"""Lokal lagring: JSON-filer (bruger-præferencer, cookie-tekster) + IP-label-sync til NPMplus."""
import json
import subprocess

from config import DATA, IP_LABELS_LOCAL, IP_LABELS_REMOTE, SETTINGS_PATH, USERPREFS  # noqa: F401


def load_json(path, default):
    try:
        return json.loads(path.read_text("utf-8"))
    except Exception:
        return default


def save_ip_labels(data: dict) -> str:
    IP_LABELS_LOCAL.write_text(json.dumps(data, ensure_ascii=False, indent=2), "utf-8")
    if IP_LABELS_REMOTE:
        try:
            subprocess.run(
                ["scp", "-o", "StrictHostKeyChecking=accept-new", "-o", "ConnectTimeout=8",
                 str(IP_LABELS_LOCAL), IP_LABELS_REMOTE],
                check=True, capture_output=True, timeout=20)
            return "gemt + synkroniseret til NPMplus"
        except Exception as e:
            return f"gemt lokalt, men sync til NPMplus fejlede: {e}"
    return "gemt lokalt"


def get_prefs(username):
    p = (load_json(USERPREFS, {}) or {}).get(username) or {}
    return {"favorites": p.get("favorites") or [], "view": p.get("view") or "grouped"}


def set_prefs(username, **kw):
    allp = load_json(USERPREFS, {}) or {}
    cur = allp.get(username) or {}
    cur.update(kw)
    allp[username] = cur
    USERPREFS.write_text(json.dumps(allp, ensure_ascii=False, indent=2), "utf-8")