feat: add feature to update cachyOS in the background

lib/state.py

@@ -0,0 +1,43 @@
+import json
+import logging
+import os
+from pathlib import Path
+
+from config import STATE_FILE
+
+logger = logging.getLogger(__name__)
+
+_DEFAULTS = {
+    "status": "idle",
+    "last_check": None,
+    "available_updates": [],
+    "pending_restart": [],
+    "installed_history": [],
+    "errors": [],
+}
+
+
+def load() -> dict:
+    if not STATE_FILE.exists():
+        return dict(_DEFAULTS)
+    try:
+        with open(STATE_FILE) as f:
+            data = json.load(f)
+        for k, v in _DEFAULTS.items():
+            data.setdefault(k, v)
+        return data
+    except Exception as e:
+        logger.error(f"Impossible de charger l'état : {e}")
+        return dict(_DEFAULTS)
+
+
+def save(state: dict) -> None:
+    STATE_FILE.parent.mkdir(parents=True, exist_ok=True)
+    try:
+        tmp = STATE_FILE.with_suffix(".tmp")
+        with open(tmp, "w") as f:
+            json.dump(state, f, indent=2, default=str)
+        tmp.replace(STATE_FILE)
+        os.chmod(STATE_FILE, 0o644)  # Lisible par tous pour l'interface utilisateur
+    except Exception as e:
+        logger.error(f"Impossible de sauvegarder l'état : {e}")