// Copyright Epic Games, Inc. All Rights Reserved.

#pragma once

#include "Containers/Array.h"
#include "CoreMinimal.h"
#include "EdGraph/EdGraphNode.h"
#include "EdGraph/EdGraphPin.h"
#include "HAL/Platform.h"
#include "Internationalization/Text.h"
#include "K2Node.h"
#include "UObject/NameTypes.h"
#include "UObject/ObjectMacros.h"
#include "UObject/UObjectGlobals.h"

#include "FormatError.generated.h"

class FBlueprintActionDatabaseRegistrar;
class FString;
class UEdGraph;
class UObject;


//
// Export log verbosity to blueprints.
//
UENUM(BlueprintType)
enum class ElxLogVerbosity : uint8 {
	Fatal,
	Error,
	Warning,
	Display,
	Log,
	Verbose,
	VeryVerbose,
};

//
// Display Duration - how long to show a message on-screen.
//
UENUM(BlueprintType)
enum class ElxDisplayDuration : uint8 {
	No_Display	       = 0,
	Display_1_Seconds  = 1,
	Display_2_Seconds  = 2,
	Display_3_Seconds  = 3,
	Display_4_Seconds  = 4,
	Display_5_Seconds  = 5,
	Display_10_Seconds = 10,
	Display_20_Seconds = 20,
	Display_30_Seconds = 30,
	Display_40_Seconds = 40,
	Display_50_Seconds = 50,
	Display_60_Seconds = 60,
	Display_70_Seconds = 70,
	Display_80_Seconds = 80,
	Display_90_Seconds = 90,
	Display_1_Minute   = 101,
	Display_2_Minutes  = 102,
	Display_3_Minutes  = 103,
	Display_4_Minutes  = 104,
	Display_5_Minutes  = 105,
};

//
// Library functions used by Format Error Message.
//
UCLASS(MinimalAPI)
class UlxFormatErrorLibrary : public UBlueprintFunctionLibrary
{
	GENERATED_BODY()

public:
	UFUNCTION(BlueprintCallable, meta=(BlueprintInternalUseOnly = "true"))
	static void FormatErrorInternal(ElxLogVerbosity Verbosity, ElxDisplayDuration DisplayDuration, FText InPattern, TArray<FFormatArgumentData> InArgs);
};

//
// Library functions used by Format Error Message, and also
// by scripters writing their own Error Message Handler classes.
//
UCLASS(MinimalAPI)
class UK2Node_FormatError : public UK2Node
{
	GENERATED_UCLASS_BODY()

	//~ Begin UObject Interface
	virtual void PostEditChangeProperty(struct FPropertyChangedEvent& PropertyChangedEvent) override;
	//~ End UObject Interface

	//~ Begin UEdGraphNode Interface.
	virtual void AllocateDefaultPins() override;
	virtual FText GetNodeTitle(ENodeTitleType::Type TitleType) const override;
	virtual bool ShouldShowNodeProperties() const override { return true; }
	virtual void PinConnectionListChanged(UEdGraphPin* Pin) override;
	virtual void PinDefaultValueChanged(UEdGraphPin* Pin) override;
	virtual void PinTypeChanged(UEdGraphPin* Pin) override;
	virtual FText GetTooltipText() const override;
	virtual FText GetPinDisplayName(const UEdGraphPin* Pin) const override;
	//~ End UEdGraphNode Interface.

	//~ Begin UK2Node Interface.
	virtual bool IsNodePure() const override { return false; }
	virtual void PostReconstructNode() override;
	virtual bool NodeCausesStructuralBlueprintChange() const override { return true; }
	virtual void ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph) override;
	virtual ERedirectType DoPinsMatchForReconstruction(const UEdGraphPin* NewPin, int32 NewPinIndex, const UEdGraphPin* OldPin, int32 OldPinIndex) const override;
	virtual bool IsConnectionDisallowed(const UEdGraphPin* MyPin, const UEdGraphPin* OtherPin, FString& OutReason) const override;
	virtual void GetMenuActions(FBlueprintActionDatabaseRegistrar& ActionRegistrar) const override;
	virtual FText GetMenuCategory() const override;
	virtual int32 GetNodeRefreshPriority() const override { return EBaseNodeRefreshPriority::Low_UsesDependentWildcard; }
	//~ End UK2Node Interface.

private:
	/** Create all necessary pins */
	void CreateCorrectPins();

	/** Synchronize the type of the given argument pin with the type its connected to, or reset it to a wildcard pin if there's no connection */
	void SynchronizeArgumentPinType(UEdGraphPin* Pin);

private:
	/** When adding arguments to the node, their names are placed here and are generated as pins during construction */
	UPROPERTY()
	TArray<FString> PinNames;

	/** Tooltip text for this node. */
	FText NodeTooltip;
};