terrariumArea.py

# -*- coding: utf-8 -*-
import terrariumLogging

logger = terrariumLogging.logging.getLogger(__name__)

import copy
import datetime
import time

import statistics
import threading

# http://brettbeauregard.com/blog/2011/04/improving-the-beginners-pid-introduction/
# https://onion.io/2bt-pid-control-python/
# https://github.com/m-lundberg/simple-pid
from simple_pid import PID

from pony import orm
from terrariumAudio import terrariumAudioPlayer
from terrariumDatabase import Sensor, Playlist, Relay, Button, Area
from terrariumUtils import terrariumCache, terrariumUtils, classproperty


class terrariumAreaException(TypeError):
    """There is a problem with loading a hardware sensor."""


class terrariumArea(object):
    __TYPES = {
        "lights": {"name": _("Lighting"), "sensors": [], "class": lambda: terrariumAreaLights},
        "heating": {"name": _("Heating"), "sensors": ["temperature"], "class": lambda: terrariumAreaHeater},
        "cooling": {"name": _("Cooling"), "sensors": ["temperature"], "class": lambda: terrariumAreaCooler},
        "humidity": {
            "name": _("Humidity"),
            "sensors": ["humidity", "moisture"],
            "class": lambda: terrariumAreaHumidity,
        },
        "watertank": {"name": _("Water tank"), "sensors": ["distance"], "class": lambda: terrariumAreaWatertank},
        "audio": {"name": _("Audio"), "sensors": [], "class": lambda: terrariumAreaAudio},
        "co2": {"name": _("CO2"), "sensors": ["co2"], "class": lambda: terrariumAreaCO2},
        "conductivity": {
            "name": _("Conductivity"),
            "sensors": ["conductivity"],
            "class": lambda: terrariumAreaConductivity,
        },
        "fertility": {"name": _("Fertility"), "sensors": ["fertility"], "class": lambda: terrariumAreaFertility},
        "moisture": {
            "name": _("Moisture"),
            "sensors": ["moisture", "humidity"],
            "class": lambda: terrariumAreaMoisture,
        },
        "ph": {"name": _("pH"), "sensors": ["ph"], "class": lambda: terrariumAreaPH},
    }

    PERIODS = ["low", "high"]

    @classproperty
    def available_areas(__cls__):
        return [
            {"type": area_type, "name": area["name"], "sensors": area["sensors"]}
            for area_type, area in terrariumArea.__TYPES.items()
        ]

    # Return polymorph area....
    def __new__(cls, area_id, enclosure, area_type, name="", mode=None, setup=None):
        try:
            return super(terrariumArea, cls).__new__(terrariumArea.__TYPES[area_type]["class"]())
        except:
            raise terrariumAreaException(f"Area of type {area_type} is unknown.")

    def __init__(self, area_id, enclosure, area_type, name, mode, setup):
        if area_id is None:
            area_id = terrariumUtils.generate_uuid()

        self.id = area_id
        self.type = area_type
        self.name = name
        self.mode = mode

        self.depends_on = []

        self.enclosure = enclosure

        self.state = {}
        self.load_setup(setup)

    def __repr__(self):
        """
        Show the area in a nice way

        Returns:
            string: Area with area type
        """
        return f'{terrariumArea.__TYPES[self.type]["name"]} named \'{self.name}\''

    @property
    def _powered(self):
        powered = None
        for period in self.PERIODS:
            if period not in self.state or self.setup.get(period) is None or len(self.setup[period]["relays"]) == 0:
                continue

            powered = powered or self.state[period]["powered"]

        logger.debug(f"Area {self} is powered: {powered}")
        return powered

    def _time_table(self):
        def make_time_table(begin, end, on_period=0, off_period=0):
            logger.debug(
                f"Make new time table for {self}. Begin: {begin}, End: {end}, On: {on_period}, Off: {off_period}"
            )
            periods = []
            duration = 0

            now = datetime.datetime.now()

            if not isinstance(begin, datetime.datetime):
                begin = now.replace(hour=begin.hour, minute=begin.minute, second=begin.second)

            if not isinstance(end, datetime.datetime):
                end = now.replace(hour=end.hour, minute=end.minute, second=end.second)

            if begin >= end:
                logger.debug(f"Begin time is bigger then end time (swap). Add 24 hours to end time (next day) {self}")
                end += datetime.timedelta(hours=24)

            if now < begin - datetime.timedelta(hours=24):
                logger.debug(
                    f"Current time should be running after next day. Period is upcoming. Subtracting 24 hours {self}"
                )
                begin -= datetime.timedelta(hours=24)
                end -= datetime.timedelta(hours=24)
            elif now > end:
                logger.debug(f"Current time past end. Period is pasted. Use next day by adding 24 hours {self}")
                begin += datetime.timedelta(hours=24)
                end += datetime.timedelta(hours=24)

            if 0 == on_period and 0 == off_period:
                logger.debug(f"Area {self} is full period usage")
                periods.append((int(begin.timestamp()), int(end.timestamp())))
                duration += periods[-1][1] - periods[-1][0]

            else:
                logger.debug(f"Area {self} has different periods")
                while begin < end:
                    # The 'on' period is to big for the rest of the total timer time. So reduce it to the max left time
                    if (begin + datetime.timedelta(seconds=on_period)) > end:
                        on_period = (end - begin).total_seconds()

                    # Add new entry int he time table
                    periods.append(
                        (int(begin.timestamp()), int((begin + datetime.timedelta(seconds=on_period)).timestamp()))
                    )
                    duration += periods[-1][1] - periods[-1][0]

                    # Increase the start time with the on and off duration for the next round
                    begin += datetime.timedelta(seconds=on_period + off_period)

            data = {"periods": periods, "duration": duration}
            logger.debug(f"New time table for {self}")
            logger.debug(data)

            return data

        timetable = {}
        if "main_lights" == self.mode:
            # We copy the timetable from the area with the toggle 'main lights' on. We follow that area its timetable
            main_lights = self.enclosure.main_lights
            if main_lights is not None:
                for period in self.PERIODS:
                    if period not in self.setup:
                        continue

                    self.setup[period]["timetable"] = copy.deepcopy(
                        main_lights.setup["day" if "low" == period else "night"]["timetable"]
                    )

                    self.state[period]["begin"] = main_lights.state["day" if "low" == period else "night"]["begin"]
                    self.state[period]["end"] = main_lights.state["day" if "low" == period else "night"]["end"]
                    self.state[period]["duration"] = main_lights.state["day" if "low" == period else "night"][
                        "duration"
                    ]

            return True

        if "weather" == self.mode or "weather_inverse" == self.mode:
            sunrise = (
                self.enclosure.weather.sunrise
                if "weather" == self.mode
                else self.enclosure.weather.sunset - datetime.timedelta(hours=24)
            )
            sunset = self.enclosure.weather.sunset if "weather" == self.mode else self.enclosure.weather.sunrise

            next_sunrise = (
                self.enclosure.weather.next_sunrise
                if "weather" == self.mode
                else self.enclosure.weather.next_sunset - datetime.timedelta(hours=24)
            )
            next_sunset = (
                self.enclosure.weather.next_sunset if "weather" == self.mode else self.enclosure.weather.next_sunrise
            )

