430 lines
		
	
	
	
		
			12 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			430 lines
		
	
	
	
		
			12 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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#include "base/qt/qt_compare.h"
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#include "base/expected.h"
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#include "base/timer.h"
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#include "base/weak_ptr.h"
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#include "data/data_story.h"
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namespace Main {
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class Session;
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} // namespace Main
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namespace Ui {
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class Show;
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enum class ReportReason;
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} // namespace Ui
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namespace Data {
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class Folder;
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class Session;
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struct StoryView;
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struct StoryIdDates;
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class Story;
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class StoryPreload;
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struct StoriesIds {
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	base::flat_set<StoryId, std::greater<>> list;
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	std::vector<StoryId> pinnedToTop;
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	friend inline bool operator==(
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		const StoriesIds&,
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		const StoriesIds&) = default;
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};
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[[nodiscard]] std::vector<StoryId> RespectingPinned(const StoriesIds &ids);
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struct StoriesSourceInfo {
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	PeerId id = 0;
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	TimeId last = 0;
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	uint32 count : 15 = 0;
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	uint32 unreadCount : 15 = 0;
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	uint32 premium : 1 = 0;
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	friend inline bool operator==(
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		StoriesSourceInfo,
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		StoriesSourceInfo) = default;
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};
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struct StoriesSource {
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	not_null<PeerData*> peer;
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	base::flat_set<StoryIdDates> ids;
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	StoryId readTill = 0;
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	bool hidden = false;
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	[[nodiscard]] StoriesSourceInfo info() const;
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	[[nodiscard]] int unreadCount() const;
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	[[nodiscard]] StoryIdDates toOpen() const;
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	friend inline bool operator==(StoriesSource, StoriesSource) = default;
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};
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enum class NoStory : uchar {
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	Unknown,
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	Deleted,
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};
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enum class StorySourcesList : uchar {
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	NotHidden,
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	Hidden,
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};
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struct StoriesContextSingle {
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	friend inline auto operator<=>(
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		StoriesContextSingle,
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		StoriesContextSingle) = default;
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	friend inline bool operator==(StoriesContextSingle, StoriesContextSingle) = default;
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};
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struct StoriesContextPeer {
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	friend inline auto operator<=>(
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		StoriesContextPeer,
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		StoriesContextPeer) = default;
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	friend inline bool operator==(StoriesContextPeer, StoriesContextPeer) = default;
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};
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struct StoriesContextSaved {
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	friend inline auto operator<=>(
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		StoriesContextSaved,
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		StoriesContextSaved) = default;
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	friend inline bool operator==(StoriesContextSaved, StoriesContextSaved) = default;
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};
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struct StoriesContextArchive {
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	friend inline auto operator<=>(
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		StoriesContextArchive,
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		StoriesContextArchive) = default;
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	friend inline bool operator==(StoriesContextArchive, StoriesContextArchive) = default;
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};
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struct StoriesContext {
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	std::variant<
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		StoriesContextSingle,
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		StoriesContextPeer,
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		StoriesContextSaved,
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		StoriesContextArchive,
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		StorySourcesList> data;
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	friend inline auto operator<=>(
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		StoriesContext,
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		StoriesContext) = default;
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	friend inline bool operator==(StoriesContext, StoriesContext) = default;
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};
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struct StealthMode {
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	TimeId enabledTill = 0;
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	TimeId cooldownTill = 0;
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	friend inline auto operator<=>(StealthMode, StealthMode) = default;
