Limit Fever unread items API to 10k most recent

lib/frenzy_web/controllers/fever_controller.ex

@@ -196,7 +196,12 @@ defmodule FrenzyWeb.FeverController do
       |> Enum.map(fn f -> f.id end)
 
     unread =
-      Repo.all(from i in Item, where: i.feed_id in ^feed_ids, where: [read: false])
+      Repo.all(
+        from i in Item,
+          where: i.feed_id in ^feed_ids and not i.read,
+          limit: 10000,
+          order_by: [desc: :id]
+      )
       |> Enum.map(fn item -> item.id end)
       |> Enum.join(",")
 
@@ -222,19 +227,20 @@ defmodule FrenzyWeb.FeverController do
     items =
       cond do
         Map.has_key?(params, "with_ids") ->
-          params["with_ids"]
-          |> String.split(",")
-          |> Enum.map(fn id ->
-            {id, _} = id |> String.trim() |> Integer.parse()
-            item = Repo.get(Item, id)
+          item_ids =
+            params["with_ids"]
+            |> String.split(",")
+            |> Enum.map(fn str ->
+              {id, _} = str |> String.trim() |> Integer.parse()
+              id
+            end)
 
-            if not is_nil(item) and item.feed_id in feed_ids do
-              item
-            else
-              nil
-            end
-          end)
-          |> Enum.reject(&is_nil/1)
+          Repo.all(
+            from i in Item,
+              where: i.id in ^item_ids,
+              where: i.feed_id in ^feed_ids,
+              where: not i.tombstone
+          )
 
         Map.has_key?(params, "since_id") ->
           since = Repo.get(Item, params["since_id"])