Create separate SendActivityTask for each destination

lemmy_apub/src/activity_queue.rs

@@ -203,15 +203,15 @@ where
     insert_activity(actor.user_id(), activity.clone(), true, pool).await?;
   }
 
-  // TODO: it would make sense to create a separate task for each destination server
+  for t in to {
     let message = SendActivityTask {
-    activity: serialised_activity,
-    to,
+      activity: serialised_activity.to_owned(),
+      to: t,
       actor_id: actor.actor_id()?,
       private_key: actor.private_key().context(location_info!())?,
     };
-
     activity_sender.queue::<SendActivityTask>(message)?;
+  }
 
   Ok(())
 }
@@ -219,7 +219,7 @@ where
 #[derive(Clone, Debug, Deserialize, Serialize)]
 struct SendActivityTask {
   activity: String,
-  to: Vec<Url>,
+  to: Url,
   actor_id: Url,
   private_key: String,
 }
@@ -234,13 +234,12 @@ impl ActixJob for SendActivityTask {
 
   fn run(self, state: Self::State) -> Self::Future {
     Box::pin(async move {
-      for to_url in &self.to {
       let mut headers = BTreeMap::<String, String>::new();
       headers.insert("Content-Type".into(), "application/json".into());
       let result = sign_and_send(
         &state.client,
         headers,
-          to_url,
+        &self.to,
         self.activity.clone(),
         &self.actor_id,
         self.private_key.to_owned(),
@@ -252,10 +251,9 @@ impl ActixJob for SendActivityTask {
         return Err(anyhow!(
           "Failed to send activity {} to {}",
           &self.activity,
-            to_url
+          self.to
         ));
       }
-      }
       Ok(())
     })
   }