/**
 * Orthanc - A Lightweight, RESTful DICOM Store
 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
 * Department, University Hospital of Liege, Belgium
 * Copyright (C) 2017-2023 Osimis S.A., Belgium
 * Copyright (C) 2024-2026 Orthanc Team SRL, Belgium
 * Copyright (C) 2021-2026 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
 *
 * 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/>.
 **/


#include "../../Framework/PrecompiledHeadersWSI.h"
#include "UserId.h"

#include <OrthancException.h>
#include <SerializationToolbox.h>
#include <Toolbox.h>


static const char* const KEY_TYPE = "type";
static const char* const KEY_NAME = "name";


namespace OrthancWSI
{
  void UserId::Setup(Type type,
                     const std::string& name)
  {
    type_ = type;
    name_ = name;

    switch (type_)
    {
      case Type_Invalid:
      case Type_Root:
        if (!name.empty())
        {
          throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
        }
        break;

      case Type_Standard:
        if (name.empty())
        {
          throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
        }
        break;

      default:
        throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
    }
  }


  UserId::UserId(const Json::Value& serialized)
  {
    Setup(static_cast<Type>(Orthanc::SerializationToolbox::ReadInteger(serialized, KEY_TYPE)),
          Orthanc::SerializationToolbox::ReadString(serialized, KEY_NAME));
  }


  bool UserId::Equals(const UserId& other) const
  {
    if (type_ != other.type_)
    {
      return false;
    }
    else if (type_ == Type_Standard)
    {
      return name_ == other.name_;
    }
    else
    {
      return true;
    }
  }


  bool UserId::operator<(const UserId& other) const
  {
    if (type_ < other.type_)
    {
      return true;
    }
    else if (type_ > other.type_)
    {
      return false;
    }
    else
    {
      return name_ < other.name_;
    }
  }


  std::string UserId::GetKey() const
  {
    switch (type_)
    {
      case Type_Root:
        return "root";

      case Type_Standard:
      {
        // The pipe character "|" is not part of Base64, so we can safely use it to separate components
        std::string s;
        Orthanc::Toolbox::EncodeBase64(s, name_);
        return "user_" + s;
      }

      case Type_Invalid:
        throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);

      default:
        throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
    }
  }


  void UserId::Serialize(Json::Value& target) const
  {
    if (type_ == Type_Invalid)
    {
      throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
    }
    else
    {
      target = Json::objectValue;
      target[KEY_TYPE] = static_cast<int>(type_);
      target[KEY_NAME] = name_;
    }
  }
}