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	friend inline bool operator==(StealthMode, StealthMode) = default;
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};
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inline constexpr auto kStorySourcesListCount = 2;
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class Stories final : public base::has_weak_ptr {
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public:
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	explicit Stories(not_null<Session*> owner);
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	~Stories();
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	static constexpr auto kInProfileToastDuration = 4 * crl::time(1000);
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	[[nodiscard]] Session &owner() const;
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	[[nodiscard]] Main::Session &session() const;
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	void updateDependentMessages(not_null<Data::Story*> story);
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	void registerDependentMessage(
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		not_null<HistoryItem*> dependent,
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		not_null<Data::Story*> dependency);
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	void unregisterDependentMessage(
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		not_null<HistoryItem*> dependent,
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		not_null<Data::Story*> dependency);
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	void loadMore(StorySourcesList list);
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	void apply(const MTPDupdateStory &data);
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	void apply(const MTPDupdateReadStories &data);
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	void apply(const MTPStoriesStealthMode &stealthMode);
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	void apply(not_null<PeerData*> peer, const MTPPeerStories *data);
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	Story *applySingle(PeerId peerId, const MTPstoryItem &story);
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	void loadAround(FullStoryId id, StoriesContext context);
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	const StoriesSource *source(PeerId id) const;
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	[[nodiscard]] const std::vector<StoriesSourceInfo> &sources(
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		StorySourcesList list) const;
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	[[nodiscard]] bool sourcesLoaded(StorySourcesList list) const;
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	[[nodiscard]] rpl::producer<> sourcesChanged(
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		StorySourcesList list) const;
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	[[nodiscard]] rpl::producer<PeerId> sourceChanged() const;
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	[[nodiscard]] rpl::producer<PeerId> itemsChanged() const;
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	[[nodiscard]] base::expected<not_null<Story*>, NoStory> lookup(
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		FullStoryId id) const;
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	void resolve(FullStoryId id, Fn<void()> done, bool force = false);
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	[[nodiscard]] std::shared_ptr<HistoryItem> resolveItem(FullStoryId id);
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	[[nodiscard]] std::shared_ptr<HistoryItem> resolveItem(
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		not_null<Story*> story);
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	[[nodiscard]] bool isQuitPrevent();
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	void markAsRead(FullStoryId id, bool viewed);
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	void toggleHidden(
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		PeerId peerId,
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		bool hidden,
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		std::shared_ptr<Ui::Show> show);
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	static constexpr auto kViewsPerPage = 50;
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	void loadViewsSlice(
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		not_null<PeerData*> peer,
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		StoryId id,
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		QString offset,
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		Fn<void(StoryViews)> done);
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	void loadReactionsSlice(
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		not_null<PeerData*> peer,
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		StoryId id,
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		QString offset,
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		Fn<void(StoryViews)> done);
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	[[nodiscard]] bool hasArchive(not_null<PeerData*> peer) const;
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	[[nodiscard]] const StoriesIds &archive(PeerId peerId) const;
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	[[nodiscard]] rpl::producer<PeerId> archiveChanged() const;
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	[[nodiscard]] int archiveCount(PeerId peerId) const;
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	[[nodiscard]] bool archiveCountKnown(PeerId peerId) const;
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	[[nodiscard]] bool archiveLoaded(PeerId peerId) const;
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	void archiveLoadMore(PeerId peerId);
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	[[nodiscard]] const StoriesIds &saved(PeerId peerId) const;
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	[[nodiscard]] rpl::producer<PeerId> savedChanged() const;
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	[[nodiscard]] int savedCount(PeerId peerId) const;
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	[[nodiscard]] bool savedCountKnown(PeerId peerId) const;
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	[[nodiscard]] bool savedLoaded(PeerId peerId) const;
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	void savedLoadMore(PeerId peerId);
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	void deleteList(const std::vector<FullStoryId> &ids);
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	void toggleInProfileList(
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		const std::vector<FullStoryId> &ids,
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		bool inProfile);
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	[[nodiscard]] bool canTogglePinnedList(
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		const std::vector<FullStoryId> &ids,
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		bool pin) const;
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	[[nodiscard]] int maxPinnedCount() const;
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	void togglePinnedList(const std::vector<FullStoryId> &ids, bool pin);
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	void report(
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		std::shared_ptr<Ui::Show> show,
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		FullStoryId id,
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		Ui::ReportReason reason,
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		QString text);
