from model_data.BaseUtility import BaseUtility
from model_data.Property import Property
from model_data.analysis.UvalueEstimations import UvalueEstimations


class FloorRecommendations(BaseUtility):
    # part L building regulations indicate that any rennovations on an existing property's walls should
    # achieve a U-value of no higher than 0.3
    BUILDING_REGULATIONS_PART_L_MAX_U_VALUE = 0.25
    # We don't recommend measures that are too low because it becomes expensive, therefore we aim to avoid
    # diminishing returns. This value should be verified with Osmosis (TODO)
    DIMINISHING_RETURNS_U_VALUE = 0.2

    def __init__(self, property_instance: Property, uvalue_estimates: UvalueEstimations):
        self.property = property_instance
        self.uvalue_estimates = uvalue_estimates
        # For audit purposes, when estimating u values we'll store it
        self.estimated_u_value = None

        # Will contains a list of recommended measures
        self.recommendations = []

    def recommend(self):
        is_suspended = self.property.floor["is_suspended"]
        insulation_thickness = self.property.floor["insulation_thickness"]
        self.property.year_built
        self.property.data["floor-energy-eff"]
        self.property.data["floor-env-eff"]

        # TODO: We neeed to know if the property is ground floor or not

        if self.property.floor["another_property_below"]:
            # If there's another property below, it's likely impractical to recommend a floor upgrade
            return

        if is_suspended:
            if insulation_thickness == "none":
                uvalue = None
            else:
                uvalue = self.uvalue_estimates.get_estimate(
                    component="floor",
                    description="",
                    thickness=insulation_thickness
                )