['LinearRing']['posList']))
                    for s in o['Building']['consistsOfBuildingPart']['BuildingPart']['boundedBy']['RoofSurface']
                      ['lod2MultiSurface']['MultiSurface']['surfaceMember']]

      elif 'WallSurface' in o['Building']['consistsOfBuildingPart']['BuildingPart']['boundedBy']:
        if o['Building']['consistsOfBuildingPart']['BuildingPart']['boundedBy']['WallSurface']['lod2MultiSurface'] != 'None':
          polygons = [Polygon(CityGmlTools._remove_last_point(s['Polygon']['exterior']['LinearRing']['posList']))
                    for s in o['Building']['consistsOfBuildingPart']['BuildingPart']['boundedBy']['WallSurface']['lod2MultiSurface']['MultiSurface']['surfaceMember']]
    else:
      polygons = [Polygon(CityGmlTools._remove_last_point(s['Polygon']['exterior']['LinearRing']['posList']))
                  for s in o['Building']['lod2MultiSurface']['MultiSurface']['surfaceMember']]
    return [Surface(p,p) for p in polygons]


  @staticmethod
  def lod2_solid(o):
    try:
      solid_points = [CityGmlTools._solid_points(CityGmlTools._remove_last_point(s['Polygon']['exterior']['LinearRing']['posList']['#text']))
                  for s in o['Building']['lod2Solid']['Solid']['exterior']['CompositeSurface']['surfaceMember']]
    except TypeError:
      solid_points = [CityGmlTools._solid_points(CityGmlTools._remove_last_point(s['Polygon']['exterior']['LinearRing']['posList']))
                  for s in o['Building']['lod2Solid']['Solid']['exterior']['CompositeSurface']['surfaceMember']]
    return [Surface(Polygon(sp),Polygon(sp)) for sp in solid_points]