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Telegram/SourceFiles/chat_helpers/emoji_interactions.h

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+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#pragma once
+
+#include "base/timer.h"
+
+class PeerData;
+class HistoryItem;
+class DocumentData;
+
+namespace Data {
+class DocumentMedia;
+} // namespace Data
+
+namespace Main {
+class Session;
+} // namespace Main
+
+namespace HistoryView {
+class Element;
+} // namespace HistoryView
+
+namespace ChatHelpers {
+
+struct EmojiInteractionPlayRequest {
+	QString emoticon;
+	not_null<HistoryItem*> item;
+	std::shared_ptr<Data::DocumentMedia> media;
+	crl::time shouldHaveStartedAt = 0;
+	bool incoming = false;
+};
+
+struct EmojiInteractionsBunch {
+	struct Single {
+		int index = 0;
+		double time = 0;
+	};
+	std::vector<Single> interactions;
+};
+
+struct EmojiInteractionSeen {
+	not_null<PeerData*> peer;
+	QString emoticon;
+};
+
+class EmojiInteractions final {
+public:
+	explicit EmojiInteractions(not_null<Main::Session*> session);
+	~EmojiInteractions();
+
+	using PlayRequest = EmojiInteractionPlayRequest;
+
+	void startOutgoing(not_null<const HistoryView::Element*> view);
+	void startIncoming(
+		not_null<PeerData*> peer,
+		MsgId messageId,
+		const QString &emoticon,
+		EmojiInteractionsBunch &&bunch);
+
+	void seenOutgoing(not_null<PeerData*> peer, const QString &emoticon);
+	[[nodiscard]] rpl::producer<EmojiInteractionSeen> seen() const {
+		return _seen.events();
+	}
+
+	[[nodiscard]] rpl::producer<PlayRequest> playRequests() const {
+		return _playRequests.events();
+	}
+	void playStarted(not_null<PeerData*> peer, QString emoji);
+
+	[[nodiscard]] static EmojiInteractionsBunch Parse(const QByteArray &json);
+	[[nodiscard]] static QByteArray ToJson(
+		const EmojiInteractionsBunch &bunch);
+
+private:
+	struct Animation {
+		QString emoticon;
+		not_null<EmojiPtr> emoji;
+		not_null<DocumentData*> document;
+		std::shared_ptr<Data::DocumentMedia> media;
+		crl::time scheduledAt = 0;
+		crl::time startedAt = 0;
+		bool incoming = false;
+		int index = 0;
+	};
+	struct PlaySent {
+		mtpRequestId lastRequestId = 0;
+		crl::time lastDoneReceivedAt = 0;
+	};
+	struct CheckResult {
+		crl::time nextCheckAt = 0;
+		bool waitingForDownload = false;
+	};
+	[[nodiscard]] static CheckResult Combine(CheckResult a, CheckResult b);
+
+	void check(crl::time now = 0);
+	[[nodiscard]] CheckResult checkAnimations(crl::time now);
+	[[nodiscard]] CheckResult checkAnimations(
+		crl::time now,
+		base::flat_map<not_null<HistoryItem*>, std::vector<Animation>> &map);
+	[[nodiscard]] CheckResult checkAccumulated(crl::time now);
+	void sendAccumulatedOutgoing(
+		crl::time now,
+		not_null<HistoryItem*> item,
+		std::vector<Animation> &animations);
+	void clearAccumulatedIncoming(
+		crl::time now,
+		std::vector<Animation> &animations);
+	void setWaitingForDownload(bool waiting);
+
+	void checkSeenRequests(crl::time now);
+	void checkSentRequests(crl::time now);
+	void checkEdition(
+		not_null<HistoryItem*> item,
+		base::flat_map<not_null<HistoryItem*>, std::vector<Animation>> &map);
+
+	const not_null<Main::Session*> _session;
+
+	base::flat_map<not_null<HistoryItem*>, std::vector<Animation>> _outgoing;
+	base::flat_map<not_null<HistoryItem*>, std::vector<Animation>> _incoming;
+	base::Timer _checkTimer;
+	rpl::event_stream<PlayRequest> _playRequests;
+	base::flat_map<
+		not_null<PeerData*>,
+		base::flat_map<QString, crl::time>> _playStarted;
+	base::flat_map<
+		not_null<PeerData*>,
+		base::flat_map<not_null<EmojiPtr>, PlaySent>> _playsSent;
+	rpl::event_stream<EmojiInteractionSeen> _seen;
+
+	bool _waitingForDownload = false;
+	rpl::lifetime _downloadCheckLifetime;
+
+	rpl::lifetime _lifetime;
+
+};
+
+} // namespace ChatHelpers