from typing import Any

import httpx

from app.config import get_settings


class NetdataClient:
    def __init__(self) -> None:
        settings = get_settings()
        self.base_url = settings.netdata_base_url.rstrip("/")
        self.enabled = settings.netdata_alerts_enabled

    def fetch_alarms(self) -> dict[str, Any]:
        if not self.enabled:
            return {"ok": False, "error": "Netdata alerts disabled", "alarms": []}

        try:
            with httpx.Client(timeout=15.0) as client:
                response = client.get(f"{self.base_url}/api/v1/alarms", params={"all": "true"})
                response.raise_for_status()
                data = response.json()
        except Exception as exc:
            return {"ok": False, "error": str(exc), "alarms": []}

        alarms_raw = data.get("alarms") or {}
        alarms: list[dict[str, Any]] = []
        if isinstance(alarms_raw, dict):
            for name, info in alarms_raw.items():
                if not isinstance(info, dict):
                    continue
                status = (info.get("status") or "").lower()
                if status in ("clear", "undefined", "uninitialized", ""):
                    continue
                alarms.append({
                    "name": name,
                    "status": status,
                    "value_string": info.get("value_string") or info.get("value") or "",
                    "chart": info.get("chart") or "",
                    "host": info.get("hostname") or info.get("host") or "localhost",
                    "info": info.get("info") or "",
                })

        return {"ok": True, "alarms": alarms}

    def fetch_info(self) -> dict[str, Any]:
        try:
            with httpx.Client(timeout=10.0) as client:
                response = client.get(f"{self.base_url}/api/v1/info")
                response.raise_for_status()
                return {"ok": True, "info": response.json()}
        except Exception as exc:
            return {"ok": False, "error": str(exc)}