Get notifications working properly.

src/notifications/subscriptions.rs

@@ -0,0 +1,17 @@
+use crate::database::entities::User;
+
+use super::hive::get_hive;
+use hive_pubsub::PubSub;
+
+pub async fn generate_subscriptions(user: &User) -> Result<(), String> {
+    let hive = get_hive();
+    hive.subscribe(user.id.clone(), user.id.clone())?;
+
+    if let Some(relations) = &user.relations {
+        for relation in relations {
+            hive.subscribe(user.id.clone(), relation.id.clone())?;
+        }
+    }
+
+    Ok(())
+}