data.py

"""
data.py — Save/load game state to JSON.
"""

import json
import os
from config import DEFAULT_DATA

DATA_FILE = os.path.join(os.path.dirname(os.path.abspath(__file__)), "rpg_save.json")


def load_data() -> dict:
    """Load saved data from disk, merging with defaults for missing keys."""
    if os.path.exists(DATA_FILE):
        try:
            with open(DATA_FILE, "r", encoding="utf-8") as f:
                data = json.load(f)
            # Merge top-level defaults
            for key, val in DEFAULT_DATA.items():
                if key not in data:
                    data[key] = val
            # Merge character-level defaults
            for key, val in DEFAULT_DATA["character"].items():
                if key not in data["character"]:
                    data["character"][key] = val
            return data
        except Exception:
            pass
    return json.loads(json.dumps(DEFAULT_DATA))


def save_data(data: dict) -> None:
    """Persist game state to disk."""
    with open(DATA_FILE, "w", encoding="utf-8") as f:
        json.dump(data, f, indent=2, ensure_ascii=False)