expose created hook/seek id in mobile API

app/controllers/Setup.scala

@@ -93,7 +93,12 @@ object Setup extends LilaController with TheftPrevention with play.api.http.Cont
         api = _ => BadRequest(err.errorsAsJson).fuccess),
       config => (ctx.userId ?? Env.relation.api.blocking) flatMap { blocking =>
         JsonOk {
-          env.processor.hook(config, uid, lila.common.HTTPRequest sid req, blocking) inject Json.obj("ok" -> true)
+          env.processor.hook(config, uid, lila.common.HTTPRequest sid req, blocking) map { hookId =>
+            Json.obj(
+              "ok" -> true,
+              "hook" -> Json.obj(
+                "id" -> hookId))
+          }
         }
       }
     )

modules/setup/src/main/Processor.scala

@@ -53,12 +53,18 @@ private[setup] final class Processor(
     config: HookConfig,
     uid: String,
     sid: Option[String],
-    blocking: Set[String])(implicit ctx: UserContext): Funit =
-    saveConfig(_ withHook config) >>- {
+    blocking: Set[String])(implicit ctx: UserContext): Fu[String] =
+      saveConfig(_ withHook config) >> {
       config.hook(uid, ctx.me, sid, blocking) match {
-        case Left(hook)        => lobby ! AddHook(hook)
-        case Right(Some(seek)) => lobby ! AddSeek(seek)
-        case _                 =>
+        case Left(hook) => fuccess {
+          lobby ! AddHook(hook)
+          hook.id
+        }
+        case Right(Some(seek)) => fuccess {
+          lobby ! AddSeek(seek)
+          seek.id
+        }
+        case _ => fufail("Can't create seek")
       }
     }