"""The Z-Wave-Me WS controller."""

from zwave_me_ws import ZWaveMe, ZWaveMeData

from homeassistant.config_entries import ConfigEntry
from homeassistant.const import CONF_TOKEN, CONF_URL
from homeassistant.core import HomeAssistant
from homeassistant.helpers import device_registry as dr
from homeassistant.helpers.dispatcher import dispatcher_send

from .const import DOMAIN, ZWaveMePlatform

type ZWaveMeConfigEntry = ConfigEntry[ZWaveMeController]

ZWAVE_ME_PLATFORMS = [platform.value for platform in ZWaveMePlatform]


class ZWaveMeController:
    """Main ZWave-Me API class."""

    def __init__(self, hass: HomeAssistant, config: ZWaveMeConfigEntry) -> None:
        """Create the API instance."""
        self.device_ids: set[str] = set()
        self._hass = hass
        self.config = config
        self.zwave_api = ZWaveMe(
            on_device_create=self.on_device_create,
            on_device_update=self.on_device_update,
            on_device_remove=self.on_device_unavailable,
            on_device_destroy=self.on_device_destroy,
            on_new_device=self.add_device,
            token=self.config.data[CONF_TOKEN],
            url=self.config.data[CONF_URL],
            platforms=ZWAVE_ME_PLATFORMS,
        )
        self.platforms_inited = False

    async def async_establish_connection(self) -> bool:
        """Get connection status."""
        return await self.zwave_api.get_connection()

    def add_device(self, device: ZWaveMeData) -> None:
        """Send signal to create device."""
        if device.id in self.device_ids:
            dispatcher_send(self._hass, f"ZWAVE_ME_INFO_{device.id}", device)
        else:
            dispatcher_send(
                self._hass, f"ZWAVE_ME_NEW_{device.deviceType.upper()}", device
            )
            self.device_ids.add(device.id)

    def on_device_create(self, devices: list[ZWaveMeData]) -> None:
        """Create multiple devices."""
        for device in devices:
            if device.deviceType in ZWAVE_ME_PLATFORMS and self.platforms_inited:
                self.add_device(device)

    def on_device_update(self, new_info: ZWaveMeData) -> None:
        """Send signal to update device."""
        dispatcher_send(self._hass, f"ZWAVE_ME_INFO_{new_info.id}", new_info)

    def on_device_unavailable(self, device_id: str) -> None:
        """Send signal to set device unavailable."""
        dispatcher_send(self._hass, f"ZWAVE_ME_UNAVAILABLE_{device_id}")

    def on_device_destroy(self, device_id: str) -> None:
        """Send signal to destroy device."""
        dispatcher_send(self._hass, f"ZWAVE_ME_DESTROY_{device_id}")

    def remove_stale_devices(self, registry: dr.DeviceRegistry):
        """Remove old-format devices in the registry."""
        for device_id in self.device_ids:
            device = registry.async_get_device(
                identifiers={(DOMAIN, f"{self.config.unique_id}-{device_id}")}
            )
            if device is not None:
                registry.async_remove_device(device.id)