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Telegram/SourceFiles/mtproto/details/mtproto_bound_key_creator.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/details/mtproto_dc_key_creator.h"
+#include "mtproto/details/mtproto_dc_key_binder.h"
+
+namespace MTP::details {
+
+class SerializedRequest;
+
+class BoundKeyCreator final {
+public:
+	struct Delegate {
+		Fn<void(base::expected<DcKeyResult, DcKeyError>)> unboundReady;
+		Fn<void(uint64)> sentSome;
+		Fn<void()> receivedSome;
+	};
+
+	BoundKeyCreator(DcKeyRequest request, Delegate delegate);
+
+	void start(
+		DcId dcId,
+		int16 protocolDcId,
+		not_null<AbstractConnection*> connection,
+		not_null<DcOptions*> dcOptions);
+	void stop();
+
+	void bind(AuthKeyPtr &&persistentKey);
+	void restartBinder();
+	[[nodiscard]] bool readyToBind() const;
+	[[nodiscard]] SerializedRequest prepareBindRequest(
+		const AuthKeyPtr &temporaryKey,
+		uint64 sessionId);
+	[[nodiscard]] DcKeyBindState handleBindResponse(
+		const mtpBuffer &response);
+	[[nodiscard]] AuthKeyPtr bindPersistentKey() const;
+
+private:
+	const DcKeyRequest _request;
+	Delegate _delegate;
+
+	std::optional<DcKeyCreator> _creator;
+	std::optional<DcKeyBinder> _binder;
+
+};
+
+
+[[nodiscard]] bool IsDestroyedTemporaryKeyError(const mtpBuffer &buffer);
+
+} // namespace MTP::details