A lot of cleanup, restructuring project directory.

passkey/aaguid/__init__.py

@@ -0,0 +1,32 @@
+"""
+AAGUID (Authenticator Attestation GUID) management for WebAuthn credentials.
+
+This module provides functionality to:
+- Load AAGUID data from JSON file
+- Look up authenticator information by AAGUID
+- Return only relevant AAGUID data for user credentials
+"""
+
+import json
+from collections.abc import Iterable
+from importlib.resources import files
+
+__ALL__ = ["AAGUID", "filter"]
+
+# Path to the AAGUID JSON file
+AAGUID_FILE = files("passkey") / "aaguid" / "combined_aaguid.json"
+AAGUID: dict[str, dict] = json.loads(AAGUID_FILE.read_text(encoding="utf-8"))
+
+
+def filter(aaguids: Iterable[str]) -> dict[str, dict]:
+    """
+    Get AAGUID information only for the provided set of AAGUIDs.
+
+    Args:
+        aaguids: Set of AAGUID strings that the user has credentials for
+
+    Returns:
+        Dictionary mapping AAGUID to authenticator information for only
+        the AAGUIDs that the user has and that we have data for
+    """
+    return {aaguid: AAGUID[aaguid] for aaguid in aaguids if aaguid in AAGUID}