#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
"""
Virtual Device(s)

Targets:
  * MQTT-Interface to control joined devices as one virtual device.
  * Primary signal routing 
  * No functionality should be implemented here
"""

# TODO: Extend virtual devices
#         * Digital-Audio-Sources (Spotify, MPD, Currently playing) oder direkt von my_apps?!
#         *

from base import mqtt_base
import devices
import json

BASETOPIC = "videv"


try:
    from config import APP_NAME as ROOT_LOGGER_NAME
except ImportError:
    ROOT_LOGGER_NAME = 'root'


class base(mqtt_base):
    EXEC_RX_FUNC_ALWAYS = []

    def __init__(self, mqtt_client, topic, *args, default_values=None):
        super().__init__(mqtt_client, topic, default_values=default_values)
        self.__device_list__ = {}
        for videv_key, device in [reduced[:2] for reduced in args]:
            self.__device_list__[videv_key] = device
        # send initial state
        for key in self.keys():
            self.__tx__(key, self[key])
        # add receive topics
        mqtt_client.add_callback(self.topic + "/#", self.__rx__)

    def __tx__(self, key, data):
        if type(data) not in (str, ):
            data = json.dumps(data)
        if key in self.keys():
            self.mqtt_client.send(self.topic + '/' + key, data)
        else:
            self.logger.warning("Ignoring send request for key %s (not available for this class)", key)

    def __rx__(self, client, userdata, message):
        key = message.topic.split('/')[-1]
        if key in self.keys():
            try:
                data = json.loads(message.payload)
            except json.decoder.JSONDecodeError:
                data = message.payload
            if data != self[key] or key in self.EXEC_RX_FUNC_ALWAYS:
                self.__rx_functionality__(key, data)
            self.set(key, data)
        else:
            self.logger.info("Ignoring rx message with topic %s", message.topic)

    def __rx_functionality__(self, key, data):
        raise NotImplemented("Method __rx_functionality__ needs to be implemented in child class")

    def __device_data__(self, device, key, data):
        raise NotImplemented("Method __device_data__ needs to be implemented in child class")


class base_routing(base):
    def __init__(self, mqtt_client, topic, *args, default_values=None):
        super().__init__(mqtt_client, topic, *args, default_values=default_values)
        #
        self.__device_key__ = {}
        index = 0
        for videv_key, device, device_key in args:
            if self.__device_list__[videv_key] != device:
                raise ReferenceError("Parent class generated a deviating device list")
            self.__device_key__[videv_key] = device_key
            index += 1
        # add callbacks
        for key in self.__device_list__:
            if self.__device_list__[key].__class__.__name__ == "group":
                self.__device_list__[key][0].add_callback(self.__device_key__[key], None, self.__device_data__, True)
            else:
                self.__device_list__[key].add_callback(self.__device_key__[key], None, self.__device_data__, True)

    def __rx_functionality__(self, key, data):
        try:
            self.__device_list__[key].set(self.__device_key__[key], data)
        except KeyError:
            self.logger.warning("RX passthrough not possible for key %s", key)

    def __device_data__(self, device, key, data):
        l1 = []
        for k, v in self.__device_list__.items():
            if v.__class__.__name__ == "group":
                if id(device) in [id(d) for d in v]:
                    l1.append(k)
            else:
                if id(v) == id(device):
                    l1.append(k)
        l2 = [k for k, v in self.__device_key__.items() if v == key]
        try:
            videv_key = [k for k in l1 if k in l2][0]
        except IndexError:
            self.logger.warning("videv_key not available for %s::%s", device.__class__.__name__, device.topic)
        else:
            self.set(videv_key, data)
            self.__tx__(videv_key, data)


class videv_switching(base_routing):
    KEY_STATE = 'state'
    #
    DEFAULT_VALUES = {
        KEY_STATE: False,
    }

    def __init__(self, mqtt_client, topic, sw_device, sw_key):
        super().__init__(mqtt_client, topic, (self.KEY_STATE, sw_device, sw_key))


class videv_switching_timer(base_routing):
    KEY_STATE = 'state'
    KEY_TIMER = 'timer'
    #
    DEFAULT_VALUES = {
        KEY_STATE: False,
        KEY_TIMER: 0
    }

    def __init__(self, mqtt_client, topic, sw_device, sw_key, tm_device, tm_key):
        super().__init__(mqtt_client, topic, (self.KEY_STATE, sw_device, sw_key), (self.KEY_TIMER, tm_device, tm_key))


class videv_switching_motion(base_routing):
    KEY_STATE = 'state'
    KEY_TIMER = 'timer'
    KEY_MOTION_SENSOR = 'motion_%d'
    #
    DEFAULT_VALUES = {
        KEY_STATE: False,
        KEY_TIMER: 0
    }

    def __init__(self, mqtt_client, topic, sw_device, sw_key, motion_function):
        dv = {self.KEY_STATE: False, self.KEY_TIMER: 0}
        for i in range(0, len(motion_function.args)):
            dv[motion_function.KEY_MOTION_SENSOR % i] = False
        super().__init__(
            mqtt_client, topic,
            (self.KEY_STATE, sw_device, sw_key),
            (self.KEY_TIMER, motion_function, motion_function.KEY_TIMER),
            *[[self.KEY_MOTION_SENSOR % i, motion_function, motion_function.KEY_MOTION_SENSOR % i] for i in range(0, len(motion_function.args))],
            default_values=dv
        )


