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#pragma once

#include <pcl/common/random.h>


namespace pcl
{

namespace common
{


template <typename T>
UniformGenerator<T>::UniformGenerator(T min, T max, std::uint32_t seed)
  : parameters_ ({min, max, seed})
  , distribution_ (min, max)
{
  if(parameters_.seed != static_cast<std::uint32_t> (-1))
    rng_.seed (seed);
}


template <typename T>
UniformGenerator<T>::UniformGenerator(const Parameters& parameters)
  : parameters_ (parameters)
  , distribution_ (parameters_.min, parameters_.max)
{
  if(parameters_.seed != static_cast<std::uint32_t> (-1))
    rng_.seed (parameters_.seed);
}


template <typename T> void
UniformGenerator<T>::setSeed (std::uint32_t seed)
{
  if (seed != static_cast<std::uint32_t> (-1))
  {
    parameters_.seed = seed;
    rng_.seed(parameters_.seed);
  }
}


template <typename T> void
UniformGenerator<T>::setParameters (T min, T max, std::uint32_t seed)
{
  parameters_.min = min;
  parameters_.max = max;
  parameters_.seed = seed;
  typename DistributionType::param_type params (parameters_.min, parameters_.max);
  distribution_.param (params);
  distribution_.reset ();
  if (seed != static_cast<std::uint32_t> (-1))
  {
    parameters_.seed = seed;
    rng_.seed (parameters_.seed);
  }
}


template <typename T> void
UniformGenerator<T>::setParameters (const Parameters& parameters)
{
  parameters_ = parameters;
  typename DistributionType::param_type params (parameters_.min, parameters_.max);
  distribution_.param (params);
  distribution_.reset ();
  if (parameters_.seed != static_cast<std::uint32_t> (-1))
    rng_.seed (parameters_.seed);
}


template <typename T>
NormalGenerator<T>::NormalGenerator(T mean, T sigma, std::uint32_t seed)
  : parameters_ ({mean, sigma, seed})
  , distribution_ (mean, sigma)
{
  if(parameters_.seed != static_cast<std::uint32_t> (-1))
    rng_.seed (seed);
}


template <typename T>
NormalGenerator<T>::NormalGenerator(const Parameters& parameters)
  : parameters_ (parameters)
  , distribution_ (parameters_.mean, parameters_.sigma)
{
  if(parameters_.seed != static_cast<std::uint32_t> (-1))
    rng_.seed (parameters_.seed);
}


template <typename T> void
NormalGenerator<T>::setSeed (std::uint32_t seed)
{
  if (seed != static_cast<std::uint32_t> (-1))
  {
    parameters_.seed = seed;
    rng_.seed(seed);
  }
}


template <typename T> void
NormalGenerator<T>::setParameters (T mean, T sigma, std::uint32_t seed)
{
  parameters_.mean = mean;
  parameters_.sigma = sigma;
  parameters_.seed = seed;
  typename DistributionType::param_type params (parameters_.mean, parameters_.sigma);
  distribution_.param (params);
  distribution_.reset ();
  if (seed != static_cast<std::uint32_t> (-1))
    rng_.seed (parameters_.seed);
}


template <typename T> void
NormalGenerator<T>::setParameters (const Parameters& parameters)
{
  parameters_ = parameters;
  typename DistributionType::param_type params (parameters_.mean, parameters_.sigma);
  distribution_.param (params);
  distribution_.reset ();
  if (parameters_.seed != static_cast<std::uint32_t> (-1))
    rng_.seed (parameters_.seed);
}

} // namespace common
} // namespace pcl