// ©2023 Batty Bovine Productions, LLC. All Rights Reserved.

#include "EdComboActionGraphEdge.h"

#include "EdComboActionGraphNode.h"
#include "Nodes/ComboActionGraphEdge.h"


void UEdComboActionGraphEdge::SetEdge(UComboActionGraphEdge *Edge)
{
	this->ComboActionGraphEdge = Edge;
}

void UEdComboActionGraphEdge::AllocateDefaultPins()
{
	UEdGraphPin* Inputs = this->CreatePin(EGPD_Input, TEXT("Edge"), FName(), TEXT("In"));
	Inputs->bHidden = true;
	UEdGraphPin* Outputs = this->CreatePin(EGPD_Output, TEXT("Edge"), FName(), TEXT("Out"));
	Outputs->bHidden = true;
}

FText UEdComboActionGraphEdge::GetNodeTitle(ENodeTitleType::Type TitleType) const
{
	return Super::GetNodeTitle(TitleType);
}

void UEdComboActionGraphEdge::PinConnectionListChanged(UEdGraphPin *Pin)
{
	if (Pin->LinkedTo.Num() == 0)
	{
		// Commit suicide; transitions must always have an input and output connection
		Modify();

		// Our parent graph will have our graph in SubGraphs so needs to be modified to record that.
		if (UEdGraph *ParentGraph = GetGraph())
		{
			ParentGraph->Modify();
		}

		DestroyNode();
	}
}

void UEdComboActionGraphEdge::PrepareForCopying()
{
	this->ComboActionGraphEdge->Rename(nullptr, this, REN_DontCreateRedirectors | REN_DoNotDirty);
}

void UEdComboActionGraphEdge::CreateConnections(UEdComboActionGraphNode *Start, UEdComboActionGraphNode *End)
{
	Pins[0]->Modify();
	Pins[0]->LinkedTo.Empty();

	Start->GetOutputPin()->Modify();
	Pins[0]->MakeLinkTo(Start->GetOutputPin());

	// This to next
	Pins[1]->Modify();
	Pins[1]->LinkedTo.Empty();

	End->GetInputPin()->Modify();
	Pins[1]->MakeLinkTo(End->GetInputPin());
}

UEdComboActionGraphNode *UEdComboActionGraphEdge::GetStartNode()
{
	if (Pins[0]->LinkedTo.Num() > 0)
	{
		return Cast<UEdComboActionGraphNode>(Pins[0]->LinkedTo[0]->GetOwningNode());
	}
	
	return nullptr;
}

UEdComboActionGraphNode *UEdComboActionGraphEdge::GetEndNode()
{
	if (Pins[1]->LinkedTo.Num() > 0)
	{
		return Cast<UEdComboActionGraphNode>(Pins[1]->LinkedTo[0]->GetOwningNode());
	}

	return nullptr;
}