"""Unraid servers status router — MQTT-only data source."""

from __future__ import annotations

import logging
from typing import Any, Dict, List

from fastapi import APIRouter

from server.config import get_settings
from server.services.mqtt_service import mqtt_service
from server.services.unraid_service import ServerConfig, fetch_all_servers_mqtt

logger = logging.getLogger(__name__)

router = APIRouter(prefix="/api", tags=["servers"])


@router.get("/servers")
async def get_servers() -> Dict[str, Any]:
    """Return status information for all configured Unraid servers.

    All data comes from the MQTT message store — no HTTP polling,
    no API keys, no cache needed (MQTT data is always fresh).
    """

    settings = get_settings()

    server_configs: List[ServerConfig] = [
        ServerConfig(
            name=srv.name,
            host=srv.host,
            mqtt_prefix=getattr(srv, "mqtt_prefix", "") or srv.name,
        )
        for srv in settings.unraid_servers
    ]

    if not server_configs:
        return {"servers": []}

    try:
        servers_data = fetch_all_servers_mqtt(server_configs, mqtt_service.store)
    except Exception as exc:
        logger.exception("Failed to read Unraid server data from MQTT")
        return {
            "servers": [],
            "error": True,
            "message": str(exc),
        }

    return {"servers": servers_data}