/*
 * Engine.cpp
 *
 *  Created on: Dec 19, 2016
 *      Author: wfg
 */

#include "core/Engine.h"
#include "core/Support.h"
#include "functions/adiosFunctions.h"

namespace adios
{

Engine::Engine(ADIOS &adios, const std::string engineType,
               const std::string name, const std::string accessMode,
               MPI_Comm mpiComm, const Method &method, const bool debugMode,
               const unsigned int nthreads, const std::string endMessage)
    : m_MPIComm{mpiComm}, m_EngineType{engineType}, m_Name{name},
      m_AccessMode{accessMode}, m_Method{method}, m_ADIOS{adios},
      m_DebugMode{debugMode}, m_nThreads{nthreads}, m_EndMessage(endMessage)
{
  if (m_DebugMode == true)
  {
    if (m_MPIComm == MPI_COMM_NULL)
      throw std::ios_base::failure(
          "ERROR: engine communicator is MPI_COMM_NULL,"
          " in call to ADIOS Open or Constructor\n");
  }

  MPI_Comm_rank(m_MPIComm, &m_RankMPI);
  MPI_Comm_size(m_MPIComm, &m_SizeMPI);
}

Engine::~Engine() {}

void Engine::SetCallBack(std::function<void(const void *, std::string,
                                            std::string, std::string, Dims)>
                             callback)
{
}

// should these functions throw an exception?
void Engine::Write(Variable<char> &variable, const char *values) {}
void Engine::Write(Variable<unsigned char> &variable,
                   const unsigned char *values)
{
}
void Engine::Write(Variable<short> &variable, const short *values) {}
void Engine::Write(Variable<unsigned short> &variable,
                   const unsigned short *values)
{
}
void Engine::Write(Variable<int> &variable, const int *values) {}
void Engine::Write(Variable<unsigned int> &variable, const unsigned int *values)
{
}
void Engine::Write(Variable<long int> &variable, const long int *values) {}
void Engine::Write(Variable<unsigned long int> &variable,
                   const unsigned long int *values)
{
}
void Engine::Write(Variable<long long int> &variable,
                   const long long int *values)
{
}
void Engine::Write(Variable<unsigned long long int> &variable,
                   const unsigned long long int *values)
{
}
void Engine::Write(Variable<float> &variable, const float *values) {}
void Engine::Write(Variable<double> &variable, const double *values) {}
void Engine::Write(Variable<long double> &variable, const long double *values)
{
}
void Engine::Write(Variable<std::complex<float>> &variable,
                   const std::complex<float> *values)
{
}
void Engine::Write(Variable<std::complex<double>> &variable,
                   const std::complex<double> *values)
{
}
void Engine::Write(Variable<std::complex<long double>> &variable,
                   const std::complex<long double> *values)
{
}
void Engine::Write(VariableCompound &variable, const void *values) {}

void Engine::Write(const std::string variableName, const char *values) {}
void Engine::Write(const std::string variableName, const unsigned char *values)
{
}
void Engine::Write(const std::string variableName, const short *values) {}
void Engine::Write(const std::string variableName, const unsigned short *values)
{
}
void Engine::Write(const std::string variableName, const int *values) {}
void Engine::Write(const std::string variableName, const unsigned int *values)
{
}
void Engine::Write(const std::string variableName, const long int *values) {}
void Engine::Write(const std::string variableName,
                   const unsigned long int *values)
{
}
void Engine::Write(const std::string variableName, const long long int *values)
{
}
void Engine::Write(const std::string variableName,
                   const unsigned long long int *values)
{
}
void Engine::Write(const std::string variableName, const float *values) {}
void Engine::Write(const std::string variableName, const double *values) {}
void Engine::Write(const std::string variableName, const long double *values) {}
void Engine::Write(const std::string variableName,
                   const std::complex<float> *values)
{
}
void Engine::Write(const std::string variableName,
                   const std::complex<double> *values)
{
}
void Engine::Write(const std::string variableName,
                   const std::complex<long double> *values)
{
}
void Engine::Write(const std::string variableName, const void *values) {}

void Engine::Advance(float timeout_sec) {}
void Engine::Advance(AdvanceMode mode, float timeout_sec) {}
void Engine::AdvanceAsync(
    AdvanceMode mode,
    std::function<void(std::shared_ptr<adios::Engine>)> callback)
{
}

