#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
import config
import geo
import inspect
import time


class changed_value_indicator(dict):
    def __init__(self):
        super().__init__(self)

    def changed_here(self, topic, key, value):
        caller_name = inspect.getmodule(inspect.stack()[1][0]).__name__ + '.' + inspect.stack()[1][3]
        key = '::'.join([caller_name, topic, key])
        #
        rv = self.get(key) != value
        self[key] = value
        return rv


def now():
    return time.mktime(time.localtime())


def sunrise_time(time_offs_min=30):
    return time.mktime(geo.sun.sunrise(config.GEO_POSITION)) + time_offs_min * 60


def sunset_time(time_offs_min=-30):
    return time.mktime(geo.sun.sunset(config.GEO_POSITION)) + time_offs_min * 60