import logging

from homeassistant.helpers.device_registry import CONNECTION_NETWORK_MAC
from homeassistant.helpers.entity import DeviceInfo, Entity, EntityCategory

from .const import DOMAIN
from .ewelink import XDevice, XRegistry

_LOGGER = logging.getLogger(__name__)

ENTITY_CATEGORIES = {
    "battery": EntityCategory.DIAGNOSTIC,
    "battery_voltage": EntityCategory.DIAGNOSTIC,
    "led": EntityCategory.CONFIG,
    "rssi": EntityCategory.DIAGNOSTIC,
    "pulse": EntityCategory.CONFIG,
    "pulseWidth": EntityCategory.CONFIG,
}

ICONS = {
    "dusty": "mdi:cloud",
    "led": "mdi:led-off",
    "noise": "mdi:bell-ring",
}

NAMES = {
    "led": "LED",
    "rssi": "RSSI",
    "pulse": "INCHING",
    "pulseWidth": "INCHING Duration",
}


class XEntity(Entity):
    params: set = {}
    param: str = None
    uid: str = None

    # fix Hass v2021.12 empty attribute bug
    _attr_is_on = None
    _attr_should_poll = False

    def __init__(self, ewelink: XRegistry, device: XDevice) -> None:
        self.ewelink = ewelink
        self.device = device

        if self.param and self.uid is None:
            self.uid = self.param
        if self.param and not self.params:
            self.params = {self.param}

        if self.uid:
            self._attr_unique_id = f"{device['deviceid']}_{self.uid}"

            if not self.uid.isdigit():
                self._attr_entity_category = ENTITY_CATEGORIES.get(self.uid)
                self._attr_icon = ICONS.get(self.uid)

                s = NAMES.get(self.uid) or self.uid.title().replace("_", " ")
                self._attr_name = f"{device['name']} {s}"
            else:
                self._attr_name = device["name"]

        else:
            self._attr_name = device["name"]
            self._attr_unique_id = device["deviceid"]

        # domain will be replaced in entity_registry.async_generate_entity_id
        self.entity_id = f"{DOMAIN}.{DOMAIN}_{self._attr_unique_id}"

        deviceid: str = device["deviceid"]
        params: dict = device["params"]

        connections = (
            {(CONNECTION_NETWORK_MAC, params["staMac"])} if "staMac" in params else None
        )

        self._attr_device_info = DeviceInfo(
            connections=connections,
            identifiers={(DOMAIN, deviceid)},
            manufacturer=device.get("brandName"),
            model=device.get("productModel"),
            name=device["name"],
            sw_version=params.get("fwVersion"),
        )

        try:
            self.internal_update(params)
        except Exception as e:
            _LOGGER.error(f"Can't init device: {device}", exc_info=e)

        ewelink.dispatcher_connect(deviceid, self.internal_update)

        if parent := device.get("parent"):
            ewelink.dispatcher_connect(parent["deviceid"], self.internal_parent_update)

    def set_state(self, params: dict):
        pass

    def internal_available(self) -> bool:
        device = self.device.get("parent") or self.device
        return (self.ewelink.cloud.online and device.get("online")) or (
            self.ewelink.local.online and device.get("local")
        )

    def internal_update(self, params: dict = None):
        available = self.internal_available()
        change = False

        if self._attr_available != available:
            self._attr_available = available
            change = True

        if params and params.keys() & self.params:
            self.set_state(params)
            change = True

        if change and self.hass:
            self._async_write_ha_state()

    def internal_parent_update(self, params: dict = None):
        self.internal_update(None)

    async def async_update(self):
        if led := self.device["params"].get("sledOnline"):
            # device response with current status if we change any param
            await self.ewelink.send(
                self.device, params_lan={"sledOnline": led}, cmd_lan="sledonline"
            )
        else:
            await self.ewelink.send(self.device)