///////////////////////////////////////////////////////////////////////////////
//
// File: Stimulus.cpp
//
// For more information, please see: http://www.nektar.info
//
// The MIT License
//
// Copyright (c) 2006 Division of Applied Mathematics, Brown University (USA),
// Department of Aeronautics, Imperial College London (UK), and Scientific
// Computing and Imaging Institute, University of Utah (USA).
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
// Description: Stimulus base class.
//
///////////////////////////////////////////////////////////////////////////////

#include <LibUtilities/BasicUtils/VmathArray.hpp>
#include <tinyxml.h>

#include <CardiacEPSolver/Stimuli/Stimulus.h>

using namespace std;

namespace Nektar
{
StimulusFactory &GetStimulusFactory()
{
    static StimulusFactory instance;
    return instance;
}

/**
 * @class Stimulus
 *
 * The Stimulus class and derived classes implement a range of stimuli.
 * The stimulus contains input stimuli that can be applied throughout the
 * domain, on specified regions determined by the derived classes of
 * Stimulus, at specified frequencies determined by the derived classes of
 * Protocol.
 *
 */

/**
 * Stimulus base class constructor.
 */
Stimulus::Stimulus(const LibUtilities::SessionReaderSharedPtr &pSession,
                   const MultiRegions::ExpListSharedPtr &pField,
                   const TiXmlElement *pXml)
{
    m_session = pSession;
    m_field   = pField;
    m_nq      = pField->GetTotPoints();

    const TiXmlElement *vProtocol = pXml->FirstChildElement("PROTOCOL");
    string vTypeP                 = vProtocol->Attribute("TYPE");

    m_Protocol =
        GetProtocolFactory().CreateInstance(vTypeP, pSession, vProtocol);
}

/**
 * Initialise the stimulus. Allocate workspace and variable storage.
 */
void Stimulus::Initialise()
{
}

/**
 *
 */
vector<StimulusSharedPtr> Stimulus::LoadStimuli(
    const LibUtilities::SessionReaderSharedPtr &pSession,
    const MultiRegions::ExpListSharedPtr &pField)
{
    vector<StimulusSharedPtr> vStimList;

    TiXmlElement *vStimuli = pSession->GetElement("Nektar/Stimuli");
    if (vStimuli)
    {
        TiXmlElement *vStimulus = vStimuli->FirstChildElement("STIMULUS");
        while (vStimulus)
        {
            string vType = vStimulus->Attribute("TYPE");

            vStimList.push_back(GetStimulusFactory().CreateInstance(
                vType, pSession, pField, vStimulus));
            vStimulus = vStimulus->NextSiblingElement("STIMULUS");
        }
    }
    return vStimList;
}
} // namespace Nektar
