/**
 * Orthanc - A Lightweight, RESTful DICOM Store
 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
 * Department, University Hospital of Liege, Belgium
 * Copyright (C) 2017-2020 Osimis S.A., Belgium
 *
 * 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, either version 3 of the
 * License, or (at your option) any later version.
 *
 * In addition, as a special exception, the copyright holders of this
 * program give permission to link the code of its release with the
 * OpenSSL project's "OpenSSL" library (or with modified versions of it
 * that use the same license as the "OpenSSL" library), and distribute
 * the linked executables. You must obey the GNU General Public License
 * in all respects for all of the code used other than "OpenSSL". If you
 * modify file(s) with this exception, you may extend this exception to
 * your version of the file(s), but you are not obligated to do so. If
 * you do not wish to do so, delete this exception statement from your
 * version. If you delete this exception statement from all source files
 * in the program, then also delete it here.
 * 
 * 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/>.
 **/


#pragma once

#include "../Compatibility.h"
#include "../Toolbox.h"
#include "HttpOutput.h"

#include <map>
#include <set>
#include <vector>
#include <string>
#include <memory>

namespace Orthanc
{
  class IHttpHandler : public boost::noncopyable
  {
  public:
    typedef std::map<std::string, std::string>                  Arguments;
    typedef std::vector< std::pair<std::string, std::string> >  GetArguments;


    class IChunkedRequestReader : public boost::noncopyable
    {
    public:
      virtual ~IChunkedRequestReader()
      {
      }

      virtual void AddBodyChunk(const void* data,
                                size_t size) = 0;

      virtual void Execute(HttpOutput& output) = 0;
    };


    virtual ~IHttpHandler()
    {
    }

    /**
     * This function allows to deal with chunked transfers (new in
     * Orthanc 1.5.7). It is only called if "method" is POST or PUT.
     **/
    virtual bool CreateChunkedRequestReader(std::unique_ptr<IChunkedRequestReader>& target,
                                            RequestOrigin origin,
                                            const char* remoteIp,
                                            const char* username,
                                            HttpMethod method,
                                            const UriComponents& uri,
                                            const Arguments& headers) = 0;

    virtual bool Handle(HttpOutput& output,
                        RequestOrigin origin,
                        const char* remoteIp,
                        const char* username,
                        HttpMethod method,
                        const UriComponents& uri,
                        const Arguments& headers,
                        const GetArguments& getArguments,
                        const void* bodyData,
                        size_t bodySize) = 0;
  };
}