71 lines
2.2 KiB
Python
71 lines
2.2 KiB
Python
"""Heartbeat: DB záznam + volitelný HTTP pulz do Loxone."""
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from __future__ import annotations
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import logging
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import os
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import httpx
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from app.config import get_settings
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logger = logging.getLogger(__name__)
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EMS_BACKEND_VERSION = "v1.0.0"
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async def send_heartbeat(
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site_id: int,
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db,
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loxone_host: str | None = None,
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loxone_port: int | None = None,
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) -> None:
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"""
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1. Aktualizuje ems.site_heartbeat v DB
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2. Pokud je Loxone nakonfigurováno, pošle HTTP pulz
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"""
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try:
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endpoint = await db.fetchrow(
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"""
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SELECT host, port, protocol, auth_reference
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FROM ems.site_endpoint
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WHERE site_id = $1 AND endpoint_type = 'loxone_http' AND enabled = true
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ORDER BY id
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LIMIT 1
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""",
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site_id,
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)
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loxone_ok = False
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if endpoint:
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proto = (endpoint["protocol"] or "http").lower()
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if proto not in ("http", "https"):
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proto = "http"
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host = loxone_host if loxone_host is not None else endpoint["host"]
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if loxone_port is not None:
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port = int(loxone_port)
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else:
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port = int(endpoint["port"] or (443 if proto == "https" else 80))
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url = f"{proto}://{host}:{port}/dev/sps/io/EMS_Heartbeat/1"
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settings = get_settings()
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user = settings.loxone_user or os.getenv("LOXONE_USER") or ""
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password = settings.loxone_password or os.getenv("LOXONE_PASSWORD") or ""
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auth = (user, password) if user else None
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try:
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async with httpx.AsyncClient(timeout=5.0) as client:
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await client.get(url, auth=auth)
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loxone_ok = True
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except Exception as e:
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logger.warning("Heartbeat Loxone failed (site=%s): %s", site_id, e)
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status = "ok" if (not endpoint or loxone_ok) else "degraded"
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await db.execute(
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"select ems.fn_update_heartbeat($1, $2, $3)",
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site_id,
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status,
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EMS_BACKEND_VERSION,
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)
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except Exception as e:
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logger.error("Heartbeat service error (site=%s): %s", site_id, e)
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