Init

barcode_server/util.py

@@ -0,0 +1,38 @@
+from evdev import InputDevice
+
+from barcode_server.barcode import BarcodeEvent
+
+
+def input_device_to_dict(input_device: InputDevice) -> dict:
+    """
+    Converts an input device to a a dictionary with human readable values
+    :param input_device: the device to convert
+    :return: dictionary
+    """
+    return {
+        "name": input_device.name,
+        "path": input_device.path,
+        "vendorId": f"{input_device.info.vendor: 04x}",
+        "productId": f"{input_device.info.product: 04x}",
+    }
+
+
+def barcode_event_to_json(server_id: str, event: BarcodeEvent) -> bytes:
+    """
+    Converts a barcode event to json
+    :param server_id: server instance id
+    :param event: the event to convert
+    :return: json representation
+    """
+    import orjson
+
+    event = {
+        "id": event.id,
+        "serverId": server_id,
+        "date": event.date.isoformat(),
+        "device": input_device_to_dict(event.input_device),
+        "barcode": event.barcode
+    }
+
+    json = orjson.dumps(event)
+    return json