#pragma once

#include "CoreMinimal.h"
#include "WingServer.h"
#include "WingHandler.h"
#include "WingFetcher.h"
#include "WingUtils.h"
#include "Engine/Blueprint.h"
#include "Kismet2/KismetEditorUtilities.h"
#include "Blueprint_Compile.generated.h"


// ---------------------------------------------------------------------------
// ---------------------------------------------------------------------------
// ---------------------------------------------------------------------------

UCLASS()
class UWing_Blueprint_Compile : public UObject, public IWingHandler
{
	GENERATED_BODY()

public:
	UPROPERTY(meta=(Optional, Description="Path of the blueprint."))
	FString Blueprint;

	virtual FString GetDescription() const override
	{
		return TEXT("Compile a blueprint. ");
	}

	virtual void Handle() override
	{
		WingFetcher F;
		UBlueprint *BP = F.Walk(Blueprint).Cast<UBlueprint>();

		EBlueprintCompileOptions CompileOpts =
		EBlueprintCompileOptions::SkipSave |
		EBlueprintCompileOptions::SkipGarbageCollection |
		EBlueprintCompileOptions::SkipFiBSearchMetaUpdate;

		FKismetEditorUtilities::CompileBlueprint(BP, CompileOpts, nullptr);

		// Collect compiler messages from nodes
		for (UEdGraphNode* Node : WingUtils::AllNodes(BP))
		{
			if (!Node->bHasCompilerMessage) continue;
			UWingServer::Printf(TEXT("%s %s: %s\n"),
				*WingUtils::FormatName(Node->GetGraph()),
				*WingUtils::FormatName(Node),
				*Node->ErrorMsg);
		}
		UWingServer::Printf(TEXT("Compilation Done.\n"));
	}
};