added attach with background task

pkgs/clan-cli/clan_cli/webui/sql_crud.py

@@ -1,3 +1,4 @@
+import time
 from typing import List, Optional
 
 from sqlalchemy.orm import Session
@@ -136,3 +137,21 @@ def get_entities(
 
 def get_entity_by_did(db: Session, did: str) -> Optional[sql_models.Entity]:
     return db.query(sql_models.Entity).filter(sql_models.Entity.did == did).first()
+
+
+def check_health(db: Session, entity_did: str, message: str) -> str:
+    # ste attached to true
+    db_entity = get_entity_by_did(db, entity_did)
+    if db_entity is not None:
+        # db_entity.attached = Column(True)
+        setattr(db_entity, "attached", True)
+        # save changes in db
+        db.add(db_entity)
+        db.commit()
+        db.refresh(db_entity)
+        # check every 5 secounds if status has changed
+        while db_entity.attached:
+            time.sleep(5)
+        return f"{entity_did} message"
+    else:
+        return f"{entity_did} not found and not attached"