"""Sensor platform for Brottsplatskartan information."""
from __future__ import annotations

from collections import defaultdict
from datetime import timedelta
import uuid

import brottsplatskartan
import voluptuous as vol

from homeassistant.components.sensor import PLATFORM_SCHEMA, SensorEntity
from homeassistant.const import CONF_LATITUDE, CONF_LONGITUDE, CONF_NAME
from homeassistant.core import HomeAssistant
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType

from .const import AREAS, CONF_AREA, DEFAULT_NAME, LOGGER

SCAN_INTERVAL = timedelta(minutes=30)

PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
    {
        vol.Inclusive(CONF_LATITUDE, "coordinates"): cv.latitude,
        vol.Inclusive(CONF_LONGITUDE, "coordinates"): cv.longitude,
        vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
        vol.Optional(CONF_AREA, default=[]): vol.All(cv.ensure_list, [vol.In(AREAS)]),
    }
)


def setup_platform(
    hass: HomeAssistant,
    config: ConfigType,
    add_entities: AddEntitiesCallback,
    discovery_info: DiscoveryInfoType | None = None,
) -> None:
    """Set up the Brottsplatskartan platform."""

    area = config.get(CONF_AREA)
    latitude = config.get(CONF_LATITUDE, hass.config.latitude)
    longitude = config.get(CONF_LONGITUDE, hass.config.longitude)
    name = config[CONF_NAME]

    # Every Home Assistant instance should have their own unique
    # app parameter: https://brottsplatskartan.se/sida/api
    app = f"ha-{uuid.getnode()}"

    bpk = brottsplatskartan.BrottsplatsKartan(
        app=app, area=area, latitude=latitude, longitude=longitude
    )

    add_entities([BrottsplatskartanSensor(bpk, name)], True)


class BrottsplatskartanSensor(SensorEntity):
    """Representation of a Brottsplatskartan Sensor."""

    _attr_attribution = brottsplatskartan.ATTRIBUTION

    def __init__(self, bpk: brottsplatskartan.BrottsplatsKartan, name: str) -> None:
        """Initialize the Brottsplatskartan sensor."""
        self._brottsplatskartan = bpk
        self._attr_name = name

    def update(self) -> None:
        """Update device state."""

        incident_counts: defaultdict[str, int] = defaultdict(int)
        incidents = self._brottsplatskartan.get_incidents()

        if incidents is False:
            LOGGER.debug("Problems fetching incidents")
            return

        for incident in incidents:
            if (incident_type := incident.get("title_type")) is not None:
                incident_counts[incident_type] += 1

        self._attr_extra_state_attributes = incident_counts
        self._attr_native_value = len(incidents)