From 0fa1cc9c328ea865f10cdd5841962de5064420e5 Mon Sep 17 00:00:00 2001
From: Thibault Duplessis <t@lichess.org>
Date: Fri, 25 Oct 2024 13:41:47 +0200
Subject: [PATCH] hide muted appeal messages in mod timeline

---
 modules/api/src/main/ModTimeline.scala | 6 ++++--
 modules/appeal/src/main/Appeal.scala   | 7 +++++--
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/modules/api/src/main/ModTimeline.scala b/modules/api/src/main/ModTimeline.scala
index 3df79f37ef160..8bd184caee5cb 100644
--- a/modules/api/src/main/ModTimeline.scala
+++ b/modules/api/src/main/ModTimeline.scala
@@ -26,8 +26,10 @@ case class ModTimeline(
   lazy val all: List[Event] =
     val reportEvents: List[Event] = reports.flatMap: r =>
       r.done.map(ReportClose(r, _)).toList ::: reportAtoms(r)
-    val appealMsgs: List[Event] = appeal.so(_.msgs.toList)
-    val playBans: List[Event]   = playbanRecord.so(_.bans.toList).toNel.map(PlayBans(_)).toList
+    val appealMsgs: List[Event] = appeal.so: a =>
+      a.msgs.toList.takeWhile: msg =>
+        a.mutedSince.fold(true)(mutedAt => msg.at.isBefore(mutedAt))
+    val playBans: List[Event] = playbanRecord.so(_.bans.toList).toNel.map(PlayBans(_)).toList
     val concat: List[Event] =
       modLog ::: appealMsgs ::: notes ::: reportEvents ::: playBans ::: flaggedPublicLines
     // latest first
diff --git a/modules/appeal/src/main/Appeal.scala b/modules/appeal/src/main/Appeal.scala
index a97a7c5122f3a..66a075d5a1763 100644
--- a/modules/appeal/src/main/Appeal.scala
+++ b/modules/appeal/src/main/Appeal.scala
@@ -8,8 +8,8 @@ import lila.ui.Icon
 
 case class Appeal(
     @Key("_id") id: AppealId,
-    msgs: Vector[AppealMsg],
-    status: Appeal.Status, // from the moderators POV
+    msgs: Vector[AppealMsg], // chronological order, oldest first
+    status: Appeal.Status,   // from the moderators POV
     createdAt: Instant,
     updatedAt: Instant,
     // date of first player message without a mod reply
@@ -50,6 +50,9 @@ case class Appeal(
   def read       = copy(status = Appeal.Status.Read)
   def toggleMute = if isMuted then read else copy(status = Appeal.Status.Muted)
 
+  lazy val mutedSince: Option[Instant] = isMuted.so:
+    msgs.reverse.takeWhile(m => !isByMod(m)).lastOption.map(_.at)
+
   def isByMod(msg: AppealMsg) = msg.by != id
 
 object Appeal: