From 86988e71f012cf83dae25ce87fd505c9f8fc125b Mon Sep 17 00:00:00 2001
From: Oneric <oneric@oneric.stub>
Date: Wed, 6 Aug 2025 00:00:00 +0000
Subject: [PATCH] mix/database/resync_inlined_caches: also resync reactions

Relies on the fixups from preceding commits being applied.
---
 .../docs/administration/CLI_tasks/database.md |  1 +
 lib/mix/tasks/pleroma/database.ex             | 55 ++++++++++++++++++-
 2 files changed, 54 insertions(+), 2 deletions(-)

diff --git a/docs/docs/administration/CLI_tasks/database.md b/docs/docs/administration/CLI_tasks/database.md
index b5988929f..f21ad2d40 100644
--- a/docs/docs/administration/CLI_tasks/database.md
+++ b/docs/docs/administration/CLI_tasks/database.md
@@ -298,4 +298,5 @@ Run this task to detect and fix such desyncs.
 
 - `--no-announcements` - Skip fixing announcement counters and lists
 - `--no-likes` - Skip fixing like counters and lists
+- `--no-reactions` - Skip fixing inlined emoji reaction data
 - `--no-replies-count` - Skip fixing replies counters (purely cosmetic)
diff --git a/lib/mix/tasks/pleroma/database.ex b/lib/mix/tasks/pleroma/database.ex
index 79df0915e..d896d9e87 100644
--- a/lib/mix/tasks/pleroma/database.ex
+++ b/lib/mix/tasks/pleroma/database.ex
@@ -530,8 +530,8 @@ def run(["resync_inlined_caches" | args]) do
         strict: [
           replies_count: :boolean,
           announcements: :boolean,
-          likes: :boolean
-          # TODO: reactions (emoji reacts)
+          likes: :boolean,
+          reactions: :boolean
         ]
       )
 
@@ -548,6 +548,10 @@ def run(["resync_inlined_caches" | args]) do
     if Keyword.get(options, :likes, true) do
       resync_inlined_array("Like", "like")
     end
+
+    if Keyword.get(options, :reactions, true) do
+      resync_inlined_reactions()
+    end
   end
 
   def run(["clean_inlined_replies"]) do
@@ -725,4 +729,51 @@ defp resync_inlined_array(activity_type, basename) do
 
     Logger.info("Fixed inlined #{basename} array and counter for #{update_cnt} objects.")
   end
+
+  defp resync_inlined_reactions() do
+    expanded_ref =
+      Pleroma.Activity
+      |> select([a], %{
+        apid: selected_as(fragment("?->>'object'", a.data), :apid),
+        emoji_name: selected_as(fragment("TRIM(?->>'content', ':')", a.data), :emoji_name),
+        actors: fragment("ARRAY_AGG(DISTINCT ?->>'actor')", a.data),
+        url: selected_as(fragment("?#>>'{tag,0,icon,url}'", a.data), :url)
+      })
+      |> where(
+        [a],
+        fragment("?->>'type' = 'EmojiReact'", a.data) and
+          fragment("?->>'actor' IS NOT NULL", a.data) and
+          fragment("TRIM(?->>'content', ':') IS NOT NULL", a.data)
+      )
+      |> group_by([_], [selected_as(:apid), selected_as(:emoji_name), selected_as(:url)])
+
+    ref =
+      from(e in subquery(expanded_ref))
+      |> select([e], %{
+        apid: e.apid,
+        correct:
+          fragment(
+            "jsonb_agg(DISTINCT ARRAY[to_jsonb(?), to_jsonb(?), to_jsonb(?)])",
+            e.emoji_name,
+            e.actors,
+            e.url
+          )
+      })
+      |> group_by([e], e.apid)
+
+    {update_cnt, _} =
+      Pleroma.Object
+      |> join(:inner, [o], r in subquery(ref), on: r.apid == fragment("?->>'id'", o.data))
+      |> where(
+        [o, r],
+        not (fragment("? @> (?->'reactions')", r.correct, o.data) and
+               fragment("? <@ (?->'reactions')", r.correct, o.data))
+      )
+      |> update([o, r],
+        set: [data: fragment("jsonb_set(?, '{reactions}', ?)", o.data, r.correct)]
+      )
+      |> Pleroma.Repo.update_all([], timeout: :infinity)
+
+    Logger.info("Fixed inlined emoji reactions for #{update_cnt} objects.")
+  end
 end