/**

 * Relational pipes

 * Copyright © 2022 František Kučera (Frantovo.cz, GlobalCode.info)

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, version 3 of the License.

 *

 * 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 General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program. If not, see <http://www.gnu.org/licenses/>.

 */

#include <microhttpd.h>

#include <stdexcept>

#include "HTTPServer.h"

namespace relpipe {

namespace tr {

namespace httpd {

class HTTPServer::HTTPServerImpl {

public:

	MHD_Daemon* mhd = nullptr;

};

	HTTPServer::HTTPServerImpl* impl = new HTTPServer::HTTPServerImpl();

	void* acceptCallbackData = nullptr;

	MHD_AcceptPolicyCallback acceptCallback = [](void* cls, const struct sockaddr* addr, socklen_t addrlen) {

		return MHD_YES;

	};

	void* accessCallbackData = nullptr;

	MHD_AccessHandlerCallback accessCallback = [](void* cls, struct MHD_Connection* connection, const char* url, const char* method, const char* version, const char* upload_data, size_t* upload_data_size, void** con_cls) {

		static const char html[] = "<p>Hello, <b>relational</b> world!</p>";

		struct MHD_Response* response = MHD_create_response_from_buffer(sizeof (html), (void*) html, MHD_RESPMEM_PERSISTENT);

		MHD_queue_response(connection, 200, response);

		MHD_destroy_response(response);

		return MHD_YES;

	};

	impl->mhd = MHD_start_daemon(MHD_USE_INTERNAL_POLLING_THREAD,

			acceptCallback, acceptCallbackData,

			accessCallback, accessCallbackData,

			MHD_OPTION_THREAD_POOL_SIZE, 10,

			MHD_OPTION_CONNECTION_TIMEOUT, 60,

			MHD_OPTION_END);

	if (impl->mhd) return new HTTPServer(impl);

	else throw std::logic_error("Unable to start MHD.");

}

HTTPServer::~HTTPServer() {

	MHD_stop_daemon(impl->mhd);

	delete impl;

}

}

}

}