Method filePartDone

Telegram/SourceFiles/export/export_api_wrap.cpp:2803–2861

}

void ApiWrap::filePartDone(int64 offset, const MTPupload_File &result) {
	Expects(_fileProcess != nullptr);
	Expects(!_fileProcess->requests.empty());

	if (result.type() == mtpc_upload_fileCdnRedirect) {
		error("Cdn redirect is not supported.");
		return;
	}
	const auto &data = result.c_upload_file();
	if (data.vbytes().v.isEmpty()) {
		if (_fileProcess->size > 0) {
			error("Empty bytes received in file part.");
			return;
		}
		const auto result = _fileProcess->file.writeBlock({});
		if (!result) {
			ioError(result);
			return;
		}
	} else {
		using Request = FileProcess::Request;
		auto &requests = _fileProcess->requests;
		const auto i = ranges::find(
			requests,
			offset,
			[](const Request &request) { return request.offset; });
		Assert(i != end(requests));

		i->bytes = data.vbytes().v;

		auto &file = _fileProcess->file;
		while (!requests.empty() && !requests.front().bytes.isEmpty()) {
			const auto &bytes = requests.front().bytes;
			if (const auto result = file.writeBlock(bytes); !result) {
				ioError(result);
				return;
			}
			requests.pop_front();
		}

		if (_fileProcess->progress) {
			_fileProcess->progress(FileProgress{
				file.size(),
				_fileProcess->size });
		}

		if (!requests.empty()
			|| !_fileProcess->size
			|| _fileProcess->size > _fileProcess->offset) {
			loadFilePart();
			return;
		}
	}

	auto process = base::take(_fileProcess);
	const auto relativePath = process->relativePath;
	_fileCache->save(process->location, relativePath);
	process->done(process->relativePath);