fix path errors

examples/gui/viewer3d/preferences.py

@@ -13,6 +13,17 @@ LEGACY_CAMERA_SELECTION_FILE = "camera_selection.json"
 # Keep preference.json at examples/gui/ for backward compatibility.
 _GUI_DIR = Path(__file__).resolve().parents[1]
 
+# Old lab / repo-relative paths that predate packaged sensors/<name>/.
+_LEGACY_CONFIG_PATHS = {
+    "dd02",
+    "dd02-ov",
+    "config/dd02-ov.json",
+    "./config/dd02-ov.json",
+    "config/finger.json",
+    "./config/finger.json",
+    "sensors/finger/sensor.json",
+}
+
 
 def preference_path() -> Path:
     # Keep preference file at examples/gui/preference.json
@@ -23,6 +34,92 @@ def legacy_camera_selection_path() -> Path:
     return resource_path(LEGACY_CAMERA_SELECTION_FILE)
 
 
+def default_finger_config() -> str:
+    """Public product config stem resolved via packaged ``sensors/finger``."""
+    return "finger"
+
+
+def default_finger_assets_dir() -> str:
+    try:
+        from orisys.finger import DEFAULT_FINGER_EXPORT_DIR
+
+        return DEFAULT_FINGER_EXPORT_DIR
+    except ImportError:
+        return "sensors/finger/assets/30fps-0703"
+
+
+def packaged_finger_bundle_root() -> Path | None:
+    """Filesystem root of the installed ``sensors/finger`` bundle when present."""
+    try:
+        from orisys.configs import resolve_sensor_bundle
+    except ImportError:
+        return None
+    bundle = resolve_sensor_bundle("finger")
+    return bundle.root if bundle is not None else None
+
+
+def packaged_finger_assets_root() -> Path | None:
+    try:
+        from orisys.configs import resolve_sensor_asset_dir
+    except ImportError:
+        return None
+    return resolve_sensor_asset_dir("finger")
+
+
+def normalize_config_preference(value: str | None) -> str:
+    """Map legacy config paths to the packaged ``finger`` sensor name."""
+    if value is None or not str(value).strip():
+        return default_finger_config()
+    text = str(value).strip().replace("\\", "/")
+    if text in _LEGACY_CONFIG_PATHS or text.endswith("/dd02-ov.json"):
+        return default_finger_config()
+
+    root = packaged_finger_bundle_root()
+    if root is not None:
+        try:
+            if Path(value).resolve() == (root / "sensor.json").resolve():
+                return default_finger_config()
+        except OSError:
+            pass
+    return text
+
+
+def normalize_assets_preference(value: str | None) -> str:
+    """Prefer packaged ``sensors/finger/assets/...`` when saved paths are stale."""
+    default = default_finger_assets_dir()
+    if value is None or not str(value).strip():
+        return default
+    text = str(value).strip()
+    posix = text.replace("\\", "/")
+    if posix == default or posix.endswith("/sensors/finger/assets/30fps-0703"):
+        return default
+
+    path = Path(text)
+    if path.is_dir():
+        packaged = packaged_finger_assets_root()
+        if packaged is not None:
+            try:
+                if path.resolve() == packaged.resolve():
+                    return default
+            except OSError:
+                pass
+        if "sensors/finger" in posix or path.name == "30fps-0703":
+            return text if path.is_absolute() else default
+        return text
+
+    return default
+
+
+def _normalize_preferences(prefs: dict[str, Any]) -> dict[str, Any]:
+    prefs = dict(prefs)
+    if "config_path" in prefs or prefs:
+        prefs["config_path"] = normalize_config_preference(prefs.get("config_path"))
+    if "finger_assets_dir" in prefs or prefs:
+        prefs["finger_assets_dir"] = normalize_assets_preference(prefs.get("finger_assets_dir"))
+    prefs.setdefault("sensor_bundle_dir", "sensors/finger")
+    return prefs
+
+
 def _read_json(path: Path) -> dict[str, Any]:
     if not path.is_file():
         return {}
@@ -34,14 +131,14 @@ def _read_json(path: Path) -> dict[str, Any]:
 
 
 def load_preferences() -> dict[str, Any]:
-    """Load preferences, migrating camera_id from legacy file when needed."""
+    """Load preferences, migrating camera_id / legacy config paths when needed."""
     prefs = _read_json(preference_path())
     if "video_source" not in prefs:
         legacy = _read_json(legacy_camera_selection_path())
         camera_id = legacy.get("camera_id")
         if camera_id is not None and str(camera_id).strip():
             prefs["video_source"] = str(camera_id).strip()
-    return prefs
+    return _normalize_preferences(prefs)
 
 
 def save_preferences(prefs: dict[str, Any]) -> None:
@@ -49,9 +146,10 @@ def save_preferences(prefs: dict[str, Any]) -> None:
     if not isinstance(prefs, dict):
         return
     path = preference_path()
+    normalized = _normalize_preferences(prefs)
     try:
         path.parent.mkdir(parents=True, exist_ok=True)
-        path.write_text(json.dumps(prefs, indent=2) + "\n", encoding="utf-8")
+        path.write_text(json.dumps(normalized, indent=2) + "\n", encoding="utf-8")
     except OSError:
         pass