/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         https://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/

#define ITK_TEMPLATE_EXPLICIT_TransformIOBase
#include "itkTransformIOBase.h"
#include "itkTransformFactoryBase.h"
#include <iostream>
#include <fstream>

namespace itk
{

template <typename TParametersValueType>
TransformIOBaseTemplate<TParametersValueType>::TransformIOBaseTemplate() = default;

template <typename TParametersValueType>
TransformIOBaseTemplate<TParametersValueType>::~TransformIOBaseTemplate() = default;

template <typename TParametersValueType>
void
TransformIOBaseTemplate<TParametersValueType>::CreateTransform(TransformPointer & ptr, const std::string & ClassName)
{
  //
  // call to GetFactory has side effect of initializing the
  // TransformFactory overrides
  TransformFactoryBase * theFactory = TransformFactoryBase::GetFactory();

  // Instantiate the transform
  itkDebugMacro("About to call ObjectFactory");
  const LightObject::Pointer i = ObjectFactoryBase::CreateInstance(ClassName.c_str());
  itkDebugMacro("After call ObjectFactory");
  ptr = dynamic_cast<TransformType *>(i.GetPointer());
  if (ptr.IsNull())
  {
    std::ostringstream msg;
    msg << "Could not create an instance of \"" << ClassName << '"' << std::endl
        << "The usual cause of this error is not registering the "
        << "transform with TransformFactory" << std::endl;
    msg << "Currently registered Transforms: " << std::endl;
    const std::list<std::string> names = theFactory->GetClassOverrideWithNames();
    for (auto & name : names)
    {
      msg << "\t\"" << name << '"' << std::endl;
    }
    itkExceptionMacro(<< msg.str());
  }
  // Correct extra reference count from CreateInstance()
  ptr->UnRegister();
}

template <typename TParametersValueType>
void
TransformIOBaseTemplate<TParametersValueType>::OpenStream(std::ofstream & outputStream, bool binary)
{
  std::ios::openmode mode(std::ios::out);

  if (binary)
  {
    mode |= std::ios::binary;
  }
  if (this->m_AppendMode)
  {
    mode |= std::ios::app;
  }

  outputStream.open(m_FileName.c_str(), mode);

  if (outputStream.fail())
  {
    outputStream.close();
    itkExceptionMacro("Failed opening file" << m_FileName);
  }
}

template <typename TParametersValueType>
void
TransformIOBaseTemplate<TParametersValueType>::SetTransformList(ConstTransformListType & transformList)
{
  this->m_WriteTransformList = transformList;
}

template <typename TParametersValueType>
void
TransformIOBaseTemplate<TParametersValueType>::PrintSelf(std::ostream & os, Indent indent) const
{
  Superclass::PrintSelf(os, indent);

  os << indent << "FileName: " << m_FileName << std::endl;
  os << indent << "AppendMode: " << (m_AppendMode ? "true" : "false") << std::endl;
  if (!m_ReadTransformList.empty())
  {
    os << indent << "ReadTransformList: " << std::endl;
    auto it = m_ReadTransformList.begin();
    while (it != m_ReadTransformList.end())
    {
      (*it)->Print(os, indent.GetNextIndent());
      ++it;
    }
  }
  if (!m_WriteTransformList.empty())
  {
    os << indent << "WriteTransformList: " << std::endl;

    auto it = m_WriteTransformList.begin();
    while (it != m_WriteTransformList.end())
    {
      (*it)->Print(os, indent.GetNextIndent());
      ++it;
    }
  }
}

ITK_GCC_PRAGMA_DIAG_PUSH()
ITK_GCC_PRAGMA_DIAG(ignored "-Wattributes")

template class ITKIOTransformBase_EXPORT TransformIOBaseTemplate<double>;
template class ITKIOTransformBase_EXPORT TransformIOBaseTemplate<float>;

ITK_GCC_PRAGMA_DIAG_POP()

} // end namespace itk
