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"""
core/app_settings.py
Platform-aware persistence for application settings.
Stored independently of profiles so they survive profile switches and
reflect per-computer preferences (theme, font, paths, etc.).
Locations:
Windows : %APPDATA%/labUI/settings.json
macOS : ~/Library/Application Support/labUI/settings.json
Linux : $XDG_CONFIG_HOME/labUI/settings.json (default ~/.config/labUI/)
"""
import json
import os
import sys
from pathlib import Path
def _settings_path() -> Path:
if sys.platform == "win32":
base = Path(os.environ.get("APPDATA", Path.home()))
elif sys.platform == "darwin":
base = Path.home() / "Library" / "Application Support"
else:
base = Path(os.environ.get("XDG_CONFIG_HOME", Path.home() / ".config"))
return base / "labUI" / "settings.json"
SETTINGS_PATH = _settings_path()
def load_settings(defaults: dict) -> dict:
"""Return defaults merged with any saved settings. Never raises."""
cfg = dict(defaults)
try:
if SETTINGS_PATH.exists():
with open(SETTINGS_PATH) as f:
cfg.update(json.load(f))
except Exception:
pass
return cfg
def save_settings(cfg: dict) -> None:
"""Persist cfg to disk. Never raises."""
try:
SETTINGS_PATH.parent.mkdir(parents=True, exist_ok=True)
with open(SETTINGS_PATH, "w") as f:
json.dump(cfg, f, indent=2)
except Exception:
pass
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