"""
ExportsFactory export a city into several formats
SPDX - License - Identifier: LGPL - 3.0 - or -later
Copyright © 2020 Project Author Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
"""
import xmltodict
import uuid
from pathlib import Path


class EnergyAde:
  def __init__(self, city, path):
    self._city = city
    self._path = path
    self._export()

  def _export(self):
    energy_ade = {
      'core:CityModel': {
        '@xmlns:brid':'http://www.opengis.net/citygml/bridge/2.0',
        '@xmlns:tran':'http://www.opengis.net/citygml/transportation/2.0',
        '@xmlns:frn':'http://www.opengis.net/citygml/cityfurniture/2.0',
        '@xmlns:wtr':'http://www.opengis.net/citygml/waterbody/2.0',
        '@xmlns:sch':'http://www.ascc.net/xml/schematron',
        '@xmlns:veg':'http://www.opengis.net/citygml/vegetation/2.0',
        '@xmlns:xlink':'http://www.w3.org/1999/xlink',
        '@xmlns:tun':'http://www.opengis.net/citygml/tunnel/2.0',
        '@xmlns:tex':'http://www.opengis.net/citygml/texturedsurface/2.0',
        '@xmlns:gml':'http://www.opengis.net/gml',
        '@xmlns:gen':'http://www.opengis.net/citygml/generics/2.0',
        '@xmlns:dem':'http://www.opengis.net/citygml/relief/2.0',
        '@xmlns:app':'http://www.opengis.net/citygml/appearance/2.0',
        '@xmlns:luse':'http://www.opengis.net/citygml/landuse/2.0',
        '@xmlns:xAL':'urn:oasis:names:tc:ciq:xsdschema:xAL:2.0',
        '@xmlns:xsi':'http://www.w3.org/2001/XMLSchema-instance',
        '@xmlns:smil20lang':'http://www.w3.org/2001/SMIL20/Language',
        '@xmlns:pbase':'http://www.opengis.net/citygml/profiles/base/2.0',
        '@xmlns:smil20': 'http://www.w3.org/2001/SMIL20/',
        '@xmlns:bldg':'http://www.opengis.net/citygml/building/2.0',
        '@xmlns:core':'http://www.opengis.net/citygml/2.0',
        '@xmlns:grp':'http://www.opengis.net/citygml/cityobjectgroup/2.0',
        'gml:boundedBy': {
          'gml:Envelope': {
            '@srsName': self._city.srs_name,
            '@srsDimension': 3,
            'gml:lowerCorner': ' '.join([str(e) for e in self._city.lower_corner]),
            'gml:upperCorner': ' '.join([str(e) for e in self._city.upper_corner])
          }
        }
      }
    }
    buildings = []
    for building in self._city.buildings:
      building_dic = {
        'bldg:Building': {
            '@gml:id': building.name,
        }
      }
      building_dic = EnergyAde._get_measures(building, building_dic)
      buildings.append(building_dic)

    energy_ade['core:CityModel']['core:cityObjectMember'] = buildings
    file_name = self._city.name + '_ade.gml'
    file_path = Path(self._path / file_name).resolve()
    with open(file_path, 'w' ) as file:
      file.write(xmltodict.unparse(energy_ade,pretty=True))

  @staticmethod
  def _get_measures(building, building_dic):
    measures = []
    measure = EnergyAde._get_measure(building.heating, 'year', 'Energy demand heating', 'INSEL')
    if measure is not None:
      measures.append(measure)
    measure = EnergyAde._get_measure(building.cooling, 'year', 'Energy demand cooling', 'INSEL')
    if measure is not None:
      measures.append(measure)
    if len(measures) != 0:
      building_dic['genobj:measureAttribute'] = measures

    periods = []
    for key in building.heating:
      if key != 'year':
        period = EnergyAde._get_period(building.heating, key, 'Heating energy', 'INSEL')
        periods.append(period)

    for key in building.cooling:
      if key != 'year':
        period = EnergyAde._get_period(building.cooling, key, 'Cooling energy', 'INSEL')
        periods.append(period)

    if len(periods) != 0:
      building_dic['energy:demands'] = {'energy:EnergyDemand': periods}

    return building_dic

  @staticmethod
  def _get_measure(measure_dict, key_value, name, source):
    measure = None
    if key_value in measure_dict:
      measure = {
        '@name': name,
        'genobj:value': {
        '@uom': 'kWh',
        '#text': ' '.join([str(e/1000) for e in measure_dict[key_value][source]])
        }
      }
    return measure

  @staticmethod
  def _get_period(measure_dict, key_value, description, source):
    period = {
      '@gml:id': uuid.uuid4(),
      'energy:energyAmount': {
        'energy:RegularTimeSeries': {
          'energy:variableProperties': {
            'energy:TimeValuesProperties': {
              'energy:acquisitionMethod': 'simulation',
              'energy:source': source,
              'energy:thematicDescription': description,
            },
            'energy:timeInterval': {
              '@unit': key_value,
              '#text': '1',
            },
            'energy:values': {
              '@uom': 'kWh',
              '#text': ' '.join([str(float(e) / 1000) for e in measure_dict[key_value][source]])
            }
          }
        }
      }
    }
    return period