Track created instances, show only ours in UI, v1.0.36

site/operations/tracker.py

@@ -0,0 +1,43 @@
+"""Трекер созданных инстансов — только те что породило приложение."""
+import json
+import os
+import threading
+
+_LOCK = threading.Lock()
+_PATH = os.path.join(os.path.dirname(__file__), "..", "instances.json")
+
+
+def _load():
+    try:
+        with open(_PATH) as f:
+            return json.load(f)
+    except (FileNotFoundError, json.JSONDecodeError):
+        return {}
+
+
+def _save(data):
+    with open(_PATH, "w") as f:
+        json.dump(data, f, indent=2)
+
+
+def add(instance_uid, svc_id, display_name):
+    with _LOCK:
+        data = _load()
+        data[instance_uid] = {
+            "svcId": svc_id,
+            "displayName": display_name,
+            "instanceUid": instance_uid,
+        }
+        _save(data)
+
+
+def remove(instance_uid):
+    with _LOCK:
+        data = _load()
+        data.pop(instance_uid, None)
+        _save(data)
+
+
+def list_all():
+    with _LOCK:
+        return list(_load().values())