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Telegram/SourceFiles/mtproto/details/mtproto_dc_key_binder.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 "mtproto/core_types.h"
+#include "mtproto/mtproto_auth_key.h"
+
+namespace MTP {
+class Instance;
+} // namespace MTP
+
+namespace MTP::details {
+
+class SerializedRequest;
+
+enum class DcKeyBindState {
+	Success,
+	Failed,
+	DefinitelyDestroyed,
+};
+
+class DcKeyBinder final {
+public:
+	explicit DcKeyBinder(AuthKeyPtr &&persistentKey);
+
+	[[nodiscard]] SerializedRequest prepareRequest(
+		const AuthKeyPtr &temporaryKey,
+		uint64 sessionId);
+	[[nodiscard]] DcKeyBindState handleResponse(const mtpBuffer &response);
+	[[nodiscard]] AuthKeyPtr persistentKey() const;
+
+private:
+	AuthKeyPtr _persistentKey;
+
+};
+
+} // namespace MTP::details