File: common.py

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"""Use of this source code is governed by the MIT license found in the LICENSE file.

Plugwise Smile protocol helpers.
"""

from __future__ import annotations

from typing import cast

from plugwise.constants import (
    ANNA,
    NONE,
    SPECIAL_PLUG_TYPES,
    SWITCH_GROUP_TYPES,
    ApplianceType,
    GwEntityData,
    ModuleData,
)
from plugwise.util import (
    check_heater_central,
    check_model,
    get_vendor_name,
    return_valid,
)

from defusedxml import ElementTree as etree
from munch import Munch


def get_zigbee_data(
    module: etree.Element, module_data: ModuleData, legacy: bool
) -> None:
    """Helper-function for _get_module_data()."""
    if legacy:
        # Stretches
        if (router := module.find("./protocols/network_router")) is not None:
            module_data["zigbee_mac_address"] = router.find("mac_address").text
        # Also look for the Circle+/Stealth M+
        if (coord := module.find("./protocols/network_coordinator")) is not None:
            module_data["zigbee_mac_address"] = coord.find("mac_address").text
    # Adam
    elif (zb_node := module.find("./protocols/zig_bee_node")) is not None:
        module_data["zigbee_mac_address"] = zb_node.find("mac_address").text
        module_data["reachable"] = zb_node.find("reachable").text == "true"


class SmileCommon:
    """The SmileCommon class."""

    def __init__(self) -> None:
        """Init."""
        self._cooling_present: bool
        self._count: int
        self._domain_objects: etree.Element
        self._heater_id: str = NONE
        self._on_off_device: bool
        self.gw_entities: dict[str, GwEntityData] = {}
        self.smile_name: str
        self.smile_type: str

    @property
    def heater_id(self) -> str:
        """Return the heater-id."""
        return self._heater_id

    def smile(self, name: str) -> bool:
        """Helper-function checking the smile-name."""
        return self.smile_name == name

    def _appl_heater_central_info(
        self,
        appl: Munch,
        xml_1: etree.Element,
        legacy: bool,
        xml_2: etree.Element = None,
        xml_3: etree.Element = None,
    ) -> Munch:
        """Helper-function for _appliance_info_finder()."""
        # Find the valid heater_central
        # xml_2 self._appliances for legacy, self._domain_objects for actual
        xml_2 = return_valid(xml_2, self._domain_objects)
        self._heater_id = check_heater_central(xml_2)

        if self._heater_id == NONE:
            return Munch()  # pragma: no cover

        #  Info for On-Off device
        if self._on_off_device:
            appl.name = "OnOff"  # pragma: no cover
            appl.model = "Unknown"  # pragma: no cover
            appl.vendor_name = None  # pragma: no cover
            return appl  # pragma: no cover

        # Info for OpenTherm device
        appl.name = "OpenTherm"
        locator_1 = "./logs/point_log[type='flame_state']/boiler_state"
        locator_2 = "./services/boiler_state"
        # xml_1: appliance
        # xml_3: self._modules for legacy, self._domain_objects for actual
        xml_3 = return_valid(xml_3, self._domain_objects)
        module_data = self._get_module_data(xml_1, locator_1, xml_3)
        if not module_data["contents"]:
            module_data = self._get_module_data(xml_1, locator_2, xml_3)
        appl.vendor_name = module_data["vendor_name"]
        appl.hardware = module_data["hardware_version"]
        appl.model_id = module_data["vendor_model"] if not legacy else None
        appl.model = (
            "Generic heater/cooler" if self._cooling_present else "Generic heater"
        )

        return appl

    def _appl_thermostat_info(
        self, appl: Munch, xml_1: etree.Element, xml_2: etree.Element = None
    ) -> Munch:
        """Helper-function for _appliance_info_finder()."""
        locator = "./logs/point_log[type='thermostat']/thermostat"
        xml_2 = return_valid(xml_2, self._domain_objects)
        module_data = self._get_module_data(xml_1, locator, xml_2)
        appl.vendor_name = module_data["vendor_name"]
        appl.model = module_data["vendor_model"]
        if (
            appl.model != "ThermoTouch"
        ):  # model_id for Anna not present as stand-alone device
            appl.model_id = appl.model
            appl.model = check_model(appl.model, appl.vendor_name)

