/*
 * Distributed under the OSI-approved Apache License, Version 2.0.  See
 * accompanying file Copyright.txt for details.
 *
 * Transport.cpp
 *
 *  Created on: Dec 5, 2016
 *      Author: wfg
 */

#include "Transport.h"

#include "adios2/ADIOSMPI.h"
#include "adios2/helper/adiosFunctions.h" //CreateDirectory

namespace adios2
{

Transport::Transport(const std::string type, const std::string library,
                     MPI_Comm mpiComm, const bool debugMode)
: m_Type(type), m_Library(library), m_MPIComm(mpiComm), m_DebugMode(debugMode)
{
    MPI_Comm_rank(m_MPIComm, &m_RankMPI);
    MPI_Comm_size(m_MPIComm, &m_SizeMPI);
}

void Transport::IWrite(const char *buffer, size_t size, Status &status,
                       size_t start)
{
    throw std::invalid_argument("ERROR: this class doesn't implement IWrite\n");
}

void Transport::IRead(char *buffer, size_t size, Status &status, size_t start)
{
    throw std::invalid_argument("ERROR: this class doesn't implement IRead\n");
}

void Transport::InitProfiler(const Mode openMode, const TimeUnit timeUnit)
{
    m_Profiler.IsActive = true;

    m_Profiler.Timers.emplace(std::make_pair(
        "open", profiling::Timer("open", TimeUnit::Microseconds, m_DebugMode)));

    if (openMode == Mode::Write)
    {
        m_Profiler.Timers.emplace(
            "write", profiling::Timer("write", timeUnit, m_DebugMode));

        m_Profiler.Bytes.emplace("write", 0);
    }
    else if (openMode == Mode::Append)
    {
        m_Profiler.Timers.emplace(
            "append", profiling::Timer("append", timeUnit, m_DebugMode));
        m_Profiler.Bytes.emplace("append", 0);
    }
    else if (openMode == Mode::Read)
    {
        m_Profiler.Timers.emplace(
            "read", profiling::Timer("read", timeUnit, m_DebugMode));
        m_Profiler.Bytes.emplace("read", 0);
    }

    m_Profiler.Timers.emplace(
        "close",
        profiling::Timer("close", TimeUnit::Microseconds, m_DebugMode));
}

void Transport::SetBuffer(char * /*buffer*/, size_t /*size*/)
{
    if (m_DebugMode)
    {
        std::invalid_argument("ERROR: " + m_Name + " transport type " + m_Type +
                              " using library " + m_Library +
                              " doesn't implement the SetBuffer function\n");
    }
}

void Transport::Flush()
{
    if (m_DebugMode)
    {
        std::invalid_argument("ERROR: " + m_Name + " transport type " + m_Type +
                              " using library " + m_Library +
                              " doesn't implement the Flush function\n");
    }
}

size_t Transport::GetSize() { return 0; }

void Transport::ProfilerStart(const std::string process) noexcept
{
    if (m_Profiler.IsActive)
    {
        m_Profiler.Timers.at(process).Resume();
    }
}

void Transport::ProfilerStop(const std::string process) noexcept
{
    if (m_Profiler.IsActive)
    {
        m_Profiler.Timers.at(process).Pause();
    }
}

void Transport::CheckName() const
{
    if (m_DebugMode && m_Name.empty())
    {
        throw std::invalid_argument("ERROR: name can't be empty for " +
                                    m_Library + " transport \n");
    }
}

void Transport::MkDir(const std::string &fileName)
{
    const auto lastPathSeparator(fileName.find_last_of(PathSeparator));
    if (lastPathSeparator == std::string::npos)
    {
        return;
    }

    const std::string path(fileName.substr(0, lastPathSeparator));
    CreateDirectory(path);
}

} // end namespace adios2