// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "Kismet/BlueprintFunctionLibrary.h"
#include "GameLiftValidators.generated.h"

UENUM(BlueprintType)
enum class EGameLiftParams : uint8
{
	AuthToken,
	FleetId,
	HostId,
	ServerRegion,
	WebSocketUrl,
	Max					// Sentry to determine length of EGameLiftParams
};

UENUM(BlueprintType)
enum class EValidationError : uint8
{
	None,				//  Valid
	Empty,				//  Missing Parameter
	TooShort,			//  Too Short
	TooLong,			//  Too long
	InvalidFormat,		//  Invalid format
	NotFound			//  Sentinel value, any new error codes get put above this.
};

USTRUCT(BlueprintType)
struct FParamResult
{
	GENERATED_BODY()
	
	EGameLiftParams ParamType;
	FString Value;
	bool bValid;
	FString ErrorMessage;
	EValidationError ErrorCode;
};


UCLASS()
class FPSTEMPLATE_API UGameLiftValidators : public UBlueprintFunctionLibrary
{
	GENERATED_BODY()
	
private:
	static TArray<FString>& GetPatterns();


	
	static constexpr int32 MaxLengths[static_cast<int32>(EGameLiftParams::Max)] =
	{
		64,		//authToken
		512,	//FleetId
		128,	//HostId
		128,	//WebSocketUrl
		16,		//Region (ca-central-1)
	};
	
	static constexpr int32 MinLengths[static_cast<int32>(EGameLiftParams::Max)] =
	{
		1,	//authToken
		1,	//FleetId
		1,	//HostId
		1,	//WebSocketUrl
		3,	//Region (ca-central-1)
	};
	
	static bool IsStringValid(const FString& Value, EGameLiftParams ParamType);
	static bool IsStringShort(const FString& Value, EGameLiftParams ParamType);
	static bool IsStringLong(const FString& Value, EGameLiftParams ParamType);
	static bool IsMatchesRegex(const FString& Value, EGameLiftParams ParamType);

public:
	
	
	UFUNCTION(BlueprintCallable, Category = "GameLift")
	static FParamResult ValidateParam(const FString& Value, EGameLiftParams ParamType);
	
	
	UFUNCTION(BlueprintCallable, Category = "GameLift")
	static FString GetParameterFromEnum(EGameLiftParams InParam);
	
	UFUNCTION(BlueprintCallable, Category = "GameLift")
	static FString GetErrorFromEnum(EValidationError InParam);
	
	UFUNCTION(BlueprintCallable, Category = "GameLift")
	static void LogValidationErrorMessage(FParamResult ValidationResult);
	
};