Do not include notifications from blocked users when with_muted is set

This is not what with_muted is for per documentation and it was agreed
on irc that this behavior doesn't make sense.

lib/pleroma/notification.ex

@@ -34,41 +34,49 @@ defmodule Pleroma.Notification do
   end
 
   def for_user_query(user, opts \\ []) do
-    query =
-      Notification
-      |> where(user_id: ^user.id)
-      |> where(
-        [n, a],
+    Notification
+    |> where(user_id: ^user.id)
+    |> where(
+      [n, a],
+      fragment(
+        "? not in (SELECT ap_id FROM users WHERE info->'deactivated' @> 'true')",
+        a.actor
+      )
+    )
+    |> join(:inner, [n], activity in assoc(n, :activity))
+    |> join(:left, [n, a], object in Object,
+      on:
         fragment(
-          "? not in (SELECT ap_id FROM users WHERE info->'deactivated' @> 'true')",
-          a.actor
+          "(?->>'id') = COALESCE((? -> 'object'::text) ->> 'id'::text)",
+          object.data,
+          a.data
         )
-      )
-      |> join(:inner, [n], activity in assoc(n, :activity))
-      |> join(:left, [n, a], object in Object,
-        on:
-          fragment(
-            "(?->>'id') = COALESCE((? -> 'object'::text) ->> 'id'::text)",
-            object.data,
-            a.data
-          )
-      )
-      |> preload([n, a, o], activity: {a, object: o})
+    )
+    |> preload([n, a, o], activity: {a, object: o})
+    |> exclude_muted(user, opts)
+    |> exclude_blocked(user)
+  end
 
-    if opts[:with_muted] do
-      query
-    else
-      where(query, [n, a], a.actor not in ^user.info.muted_notifications)
-      |> where([n, a], a.actor not in ^user.info.blocks)
-      |> where(
-        [n, a],
-        fragment("substring(? from '.*://([^/]*)')", a.actor) not in ^user.info.domain_blocks
-      )
-      |> join(:left, [n, a], tm in Pleroma.ThreadMute,
-        on: tm.user_id == ^user.id and tm.context == fragment("?->>'context'", a.data)
-      )
-      |> where([n, a, o, tm], is_nil(tm.user_id))
-    end
+  defp exclude_blocked(query, user) do
+    query
+    |> where([n, a], a.actor not in ^user.info.blocks)
+    |> where(
+      [n, a],
+      fragment("substring(? from '.*://([^/]*)')", a.actor) not in ^user.info.domain_blocks
+    )
+  end
+
+  defp exclude_muted(query, _, %{with_muted: true}) do
+    query
+  end
+
+  defp exclude_muted(query, user, _opts) do
+    query
+    |> where([n, a], a.actor not in ^user.info.muted_notifications)
+    |> join(:left, [n, a], tm in Pleroma.ThreadMute,
+      on: tm.user_id == ^user.id and tm.context == fragment("?->>'context'", a.data)
+    )
+    |> where([n, a, o, tm], is_nil(tm.user_id))
   end
 
   def for_user(user, opts \\ %{}) do

test/notification_test.exs

@@ -680,7 +680,7 @@ defmodule Pleroma.NotificationTest do
       assert Notification.for_user(user) == []
     end
 
-    test "it returns notifications for muted user with notifications and with_muted parameter" do
+    test "it returns notifications from a muted user when with_muted is set" do
       user = insert(:user)
       muted = insert(:user)
       {:ok, user} = User.mute(user, muted)
@@ -690,27 +690,27 @@ defmodule Pleroma.NotificationTest do
       assert length(Notification.for_user(user, %{with_muted: true})) == 1
     end
 
-    test "it returns notifications for blocked user and with_muted parameter" do
+    test "it doesn't return notifications from a blocked user when with_muted is set" do
       user = insert(:user)
       blocked = insert(:user)
       {:ok, user} = User.block(user, blocked)
 
       {:ok, _activity} = CommonAPI.post(blocked, %{"status" => "hey @#{user.nickname}"})
 
-      assert length(Notification.for_user(user, %{with_muted: true})) == 1
+      assert length(Notification.for_user(user, %{with_muted: true})) == 0
     end
 
-    test "it returns notificatitons for blocked domain and with_muted parameter" do
+    test "it doesn't return notifications from a domain-blocked user when with_muted is set" do
       user = insert(:user)
       blocked = insert(:user, ap_id: "http://some-domain.com")
       {:ok, user} = User.block_domain(user, "some-domain.com")
 
       {:ok, _activity} = CommonAPI.post(blocked, %{"status" => "hey @#{user.nickname}"})
 
-      assert length(Notification.for_user(user, %{with_muted: true})) == 1
+      assert length(Notification.for_user(user, %{with_muted: true})) == 0
     end
 
-    test "it returns notifications for muted thread with_muted parameter" do
+    test "it returns notifications from muted threads when with_muted is set" do
       user = insert(:user)
       another_user = insert(:user)