            max_hours = self.setup["max_day_hours"]
            if max_hours != 0 and (sunset - sunrise) > datetime.timedelta(hours=max_hours):
                # On period to long, so reduce the on period by shifting the sunrise and sunset times closer to each other
                seconds_difference = ((sunset - sunrise) - datetime.timedelta(hours=max_hours)) / 2
                sunrise += seconds_difference
                sunset -= seconds_difference

            if max_hours != 0 and (next_sunset - next_sunrise) > datetime.timedelta(hours=max_hours):
                # On period to long, so reduce the on period by shifting the sunrise and sunset times closer to each other
                seconds_difference = ((next_sunset - next_sunrise) - datetime.timedelta(hours=max_hours)) / 2
                next_sunrise += seconds_difference
                next_sunset -= seconds_difference

            min_hours = self.setup["min_day_hours"]
            if min_hours != 0 and (sunset - sunrise) < datetime.timedelta(hours=min_hours):
                # On period to short, so extend the on period by shifting the sunrise and sunset times away from to each other
                seconds_difference = (datetime.timedelta(hours=min_hours) - (sunset - sunrise)) / 2
                sunrise -= seconds_difference
                sunset += seconds_difference

            if min_hours != 0 and (next_sunset - next_sunrise) < datetime.timedelta(hours=min_hours):
                # On period to short, so extend the on period by shifting the sunrise and sunset times away from to each other
                seconds_difference = (datetime.timedelta(hours=min_hours) - (next_sunset - next_sunrise)) / 2
                next_sunrise -= seconds_difference
                next_sunset += seconds_difference

            shift_hours = self.setup["shift_day_hours"]
            if shift_hours != 0:
                # Shift the times back or forth...
                sunrise += datetime.timedelta(hours=shift_hours)
                sunset += datetime.timedelta(hours=shift_hours)

                next_sunrise += datetime.timedelta(hours=shift_hours)
                next_sunset += datetime.timedelta(hours=shift_hours)

            # Default day and night schedule:
            timetable["day"] = make_time_table(sunrise, sunset)
            timetable["night"] = make_time_table(sunset, next_sunrise)

            # Pick the next day
            if datetime.datetime.now() > sunset:
                timetable["day"] = make_time_table(next_sunrise, next_sunset)

            # Night is still active till sunrise
            if datetime.datetime.now() < sunrise:
                timetable["night"] = make_time_table(sunset - datetime.timedelta(hours=24), sunrise)

        elif "timer" == self.mode:
            for period in self.PERIODS:
                if period not in self.setup:
                    continue

                begin = None
                try:
                    begin = datetime.time.fromisoformat(self.setup[period]["begin"])
                except Exception as ex:
                    logger.exception(f'Error loading begin time: {self.setup[period]["begin"]} - {ex}')

                end = None
                try:
                    end = datetime.time.fromisoformat(self.setup[period]["end"])
                except Exception as ex:
                    logger.exception(f'Error loading end time: {self.setup[period]["end"]} - {ex}')

                if begin is None or end is None:
                    logger.warning("Error generating timer periods. Either begin or end time is incorrect.")
                    continue

                on_period = max(0.0, self.setup[period]["on_duration"]) * 60.0
                off_period = max(0.0, self.setup[period]["off_duration"]) * 60.0

                timetable[period] = make_time_table(begin, end, on_period, off_period)

        for period in timetable:
            if period not in self.setup:
                continue

            self.setup[period]["timetable"] = copy.deepcopy(timetable[period]["periods"])

            self.state[period]["begin"] = self.setup[period]["timetable"][0][0]
            self.state[period]["end"] = self.setup[period]["timetable"][-1][1]
            self.state[period]["duration"] = timetable[period]["duration"]

        return True

    def load_setup(self, data):
        self.setup = copy.deepcopy(data)
        self.setup["day_night_difference"] = (
            0.0
            if not terrariumUtils.is_float(self.setup.get("day_night_difference"))
            else float(self.setup.get("day_night_difference"))
        )
        if self.state.get("last_update", None) is None:
            self.state = {
                "is_day": self.setup.get("is_day", None),
                "last_update": int(datetime.datetime(1970, 1, 1).timestamp()),
                "powered": None,
            }

        self.depends_on = self.setup.get("depends_on", [])
        self.ignore_low_alarm = False
        self.ignore_high_alarm = False

        try:
            self.ignore_low_alarm = bool(self.setup["low"]["ignore_low"])
        except Exception:
            self.ignore_low_alarm = False

        try:
            self.ignore_high_alarm = bool(self.setup["high"]["ignore_high"])
        except Exception:
            self.ignore_high_alarm = False

        self.low_deviation = self.setup.get("deviation_low_alarm", 0.0)
        self.low_deviation = 0.0 if not terrariumUtils.is_float(self.low_deviation) else float(self.low_deviation)
        self.high_deviation = self.setup.get("deviation_high_alarm", 0.0)
        self.high_deviation = 0.0 if not terrariumUtils.is_float(self.high_deviation) else float(self.high_deviation)

        float_values = ["max_day_hours", "min_day_hours", "shift_day_hours"]
        for float_value in float_values:
            self.setup[float_value] = self.setup.get(float_value, 0.0)
            self.setup[float_value] = (
                0.0 if not terrariumUtils.is_float(self.setup[float_value]) else float(self.setup[float_value])
            )

        for period in self.PERIODS:
            # Clean up parts that do not have relays configured)
            if period in self.setup and len(self.setup[period]["relays"]) == 0:
                del self.setup[period]
                continue

            # With version 4.6.0 we get also empty string fields back. So we have to make sure that the fields in the list below are all float values
            float_values = ["on_duration", "off_duration", "settle_time", "power_on_time", "alarm_threshold"]
            for float_value in float_values:
                self.setup[period][float_value] = self.setup[period].get(float_value, 0.0)
                self.setup[period][float_value] = (
                    0.0
                    if not terrariumUtils.is_float(self.setup[period][float_value])
                    else float(self.setup[period][float_value])
                )

            self.setup[period]["tweaks"] = {}

            if period not in self.state:
                self.state[period] = {}
                self.state[period]["last_powered_on"] = 0

            self.state[period]["powered"] = self.relays_state(period)
            self.state[period]["alarm_count"] = 0

        if "sensors" != self.mode:
            self._time_table()

        # Setup variation data
        if self.setup.get("variation"):
            self._setup_variation_data()

        self.state["powered"] = self._powered

    def _setup_variation_data(self):
        self.state["variation"] = {
            "active": len(self.setup["sensors"]) > 0,
            "dynamic": False,
            "external": False,
            "script": False,
            "weather": False,
            "offset": float(0),
            "source": None,
            "periods": [],
        }

        variation_data = copy.deepcopy(self.setup.get("variation", []))
        if len(variation_data) == 0:
            return

        if variation_data[0]["when"] in ["script", "external", "weather"]:
            try:
                self.state["variation"]["offset"] = float(variation_data[0]["offset"])
            except Exception as ex:
                # Not a valid float, so use default 0
                logger.debug(f'Invalid variation offset value {variation_data[0]["offset"]}: {ex}')

            self.state["variation"][variation_data[0]["when"]] = True
            if "weather" != variation_data[0]["when"]:
                self.state["variation"]["source"] = variation_data[0]["source"]

            if "external" == variation_data[0]["when"]:
                self.__external_cache = terrariumCache()

            variation_data = []

        for variation in variation_data:
            if "" == variation.get("value", ""):
                continue

            periods = len(self.state["variation"]["periods"])

            if "at" == variation.get("when"):
                # Format datetime object to a time object

