import os
import os.path
import tempfile
from icalendar import Calendar, Event
from webdav3.client import Client as WDClient


class Client:
    def __init__(self, config):
        """
        Initializes a client
        """
        options = {
            'webdav_hostname': config["WEBDAV_SERVER"],
            'webdav_login': config["WEBDAV_USER"],
            'webdav_password': config["WEBDAV_PASSWORD"],
        }
        self.calendar_path = config["CALENDAR_PATH"]
        self.client = WDClient(options)

    def retrieve_calendars_list(self):
        """
        Retrieves the calendar list
        """
        return self.client.list(self.path)

    def read_calendar(self, pathname):
        """
        Given a filename, tries to read the calendar event
        """
        f, temp_path = tempfile.mkstemp()
        rpath = os.path.join(self.calendar_path, pathname)
        self.client.download_sync(remote_path=rpath,
                                  local_path=temp_path)
        # Read the temporary data, close the file, remove it
        data = f.read()
        f.close()
        os.remove(temp_path)
        # Now with the data read, we can process it
        return self.parse_calendar(data)

    def parse_calendar(self, data):
        """
        Parses ICS calendar data received
        """
        calendar = Calendar.from_ical(data)
        for component in calendar.walk():
            if component.name == 'VEVENT':
                pass



    def get_todays_events(self):
        """
        Get todays events
        """
        pass