#musicbrainz_helpers.py
import json
from pathlib import Path

CACHE_FILE = Path(__file__).resolve().parent / "cache.json"

def load_cache():
    try:
        if not CACHE_FILE.exists():
            with open(CACHE_FILE, "w") as f:
                json.dump({
                    "added_artists": [],
                    "similar_cache": {},
                    "added_tracks": []
                }, f)
        with open(CACHE_FILE, "r") as f:
            data = json.load(f)
            data.setdefault("added_artists", [])
            data.setdefault("similar_cache", {})
            data.setdefault("added_tracks", [])
            return data
    except Exception:
        return {
            "added_artists": [],
            "similar_cache": {},
            "added_tracks": []
        }

def save_cache(cache):
    with open(CACHE_FILE, "w") as f:
        json.dump(cache, f, indent=2)