"""The WLED Screen Controller integration."""
from __future__ import annotations

import logging
from datetime import timedelta
from urllib.parse import urlparse

from homeassistant.config_entries import ConfigEntry
from homeassistant.const import Platform, CONF_NAME
from homeassistant.core import HomeAssistant
from homeassistant.helpers import device_registry as dr
from homeassistant.helpers.aiohttp_client import async_get_clientsession

from .const import DOMAIN, CONF_SERVER_URL, DEFAULT_SCAN_INTERVAL
from .coordinator import WLEDScreenControllerCoordinator

_LOGGER = logging.getLogger(__name__)

PLATFORMS: list[Platform] = [
    Platform.SWITCH,
    Platform.SENSOR,
    Platform.SELECT,
]


async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
    """Set up WLED Screen Controller from a config entry."""
    server_url = entry.data[CONF_SERVER_URL]
    server_name = entry.data.get(CONF_NAME, "WLED Screen Controller")

    session = async_get_clientsession(hass)
    coordinator = WLEDScreenControllerCoordinator(
        hass,
        session,
        server_url,
        update_interval=timedelta(seconds=DEFAULT_SCAN_INTERVAL),
    )

    # Fetch initial data
    await coordinator.async_config_entry_first_refresh()

    # Create hub device (the server PC)
    device_registry = dr.async_get(hass)

    # Parse URL for hub identifier
    parsed_url = urlparse(server_url)
    hub_identifier = f"{parsed_url.hostname}:{parsed_url.port or (443 if parsed_url.scheme == 'https' else 80)}"

    hub_device = device_registry.async_get_or_create(
        config_entry_id=entry.entry_id,
        identifiers={(DOMAIN, hub_identifier)},
        name=server_name,
        manufacturer="WLED Screen Controller",
        model="Server",
        sw_version=coordinator.server_version,
        configuration_url=server_url,
    )

    # Create device entries for each WLED device
    if coordinator.data and "devices" in coordinator.data:
        for device_id, device_data in coordinator.data["devices"].items():
            device_info = device_data["info"]
            device_registry.async_get_or_create(
                config_entry_id=entry.entry_id,
                identifiers={(DOMAIN, device_id)},
                name=device_info["name"],
                manufacturer="WLED",
                model="Screen Ambient Lighting",
                sw_version=f"{device_info.get('led_count', 0)} LEDs",
                via_device=(DOMAIN, hub_identifier),  # Link to hub
                configuration_url=device_info.get("url"),
            )

    # Store coordinator and hub info
    hass.data.setdefault(DOMAIN, {})
    hass.data[DOMAIN][entry.entry_id] = {
        "coordinator": coordinator,
        "hub_device_id": hub_device.id,
    }

    # Setup platforms
    await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)

    return True


async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
    """Unload a config entry."""
    unload_ok = await hass.config_entries.async_unload_platforms(entry, PLATFORMS)

    if unload_ok:
        hass.data[DOMAIN].pop(entry.entry_id)

    return unload_ok


async def async_reload_entry(hass: HomeAssistant, entry: ConfigEntry) -> None:
    """Reload config entry."""
    await async_unload_entry(hass, entry)
    await async_setup_entry(hass, entry)