#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
from devices.base import base
from devices.base import BATTERY_WARN_LEVEL
from devices.base import warning
import json


class brennenstuhl_heatingvalve(base):
    """ Communication (MQTT)

        brennenstuhl_heatingvalve {
                                |      "away_mode": ["ON", "OFF"]
                                |      "battery": [0...100] %
                                |      "child_lock": ["LOCK", "UNLOCK"]
                                |      "current_heating_setpoint": [5...30] °C
                                |      "linkquality": [0...255] lqi
                                |      "local_temperature": [numeric] °C
                                |      "preset": ["manual", ...]
                                |      "system_mode": ["heat", ...]
                                |      "valve_detection": ["ON", "OFF"]
                                |      "window_detection": ["ON", "OFF"]
                                | }
                                +- set {
                                           "away_mode": ["ON", "OFF", "TOGGLE"]
                                           "child_lock": ["LOCK", "UNLOCK"]
                                           "current_heating_setpoint": [5...30] °C
                                           "preset": ["manual", ...]
                                           "system_mode": ["heat", ...]
                                           "valve_detection": ["ON", "OFF", "TOGGLE"]
                                           "window_detection": ["ON", "OFF", "TOGGLE"]
                                       }
    """
    KEY_LINKQUALITY = "linkquality"
    KEY_BATTERY = "battery"
    KEY_HEATING_SETPOINT = "current_heating_setpoint"
    KEY_TEMPERATURE = "local_temperature"
    #
    KEY_AWAY_MODE = "away_mode"
    KEY_CHILD_LOCK = "child_lock"
    KEY_PRESET = "preset"
    KEY_SYSTEM_MODE = "system_mode"
    KEY_VALVE_DETECTION = "valve_detection"
    KEY_WINDOW_DETECTION = "window_detection"
    #
    TX_TYPE = base.TX_DICT
    #
    RX_KEYS = [KEY_LINKQUALITY, KEY_BATTERY, KEY_HEATING_SETPOINT, KEY_TEMPERATURE]
    RX_IGNORE_KEYS = [KEY_AWAY_MODE, KEY_CHILD_LOCK, KEY_PRESET, KEY_SYSTEM_MODE, KEY_VALVE_DETECTION, KEY_WINDOW_DETECTION]

    def __init__(self, mqtt_client, topic):
        super().__init__(mqtt_client, topic)
        self.mqtt_client.send(self.topic + '/' + self.TX_TOPIC, json.dumps({self.KEY_WINDOW_DETECTION: "ON",
                              self.KEY_CHILD_LOCK: "UNLOCK", self.KEY_VALVE_DETECTION: "ON", self.KEY_SYSTEM_MODE: "heat", self.KEY_PRESET: "manual"}))
        #
        self.add_callback(self.KEY_BATTERY, None, self.__warning__, True)
        self.__battery_warning__ = False

    def __state_logging__(self, inst, key, data):
        if key in [self.KEY_HEATING_SETPOINT, self.KEY_CHILD_LOCK, self.KEY_WINDOW_DETECTION, self.KEY_VALVE_DETECTION]:
            self.logger.info("State change of '%s' to '%s'", key, repr(data))

    #
    # WARNING CALL
    #
    def __warning__(self, client, key, data):
        if data <= BATTERY_WARN_LEVEL:
            if not self.__battery_warning__:
                self.__battery_warning__ = True
                w = warning(self.topic, warning.TYPE_BATTERY_LOW, "Battery low (%.1f%%)", data)
                self.logger.warning(w)
                self.set(self.KEY_WARNING, w)
        else:
            self.__battery_warning__ = False

    #
    # RX
    #
    @property
    def linkqulity(self):
        return self.get(self.KEY_LINKQUALITY)

    @property
    def heating_setpoint(self):
        return self.get(self.KEY_HEATING_SETPOINT)

    @property
    def temperature(self):
        return self.get(self.KEY_TEMPERATURE)

    #
    # TX
    #
    def set_heating_setpoint(self, setpoint):
        self.send_command(self.KEY_HEATING_SETPOINT, setpoint)

    def set_heating_setpoint_mcb(self, device, key, data):
        self.set_heating_setpoint(data)