#!/usr/bin/env python3
"""server-monitor – Erweitertes Server-Monitoring mit Telegram-Alerts."""

from __future__ import annotations

import logging
import sys
from pathlib import Path

from config import load_config
from notify import Alerter
from state import State
from checks.zfs import ZFSCheck
from checks.smart import SmartCheck
from checks.nut import NutCheck

CONFIG_FILE = "/etc/server-monitor.toml"


def setup_logging(log_file: str) -> None:
    Path(log_file).parent.mkdir(parents=True, exist_ok=True)
    logging.basicConfig(
        level=logging.INFO,
        format="[%(asctime)s] %(message)s",
        datefmt="%Y-%m-%d %H:%M:%S",
        handlers=[
            logging.FileHandler(log_file),
            logging.StreamHandler(sys.stdout),
        ],
    )


def main() -> None:
    try:
        config = load_config(CONFIG_FILE)
    except (FileNotFoundError, ValueError) as e:
        print(f"FEHLER: {e}", file=sys.stderr)
        sys.exit(1)

    setup_logging(config.log_file)
    log = logging.getLogger("main")

    state   = State(config.state_file)
    alerter = Alerter(config, state)

    log.info("====== server-monitor Start ======")

    checks = [
        ZFSCheck(config, state, alerter),
        SmartCheck(config, state, alerter),
    ]
    if config.nut.enabled:
        checks.append(NutCheck(config, state, alerter))

    for check in checks:
        try:
            check.run()
        except Exception as e:
            log.error("Check %s fehlgeschlagen: %s", check.__class__.__name__, e)

    log.info("====== server-monitor Ende ======")


if __name__ == "__main__":
    main()