class videv_switch_brightness(base_routing):
    KEY_STATE = 'state'
    KEY_BRIGHTNESS = 'brightness'
    #
    DEFAULT_VALUES = {
        KEY_STATE: False,
        KEY_BRIGHTNESS: 0
    }

    def __init__(self, mqtt_client, topic, sw_device, sw_key, br_device, br_key):
        #
        super().__init__(mqtt_client, topic, (self.KEY_STATE, sw_device, sw_key), (self.KEY_BRIGHTNESS, br_device, br_key))


class videv_switch_brightness_color_temp(base_routing):
    KEY_STATE = 'state'
    KEY_BRIGHTNESS = 'brightness'
    KEY_COLOR_TEMP = 'color_temp'
    #
    DEFAULT_VALUES = {
        KEY_STATE: False,
        KEY_BRIGHTNESS: 0,
        KEY_COLOR_TEMP: 0,
    }

    def __init__(self, mqtt_client, topic, sw_device, sw_key, br_device, br_key, ct_device, ct_key):
        #
        super().__init__(
            mqtt_client, topic,
            (self.KEY_STATE, sw_device, sw_key),
            (self.KEY_BRIGHTNESS, br_device, br_key),
            (self.KEY_COLOR_TEMP, ct_device, ct_key)
        )


class videv_heating(base_routing):
    KEY_TEMPERATURE = 'temperature'
    KEY_USER_TEMPERATURE_SETPOINT = 'user_temperature_setpoint'
    KEY_VALVE_TEMPERATURE_SETPOINT = 'valve_temperature_setpoint'
    KEY_AWAY_MODE = 'away_mode'
    KEY_SUMMER_MODE = 'summer_mode'
    KEY_START_BOOST = 'start_boost'
    KEY_SET_DEFAULT_TEMPERATURE = 'set_default_temperature'
    KEY_BOOST_TIMER = 'boost_timer'
    #
    EXEC_RX_FUNC_ALWAYS = [KEY_START_BOOST, KEY_SET_DEFAULT_TEMPERATURE, KEY_USER_TEMPERATURE_SETPOINT]

    def __init__(self, mqtt_client, topic, heating_function):
        #
        super().__init__(
            mqtt_client, topic,
            (self.KEY_TEMPERATURE, heating_function, heating_function.KEY_TEMPERATURE_CURRENT),
            (self.KEY_USER_TEMPERATURE_SETPOINT, heating_function, heating_function.KEY_USER_TEMPERATURE_SETPOINT),
            (self.KEY_VALVE_TEMPERATURE_SETPOINT, heating_function, heating_function.KEY_TEMPERATURE_SETPOINT),
            (self.KEY_AWAY_MODE, heating_function, heating_function.KEY_AWAY_MODE),
            (self.KEY_SUMMER_MODE, heating_function, heating_function.KEY_SUMMER_MODE),
            (self.KEY_START_BOOST, heating_function, heating_function.KEY_START_BOOST),
            (self.KEY_SET_DEFAULT_TEMPERATURE, heating_function, heating_function.KEY_SET_DEFAULT_TEMPERATURE),
            (self.KEY_BOOST_TIMER, heating_function, heating_function.KEY_BOOST_TIMER),
            default_values={
                self.KEY_TEMPERATURE: heating_function[heating_function.KEY_TEMPERATURE_CURRENT],
                self.KEY_VALVE_TEMPERATURE_SETPOINT: heating_function[heating_function.KEY_TEMPERATURE_SETPOINT],
                self.KEY_USER_TEMPERATURE_SETPOINT: heating_function[heating_function.KEY_USER_TEMPERATURE_SETPOINT],
                self.KEY_AWAY_MODE: heating_function[heating_function.KEY_AWAY_MODE],
                self.KEY_SUMMER_MODE: heating_function[heating_function.KEY_SUMMER_MODE],
                self.KEY_BOOST_TIMER: heating_function[heating_function.KEY_BOOST_TIMER],
                self.KEY_START_BOOST: True,
                self.KEY_SET_DEFAULT_TEMPERATURE: True,
            }
        )


class videv_multistate(base):
    def __init__(self, mqtt_client, topic, key_for_device, device, num_states, default_values=None):
        dv = dict.fromkeys(["state_%d" % i for i in range(0, num_states)])
        for key in dv:
            dv[key] = False
        super().__init__(mqtt_client, topic, (key_for_device, device), default_values=dv)
        #
        device.add_callback(key_for_device, None, self.__index_rx__, True)

    def __index_rx__(self, device, key, data):
        for index, key in enumerate(self):
            self.set(key, index == data)
            self.__tx__(key, self[key])


class videv_audio_player(base_routing):
    KEY_ACTIVE_PLAYER = 'player_%d'
    KEY_TITLE = 'title'
    NO_TITLE = '---'

    def __init__(self, mqtt_client, topic, *args):
        dv = dict.fromkeys([self.KEY_ACTIVE_PLAYER % i for i in range(0, len(args))])
        for key in dv:
            dv[key] = False
        dv[self.KEY_TITLE] = self.NO_TITLE
        super().__init__(
            mqtt_client, topic,
            *[[self.KEY_ACTIVE_PLAYER % i, device, devices.audio_status.KEY_STATE] for i, device in enumerate(args)],
            default_values=dv
        )
        for audio_device in args:
            audio_device.add_callback(audio_device.KEY_TITLE, None, self.__title_rx__, True)

    def __title_rx__(self, device, key, data):
        self.set(self.KEY_TITLE, data or self.NO_TITLE)
        self.__tx__(self.KEY_TITLE, self[self.KEY_TITLE])