live configure API timeline entries

app/Env.scala

@@ -91,6 +91,12 @@ final class Env(
 
   def net = common.netConfig
 
+  lazy val apiTimelineSetting = memo.settingStore[Int](
+    "apiTimelineEntries",
+    default = 10,
+    text = "API timeline entries to serve".some
+  )
+
   lazy val preloader     = wire[mashup.Preload]
   lazy val socialInfo    = wire[mashup.UserInfo.SocialApi]
   lazy val userNbGames   = wire[mashup.UserInfo.NbGamesApi]

app/controllers/Dev.scala

@@ -16,7 +16,8 @@ final class Dev(env: Env) extends LilaController(env) {
     env.report.slackScoreThresholdSetting,
     env.streamer.alwaysFeaturedSetting,
     env.rating.ratingFactorsSetting,
-    env.plan.donationGoalSetting
+    env.plan.donationGoalSetting,
+    env.apiTimelineSetting
   )
 
   def settings = Secure(_.Settings) { implicit ctx => _ =>

app/controllers/Timeline.scala

@@ -26,7 +26,7 @@ final class Timeline(env: Env) extends LilaController(env) {
             .map { html.timeline.more(_) },
       _ =>
         env.timeline.entryApi
-          .moreUserEntries(me.id, nb atMost 20)
+          .moreUserEntries(me.id, nb atMost env.apiTimelineSetting.get())
           .logTimeIfGt(s"timeline mobile $nb for ${me.id}", 10 seconds)
           .map { es =>
             Ok(Json.obj("entries" -> es))

modules/timeline/src/main/EntryApi.scala

@@ -27,7 +27,7 @@ final class EntryApi(
     userEntries(userId, nb) flatMap broadcast.interleave
 
   private def userEntries(userId: User.ID, max: Max): Fu[Vector[Entry]] =
-    coll
+    (max.value > 0) ?? coll
       .find(
         $doc(
           "users" -> userId,