        appl.available = module_data["reachable"]
        appl.hardware = module_data["hardware_version"]
        appl.firmware = module_data["firmware_version"]
        appl.zigbee_mac = module_data["zigbee_mac_address"]

        return appl

    def _create_gw_entities(self, appl: Munch) -> None:
        """Helper-function for creating/updating gw_entities."""
        self.gw_entities[appl.entity_id] = {"dev_class": appl.pwclass}
        self._count += 1
        for key, value in {
            "available": appl.available,
            "firmware": appl.firmware,
            "hardware": appl.hardware,
            "location": appl.location,
            "mac_address": appl.mac,
            "model": appl.model,
            "model_id": appl.model_id,
            "name": appl.name,
            "zigbee_mac_address": appl.zigbee_mac,
            "vendor": appl.vendor_name,
        }.items():
            if value is not None or key == "location":
                appl_key = cast(ApplianceType, key)
                self.gw_entities[appl.entity_id][appl_key] = value
                self._count += 1

    def _entity_switching_group(self, entity: GwEntityData, data: GwEntityData) -> None:
        """Helper-function for _get_device_zone_data().

        Determine switching group device data.
        """
        if entity["dev_class"] in SWITCH_GROUP_TYPES:
            counter = 0
            for member in entity["members"]:
                if self.gw_entities[member]["switches"].get("relay"):
                    counter += 1
            data["switches"]["relay"] = counter != 0
            self._count += 1

    def _get_group_switches(self) -> dict[str, GwEntityData]:
        """Helper-function for smile.py: get_all_gateway_entities().

        Collect switching- or pump-group info.
        """
        switch_groups: dict[str, GwEntityData] = {}
        # P1 and Anna don't have switchgroups
        if self.smile_type == "power" or self.smile(ANNA):
            return switch_groups

        for group in self._domain_objects.findall("./group"):
            members: list[str] = []
            group_id = group.attrib["id"]
            group_name = group.find("name").text
            group_type = group.find("type").text
            group_appliances = group.findall("appliances/appliance")
            for item in group_appliances:
                # Check if members are not orphaned - stretch
                if item.attrib["id"] in self.gw_entities:
                    members.append(item.attrib["id"])

            if group_type in SWITCH_GROUP_TYPES and members:
                switch_groups[group_id] = {
                    "dev_class": group_type,
                    "model": "Switchgroup",
                    "name": group_name,
                    "members": members,
                    "vendor": "Plugwise",
                }
                self._count += 4

        return switch_groups

    def _get_lock_state(
        self, xml: etree.Element, data: GwEntityData, stretch_v2: bool = False
    ) -> None:
        """Helper-function for _get_measurement_data().

        Adam & Stretches: obtain the relay-switch lock state.
        """
        actuator = "actuator_functionalities"
        func_type = "relay_functionality"
        if stretch_v2:
            actuator = "actuators"
            func_type = "relay"
        if xml.find("type").text not in SPECIAL_PLUG_TYPES:
            locator = f"./{actuator}/{func_type}/lock"
            if (found := xml.find(locator)) is not None:
                data["switches"]["lock"] = found.text == "true"
                self._count += 1

    def _get_module_data(
        self,
        xml_1: etree.Element,
        locator: str,
        xml_2: etree.Element = None,
        legacy: bool = False,
    ) -> ModuleData:
        """Helper-function for _energy_device_info_finder() and _appliance_info_finder().

        Collect requested info from MODULES.
        """
        module_data: ModuleData = {
            "contents": False,
            "firmware_version": None,
            "hardware_version": None,
            "reachable": None,
            "vendor_name": None,
            "vendor_model": None,
            "zigbee_mac_address": None,
        }

        if (appl_search := xml_1.find(locator)) is not None:
            link_tag = appl_search.tag
            link_id = appl_search.attrib["id"]
            loc = f".//services/{link_tag}[@id='{link_id}']...."
            # Not possible to walrus for some reason...
            # xml_2: self._modules for legacy, self._domain_objects for actual
            search = return_valid(xml_2, self._domain_objects)
            module = search.find(loc)
            if module is not None:  # pylint: disable=consider-using-assignment-expr
                module_data["contents"] = True
                get_vendor_name(module, module_data)
                module_data["vendor_model"] = module.find("vendor_model").text
                module_data["hardware_version"] = module.find("hardware_version").text
                module_data["firmware_version"] = module.find("firmware_version").text
                get_zigbee_data(module, module_data, legacy)

        return module_data