import json
from pathlib import Path

from config import settings


STORE_PATH = Path(__file__).resolve().parent.parent / "nodes.json"


def load_nodes() -> None:
    if not STORE_PATH.exists():
        return
    try:
        nodes = json.loads(STORE_PATH.read_text(encoding="utf-8"))
    except (OSError, json.JSONDecodeError):
        return
    if isinstance(nodes, list):
        settings.edge_nodes = nodes


def save_nodes() -> None:
    temporary = STORE_PATH.with_suffix(".json.tmp")
    temporary.write_text(
        json.dumps(settings.edge_nodes, ensure_ascii=False, indent=2),
        encoding="utf-8",
    )
    temporary.replace(STORE_PATH)