Add sensor platform to Bring integration (#126642)

* Add sensor platform to Bring integration

* Add more tests

* unignore typedef check

* Update language sensor

* update snapshot

* changes

* add entities

Co-authored-by: Joost Lekkerkerker <joostlek@outlook.com>

* add units

* lowercase

* snapshot

---------

Co-authored-by: Joost Lekkerkerker <joostlek@outlook.com>

homeassistant/components/bring/util.py

@@ -0,0 +1,40 @@
+"""Utility functions for Bring."""
+
+from __future__ import annotations
+
+from bring_api import BringUserSettingsResponse
+
+from .coordinator import BringData
+
+
+def list_language(
+    list_uuid: str,
+    user_settings: BringUserSettingsResponse,
+) -> str | None:
+    """Get the lists language setting."""
+    try:
+        list_settings = next(
+            filter(
+                lambda x: x["listUuid"] == list_uuid,
+                user_settings["userlistsettings"],
+            )
+        )
+
+        return next(
+            filter(
+                lambda x: x["key"] == "listArticleLanguage",
+                list_settings["usersettings"],
+            )
+        )["value"]
+
+    except (StopIteration, KeyError):
+        return None
+
+
+def sum_attributes(bring_list: BringData, attribute: str) -> int:
+    """Count items with given attribute set."""
+    return sum(
+        item["attributes"][0]["content"][attribute]
+        for item in bring_list["purchase"]
+        if len(item.get("attributes", []))
+    )