void Engine::Close(const int transportIndex) {}

// READ
Variable<void> *Engine::InquireVariable(const std::string name,
                                        const bool readIn)
{
  return nullptr;
}
Variable<char> *Engine::InquireVariableChar(const std::string name,
                                            const bool readIn)
{
  return nullptr;
}
Variable<unsigned char> *Engine::InquireVariableUChar(const std::string name,
                                                      const bool readIn)
{
  return nullptr;
}
Variable<short> *Engine::InquireVariableShort(const std::string name,
                                              const bool readIn)
{
  return nullptr;
}
Variable<unsigned short> *Engine::InquireVariableUShort(const std::string name,
                                                        const bool readIn)
{
  return nullptr;
}
Variable<int> *Engine::InquireVariableInt(const std::string name,
                                          const bool readIn)
{
  return nullptr;
}
Variable<unsigned int> *Engine::InquireVariableUInt(const std::string name,
                                                    const bool readIn)
{
  return nullptr;
}
Variable<long int> *Engine::InquireVariableLInt(const std::string name,
                                                const bool readIn)
{
  return nullptr;
}
Variable<unsigned long int> *
Engine::InquireVariableULInt(const std::string name, const bool readIn)
{
  return nullptr;
}
Variable<long long int> *Engine::InquireVariableLLInt(const std::string name,
                                                      const bool readIn)
{
  return nullptr;
}
Variable<unsigned long long int> *
Engine::InquireVariableULLInt(const std::string name, const bool readIn)
{
  return nullptr;
}
Variable<float> *Engine::InquireVariableFloat(const std::string name,
                                              const bool readIn)
{
  return nullptr;
}
Variable<double> *Engine::InquireVariableDouble(const std::string name,
                                                const bool readIn)
{
  return nullptr;
}
Variable<long double> *Engine::InquireVariableLDouble(const std::string name,
                                                      const bool readIn)
{
  return nullptr;
}
Variable<std::complex<float>> *
Engine::InquireVariableCFloat(const std::string name, const bool readIn)
{
  return nullptr;
}
Variable<std::complex<double>> *
Engine::InquireVariableCDouble(const std::string name, const bool readIn)
{
  return nullptr;
}
Variable<std::complex<long double>> *
Engine::InquireVariableCLDouble(const std::string name, const bool readIn)
{
  return nullptr;
}
VariableCompound *Engine::InquireVariableCompound(const std::string name,
                                                  const bool readIn)
{
  return nullptr;
}

void Engine::Read(Variable<double> &variable, const double *values) {}
void Engine::ScheduleRead(Variable<double> &variable, const double *values) {}
void Engine::Release() {}

// PROTECTED
void Engine::Init() {}

void Engine::InitParameters() {}

void Engine::InitTransports() {}

void Engine::CheckParameter(
    const std::map<std::string, std::string>::const_iterator itParam,
    const std::map<std::string, std::string> &parameters,
    const std::string parameterName, const std::string hint) const
{
  if (itParam == parameters.end())
    throw std::invalid_argument("ERROR: parameter name " + parameterName +
                                " not found " + hint);
}

bool Engine::TransportNamesUniqueness() const
{
  auto lf_CheckTransportsType =
      [&](const std::set<std::string> &specificType) -> bool {
    std::set<std::string> transportNames;

    for (const auto &parameters : m_Method.m_TransportParameters)
    {
      auto itTransport = parameters.find("transport");
      if (m_DebugMode == true)
      {
        if (itTransport == parameters.end())
          throw std::invalid_argument(
              "ERROR: transport not defined in Method input to Engine " +
              m_Name);
      }

      const std::string type(itTransport->second);
      if (specificType.count(type) == 1) // file transports type
      {
        std::string name(m_Name);
        auto itName = parameters.find("name");
        if (itName != parameters.end())
          name = itName->second;

        if (transportNames.count(name) == 0)
          transportNames.insert(name);
        else
          return false;
      }
    }
    return true;
  };

  return lf_CheckTransportsType(Support::FileTransports);
}

void Engine::CheckTransportIndex(const int transportIndex)
{
  if (m_DebugMode == true)
  {
    if (transportIndex >= static_cast<int>(m_Transports.size()) ||
        transportIndex < -1)
    {
      throw std::invalid_argument(
          "ERROR: transport index " + std::to_string(transportIndex) +
          " is out of range, in call to " + m_Name + "Close \n");
    }
  }
}

} // end namespace