import json
from vehicle_group import get_vehicle_group


class App:
    def __init__(self):
        self._co2_class = None
        self._read_configs()

    def _read_configs(self):
        with open("config/co2_classe.json") as json_file:
            self._co2_class = json.load(json_file)

    def get_co2_class(self, registrations_date, emission, vehicle_type, axis_type, power, cabin):
        vehicle_grp = get_vehicle_group(power, cabin, vehicle_type, axis_type)
        co2_limit = self._co2_class[vehicle_grp][registrations_date]
        print(vehicle_grp)
        print(co2_limit)
        if emission < (co2_limit * 0.5):
            print("Klasse 4")
        elif emission < (co2_limit * 0.92):
            print("Klasse 3")
        elif emission < (co2_limit * 0.95):
            print("Klasse 2")
        else:
            print("Klasse 1")