Update models.py

router/models.py

@@ -45,12 +45,33 @@ class Model(BaseModel):
 
 MODELS: list[Model] = []
 
-models_file = "models.json"
-if not os.path.exists(models_file):
-    models_file = "models.example.json"
+def load_models() -> list[Model]:
+     """Load model definitions from a JSON file.
+     The file path can be specified via the ``MODELS_PATH`` environment variable.
+     If ``models.json`` is not found, the bundled ``models.example.json`` is used
+     as a fallback. If neither file exists or an error occurs while loading, an
+     empty list is returned.
+     """
 
-with open(models_file, "r") as f:
-    MODELS = [Model(**model) for model in json.load(f)["models"]]
+     models_path = Path(os.environ.get("MODELS_PATH", "models.json"))
+     if not models_path.exists():
+         example = Path(__file__).resolve().parent.parent / "models.example.json"
+         if example.exists():
+             models_path = example
+         else:
+             return []
+
+     try:
+         with models_path.open("r") as f:
+             data = json.load(f)
+     except Exception as e:  # pragma: no cover - log and continue
+         print(f"Error loading models from {models_path}: {e}")
+         return []
+
+     return [Model(**model) for model in data.get("models", [])]
+
+
+ MODELS = load_models()
 
 
 async def update_sats_pricing() -> None: