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Telegram/SourceFiles/mtproto/mtproto_response.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/flat_set.h"
+
+class QDebug;
+
+namespace MTP {
+
+class Error {
+public:
+	explicit Error(const MTPrpcError &error);
+	explicit Error(const mtpBuffer &reply);
+
+	enum {
+		NoError,
+		TimeoutError
+	};
+
+	[[nodiscard]] int32 code() const;
+	[[nodiscard]] const QString &type() const;
+	[[nodiscard]] const QString &description() const;
+
+	[[nodiscard]] static Error Local(
+		const QString &type,
+		const QString &description);
+	[[nodiscard]] static MTPrpcError MTPLocal(
+		const QString &type,
+		const QString &description);
+
+private:
+	int32 _code = 0;
+	QString _type, _description;
+
+};
+
+inline bool IsFloodError(const QString &type) {
+	return type.startsWith(u"FLOOD_WAIT_"_q)
+		|| type.startsWith(u"FLOOD_PREMIUM_WAIT_"_q);
+}
+
+inline bool IsFloodError(const Error &error) {
+	return IsFloodError(error.type());
+}
+
+inline bool IsTemporaryError(const Error &error) {
+	return error.code() < 0 || error.code() >= 500 || IsFloodError(error);
+}
+
+inline bool IsDefaultHandledError(const Error &error) {
+	return IsTemporaryError(error);
+}
+
+struct Response {
+	mtpBuffer reply;
+	mtpMsgId outerMsgId = 0;
+	mtpRequestId requestId = 0;
+};
+
+using DoneHandler = FnMut<bool(const Response&)>;
+using FailHandler = Fn<bool(const Error&, const Response&)>;
+
+struct ResponseHandler {
+	DoneHandler done;
+	FailHandler fail;
+};
+
+[[nodiscard]] QDebug operator<<(QDebug debug, const Error &error);
+
+} // namespace MTP