From 03c8bf0cd32322e5d2be683b81201d03944d68c0 Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Mon, 14 Aug 2023 00:29:57 +0300
Subject: [PATCH] Support StoryInteractionInfo.has_viewers_.

---
 td/telegram/StoryInteractionInfo.cpp | 5 +++--
 td/telegram/StoryInteractionInfo.h   | 3 ++-
 td/telegram/StoryInteractionInfo.hpp | 9 +++++++++
 3 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/td/telegram/StoryInteractionInfo.cpp b/td/telegram/StoryInteractionInfo.cpp
index f82953be8..da6c23e73 100644
--- a/td/telegram/StoryInteractionInfo.cpp
+++ b/td/telegram/StoryInteractionInfo.cpp
@@ -41,6 +41,7 @@ StoryInteractionInfo::StoryInteractionInfo(Td *td, telegram_api::object_ptr<tele
     LOG(ERROR) << "Receive " << reaction_count_ << " story reactions";
     reaction_count_ = 0;
   }
+  has_viewers_ = story_views->has_viewers_;
 }
 
 void StoryInteractionInfo::add_dependencies(Dependencies &dependencies) const {
@@ -61,7 +62,7 @@ bool StoryInteractionInfo::set_recent_viewer_user_ids(vector<UserId> &&user_ids)
 }
 
 bool StoryInteractionInfo::definitely_has_no_user(UserId user_id) const {
-  return !is_empty() && view_count_ <= static_cast<int32>(MAX_RECENT_VIEWERS) &&
+  return !is_empty() && view_count_ == static_cast<int32>(recent_viewer_user_ids_.size()) &&
          !contains(recent_viewer_user_ids_, user_id);
 }
 
@@ -76,7 +77,7 @@ td_api::object_ptr<td_api::storyInteractionInfo> StoryInteractionInfo::get_story
 
 bool operator==(const StoryInteractionInfo &lhs, const StoryInteractionInfo &rhs) {
   return lhs.recent_viewer_user_ids_ == rhs.recent_viewer_user_ids_ && lhs.view_count_ == rhs.view_count_ &&
-         lhs.reaction_count_ == rhs.reaction_count_;
+         lhs.reaction_count_ == rhs.reaction_count_ && lhs.has_viewers_ == rhs.has_viewers_;
 }
 
 StringBuilder &operator<<(StringBuilder &string_builder, const StoryInteractionInfo &info) {
diff --git a/td/telegram/StoryInteractionInfo.h b/td/telegram/StoryInteractionInfo.h
index b05298056..dbe3eed97 100644
--- a/td/telegram/StoryInteractionInfo.h
+++ b/td/telegram/StoryInteractionInfo.h
@@ -22,6 +22,7 @@ class StoryInteractionInfo {
   vector<UserId> recent_viewer_user_ids_;
   int32 view_count_ = -1;
   int32 reaction_count_ = 0;
+  bool has_viewers_ = false;
 
   static constexpr size_t MAX_RECENT_VIEWERS = 3;
 
@@ -39,7 +40,7 @@ class StoryInteractionInfo {
   }
 
   bool has_hidden_viewers() const {
-    return view_count_ < 0 || (recent_viewer_user_ids_.empty() && view_count_ > 0);
+    return view_count_ < 0 || !has_viewers_;
   }
 
   void add_dependencies(Dependencies &dependencies) const;
diff --git a/td/telegram/StoryInteractionInfo.hpp b/td/telegram/StoryInteractionInfo.hpp
index b47afef0d..112010298 100644
--- a/td/telegram/StoryInteractionInfo.hpp
+++ b/td/telegram/StoryInteractionInfo.hpp
@@ -18,9 +18,12 @@ void StoryInteractionInfo::store(StorerT &storer) const {
   using td::store;
   bool has_recent_viewer_user_ids = !recent_viewer_user_ids_.empty();
   bool has_reaction_count = reaction_count_ > 0;
+  bool know_has_viewers = true;
   BEGIN_STORE_FLAGS();
   STORE_FLAG(has_recent_viewer_user_ids);
   STORE_FLAG(has_reaction_count);
+  STORE_FLAG(know_has_viewers);
+  STORE_FLAG(has_viewers_);
   END_STORE_FLAGS();
   store(view_count_, storer);
   if (has_recent_viewer_user_ids) {
@@ -36,9 +39,12 @@ void StoryInteractionInfo::parse(ParserT &parser) {
   using td::parse;
   bool has_recent_viewer_user_ids;
   bool has_reaction_count;
+  bool know_has_viewers;
   BEGIN_PARSE_FLAGS();
   PARSE_FLAG(has_recent_viewer_user_ids);
   PARSE_FLAG(has_reaction_count);
+  PARSE_FLAG(know_has_viewers);
+  PARSE_FLAG(has_viewers_);
   END_PARSE_FLAGS();
   parse(view_count_, parser);
   if (has_recent_viewer_user_ids) {
@@ -47,6 +53,9 @@ void StoryInteractionInfo::parse(ParserT &parser) {
   if (has_reaction_count) {
     parse(reaction_count_, parser);
   }
+  if (!know_has_viewers) {
+    has_viewers_ = (view_count_ > 0 && !has_recent_viewer_user_ids) || reaction_count_ > 0;
+  }
 }
 
 }  // namespace td