/**
 * Orthanc - A Lightweight, RESTful DICOM Store
 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
 * Department, University Hospital of Liege, Belgium
 * Copyright (C) 2017-2021 Osimis S.A., Belgium
 * Copyright (C) 2021-2021 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
 *
 * This program is free software: you can redistribute it and/or
 * modify it under the terms of the GNU Lesser 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program. If not, see
 * <http://www.gnu.org/licenses/>.
 **/


#pragma once

#include "RemoteModalityParameters.h"

#include <json/value.h>

class OFCondition;  // From DCMTK

namespace Orthanc
{
  class ORTHANC_PUBLIC DicomAssociationParameters
  {
  private:
    std::string               localAet_;
    RemoteModalityParameters  remote_;
    uint32_t                  timeout_;
    std::string               ownPrivateKeyPath_;
    std::string               ownCertificatePath_;
    std::string               trustedCertificatesPath_;
    unsigned int              maximumPduLength_;
    bool                      remoteCertificateRequired_;  // New in 1.9.3, for DICOM TLS

    static void CheckHost(const std::string& host);

    void SetDefaultParameters();
    
    void CheckDicomTlsConfiguration() const;

  public:
    DicomAssociationParameters();
    
    DicomAssociationParameters(const std::string& localAet,
                               const RemoteModalityParameters& remote);
    
    const std::string& GetLocalApplicationEntityTitle() const;

    void SetLocalApplicationEntityTitle(const std::string& aet);

    const RemoteModalityParameters& GetRemoteModality() const;

    void SetRemoteModality(const RemoteModalityParameters& parameters);
    
    void SetRemoteApplicationEntityTitle(const std::string& aet);

    void SetRemoteHost(const std::string& host);

    void SetRemotePort(uint16_t port);

    void SetRemoteManufacturer(ModalityManufacturer manufacturer);

    bool IsEqual(const DicomAssociationParameters& other) const;

    // Setting it to "0" disables the timeout (infinite wait)
    void SetTimeout(uint32_t seconds);

    uint32_t GetTimeout() const;

    bool HasTimeout() const;

    // This corresponds to the "--enable-tls" or "+tls" argument of
    // the command-line tools of DCMTK. Both files must be in the PEM format.
    // The private key file must not be password-protected.
    void SetOwnCertificatePath(const std::string& privateKeyPath,
                               const std::string& certificatePath);

    // This corresponds to the "--add-cert-file" or "+cf" argument of
    // the command-line tools of DCMTK. The file must contain a list
    // of PEM certificates.
    void SetTrustedCertificatesPath(const std::string& path);

    const std::string& GetOwnPrivateKeyPath() const;
    
    const std::string& GetOwnCertificatePath() const;

    const std::string& GetTrustedCertificatesPath() const;

    unsigned int GetMaximumPduLength() const;

    void SetMaximumPduLength(unsigned int pdu);
    
    void SetRemoteCertificateRequired(bool required);

    bool IsRemoteCertificateRequired() const;

    void SerializeJob(Json::Value& target) const;

    static DicomAssociationParameters UnserializeJob(const Json::Value& serialized);
    
    static void SetDefaultTimeout(uint32_t seconds);

    static uint32_t GetDefaultTimeout();

    static void SetDefaultOwnCertificatePath(const std::string& privateKeyPath,
                                             const std::string& certificatePath);

    static void SetDefaultTrustedCertificatesPath(const std::string& path);

    static void CheckMaximumPduLength(unsigned int pdu);

    static void SetDefaultMaximumPduLength(unsigned int pdu);

    static unsigned int GetDefaultMaximumPduLength();

    static void SetDefaultRemoteCertificateRequired(bool required);

    static bool GetDefaultRemoteCertificateRequired();
  };
}