                # TODO: Need to check if this will interfere with utc timestamps from history...
                period_timestamp = datetime.datetime.fromtimestamp(int(variation.get("period"))).strftime("%H:%M")

            elif "after" == variation.get("when"):
                # !! UNTESTED !!
                if periods == 0:
                    # We need main lights on starting time....
                    self.state["variation"]["dynamic"] = True

                else:
                    # We need the previous period start time and adding the 'after' period duration
                    period_timestamp = datetime.time.fromisoformat(
                        self.state["variation"]["periods"][periods - 1]["start"]
                    )
                    period_timestamp = datetime.datetime.now().replace(
                        hour=period_timestamp.hour, minute=period_timestamp.minute
                    ) + datetime.timeldeta(minute=int(variation.get("period")))
                    period_timestamp = period_timestamp.strftime("%H:%M")

            if periods > 0:
                # We have at least 1 item so we need to update the previous entry with the new end time and value
                self.state["variation"]["periods"][periods - 1]["end"] = period_timestamp
                self.state["variation"]["periods"][periods - 1]["end_value"] = str(variation.get("value"))

            self.state["variation"]["periods"].append(
                {
                    "start": period_timestamp,
                    "end": "23:59",  # By default, we stop at the end of the day
                    "start_value": str(variation.get("value")),
                    "end_value": str(
                        variation.get("value")
                    ),  # This will be overwritten by the next value to get a nice change during the period
                }
            )

    def _is_timer_time(self, period):
        if period not in self.setup or "timetable" not in self.setup[period]:
            logger.debug(f"Area {self} does not have a timer table")
            return False

        now = int(datetime.datetime.now().timestamp())
        for time_schedule in self.setup[period]["timetable"]:
            if now < time_schedule[0]:
                logger.debug(f"Area {self} is not time yet. Period has to start first.")
                return False

            elif time_schedule[0] <= now < time_schedule[1]:
                logger.debug(
                    f"Area {self} is in period, so toggle on: {time_schedule[0]} <= {now} <= {time_schedule[1]}"
                )
                return True

        logger.debug(f"Area {self} does not know if it is time.... Should update new timetable for next day?")
        return None

    def _update_variation(self):
        # !! This variation updates will interfere with the 'day/night difference' setting !!
        if ("variation" not in self.state) or (not self.state["variation"]["active"]):
            return

        # Get the current time in minutes
        now = datetime.datetime.now().time()
        # Loop over the periods to find the current period
        period = None
        if self.state["variation"]["script"] or self.state["variation"]["external"]:
            value = None

            if self.state["variation"]["script"]:
                value = (
                    float(terrariumUtils.get_script_data(self.state["variation"]["source"]))
                    + self.state["variation"]["offset"]
                )

            elif self.state["variation"]["external"]:
                # Here we get data from an external source. We cache this data for 10 minutes
                cache_key = f"{self.id}_external"
                value = self.__external_cache.get_data(cache_key)
                if value is None:
                    start = time.time()
                    value = (
                        float(terrariumUtils.get_remote_data(self.state["variation"]["source"]))
                        + self.state["variation"]["offset"]
                    )
                    if value is not None:
                        unit = self.enclosure.engine.units[self.state["sensors"]["unit"]]
                        self.__external_cache.set_data(cache_key, value, 10 * 60)
                        logger.info(
                            f"Updated external source variation data with value: {value}{unit} in {time.time() - start:.2f} seconds"
                        )
                    else:
                        logger.error("Could not load data from external source! Please check your settings.")

            if value is not None:
                period = {
                    "start": (datetime.datetime.now() - datetime.timedelta(minutes=2)).time(),
                    "end": (
                        datetime.datetime.now() + datetime.timedelta(minutes=2)
                    ).time(),  # By default, we stop at the end of the day
                    "start_value": str(value),
                    "end_value": str(
                        value
                    ),  # This will be overwritten by the next value to get a nice change during the period
                }

        elif self.state["variation"]["weather"]:
            weather_current_source = None
            if self.type in ["heating", "cooling"]:
                weather_current_source = "temperature"
            elif self.type in ["humidity"]:
                weather_current_source = "humidity"

            if weather_current_source is None:
                return

            current_timestamp = int((datetime.datetime.now() - datetime.timedelta(hours=24)).timestamp())
            for counter, history in enumerate(self.enclosure.engine.weather.history):
                if current_timestamp <= history["timestamp"] + time.timezone:
                    period = {
                        "start": datetime.datetime.fromtimestamp(
                            int(self.enclosure.engine.weather.history[counter - 1]["timestamp"] + time.timezone)
                        ),
                        "end": datetime.datetime.fromtimestamp(int(history["timestamp"] + time.timezone)),
                        "start_value": str(self.enclosure.engine.weather.history[counter - 1][weather_current_source]),
                        "end_value": str(history[weather_current_source]),
                    }
                    break

        else:
            for item in self.state["variation"]["periods"]:
                if now >= datetime.time.fromisoformat(item["start"]) and now < datetime.time.fromisoformat(item["end"]):
                    # Fond the right period, so save and stop looping
                    period = copy.copy(item)
                    period["start"] = datetime.time.fromisoformat(item["start"])
                    period["end"] = datetime.time.fromisoformat(item["end"])
                    break

        if period is None:
            # No valid period found, so we are done!
            return

        # Get the current 'wanted' average value based on the alarm min and max values
        current_average_value = (self.state["sensors"]["alarm_min"] + self.state["sensors"]["alarm_max"]) / 2.0

        # Convert relative sensor values to absolute values based on the current state.
        # This is done only once when the period starts. Once converted, we keep the absolute values
        # !! UNTESTED !!
        if period["start_value"].startswith("+"):
            period["start_value"] = current_average_value + int(period["start_value"][1:])

        elif period["start_value"].startswith("-"):
            period["start_value"] = current_average_value - int(period["start_value"][1:])

        if period["end_value"].startswith("+"):
            period["end_value"] = current_average_value + int(period["end_value"][1:])

        elif period["end_value"].startswith("-"):
            period["end_value"] = current_average_value + -int(period["end_value"][1:])

