"""
Test EnergySystemsFactory and various heatpump models
SPDX - License - Identifier: LGPL - 3.0 - or -later
Copyright © 2021 Project Author Peter Yefi peteryefi@gmail.com
"""
import pandas as pd
from unittest import TestCase
from imports.geometry_factory import GeometryFactory
from imports.energy_systems_factory import EnergySystemsFactory
from city_model_structure.energy_systems.air_source_hp import AirSourceHP
from exports.energy_systems_factory import EnergySystemsExportFactory
import os


class TestEnergySystemsFactory(TestCase):
  """
  TestBuilding TestCase 1
  """

  def setUp(self) -> None:
    """
    Test setup
    :return: None
    """
    city_file = "../unittests/tests_data/C40_Final.gml"
    self._output_path = "../unittests/tests_data/user_output.csv"
    self._city = GeometryFactory('citygml', city_file).city
    EnergySystemsFactory('air source hp', self._city).enrich()

  def test_air_source_heat_pump_import(self):
    self.assertIsNotNone(self._city.energy_systems, 'City has energy systems')
    self.assertIsInstance(self._city.energy_systems[0].air_source_hp, AirSourceHP)
    self.assertEqual(self._city.energy_systems[0].air_source_hp.model, '012')
    self.assertEqual(self._city.energy_systems[len(self._city.energy_systems) - 1].air_source_hp.model, '140')

  def test_air_source_heat_pump_export(self):
    # User defined paramenters
    user_input = {
      'StartYear': 2020,
      'EndYear': 2021,
      'MaximumHPEnergyInput': 8000,
      'HoursOfStorageAtMaxDemand': 1,
      'BuildingSuppTemp': 40,
      'TemperatureDifference': 15,
      'FuelLHV': 47100,
      'FuelPrice': 0.12,
      'FuelEF': 1887,
      'FuelDensity': 0.717,
      'HPSupTemp': 60
    }

    EnergySystemsExportFactory(self._city, user_input, '012', self._output_path).export()
    df = pd.read_csv(self._output_path)
    self.assertEqual(df.shape, (13, 3))
    self.assertEqual(df.iloc[0, 1], 3045398.0)

  def tearDown(self) -> None:
    try:
      os.remove(self._output_path)
    except OSError:
      pass