tdesktop/Telegram/SourceFiles/media/streaming/media_streaming_loader_mtpr...

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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 "media/streaming/media_streaming_loader.h"
#include "mtproto/sender.h"
#include "data/data_file_origin.h"
class ApiWrap;
namespace Media {
namespace Streaming {
class LoaderMtproto : public Loader, public base::has_weak_ptr {
public:
LoaderMtproto(
not_null<ApiWrap*> api,
MTP::DcId dcId,
const MTPInputFileLocation &location,
int size,
Data::FileOrigin origin);
//[[nodiscard]] Storage::Cache::Key baseCacheKey() const override;
[[nodiscard]] int size() const override;
void load(int offset, int till = -1) override;
void stop() override;
// Parts will be sent from the main thread.
[[nodiscard]] rpl::producer<LoadedPart> parts() const override;
~LoaderMtproto();
private:
void cancelRequestsBefore(int offset);
void sendNext(int possibleOffset);
void requestDone(int offset, const MTPupload_File &result);
void requestFailed(int offset, const RPCError &error);
void changeCdnParams(
int offset,
MTP::DcId dcId,
const QByteArray &token,
const QByteArray &encryptionKey,
const QByteArray &encryptionIV,
const QVector<MTPFileHash> &hashes);
const not_null<ApiWrap*> _api;
const MTP::DcId _dcId = 0;
const MTPInputFileLocation _location;
const int _size = 0;
const Data::FileOrigin _origin;
int _till = -1;
MTP::Sender _sender;
base::flat_map<int, mtpRequestId> _requests;
rpl::event_stream<LoadedPart> _parts;
};
} // namespace Streaming
} // namespace Media