        # Start calculation
        # Get the total duration of the period in seconds
        period_duration = round(
            (
                datetime.datetime.now().replace(hour=period["end"].hour, minute=period["end"].minute)
                - datetime.datetime.now().replace(hour=period["start"].hour, minute=period["start"].minute)
            ).total_seconds()
        )
        # Get the total difference that needs to change during the period
        period_difference = float(period["end_value"]) - float(period["start_value"])
        # How far are we in this period in seconds
        period_duration_done = round(
            (
                datetime.datetime.now().replace(hour=now.hour, minute=now.minute)
                - datetime.datetime.now().replace(hour=period["start"].hour, minute=period["start"].minute)
            ).total_seconds()
        )
        # Calculate the wanted average based on the start period value and the time elapsed * sensor difference/second
        wanted_average_value = float(period["start_value"]) + (
            float(period_duration_done) * float(period_difference / period_duration)
        )
        # Get the difference between the actual current average and the wanted average rounded at .1
        sensor_diff = round(wanted_average_value - current_average_value, 1)

        if sensor_diff != 0.0:
            # Change every sensor its min max alarm values with `sensor_diff` change
            with orm.db_session():
                for sensor in Sensor.select(lambda s: s.id in self.setup["sensors"]):
                    sensor.alarm_min += sensor_diff
                    sensor.alarm_max += sensor_diff
                    unit = self.enclosure.engine.units[self.state["sensors"]["unit"]]
                    logger.info(
                        f"Variation change {sensor.type} sensor '{sensor.name}' for area '{self.name}'. New values min: {sensor.alarm_min:.2f}{unit}, max:{sensor.alarm_max:.2f}{unit}. New average is: {wanted_average_value:.2f}{unit}."
                    )

        # Reload the current sensor values after changing them
        self.state["sensors"] = self.current_value(self.setup["sensors"])

    def depending_relays_ok(self, part):
        depending_relays = self.setup[part].get("depend_on_relays", [])

        if len(depending_relays) == 0:
            return True

        mode = self.setup[part].get("depend_on_relays_mode", None)

        if mode is None:
            return False

        relays_status = []
        for relay in depending_relays:
            if relay not in self.enclosure.engine.relays:
                relays_status.append(False)
            else:
                relays_status.append(self.enclosure.engine.relays[relay].is_on())

        if mode == "all":
            return all(relays_status)

        elif mode == "one":
            return True in relays_status

        elif mode == "none":
            return not all(relays_status)

        return True

    @property
    def is_day(self):
        light_mode = self.setup.get("day_night_source", "")

        # Base day time on weather information
        if "weather" == light_mode and self.enclosure.weather is not None:
            return self.enclosure.weather.is_day

        # Else we have to see if we are between the begin and end time of the 'main lights' light area
        if (
            "lights" == light_mode
            and self.enclosure.main_lights is not None
            and self.enclosure.main_lights.mode != "disabled"
        ):
            is_day_time = (
                self.enclosure.main_lights.state["day"]["begin"]
                < int(datetime.datetime.now().timestamp())
                < self.enclosure.main_lights.state["day"]["end"]
            )
            return is_day_time

        # Default day period is from 07:00 till 19:00
        return 700 < int(time.strftime("%H%M")) < 1900

    def update(self, read_only=False):
        if self.mode == "disabled":
            # Make it readonly, so sensors and relay changes are still shown
            read_only = True

        start = time.time()

        light_state = "on" if self.enclosure.lights_on else "off"
        door_state = "closed" if self.enclosure.door_closed else "open"

        old_is_day = self.state["is_day"]
        self.state["is_day"] = self.is_day

        if "variation" in self.state and self.state["variation"]["dynamic"]:
            if old_is_day != self.state["is_day"] or int(datetime.datetime.now().strftime("%H%M")) % 400 == 0:
                # logger.info('Updating variation data based on day/night change or modulo 400')
                self._setup_variation_data()

        if "sensors" in self.setup and len(self.setup["sensors"]) > 0:
            # Change the sensor limits when changing from day to night and vs.
            if old_is_day != self.state["is_day"] and self.setup["day_night_difference"] != 0.0:
                difference = self.setup["day_night_difference"] * (-1.0 if self.state["is_day"] else 1.0)
                logger.info(
                    f'Adjusting the sensors based on day/night difference. Changing by {difference} going from {("day" if old_is_day else "night")} to {("day" if self.state["is_day"] else "night")}'
                )

                with orm.db_session():
                    for sensor in Sensor.select(lambda s: s.id in self.setup["sensors"]):
                        sensor.alarm_min += difference
                        sensor.alarm_max += difference

            # If there are sensors in use, calculate the current values
            self.state["sensors"] = self.current_value(self.setup["sensors"])

            # If there are variations on the alarm values, update them here
            if not read_only:
                self._update_variation()

            # Deviation calculation is done in current_value() function
            if self.ignore_low_alarm:
                # Use the max alarm value to changing the relays
                self.state["sensors"]["alarm_low"] = (
                    self.state["sensors"]["current"] < self.state["sensors"]["alarm_max"]
                )
            else:
                # Normal state
                self.state["sensors"]["alarm_low"] = (
                    self.state["sensors"]["current"] < self.state["sensors"]["alarm_min"]
                )

            if self.ignore_high_alarm:
                # Use the min alarm value to changing the relays
                self.state["sensors"]["alarm_high"] = (
                    self.state["sensors"]["current"] > self.state["sensors"]["alarm_min"]
                )
            else:
                self.state["sensors"]["alarm_high"] = (
                    self.state["sensors"]["current"] > self.state["sensors"]["alarm_max"]
                )

        # If the depending area is in alarm state, we cannot toggle this area and all the relays should be shutdown
        depends_on_alarm = False
        for area in self.depends_on:
            if area in self.enclosure.areas and self.enclosure.areas[area].state.get("sensors"):
                depends_on_alarm = depends_on_alarm or self.enclosure.areas[area].state["sensors"]["alarm"]
                if depends_on_alarm:
                    unit_value = self.enclosure.engine.units[self.enclosure.areas[area].state["sensors"]["unit"]]
                    logger.info(
                        f'Depending area {self.enclosure.areas[area].name} is in alarm state for area {self}. Current: {self.enclosure.areas[area].state["sensors"]["current"]:.2f}{unit_value}'
                    )

                    for period in self.PERIODS:
                        if period in self.setup and self.relays_state(period):
                            logger.info(
                                f"Toggle down the power for period {period} due to depending area {self.enclosure.areas[area].name} alarm state."
                            )
                            self.relays_toggle(period, False)

                    break

        for period in self.PERIODS:
            if period not in self.setup:
                continue

            if read_only:
                self.state[period]["powered"] = self.relays_state(period)
                continue

            # Set the lights state. Default True
            light_state_ok = True
            if "light_status" in self.setup[period] and self.setup[period]["light_status"] not in ["ignore", ""]:
                # Change the lights state based on the current state and requested state. False when not equal
                light_state_ok = self.setup[period]["light_status"] == light_state

            # Set the doors state. Default True
            door_state_ok = True
            if "door_status" in self.setup[period] and self.setup[period]["door_status"] not in ["ignore", ""]:
                # Change the doors state based on the current state and requested state. False when not equal
                door_state_ok = self.setup[period]["door_status"] == door_state

