Apply updates correctly.

Telegram/SourceFiles/data/data_stories.cpp

@@ -166,7 +166,7 @@ Main::Session &Stories::session() const {
 }
 
 void Stories::apply(const MTPDupdateStories &data) {
-	pushToFront(parse(data.vstories()));
+	applyChanges(parse(data.vstories()));
 	_allChanged.fire({});
 }
 
@@ -402,14 +402,42 @@ void Stories::applyDeleted(FullStoryId id) {
 			session().changes().storyUpdated(
 				story.get(),
 				UpdateFlag::Destroyed);
+			removeDependencyStory(story.get());
 			if (i->second.empty()) {
 				_stories.erase(i);
 			}
 		}
 	}
+	const auto j = ranges::find(_all, id.peer, [](const StoriesList &list) {
+		return list.user->id;
+	});
+	if (j != end(_all)) {
+		const auto till = ranges::remove(j->ids, id.story);
+		const auto removed = int(std::distance(till, end(j->ids)));
+		if (till != end(j->ids)) {
+			j->ids.erase(till, end(j->ids));
+			j->total = std::max(j->total - removed, 0);
+			if (j->ids.empty()) {
+				_all.erase(j);
+			}
+			_allChanged.fire({});
+		}
+	}
 	_deleted.emplace(id);
 }
 
+void Stories::removeDependencyStory(not_null<Story*> story) {
+	const auto i = _dependentMessages.find(story);
+	if (i != end(_dependentMessages)) {
+		const auto items = std::move(i->second);
+		_dependentMessages.erase(i);
+
+		for (const auto &dependent : items) {
+			dependent->dependencyStoryRemoved(story);
+		}
+	}
+}
+
 const std::vector<StoriesList> &Stories::all() {
 	return _all;
 }
@@ -465,12 +493,21 @@ void Stories::pushToBack(StoriesList &&list) {
 	}
 }
 
-void Stories::pushToFront(StoriesList &&list) {
+void Stories::applyChanges(StoriesList &&list) {
 	const auto i = ranges::find(_all, list.user, &StoriesList::user);
 	if (i != end(_all)) {
-		*i = std::move(list);
+		auto added = false;
-		ranges::rotate(begin(_all), i, i + 1);
+		for (const auto id : list.ids) {
-	} else {
+			if (!ranges::contains(i->ids, id)) {
+				i->ids.insert(begin(i->ids), id);
+				++i->total;
+				added = true;
+			}
+		}
+		if (added) {
+			ranges::rotate(begin(_all), i, i + 1);
+		}
+	} else if (!list.ids.empty()) {
 		_all.insert(begin(_all), std::move(list));
 	}
 }

Telegram/SourceFiles/data/data_stories.h

@@ -123,8 +123,9 @@ private:
 	void finalizeResolve(FullStoryId id);
 
 	void pushToBack(StoriesList &&list);
-	void pushToFront(StoriesList &&list);
+	void applyChanges(StoriesList &&list);
 	void applyDeleted(FullStoryId id);
+	void removeDependencyStory(not_null<Story*> story);
 
 	const not_null<Session*> _owner;
 	base::flat_map<

Telegram/SourceFiles/history/history_item.cpp

@@ -725,6 +725,18 @@ void HistoryItem::dependencyItemRemoved(not_null<HistoryItem*> dependency) {
 	}
 }
 
+void HistoryItem::dependencyStoryRemoved(
+		not_null<Data::Story*> dependency) {
+	if (const auto reply = Get<HistoryMessageReply>()) {
+		const auto documentId = reply->replyToDocumentId;
+		reply->storyRemoved(this, dependency);
+		if (documentId != reply->replyToDocumentId
+			&& generateLocalEntitiesByReply()) {
+			_history->owner().requestItemTextRefresh(this);
+		}
+	}
+}
+
 void HistoryItem::updateDependencyItem() {
 	if (const auto reply = Get<HistoryMessageReply>()) {
 		const auto documentId = reply->replyToDocumentId;

Telegram/SourceFiles/history/history_item.h

@@ -57,6 +57,7 @@ class MessageReactions;
 class ForumTopic;
 class Thread;
 struct SponsoredFrom;
+class Story;
 } // namespace Data
 
 namespace Main {
@@ -185,6 +186,7 @@ public:
 	};
 
 	void dependencyItemRemoved(not_null<HistoryItem*> dependency);
+	void dependencyStoryRemoved(not_null<Data::Story*> dependency);
 	void updateDependencyItem();
 	[[nodiscard]] MsgId dependencyMsgId() const;
 	[[nodiscard]] bool notificationReady() const;

Telegram/SourceFiles/history/history_item_components.cpp

@@ -369,7 +369,14 @@ void HistoryMessageReply::clearData(not_null<HistoryItem*> holder) {
 			replyToMsg.get());
 		replyToMsg = nullptr;
 	}
+	if (replyToStory) {
+		holder->history()->owner().stories().unregisterDependentMessage(
+			holder,
+			replyToStory.get());
+		replyToStory = nullptr;
+	}
 	replyToMsgId = 0;
+	replyToStoryId = 0;
 	refreshReplyToMedia();
 }
 
@@ -466,14 +473,23 @@ void HistoryMessageReply::resize(int width) const {
 }
 
 void HistoryMessageReply::itemRemoved(
-		HistoryItem *holder,
+		not_null<HistoryItem*> holder,
-		HistoryItem *removed) {
+		not_null<HistoryItem*> removed) {
 	if (replyToMsg.get() == removed) {
 		clearData(holder);
 		holder->history()->owner().requestItemResize(holder);
 	}
 }
 
+void HistoryMessageReply::storyRemoved(
+		not_null<HistoryItem*> holder,
+		not_null<Data::Story*> removed) {
+	if (replyToStory.get() == removed) {
+		clearData(holder);
+		holder->history()->owner().requestItemResize(holder);
+	}
+}
+
 void HistoryMessageReply::paint(
 		Painter &p,
 		not_null<const HistoryView::Element*> holder,

Telegram/SourceFiles/history/history_item_components.h

@@ -249,7 +249,12 @@ struct HistoryMessageReply
 	[[nodiscard]] bool isNameUpdated(not_null<HistoryItem*> holder) const;
 	void updateName(not_null<HistoryItem*> holder) const;
 	void resize(int width) const;
-	void itemRemoved(HistoryItem *holder, HistoryItem *removed);
+	void itemRemoved(
+		not_null<HistoryItem*> holder,
+		not_null<HistoryItem*> removed);
+	void storyRemoved(
+		not_null<HistoryItem*> holder,
+		not_null<Data::Story*> removed);
 
 	void paint(
 		Painter &p,