import json

from flask import Response, request
from flask_restful import Resource

from costs.cost import Cost
from co2_emission.co2_emission import Co2Emission
from hub_api.config import Config
from hub_api.helpers.session_helper import session, refresh_session
from hub_api.mockup.building import Building


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

  def post(self):
    """
    API call for requesting a specified list of enriched persistence
    """
    # todo: cost and co2 libraries are using default canadians values, in the future need to be optionally API configurable
    session_id = request.headers.get('session-id', None)
    token = request.headers.get('token', None)
    application_uuid = request.headers.get('application-uuid', None)
    _session = refresh_session(session_id, token, application_uuid)
    if _session is None:
      return Response(json.dumps({'error': 'unauthorized'}), status=403)
    token = {'token': _session['token']}
    application_id = session(session_id)['application_id']
    user_id = session(session_id)['user_id']
    payload = request.get_json()
    if 'scenarios' not in payload:
      return Response(json.dumps({'error': 'Bad request'}), status=400, headers=token)

    results = self.database.results(user_id, application_id, payload)
    if results == {}:
      # no data found for the given parameters
      return Response(json.dumps({'result': 'succeed', 'results': results}), status=200, headers=token)

    # deserialize the response to return pure json

    for scenario in results:
      for building_results in results[scenario]:
        values = []
        building_info = self.database.building(building_results['building'], user_id, application_id, scenario)
        results_dictionary = {}
        archetype = self.energy_systems_catalog.get_entry(building_info.system_name)
        for value in building_results['insel meb']:
          key = next(iter(value))
          values.append({key: json.loads(str(value[key]))})
          results_dictionary[key] = json.loads(str(value[key]))
        building_results['insel meb'] = values
        mockup_building = Building(building_info, results_dictionary, archetype)
        life_cycle = Cost(mockup_building, retrofit_scenario=scenario).life_cycle

        operational_co2 = Co2Emission(mockup_building).operational_co2
        global_capital_costs = life_cycle[f'Scenario {scenario}']['global_capital_costs']
        global_operational_costs = life_cycle[f'Scenario {scenario}']['global_operational_costs']
        global_capital_incomes = life_cycle[f'Scenario {scenario}']['global_capital_incomes']
        global_maintenance_costs = life_cycle[f'Scenario {scenario}']['global_maintenance_costs']
        building_results['costs'] = {
          'total_capital_costs_skin': life_cycle[f'Scenario {scenario}']['total_capital_costs_skin'],
          'total_capital_costs_systems': life_cycle[f'Scenario {scenario}']['total_capital_costs_systems'],
          'end_of_life_costs': life_cycle[f'Scenario {scenario}']['end_of_life_costs'],
          'total_operational_costs': life_cycle[f'Scenario {scenario}']['total_operational_costs'],
          'total_maintenance_costs': life_cycle[f'Scenario {scenario}']['total_maintenance_costs'],
          'operational_incomes': life_cycle[f'Scenario {scenario}']['operational_incomes'],
          'capital_incomes': life_cycle[f'Scenario {scenario}']['capital_incomes'],
          'global_capital_costs': {
            'B2010_opaque_walls': global_capital_costs['B2010_opaque_walls'].tolist(),
            'B2020_transparent': global_capital_costs['B2020_transparent'].tolist(),
            'B3010_opaque_roof': global_capital_costs['B3010_opaque_roof'].tolist(),
            'B10_superstructure': global_capital_costs['B10_superstructure'].tolist(),
            'D3020_heat_generating_systems': global_capital_costs['D3020_heat_generating_systems'].tolist(),
            'D3030_cooling_generation_systems': global_capital_costs['D3030_cooling_generation_systems'].tolist(),
            'D3080_other_hvac_ahu': global_capital_costs['D3080_other_hvac_ahu'].tolist(),
            'D5020_lighting_and_branch_wiring': global_capital_costs['D5020_lighting_and_branch_wiring'].tolist(),
            'D301010_photovoltaic_system': global_capital_costs['D301010_photovoltaic_system'].tolist(),
          },
          'global_end_of_life_costs': life_cycle[f'Scenario {scenario}']['global_end_of_life_costs']['End_of_life_costs'].tolist(),
          'global_operational_costs': {
            'fixed_costs_electricity_peak': global_operational_costs['Fixed_costs_electricity_peak'].tolist(),
            'fixed_costs_electricity_monthly': global_operational_costs['Fixed_costs_electricity_monthly'].tolist(),
            'variable_costs_electricity': global_operational_costs['Variable_costs_electricity'].tolist(),
            'fixed_costs_gas': global_operational_costs['Fixed_costs_gas'].tolist(),
            'variable_costs_gas': global_operational_costs['Variable_costs_gas'].tolist()
          },
          'global_maintenance_costs': {
            'heating_maintenance': global_maintenance_costs['Heating_maintenance'].tolist(),
            'cooling_maintenance': global_maintenance_costs['Cooling_maintenance'].tolist(),
            'pv_maintenance': global_maintenance_costs['PV_maintenance'].tolist(),
          },
          'global_operational_incomes': life_cycle[f'Scenario {scenario}']['global_operational_incomes']['Incomes electricity'].tolist(),
          'global_capital_incomes': {
            'subsidies_construction': global_capital_incomes['Subsidies construction'].tolist(),
            'subsidies_hvac': global_capital_incomes['Subsidies HVAC'].tolist(),
            'subsidies_pv': global_capital_incomes['Subsidies PV'].tolist()
          }
        }
        building_results['operational_co2'] = operational_co2
    return Response(json.dumps({'result': 'succeed', 'results': results}), status=200, headers=token)