"""Ohme coordinators."""

from __future__ import annotations

from abc import abstractmethod
from dataclasses import dataclass
from datetime import timedelta
import logging

from ohme import ApiException, OhmeApiClient

from homeassistant.config_entries import ConfigEntry
from homeassistant.core import HomeAssistant
from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed

from .const import DOMAIN

_LOGGER = logging.getLogger(__name__)


@dataclass()
class OhmeRuntimeData:
    """Dataclass to hold ohme coordinators."""

    charge_session_coordinator: OhmeChargeSessionCoordinator
    advanced_settings_coordinator: OhmeAdvancedSettingsCoordinator
    device_info_coordinator: OhmeDeviceInfoCoordinator


type OhmeConfigEntry = ConfigEntry[OhmeRuntimeData]


class OhmeBaseCoordinator(DataUpdateCoordinator[None]):
    """Base for all Ohme coordinators."""

    config_entry: OhmeConfigEntry
    client: OhmeApiClient
    _default_update_interval: timedelta | None = timedelta(minutes=1)
    coordinator_name: str = ""

    def __init__(
        self, hass: HomeAssistant, config_entry: OhmeConfigEntry, client: OhmeApiClient
    ) -> None:
        """Initialise coordinator."""
        super().__init__(
            hass,
            _LOGGER,
            config_entry=config_entry,
            name="",
            update_interval=self._default_update_interval,
        )

        self.name = f"Ohme {self.coordinator_name}"
        self.client = client

    async def _async_update_data(self) -> None:
        """Fetch data from API endpoint."""
        try:
            await self._internal_update_data()
        except ApiException as e:
            raise UpdateFailed(
                translation_key="api_failed", translation_domain=DOMAIN
            ) from e

    @abstractmethod
    async def _internal_update_data(self) -> None:
        """Update coordinator data."""


class OhmeChargeSessionCoordinator(OhmeBaseCoordinator):
    """Coordinator to pull all updates from the API."""

    coordinator_name = "Charge Sessions"
    _default_update_interval = timedelta(seconds=30)

    async def _internal_update_data(self) -> None:
        """Fetch data from API endpoint."""
        await self.client.async_get_charge_session()


class OhmeAdvancedSettingsCoordinator(OhmeBaseCoordinator):
    """Coordinator to pull settings and charger state from the API."""

    coordinator_name = "Advanced Settings"

    async def _internal_update_data(self) -> None:
        """Fetch data from API endpoint."""
        await self.client.async_get_advanced_settings()


class OhmeDeviceInfoCoordinator(OhmeBaseCoordinator):
    """Coordinator to pull device info and charger settings from the API."""

    coordinator_name = "Device Info"
    _default_update_interval = timedelta(minutes=30)

    async def _internal_update_data(self) -> None:
        """Fetch data from API endpoint."""
        await self.client.async_update_device_info()