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	void incrementPreloadingMainSources();
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	void decrementPreloadingMainSources();
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	void incrementPreloadingHiddenSources();
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	void decrementPreloadingHiddenSources();
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	void setPreloadingInViewer(std::vector<FullStoryId> ids);
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	struct PeerSourceState {
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		StoryId maxId = 0;
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		StoryId readTill = 0;
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	};
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	[[nodiscard]] std::optional<PeerSourceState> peerSourceState(
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		not_null<PeerData*> peer,
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		StoryId storyMaxId);
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	[[nodiscard]] bool isUnread(not_null<Story*> story);
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	enum class Polling {
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		Chat,
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		Viewer,
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	};
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	void registerPolling(not_null<Story*> story, Polling polling);
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	void unregisterPolling(not_null<Story*> story, Polling polling);
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	[[nodiscard]] bool registerPolling(FullStoryId id, Polling polling);
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	void unregisterPolling(FullStoryId id, Polling polling);
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	void requestPeerStories(
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		not_null<PeerData*> peer,
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		Fn<void()> done = nullptr);
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	void savedStateChanged(not_null<Story*> story);
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	[[nodiscard]] std::shared_ptr<HistoryItem> lookupItem(
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		not_null<Story*> story);
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	[[nodiscard]] StealthMode stealthMode() const;
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	[[nodiscard]] rpl::producer<StealthMode> stealthModeValue() const;
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	void activateStealthMode(Fn<void()> done = nullptr);
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	void sendReaction(FullStoryId id, Data::ReactionId reaction);
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private:
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	struct Set {
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		StoriesIds ids;
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		int total = -1;
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		StoryId lastId = 0;
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		bool loaded = false;
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		mtpRequestId requestId = 0;
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	};
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	struct PollingSettings {
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		int chat = 0;
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		int viewer = 0;
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	};
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	void parseAndApply(const MTPPeerStories &stories);
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	[[nodiscard]] Story *parseAndApply(
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		not_null<PeerData*> peer,
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		const MTPDstoryItem &data,
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		TimeId now);
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	StoryIdDates parseAndApply(
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		not_null<PeerData*> peer,
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		const MTPstoryItem &story,
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		TimeId now);
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	void processResolvedStories(
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		not_null<PeerData*> peer,
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		const QVector<MTPStoryItem> &list);
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	void sendResolveRequests();
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	void finalizeResolve(FullStoryId id);
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	void updatePeerStoriesState(not_null<PeerData*> peer);
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	[[nodiscard]] Set *lookupArchive(not_null<PeerData*> peer);
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	void clearArchive(not_null<PeerData*> peer);
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	void applyDeleted(not_null<PeerData*> peer, StoryId id);
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	void applyExpired(FullStoryId id);
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	void applyRemovedFromActive(FullStoryId id);
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	void applyDeletedFromSources(PeerId id, StorySourcesList list);
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	void removeDependencyStory(not_null<Story*> story);
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	void sort(StorySourcesList list);
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	bool bumpReadTill(PeerId peerId, StoryId maxReadTill);
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	void requestReadTills();
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	void sendMarkAsReadRequests();
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	void sendMarkAsReadRequest(not_null<PeerData*> peer, StoryId tillId);
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	void sendIncrementViewsRequests();
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	void checkQuitPreventFinished();
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	void registerExpiring(TimeId expires, FullStoryId id);
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	void scheduleExpireTimer();
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	void processExpired();
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	void preloadSourcesChanged(StorySourcesList list);
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	bool rebuildPreloadSources(StorySourcesList list);
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	void continuePreloading();
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	[[nodiscard]] bool shouldContinuePreload(FullStoryId id) const;
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	[[nodiscard]] FullStoryId nextPreloadId() const;
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	void startPreloading(not_null<Story*> story);
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	void preloadFinished(FullStoryId id, bool markAsPreloaded = false);
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	void preloadListsMore();
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	void notifySourcesChanged(StorySourcesList list);
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	void pushHiddenCountsToFolder();
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	void setPinnedToTop(
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		PeerId peerId,