            # Set depending relays state
            depending_relays_ok = self.depending_relays_ok(period)

            # First check: Shutdown power when power is on and either the lights or doors are in wrong state. Despite 'mode'
            if not self.relays_state(period, False) and not (
                light_state_ok and door_state_ok and depending_relays_ok and (not depends_on_alarm)
            ):
                # Power is on, but either the lights or doors are in wrong state. Power down now.
                logger.info(
                    f'Forcing down the {period} power for area {self} because either the lights({"OK" if light_state_ok else "ERROR"}), doors({"OK" if door_state_ok else "ERROR"}) or depending area ({"OK" if not depends_on_alarm else "ERROR"}) are in an invalid state.'
                )
                self.relays_toggle(period, False)
                # And ignore the rest....
                continue

            if "sensors" != self.mode:
                # Weather(inverse) and timer mode
                toggle_relay = self._is_timer_time(period)
                logger.debug(f"Need to toggle the relays for {self} period {period}? {toggle_relay}")

                if toggle_relay is None:
                    logger.info(f"Refreshing timer table for {self} period: {period}")
                    self._time_table()
                    toggle_relay = False

                if toggle_relay is True and len(self.setup.get("sensors", [])) > 0:
                    # We are in timer mode. But when there are sensors configured, they act as a second check
                    # If there is NOT an alarm with the period name, then skip the toggle action.
                    if self.state["sensors"][f"alarm_{period}"] is not True:
                        try:
                            logger.info(
                                f'Relays for area {self} at period {period} are not switched because the additional sensors are at value: {self.state["sensors"]["current"]:.2f}{self.enclosure.engine.units[self.state["sensors"]["unit"]]}.'
                            )
                        except:
                            # Some strange happens when data is deleted which should not be deleted #827
                            pass

                        continue
            else:
                if self.state["sensors"]["all_error"]:
                    logger.warning(
                        f"All sensors for area {self} at period {period} are in an error state. Relays will not power on! Please check you sensors hardware!"
                    )
                    if self.relays_state(period):
                        logger.warning(
                            f"Relays for area {self} at period {period} are forced to state off due to non working sensors."
                        )
                        self.relays_toggle(period, False)

                    # And ignore the rest....
                    continue

                # Sensor mode only toggle ON when alarms are triggered (True).
                toggle_relay = self.state["sensors"][f"alarm_{period}"]
                if toggle_relay is False:
                    other_alarm = self.state["sensors"][f'alarm_{("low" if period == "high" else "high")}']
                    toggle_relay = False if other_alarm else None

            if toggle_relay is True and not self.relays_state(period):
                if not light_state_ok:
                    logger.info(
                        f'Relays for {self} period {period} are not switched on because the lights are {light_state} while {self.setup[period]["light_status"]} is requested.'
                    )
                    continue

                if not door_state_ok:
                    logger.info(
                        f'Relays for {self} period {period} are not switched on because the door is {door_state} while {self.setup[period]["door_status"]} is requested.'
                    )
                    continue

                if not depending_relays_ok:
                    logger.info(
                        f"Relays for {self} period {period} are not switched on because the depending relays are not in the correct state."
                    )
                    continue

                if depends_on_alarm:
                    logger.info(
                        f"Relays for {self} period {period} are not switched on because at least one of the depending areas is in an alarm state."
                    )
                    continue

                time_elapsed = abs(int(datetime.datetime.now().timestamp()) - self.state[period]["last_powered_on"])
                # Extra weather check / backup
                if self.mode in ["weather", "weather_inverse"] and time_elapsed < (15 * 60):
                    # Not allowed to toggle for 15 minutes after shutting down based on weather(inverse) mode
                    # This is a poor fix for wrongly recalculating time tables based on weather data
                    continue

                if time_elapsed <= self.setup[period]["settle_time"]:
                    logger.info(
                        f'Relays for {self} period {period} are not switched on because we have to wait for {self.setup[period]["settle_time"]-time_elapsed} more seconds of the total settle time of {self.setup[period]["settle_time"]} seconds.'
                    )
                    continue

                other_period = list(self.setup.keys())
                other_period.remove(period)
                if 1 == len(other_period):
                    other_period = other_period[0]
                    time_elapsed = abs(
                        int(datetime.datetime.now().timestamp()) - self.state[other_period]["last_powered_on"]
                    )
                    if time_elapsed <= self.setup[other_period]["settle_time"]:
                        logger.info(
                            f'Relays for {self} period {period} are not switched on because of the other period {other_period} settle time. We have to wait for {self.setup[other_period]["settle_time"]-time_elapsed} more seconds of the total settle time of {self.setup[other_period]["settle_time"]} seconds.'
                        )
                        continue

                if self.state[period]["alarm_count"] < self.setup[period]["alarm_threshold"]:
                    logger.info(
                        f'The alarm counter ({self.state[period]["alarm_count"]}) for area {self} for alarm {period} is lower than the threshold ({self.setup[period]["alarm_threshold"]}). Skip this round.'
                    )
                    self.state[period]["alarm_count"] += 1
                    continue

                self.state[period]["alarm_count"] = 0
                self.relays_toggle(period, True)

            elif (
                toggle_relay is False
                and not self.relays_state(period, False)
                and not self.state[period].get("timer_on", False)
            ):
                self.relays_toggle(period, False)

            self.state[period]["powered"] = self.relays_state(period)

        self.state["powered"] = self._powered
        self.state["last_update"] = int(datetime.datetime.now().timestamp())

        logger.info(
            f"Updated area {self} in '{self.mode}' mode at enclosure {self.enclosure.name} in {time.time()-start:.2f} seconds."
        )
        return self.state

    def current_value(self, sensors):
        sensor_values = {"current": [], "alarm_max": [], "alarm_min": []}

        unit_type = None
        all_error = None
        with orm.db_session():
            for sensor in Sensor.select(lambda s: s.id in sensors):
                unit_type = sensor.type
                if sensor.value is None:
                    # Broken sensor, so ignore it
                    if all_error is None:
                        all_error = True
                    continue

                sensor_values["current"].append(sensor.value)
                sensor_values["alarm_max"].append(sensor.alarm_max)
                sensor_values["alarm_min"].append(sensor.alarm_min)
                all_error = False

        for key in sensor_values:
            if len(sensor_values[key]) == 0:
                sensor_values[key] = 0
            else:
                sensor_values[key] = statistics.mean(sensor_values[key])

        sensor_values["alarm_min"] += self.low_deviation
        sensor_values["alarm_max"] += self.high_deviation
        sensor_values["alarm"] = (
            not sensor_values["alarm_min"] <= sensor_values["current"] <= sensor_values["alarm_max"]
        )

        sensor_values["unit"] = unit_type
        sensor_values["all_error"] = all_error == True

        return sensor_values

    def relays_state(self, part, state=True):
        old_state = self.state[part].get("powered", None)

        relay_states = []
        for relay in self.setup[part]["relays"]:
            if relay not in self.enclosure.relays:
                continue

            if state:
                relay_states.append(self.enclosure.relays[relay].is_on())
            else:
                relay_states.append(self.enclosure.relays[relay].is_off())

        new_state = all(relay_states)
        if (state is False and old_state is True and new_state is True) or (
            state is True and old_state is True and new_state is False
        ):
            # Somewhere the power is turned off. Store the time for settle calculation
            self.state[part]["last_powered_on"] = int(datetime.datetime.now().timestamp())

        return new_state

    def relays_toggle(self, part, on):
        log_line = f'Toggle the relays for area {self} part {part} to state {("on" if on else "off")}'
        power_on_time = self.setup[part].get("power_on_time", 0.0)
        if on and power_on_time > 0.0:
            log_line += f" and switch back to state off after {power_on_time} seconds"
            self.state[part]["timer_on"] = True
            threading.Timer(power_on_time, self.relays_toggle, [part, False]).start()

        logger.info(f"{log_line}.")

