"""Support for setting the Deluge BitTorrent client in Pause."""
from __future__ import annotations

from typing import Any

from homeassistant.components.switch import SwitchEntity
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import Platform
from homeassistant.core import HomeAssistant
from homeassistant.helpers import entity_platform

from . import DelugeEntity
from .const import DOMAIN
from .coordinator import DelugeDataUpdateCoordinator


async def async_setup_entry(
    hass: HomeAssistant,
    entry: ConfigEntry,
    async_add_entities: entity_platform.AddEntitiesCallback,
) -> None:
    """Set up the Deluge switch."""
    async_add_entities([DelugeSwitch(hass.data[DOMAIN][entry.entry_id])])


class DelugeSwitch(DelugeEntity, SwitchEntity):
    """Representation of a Deluge switch."""

    def __init__(self, coordinator: DelugeDataUpdateCoordinator) -> None:
        """Initialize the Deluge switch."""
        super().__init__(coordinator)
        self._attr_unique_id = f"{coordinator.config_entry.entry_id}_enabled"

    def turn_on(self, **kwargs: Any) -> None:
        """Turn the device on."""
        torrent_ids = self.coordinator.api.call("core.get_session_state")
        self.coordinator.api.call("core.resume_torrent", torrent_ids)

    def turn_off(self, **kwargs: Any) -> None:
        """Turn the device off."""
        torrent_ids = self.coordinator.api.call("core.get_session_state")
        self.coordinator.api.call("core.pause_torrent", torrent_ids)

    @property
    def is_on(self) -> bool:
        """Return state of the switch."""
        if self.coordinator.data:
            data = self.coordinator.data[Platform.SWITCH]
            for torrent in data.values():
                item = torrent.popitem()
                if not item[1]:
                    return True
        return False
