/**
 * @file bindings/markdown/get_printable_param_value_impl.hpp
 * @author Ryan Curtin
 *
 * Return the parameter value that the user would specify on the command line
 * depending on the type of the option.  Basically this adds ".csv" to types
 * that need to be loaded.
 *
 * mlpack is free software; you may redistribute it and/or modify it under the
 * terms of the 3-clause BSD license.  You should have received a copy of the
 * 3-clause BSD license along with mlpack.  If not, see
 * http://www.opensource.org/licenses/BSD-3-Clause for more information.
 */
#ifndef MLPACK_BINDINGS_MARKDOWN_GET_PRINTABLE_PARAM_VALUE_IMPL_HPP
#define MLPACK_BINDINGS_MARKDOWN_GET_PRINTABLE_PARAM_VALUE_IMPL_HPP

#include <mlpack/prereqs.hpp>
#include <mlpack/core/util/param_data.hpp>

namespace mlpack {
namespace bindings {
namespace markdown {

/**
 * Get the parameter name for a type that has no special handling.
 */
template<typename T>
std::string GetPrintableParamValue(
    util::ParamData& /* data */,
    const std::string& input,
    const typename std::enable_if<!arma::is_arma_type<T>::value>::type*,
    const typename std::enable_if<!data::HasSerialize<T>::value>::type*,
    const typename std::enable_if<!std::is_same<T,
        std::tuple<data::DatasetInfo, arma::mat>>::value>::type*)
{
  return input;
}

/**
 * Get the parameter name for a matrix type (where the user has to pass the file
 * that holds the matrix).
 */
template<typename T>
std::string GetPrintableParamValue(
    util::ParamData& /* data */,
    const std::string& input,
    const typename std::enable_if<arma::is_arma_type<T>::value>::type*)
{
  return input + ".csv";
}

/**
 * Get the parameter name for a serializable model type (where the user has to
 * pass the file that holds the matrix).
 */
template<typename T>
std::string GetPrintableParamValue(
    util::ParamData& /* data */,
    const std::string& input,
    const typename std::enable_if<!arma::is_arma_type<T>::value>::type*,
    const typename std::enable_if<data::HasSerialize<T>::value>::type*)
{
  return input + ".bin";
}

/**
 * Get the parameter name for a mapped matrix type (where the user has to pass
 * the file that holds the matrix).
 */
template<typename T>
std::string GetPrintableParamValue(
    util::ParamData& /* data */,
    const std::string& input,
    const typename std::enable_if<std::is_same<T,
        std::tuple<data::DatasetInfo, arma::mat>>::value>::type*)
{
  return input + ".arff";
}

} // namespace markdown
} // namespace bindings
} // namespace mlpack

#endif
