"""
Created on 17 oct. 2018

@author: Axel Huynh-Phuc, Thibaud Gasser
"""

"""
This module defines the global configuration for the simulation
"""

import json
import os

from data import Data
from model import Emission


class Config:
    """
    The Config class defines all simulation properties that can be changed
    """

    # Total of emissions of all pollutants in mg for n steps of simulation without acting on areas
    # These constants are simulation dependant, you must change them according to your simulation 
    ref200 = Emission(co2=42816869.05436445, co=1128465.0343051048, nox=18389.648337283958, hc=6154.330914019103,
                      pmx=885.0829265236318)

    def __init__(self,config_file, data : Data):
        """
        Default constructor
        """
        self.import_config_file(config_file)
        self.init_traci(data.dir)
        self.check_config()
        
    def import_config_file(self, config_file):
        """
        Import your configuration file in JSON format
        :param config_file: The path to your configuration file
        :return:
        """
        with open(f'{config_file}.json', 'r') as f:
            data = json.load(f)

        for option in data:
            self.__setattr__(option, data[option])
        self.config_filename = os.path.basename(f.name)
        self.check_config()

    def check_config(self):
        """
        Check the relevance of user configuration choices
        :return:
        """
        # Weight routing mode cannot be combined with other actions
        if self.weight_routing_mode:
            self.limit_speed_mode = False
            self.adjust_traffic_light_mode = False
            self.lock_area_mode = False

        # If without_actions_mode is chosen
        if self.without_actions_mode:
            self.limit_speed_mode = False
            self.adjust_traffic_light_mode = False
            self.weight_routing_mode = False
            self.lock_area_mode = False

    def __repr__(self) -> str:
        """
        :return: All properties chosen by the user
        """
        return (
            f'step number = {self.n_steps}\n'
            f'window size = {self.window_size}\n'
            f'weight routing mode = {self.weight_routing_mode}\n'
            f'lock area mode = {self.lock_area_mode}\n'
            f'limit speed mode = {self.limit_speed_mode}, RF = {self.speed_rf * 100}%\n'
            f'adjust traffic light mode = {self.adjust_traffic_light_mode},'
            f'RF = {self.trafficLights_duration_rf * 100}%\n'
        )
        
    def init_traci(self, simulation_dir):
        """
        Init the Traci API
        :param simulation_dir: The path to the simulation directory
        :return:
        """
        self._SUMOCFG = f'files/simulations/{simulation_dir}/osm.sumocfg'
        sumo_binary = os.path.join(os.environ['SUMO_HOME'], 'bin', self._SUMOCMD)
        self.sumo_cmd = [sumo_binary, "-c", self._SUMOCFG]

    def get_ref_emissions(self):
        """
        :return: Return the sum of all emissions (in mg) from the simulation of reference
        """
        if self.n_steps == 200:
            return self.ref200