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Telegram/SourceFiles/data/data_audio_msg_id.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
+
+class DocumentData;
+
+class AudioMsgId final {
+public:
+	enum class Type {
+		Unknown,
+		Voice,
+		Song,
+		Video,
+	};
+
+	AudioMsgId();
+	AudioMsgId(
+		not_null<DocumentData*> audio,
+		FullMsgId msgId,
+		uint32 externalPlayId = 0);
+
+	[[nodiscard]] static uint32 CreateExternalPlayId();
+	[[nodiscard]] static AudioMsgId ForVideo();
+
+	[[nodiscard]] Type type() const;
+	[[nodiscard]] DocumentData *audio() const;
+	[[nodiscard]] FullMsgId contextId() const;
+	[[nodiscard]] uint32 externalPlayId() const;
+	[[nodiscard]] bool changeablePlaybackSpeed() const;
+	[[nodiscard]] explicit operator bool() const;
+
+	bool operator<(const AudioMsgId &other) const;
+	bool operator==(const AudioMsgId &other) const;
+	bool operator!=(const AudioMsgId &other) const;
+
+private:
+	void setTypeFromAudio();
+
+	DocumentData *_audio = nullptr;
+	Type _type = Type::Unknown;
+	FullMsgId _contextId;
+	uint32 _externalPlayId = 0;
+	bool _changeablePlaybackSpeed = false;
+
+};