#include "ChannelNode.h"

#include "Singleton/MixerList.h"
#include "Mixer/MixerTrack.h"

FChannelNode::FChannelNodeMulticastDelegate FChannelNode::OnChannelNodeDestroyed;
FNullChannelNode FNullChannelNode::Instance;

FMixerChannelNode::FMixerChannelNode(FChannelInterface* InOwner, FMixerTrack* InTrack, int32 InNodeIndex) : FChannelNode(InOwner, EChannelNodeType::MixerNode), Track(InTrack), NodeIndex(InNodeIndex)
{
	const TArray<float*>& BufferHeaderArray = Track->Buffer.GetHeaderArray();

	ChannelHeaders.Add(BufferHeaderArray[InNodeIndex * 2]);
	ChannelHeaders.Add(BufferHeaderArray[InNodeIndex * 2 + 1]);
}

FString FMixerChannelNode::GetName()
{
	return Track->GetName() + FString::FromInt(NodeIndex);
}

const TArray<float*>& FMixerChannelNode::GetChannelHeaders()
{
	return ChannelHeaders;
}

const TArray<float*>& FNullChannelNode::GetChannelHeaders()
{
	return FMixerList::Get().ZeroTrack->Buffer.GetHeaderArray();
}