        relays = []
        with orm.db_session():
            relays = orm.select(r.id for r in Relay if r.id in self.setup[part]["relays"] and not r.manual_mode)[:]

        for relay in relays:
            if relay not in self.enclosure.relays:
                continue

            relay = self.enclosure.relays[relay]
            self._relay_action(part, relay, on)

        if not on:
            self.state[part]["last_powered_on"] = int(datetime.datetime.now().timestamp())
            self.state[part]["timer_on"] = False

        self.state[part]["powered"] = on
        self.state["powered"] = self._powered

    def _relay_action(self, part, relay, action):
        if relay.id in self.enclosure.relays:
            logger.info(f"Set the relay {relay.name} to {relay.ON if action else relay.OFF}")
            self.enclosure.relays[f"{relay.id}"].on(relay.ON if action else relay.OFF)

    def stop(self):
        logger.info(f"Stopped Area {self}")


class terrariumAreaLights(terrariumArea):
    PERIODS = ["day", "night"]

    def _relay_action(self, part, relay, action):
        if relay.id not in self.enclosure.relays:
            return

        duration = 0
        delay = 0

        try:
            tweaks = self.setup[part]["tweaks"][f"{relay.id}"]["on" if action else "off"]
            duration = tweaks["duration"]
            delay = tweaks["delay"]
        except Exception as ex:
            logger.debug(f'Could not find the tweaks: {relay.id}, state {"on" if action else "off"}, error: {ex}')

        if (relay.ON if action else relay.OFF) != relay.state and self.state[part]["powered"] == action:
            delay = 0

        if relay.is_dimmer:
            step_size = duration / (relay.ON - relay.OFF)
            duration = step_size * abs((relay.ON if action else relay.OFF) - relay.state)
            old_state = relay.state
            action_ok = self.enclosure.relays[f"{relay.id}"].on(
                relay.ON if action else relay.OFF, duration=duration, delay=delay
            )

            if action_ok:
                if action:
                    logger.info(
                        f"Start the dimmer {relay.name} from {old_state}% to {relay.ON}% in {duration:.2f} seconds with a delay of {delay/60:.2f} minutes"
                    )
                else:
                    logger.info(
                        f"Stopping the dimmer {relay.name} from {old_state}% to {relay.OFF}% in {duration:.2f} seconds with a delay of {delay/60:.2f} minutes"
                    )

        else:
            action_ok = self.enclosure.relays[f"{relay.id}"].on(relay.ON if action else relay.OFF, delay=delay)

            if action_ok:
                logger.info(
                    f"Set the relay {relay.name} to {relay.ON if action else relay.OFF} with a delay of {delay/60:.2f} minutes"
                )

    def load_setup(self, data):
        super().load_setup(data)

        # Check and load optional light detecting sensors
        self.setup["light_sensors"] = []
        if "light_sensors" in data:
            self.setup["light_sensors"] = data["light_sensors"]

        # Load extra tweaks
        for period in self.PERIODS:
            if period not in self.setup:
                continue

            if data[period].get("tweaks", None) in [None, {}]:
                # Legacy tweaks loading
                for relay_id in self.setup[period]["relays"]:
                    relay = self.enclosure.relays[relay_id]

                    extra_tweaks = self.setup[period].get(
                        ("dimmer_duration_" if relay.is_dimmer else "relay_delay_") + "on_" + relay.id, None
                    )
                    if extra_tweaks is None:
                        continue

                    self.setup[period]["tweaks"][f"{relay.id}"] = {
                        "on": {"delay": 0, "duration": 0},
                        "off": {"delay": 0, "duration": 0},
                    }

                    if relay.is_dimmer:
                        values = self.setup[period][
                            ("dimmer_duration_" if relay.is_dimmer else "relay_delay_") + "on_" + relay.id
                        ].split(",")
                        if len(values) == 1:
                            values = [0, values[0]]

                        self.setup[period]["tweaks"][f"{relay.id}"]["on"]["delay"] = float(values[0]) * 60.0
                        self.setup[period]["tweaks"][f"{relay.id}"]["on"]["duration"] = float(values[1]) * 60.0

                        values = self.setup[period][
                            ("dimmer_duration_" if relay.is_dimmer else "relay_delay_") + "off_" + relay.id
                        ].split(",")
                        if len(values) == 1:
                            values = [0, values[0]]

                        self.setup[period]["tweaks"][f"{relay.id}"]["off"]["delay"] = float(values[0]) * 60.0
                        self.setup[period]["tweaks"][f"{relay.id}"]["off"]["duration"] = float(values[1]) * 60.0
                    else:
                        value = self.setup[period][
                            ("dimmer_duration_" if relay.is_dimmer else "relay_delay_") + "on_" + relay.id
                        ]
                        self.setup[period]["tweaks"][f"{relay.id}"]["on"]["delay"] = float(value) * 60.0
                        value = self.setup[period][
                            ("dimmer_duration_" if relay.is_dimmer else "relay_delay_") + "off_" + relay.id
                        ]
                        self.setup[period]["tweaks"][f"{relay.id}"]["off"]["delay"] = float(value) * 60.0
            else:
                # New tweaks loading
                tweaks = {}
                for relay in data[period]["tweaks"]:
                    # Input is either a number, or a string with two numbers and a comma separator
                    # We cast value to a string, split it on ',' and convert the values back to integers
                    # We have now an array with 1 or 2 integers
                    value_on = [int(value) for value in str(relay["on"]).split(",")]
                    value_off = [int(value) for value in str(relay["off"]).split(",")]
                    tweaks[f'{relay["id"]}'] = {
                        "on": {
                            "delay": 0 if len(value_on) == 0 else float(value_on[0]) * 60.0,
                            "duration": 0 if len(value_on) == 1 else float(value_on[1]) * 60.0,
                        },
                        "off": {
                            "delay": 0 if len(value_off) == 0 else float(value_off[0]) * 60.0,
                            "duration": 0 if len(value_off) == 1 else float(value_off[1]) * 60.0,
                        },
                    }

                self.setup[period]["tweaks"] = tweaks

        # Reset the powered on state if the dimmers are not at max value. So the dimmer will continue where it left off
        for period in self.PERIODS:
            if period not in self.setup:
                continue

            if self.state[period]["powered"]:
                max_states = []
                if self._is_timer_time(period):
                    for relay in self.setup[period]["relays"]:
                        if relay not in self.enclosure.relays:
                            continue