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		std::vector<StoryId> &&pinnedToTop);
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	[[nodiscard]] int pollingInterval(
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		const PollingSettings &settings) const;
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	void maybeSchedulePolling(
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		not_null<Story*> story,
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		const PollingSettings &settings,
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		TimeId now);
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	void sendPollingRequests();
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	void sendPollingViewsRequests();
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	void sendViewsSliceRequest();
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	void sendViewsCountsRequest();
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	const not_null<Session*> _owner;
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	std::unordered_map<
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		PeerId,
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		base::flat_map<StoryId, std::unique_ptr<Story>>> _stories;
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	base::flat_map<FullStoryId, std::unique_ptr<Story>> _deletingStories;
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	std::unordered_map<
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		PeerId,
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		base::flat_map<StoryId, std::weak_ptr<HistoryItem>>> _items;
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	base::flat_multi_map<TimeId, FullStoryId> _expiring;
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	base::flat_set<PeerId> _peersWithDeletedStories;
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	base::flat_set<FullStoryId> _deleted;
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	base::Timer _expireTimer;
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	bool _expireSchedulePosted = false;
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	base::flat_map<
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		PeerId,
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		base::flat_map<StoryId, std::vector<Fn<void()>>>> _resolvePending;
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	base::flat_map<
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		PeerId,
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		base::flat_map<StoryId, std::vector<Fn<void()>>>> _resolveSent;
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	std::unordered_map<
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		not_null<Data::Story*>,
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		base::flat_set<not_null<HistoryItem*>>> _dependentMessages;
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	std::unordered_map<PeerId, StoriesSource> _all;
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	std::vector<StoriesSourceInfo> _sources[kStorySourcesListCount];
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	rpl::event_stream<> _sourcesChanged[kStorySourcesListCount];
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	bool _sourcesLoaded[kStorySourcesListCount] = { false };
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	QString _sourcesStates[kStorySourcesListCount];
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	Folder *_folderForHidden = nullptr;
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	mtpRequestId _loadMoreRequestId[kStorySourcesListCount] = { 0 };
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	rpl::event_stream<PeerId> _sourceChanged;
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	rpl::event_stream<PeerId> _itemsChanged;
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	std::unordered_map<PeerId, Set> _archive;
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	rpl::event_stream<PeerId> _archiveChanged;
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	std::unordered_map<PeerId, Set> _saved;
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	rpl::event_stream<PeerId> _savedChanged;
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	base::flat_set<PeerId> _markReadPending;
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	base::Timer _markReadTimer;
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	base::flat_set<PeerId> _markReadRequests;
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	base::flat_map<
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		not_null<PeerData*>,
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		std::vector<Fn<void()>>> _requestingPeerStories;
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	base::flat_map<PeerId, base::flat_set<StoryId>> _incrementViewsPending;
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	base::Timer _incrementViewsTimer;
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	base::flat_set<PeerId> _incrementViewsRequests;
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	PeerData *_viewsStoryPeer = nullptr;
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	StoryId _viewsStoryId = 0;
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	QString _viewsOffset;
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	Fn<void(StoryViews)> _viewsDone;
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	mtpRequestId _viewsRequestId = 0;
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	PeerData *_reactionsStoryPeer = nullptr;
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	StoryId _reactionsStoryId = 0;
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	QString _reactionsOffset;
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	Fn<void(StoryViews)> _reactionsDone;
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	mtpRequestId _reactionsRequestId = 0;
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	base::flat_set<FullStoryId> _preloaded;
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	std::vector<FullStoryId> _toPreloadSources[kStorySourcesListCount];
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	std::vector<FullStoryId> _toPreloadViewer;
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	std::unique_ptr<StoryPreload> _preloading;
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	int _preloadingHiddenSourcesCounter = 0;
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	int _preloadingMainSourcesCounter = 0;
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	base::flat_map<PeerId, StoryId> _readTill;
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	base::flat_set<FullStoryId> _pendingReadTillItems;
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	base::flat_map<not_null<PeerData*>, StoryId> _pendingPeerStateMaxId;
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	mtpRequestId _readTillsRequestId = 0;
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	bool _readTillReceived = false;
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	base::flat_map<not_null<Story*>, PollingSettings> _pollingSettings;
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	base::flat_set<not_null<Story*>> _pollingViews;
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	base::Timer _pollingTimer;
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	base::Timer _pollingViewsTimer;
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	rpl::variable<StealthMode> _stealthMode;
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	rpl::lifetime _lifetime;
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};
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} // namespace Data
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