/*
 * Copyright (c) Contributors to the Open 3D Engine Project.
 * For complete copyright and license terms please see the LICENSE at the root of this distribution.
 *
 * SPDX-License-Identifier: Apache-2.0 OR MIT
 *
 */


#include <AzCore/Serialization/SerializeContext.h>
#include "ScriptVarNode.h"
#include "AnimTrack.h"
#include "Maestro/Types/AnimNodeType.h"
#include "Maestro/Types/AnimValueType.h"
#include "Maestro/Types/AnimParamType.h"

#include <ISystem.h>

//////////////////////////////////////////////////////////////////////////
CAnimScriptVarNode::CAnimScriptVarNode(const int id)
    : CAnimNode(id, AnimNodeType::ScriptVar)
{
    SetFlags(GetFlags() | eAnimNodeFlags_CanChangeName);
    m_value = -1e-20f;
}

//////////////////////////////////////////////////////////////////////////
CAnimScriptVarNode::CAnimScriptVarNode()
    : CAnimScriptVarNode(0)
{

}

void CAnimScriptVarNode::OnReset()
{
    m_value = -1e-20f;
}

void CAnimScriptVarNode::OnResume()
{
    OnReset();
}

//////////////////////////////////////////////////////////////////////////
void CAnimScriptVarNode::CreateDefaultTracks()
{
    CreateTrack(AnimParamType::Float);
};

//////////////////////////////////////////////////////////////////////////
unsigned int CAnimScriptVarNode::GetParamCount() const
{
    return 1;
}

//////////////////////////////////////////////////////////////////////////
CAnimParamType CAnimScriptVarNode::GetParamType(unsigned int nIndex) const
{
    if (nIndex == 0)
    {
        return AnimParamType::Float;
    }

    return AnimParamType::Invalid;
}

//////////////////////////////////////////////////////////////////////////
bool CAnimScriptVarNode::GetParamInfoFromType(const CAnimParamType& paramId, SParamInfo& info) const
{
    if (paramId.GetType() == AnimParamType::Float)
    {
        info.flags = IAnimNode::ESupportedParamFlags(0);
        info.name = "Value";
        info.paramType = AnimParamType::Float;
        info.valueType = AnimValueType::Float;
        return true;
    }
    return false;
}


//////////////////////////////////////////////////////////////////////////
void CAnimScriptVarNode::Animate(SAnimContext& ec)
{
    float value = m_value;

    IAnimTrack* pValueTrack = GetTrackForParameter(AnimParamType::Float);

    if (pValueTrack)
    {
        if (pValueTrack->GetFlags() & IAnimTrack::eAnimTrackFlags_Disabled)
        {
            return;
        }

        pValueTrack->GetValue(ec.time, value);
    }

    if (value != m_value)
    {
        m_value = value;
    }
}

void CAnimScriptVarNode::Reflect(AZ::ReflectContext* context)
{
    if (auto serializeContext = azrtti_cast<AZ::SerializeContext*>(context))
    {
        serializeContext->Class<CAnimScriptVarNode, CAnimNode>()
            ->Version(1);
    }
}