                        relay = self.enclosure.relays[relay]
                        if relay.is_dimmer:
                            max_states.append(relay.state == relay.ON)

                self.state[period]["powered"] = len(max_states) > 0 and all(max_states)

        self.state["powered"] = self._powered

    def update(self, read_only=False):
        super().update(read_only)

        if read_only or self.mode == "disabled":
            return self.state

        light_sensor = self.light_sensors_on()
        if light_sensor is not None and light_sensor != self.state["day"]["powered"]:
            data = {"current_state": self.state["day"]["powered"], "sensor_state": light_sensor}

            data = {**data, **terrariumUtils.flatten_dict(Area[self.id].to_dict())}
            # Example data:
            # {
            #   "current_state": true,
            #   "sensor_state": false,
            #   "id": "6f2ea912-8ac8-4985-a21d-c2f3686bae62",
            #   "enclosure": "08fba68a-05ff-4ae6-9265-a95c70885c52",
            #   "name": "Day light",
            #   "type": "lights",
            #   "mode": "weather",
            #   "setup_day_begin": "06:15",
            #   "setup_day_end": "20:55",
            #   "setup_day_off_duration": 559.666666666667,
            #   "setup_day_on_duration": 880.333333333333,
            #   "setup_day_relays_0": "379856a83bce28484f1d07bd98c3c108",
            #   "setup_day_relays_1": "a8df016cae5e89a65ba4576d49c676c3",
            #   "setup_day_tweaks_0_id": "379856a83bce28484f1d07bd98c3c108",
            #   "setup_day_tweaks_0_off": 20,
            #   "setup_day_tweaks_0_on": 10,
            #   "setup_day_tweaks_1_id": "a8df016cae5e89a65ba4576d49c676c3",
            #   "setup_day_tweaks_1_off": "0,30",
            #   "setup_day_tweaks_1_on": "23,65",
            #   "setup_light_sensors_0": "5621daae6bbfb47aed28707b3c3d9dfa",
            #   "setup_light_sensors_1": "0f39ec8d27d84c7ea6a7149e7453ca68",
            #   "setup_main_lights": "on",
            #   "setup_max_day_hours": 0,
            #   "setup_min_day_hours": 0,
            #   "setup_night_begin": "20:55",
            #   "setup_night_end": "06:15",
            #   "setup_night_off_duration": 880.333333333333,
            #   "setup_night_on_duration": 559.666666666667,
            #   "setup_night_relays_0": "34c655ec648d0720ef2e259522e70e22",
            #   "setup_night_tweaks_0_id": "34c655ec648d0720ef2e259522e70e22",
            #   "setup_night_tweaks_0_off": 54,
            #   "setup_night_tweaks_0_on": 19,
            #   "setup_shift_day_hours": 0,
            #   "state_day_alarm_count": 0,
            #   "state_day_begin": 1673592972,
            #   "state_day_duration": 34804,
            #   "state_day_end": 1673627776,
            #   "state_day_last_powered_on": 1673625263,
            #   "state_day_powered": true,
            #   "state_is_day": true,
            #   "state_last_update": 1673625520,
            #   "state_night_alarm_count": 0,
            #   "state_night_begin": 1673627776,
            #   "state_night_duration": 51577,
            #   "state_night_end": 1673679353,
            #   "state_night_last_powered_on": -3600,
            #   "state_night_powered": false,
            #   "state_night_timer_on": false,
            #   "state_powered": true
            # }

            logger.warning(
                f'Area {self} lights are at incorrect state based on sensors. Current state {"on" if light_sensor else "off"} where it should be {"off" if light_sensor else "on"}'
            )
            self.enclosure.engine.notification.message("area_lights_incorrect", data)

        return self.state

    def light_sensors_on(self):
        if len(self.setup["light_sensors"]) == 0:
            # No sensors selected, so ignore this test and return None
            logger.debug(f"Area {self} has no light sensors. Ignore light test.")
            return None

        values = {"current": [], "threshold": [], "buttons": []}
        devices = (
            Sensor.select(lambda s: s.id in self.setup["light_sensors"])[:]
            + Button.select(lambda b: b.id in self.setup["light_sensors"])[:]
        )
        for sensor in devices:
            # Sensor needs to be operating correctly
            if (
                sensor.id in self.enclosure.sensors
                and sensor.calibration.get("light_on_off_threshold", False)
                and sensor.error is False
            ):
                values["current"].append(sensor.value)
                values["threshold"].append(sensor.calibration["light_on_off_threshold"])

            elif sensor.id in self.enclosure.buttons and sensor.error is False:
                values["buttons"].append(sensor.value)

        if len(values["current"]) == 0 and len(values["buttons"]) == 0:
            # No valid sensors or buttons, so ignore this test and return None
            logger.debug(f"Area {self} has no valid light sensors. Ignore light test.")
            return None

        # Calculate averages
        if len(values["current"]) > 0:
            values["current"] = statistics.mean(values["current"])
            values["threshold"] = statistics.mean(values["threshold"])
        else:
            del values["current"]
            del values["threshold"]

        if len(values["buttons"]) > 0:
            amount_buttons = len(values["buttons"])
            values["buttons"] = [1 for value in values["buttons"] if value]
            values["buttons"] = len(values["buttons"]) >= amount_buttons / 2.0
        else:
            del values["buttons"]

        if "buttons" not in values:
            return values["current"] >= values["threshold"]
        elif "current" not in values:
            return values["buttons"]
        else:
            return values["current"] >= values["threshold"] and values["buttons"]


class terrariumAreaHeater(terrariumArea):
    def __init__(self, area_id, enclosure, type, name, mode, setup):
        self.__dimmers = {}
        super().__init__(area_id, enclosure, type, name, mode, setup)

    @property
    def _powered(self):
        powered = None
        for period in self.PERIODS:
            if period not in self.state or len(self.setup[period]["relays"]) == 0:
                continue

            powered = powered or (not self.relays_state(period, False))

        return powered

    def load_setup(self, data):
        super().load_setup(data)

        # Restore running dimmers with PID if running in sensor mode
        if "sensors" == self.mode:
            for period in self.PERIODS:
                if period not in self.setup or not self.state[period]["powered"]:
                    continue

                for relay in self.setup[period]["relays"]:
                    if relay not in self.enclosure.relays:
                        continue

                    relay = self.enclosure.relays[relay]
                    if relay.is_dimmer:
                        self._relay_action(period, relay, True)

        self.state["powered"] = self._powered

    def update(self, read_only=False):
        super().update(read_only)

        if not read_only and self.mode != "disabled" and len(self.__dimmers) > 0:
            sensor_values = self.current_value(self.setup["sensors"])
            sensor_average = float(sensor_values["alarm_min"] + sensor_values["alarm_max"]) / 2.0

            for period in self.PERIODS:
                if period not in self.setup:
                    continue

                for relay in self.setup[period]["relays"]:
                    relay = self.enclosure.relays[relay]
                    if relay.id in self.__dimmers:
                        self.__dimmers[f"{relay.id}"].setpoint = sensor_average
                        self.__dimmers[f"{relay.id}"].output_limits = (relay.OFF, relay.ON)

