"""
City info
SPDX - License - Identifier: LGPL - 3.0 - or -later
Copyright © 2022 Project Author name guillermo.gutierrezmorote@concordia.ca
Code contributors: Peter Yefi peteryefi@gmail.com
"""
import json
from flask import Response, request, g
from flask_restful import Resource
from hub_api.helpers.auth import role_required
from persistence.models import UserRoles
from hub_logger import logger
from imports.geometry_factory import GeometryFactory
from pathlib import Path
import os
from hub_api.config import Config


class CityInfo(Resource, Config):
  def __init__(self):
    super().__init__()

  @role_required([UserRoles.Admin.value])
  def get(self, city_id):
    city = self.get_city(city_id)

    # TODO: this is only for dompark project and need to be removed in future versions.
    floor_area = 0
    wall_construction = 'unknown'
    floor_construction = 'unknown'
    roof_construction = 'unknown'
    window_type = 'unknown'
    building_dic = {}
    for building in city.buildings:

      usages = []  # This is only valid for dompark project as all the building have the same usage
      if building.lower_corner[2] == 0:
        floor_area += building.floor_area
      for internal_zone in building.internal_zones:
        for usage_zone in internal_zone.usage_zones:
          usages.append({'percentage': usage_zone.percentage, 'usage': usage_zone.usage})
          for thermal_zone in internal_zone.thermal_zones:
            for thermal_boundary in thermal_zone.thermal_boundaries:
              if thermal_boundary.parent_surface.type == 'Ground':
                floor_construction = thermal_boundary.construction_name
              elif thermal_boundary.parent_surface.type == 'Wall':
                wall_construction = thermal_boundary.construction_name
                for thermal_opening in thermal_boundary.thermal_openings:
                  if thermal_opening.construction_name is not None:
                    window_type = thermal_opening.construction_name
                    break
              else:
                roof_construction = thermal_boundary.construction_name
      name = building.human_readable_name
      year_of_construction = str(building.year_of_construction)
      building_dic = {
        'name': str(name),
        'floor_area': str(floor_area),
        'year_of_construction': str(year_of_construction),
        'usages': usages,
        'wall_construction': wall_construction,
        'floor_construction': floor_construction,
        'roof_construction': roof_construction,
        'window_type': window_type,
        'default_archetype': 'industry ASHRAE_2004:4A non_standard_dompark'
      }

    buildings = [building_dic]
    response = {'city_name': city.name,
                'climate_reference_city': str(city.climate_reference_city),
                'buildings': buildings
                }
    return Response(json.dumps(response), status=200)


class City(Resource, Config):

  def __init__(self):
    super().__init__()

  @role_required([UserRoles.Admin.value])
  def post(self):
    allowed_ext = {'gml', '3dm', 'xml', 'obj', 'rhino'}
    try:
      city_file = request.files['city_file']
      ext = city_file.filename.rsplit('.', 1)[1].lower()

      if ext in allowed_ext:
        city_file_type = ext
        if ext == 'gml':
          city_file_type = 'citygml'
        elif ext == '3dm':
          city_file_type = 'rhino'

        file_path = (Path(__file__).parent.parent / 'data/uploaded_city/{}'.format(city_file.filename)).resolve()
        city_file.save(file_path)
        city = GeometryFactory(city_file_type, file_path).city

        saved_city = self.import_db_factory.persist_city(g.user['id'], city)
        if os.path.exists(file_path):
          os.remove(file_path)
        if type(saved_city) is not dict:
          return Response(response=json.dumps({
            'id': saved_city.id, 'name': saved_city.name, 'srs_name': saved_city.srs_name,
            'time_zone': saved_city.time_zone, 'version': saved_city.city_version, 'country': saved_city.country_code,
            'lat': saved_city.latitude, 'lon': saved_city.longitude, 'lower_corner': saved_city.lower_corner,
            'upper_corner': saved_city.upper_corner, 'created': saved_city.created, 'updated': saved_city.updated,
            'user': {'id': saved_city.user.id, 'name': saved_city.user.name, 'email': saved_city.user.email,
                     'role': saved_city.user.role.value}
          }, default=str), status=201)
        return Response(response=json.dumps(saved_city), status=200)
      else:
        return Response(response=json.dumps({'err_msg': 'Unknown city file type'}), status=400)
    except Exception as err:
      logger.error(err)
      return Response(response=json.dumps({'err_msg': 'Sorry an error occurred while creating city'}), status=400)