Render edits

src/Cache.cpp

@@ -108,6 +108,11 @@ Cache::isHiddenEvent(lmdb::txn &txn,
                      const std::string &room_id)
 {
         using namespace mtx::events;
+
+        // Always hide edits
+        if (mtx::accessors::relations(e).replaces())
+                return true;
+
         if (auto encryptedEvent = std::get_if<EncryptedEvent<msg::Encrypted>>(&e)) {
                 MegolmSessionIndex index;
                 index.room_id    = room_id;
@@ -1891,6 +1896,31 @@ Cache::getTimelineIndex(const std::string &room_id, std::string_view event_id)
         return *val.data<uint64_t>();
 }
 
+std::optional<uint64_t>
+Cache::getArrivalIndex(const std::string &room_id, std::string_view event_id)
+{
+        auto txn = lmdb::txn::begin(env_, nullptr, MDB_RDONLY);
+
+        lmdb::dbi orderDb{0};
+        try {
+                orderDb = getEventToOrderDb(txn, room_id);
+        } catch (lmdb::runtime_error &e) {
+                nhlog::db()->error("Can't open db for room '{}', probably doesn't exist yet. ({})",
+                                   room_id,
+                                   e.what());
+                return {};
+        }
+
+        lmdb::val indexVal{event_id.data(), event_id.size()}, val;
+
+        bool success = lmdb::dbi_get(txn, orderDb, indexVal, val);
+        if (!success) {
+                return {};
+        }
+
+        return *val.data<uint64_t>();
+}
+
 std::optional<std::string>
 Cache::getTimelineEventId(const std::string &room_id, uint64_t index)
 {