/*
    Flexisip, a flexible SIP proxy server with media capabilities.
    Copyright (C) 2010-2025 Belledonne Communications SARL, All rights reserved.

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as
    published by the Free Software Foundation, either version 3 of the
    License, or (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with this program. If not, see <http://www.gnu.org/licenses/>.
*/

#pragma once

#include <sstream>
#include <string>
#include <vector>

#include <nghttp2/nghttp2.h>

namespace flexisip {

/**
 * An utility class to provide a way to transform a simple request body (std::vector<char> or std::string) to a
 * nghttp2_data_provider needed by nghttp2 to send a request.
 */
class NgDataProvider {
public:
	NgDataProvider(const std::vector<char>& data) noexcept;
	NgDataProvider(const std::string& data) noexcept;

	const nghttp2_data_provider* getCStruct() const noexcept {
		return &mDataProv;
	}

private:
	ssize_t read(uint8_t* buf, size_t length, uint32_t* data_flags) noexcept;

	nghttp2_data_provider mDataProv{{0}};
	std::stringstream mData{};
};

} // namespace flexisip