                        dimmer_value = round(self.__dimmers[f"{relay.id}"](sensor_values["current"]))
                        logger.info(
                            f'Updating {relay} to value {dimmer_value}%. Current: {sensor_values["current"]:.2f}{self.enclosure.engine.units[sensor_values["unit"]]}, target: {sensor_average:.2f}{self.enclosure.engine.units[sensor_values["unit"]]}'
                        )
                        self.enclosure.relays[f"{relay.id}"].on(dimmer_value)

        self.state["powered"] = self._powered
        return self.state

    def _relay_action(self, part, relay, action):
        if relay.id in self.enclosure.relays:
            if action:
                if relay.id in self.__dimmers:
                    return

                if relay.is_dimmer and "sensors" == self.mode:
                    sensor_values = self.current_value(self.setup["sensors"])
                    sensor_average = float(sensor_values["alarm_min"] + sensor_values["alarm_max"]) / 2.0
                    settle_time = max(1, self.setup[part]["settle_time"])
                    heating_or_cooling = 1.0 if "low" == part else -1.0
                    unit = self.enclosure.engine.units[sensor_values["unit"]]

                    logger.info(
                        f"Start the dimmer {relay} in PID modus to go to average value {sensor_average}{unit} with a settle timeout of {settle_time} seconds."
                    )
                    self.__dimmers[f"{relay.id}"] = PID(
                        heating_or_cooling * 1,
                        heating_or_cooling * 0.1,
                        heating_or_cooling * 0.05,
                        setpoint=sensor_average,
                        sample_time=settle_time,
                        output_limits=(relay.OFF, relay.ON),
                    )

                    if relay.state > 0:
                        dimmer_value = relay.state
                        logger.info(f"Restoring old dimmer value {dimmer_value}% for relay {relay}")
                        self.__dimmers[f"{relay.id}"].set_auto_mode(True, last_output=dimmer_value)
                    else:
                        dimmer_value = round(self.__dimmers[f"{relay.id}"](sensor_values["current"]))
                        logger.info(
                            f'Setting the dimmer {relay} to value {dimmer_value}%. Current value {sensor_values["current"]}{self.enclosure.engine.units[sensor_values["unit"]]}, target of {sensor_average}{self.enclosure.engine.units[sensor_values["unit"]]}'
                        )

                    self.enclosure.relays[f"{relay.id}"].on(dimmer_value)
                else:
                    logger.info(f"Set the relay {relay} to {relay.ON} with 0 seconds delay")
                    self.enclosure.relays[f"{relay.id}"].on(relay.ON)

            else:
                logger.info(f"Set the relay {relay} to {relay.OFF} with 0 seconds delay")
                self.enclosure.relays[f"{relay.id}"].on(relay.OFF)
                self.state[part]["timer_on"] = False
                if relay.id in self.__dimmers:
                    del self.__dimmers[f"{relay.id}"]


class terrariumAreaCooler(terrariumAreaHeater):
    pass


class terrariumAreaHumidity(terrariumAreaHeater):
    pass


class terrariumAreaMoisture(terrariumAreaHeater):
    pass


class terrariumAreaCO2(terrariumAreaHeater):
    pass


class terrariumAreaConductivity(terrariumAreaHeater):
    pass


class terrariumAreaFertility(terrariumAreaHeater):
    pass


class terrariumAreaPH(terrariumAreaHeater):
    pass


class terrariumAreaWatertank(terrariumArea):
    def current_value(self, sensors):
        # TODO: Check if use of gall and inch does influence this...
        distance = float(self.setup["watertank_height"] - self.setup["watertank_offset"])
        if distance <= 0.0:
            distance = 1.0
        volume_per_distance = self.setup["watertank_volume"] / distance

        sensor_values = {"current": [], "alarm_max": [], "alarm_min": [], "unit": "watertank"}
        for sensor in Sensor.select(lambda s: s.id in sensors):
            if sensor.value is None:
                # Broken sensor, so ignore it
                continue

            sensor_values["current"].append(
                self.setup["watertank_volume"] - (sensor.value - self.setup["watertank_offset"]) * volume_per_distance
            )
            sensor_values["alarm_max"].append(
                self.setup["watertank_volume"]
                - (sensor.alarm_min - self.setup["watertank_offset"]) * volume_per_distance
            )
            sensor_values["alarm_min"].append(
                self.setup["watertank_volume"]
                - (sensor.alarm_max - self.setup["watertank_offset"]) * volume_per_distance
            )

        for key in sensor_values:
            if "unit" == key:
                continue

            sensor_values[key] = 0 if len(sensor_values[key]) == 0 else statistics.mean(sensor_values[key])

        sensor_values["alarm_min"] += self.low_deviation
        sensor_values["alarm_max"] += self.high_deviation
        sensor_values["alarm"] = (
            not sensor_values["alarm_min"] <= sensor_values["current"] <= sensor_values["alarm_max"]
        )

        return sensor_values


class terrariumAreaAudio(terrariumArea):
    PERIODS = ["day", "night"]

    def load_setup(self, data):
        data = copy.deepcopy(data)

        # Rename the playlists variables back to relays so the rest of the code will work...
        data["day"]["relays"] = copy.copy(data["day"]["playlists"])
        data["night"]["relays"] = copy.copy(data["night"]["playlists"])

        del data["day"]["playlists"]
        del data["night"]["playlists"]

        super().load_setup(data)

        for period in self.PERIODS:
            if period not in self.setup:
                continue

            playlists = [playlist for playlist in self.setup[period]["relays"]]
            with orm.db_session():
                playlists = [
                    playlist.to_dict(with_collections=True, related_objects=True)
                    for playlist in Playlist.select(lambda pl: pl.id in playlists)
                ]
                for playlist in playlists:
                    playlist["files"] = [
                        audiofile.to_dict(only="filename")["filename"] for audiofile in playlist["files"]
                    ]

            self.setup[period]["player"] = terrariumAudioPlayer(self.setup["soundcard"], playlists)

    def relays_state(self, period, state=True):
        # We do not check if the player is actual running. This will cause an unwanted repeat functionality
        return period in self.state and self.state[period].get("powered", False)

    def relays_toggle(self, period, on):
        if period not in self.setup:
            return False

        if self.state[period]["powered"] != on:
            logger.info(f'Toggle the player for area {self} period {period} to state {("on" if on else "off")}.')

        if on:
            # As we can only have one player running, we have to make sure that there is not a player still running from the other period
            other_period = copy.copy(self.PERIODS)
            other_period.remove(period)
            other_period = other_period[0]

            if other_period in self.setup and self.state[other_period]["powered"]:
                logger.info(f"Forcing to stop the player for area {self} period {other_period} due to period change.")
                self.setup[other_period]["player"].stop()
                self.state[other_period]["powered"] = False

            self.setup[period]["player"].play()

        else:
            self.setup[period]["player"].stop()

        self.state[period]["powered"] = on
        self.state["powered"] = self._powered

    def stop(self):
        for period in self.PERIODS:
            if period not in self.setup:
                continue

            self.setup[period]["player"].stop()
            self.state[period]["powered"] = False