import os
import requests

from configparser import ConfigParser


class GarageUpdater:
    def __init__(self, configFile):
        config = ConfigParser()
        config.read(configFile)

        self.uri = config['garage'].get('uri')
        self.garageTempFile = 'garage.tmp'
        self.garageFile = 'garage.json'
        self.persistGarageState('{"error": "init"}')

    def updateGarageState(self):
        try:
            state = self.getGarageState()
            self.persistGarageState(state)
        except Exception as e:
            print(e, flush=True)
            self.persistGarageState('{"error": "exception"}')

    def clearGarageState(self):
        self.persistGarageState('{"error": "halted"}')

    def getGarageState(self):
        return requests.get(self.uri, timeout=3).text

    def persistGarageState(self, state):
        with open(self.garageTempFile, 'w') as file:
            file.write(state)

        os.replace(self.garageTempFile, self.garageFile)