from backend.Property import Property
from unittest.mock import Mock
from recommendations.VentilationRecommendations import VentilationRecommendations

ventilation_materials = [
    {
        'id': 17, 'type': 'mechanical_ventilation', 'description': 'Mechanical Extract Ventilation',
        'depths': None, 'depth_unit': None, 'cost': 500, 'cost_unit': 'gbp_per_unit', 'r_value_per_mm': None,
        'r_value_unit': None, 'thermal_conductivity': None, 'thermal_conductivity_unit': None,
        'link': None, 'is_active': True, 'estimated_cost': 1000, 'quantity': 2, 'quantity_unit': None
    }
]


class TestVentilationRecommendations:

    def test_natural_ventilation(self):
        input_property1 = Property(id=1, postcode="F4k3 6", address1="623 fake street", epc_client=Mock())
        input_property1.data = {"mechanical-ventilation": "natural"}

        recommender = VentilationRecommendations(
            property_instance=input_property1,
            materials=ventilation_materials
        )

        assert not recommender.recommendation

        recommender.recommend()

        assert len(recommender.recommendation) == 1

        assert recommender.recommendation[0]["cost"] == 1000
        assert recommender.recommendation[0]["type"] == "mechanical_ventilation"
        assert len(recommender.recommendation[0]["parts"]) == 1
        assert recommender.recommendation[0]["parts"][0]["description"] == 'Mechanical Extract Ventilation'
        assert recommender.recommendation[0]["parts"][0]["quantity"] == 2

    def test_missing_ventilation(self):
        input_property2 = Property(id=1, postcode="F4k3 6", address1="623 fake street", epc_client=Mock())
        input_property2.data = {"mechanical-ventilation": None}

        recommender2 = VentilationRecommendations(
            property_instance=input_property2,
            materials=ventilation_materials
        )

        assert not recommender2.recommendation

        recommender2.recommend()

        assert len(recommender2.recommendation) == 1

        assert recommender2.recommendation[0]["cost"] == 1000
        assert recommender2.recommendation[0]["type"] == "mechanical_ventilation"
        assert len(recommender2.recommendation[0]["parts"]) == 1
        assert recommender2.recommendation[0]["parts"][0]["description"] == 'Mechanical Extract Ventilation'
        assert recommender2.recommendation[0]["parts"][0]["quantity"] == 2

    def test_nodata_ventilation(self):
        input_property3 = Property(id=1, postcode="F4k3 6", address1="623 fake street", epc_client=Mock())
        input_property3.data = {"mechanical-ventilation": "NO DATA!!"}

        recommender3 = VentilationRecommendations(
            property_instance=input_property3,
            materials=ventilation_materials
        )

        assert not recommender3.recommendation

        recommender3.recommend()

        assert len(recommender3.recommendation) == 1

        assert recommender3.recommendation[0]["cost"] == 1000
        assert recommender3.recommendation[0]["type"] == "mechanical_ventilation"
        assert len(recommender3.recommendation[0]["parts"]) == 1
        assert recommender3.recommendation[0]["parts"][0]["description"] == 'Mechanical Extract Ventilation'
        assert recommender3.recommendation[0]["parts"][0]["quantity"] == 2

    def test_existing_ventilation_1(self):
        input_property4 = Property(id=1, postcode="F4k3 6", address1="623 fake street", epc_client=Mock())
        input_property4.data = {"mechanical-ventilation": 'mechanical, extract only'}

        recommender4 = VentilationRecommendations(
            property_instance=input_property4,
            materials=ventilation_materials
        )

        assert not recommender4.recommendation

        recommender4.recommend()

        assert not recommender4.recommendation
        assert recommender4.has_ventilaion

    def test_existing_ventilation_2(self):
        input_property5 = Property(id=1, postcode="F4k3 6", address1="623 fake street", epc_client=Mock())
        input_property5.data = {"mechanical-ventilation": 'mechanical, supply and extract'}

        recommender5 = VentilationRecommendations(
            property_instance=input_property5,
            materials=ventilation_materials
        )

        assert not recommender5.recommendation

        recommender5.recommend()

        assert not recommender5.recommendation
        assert recommender5.has_ventilaion