DedicatedServerCourse/Source/FPSTemplate/Public/Game/ShooterGameMode.h

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

#pragma once

#include "CoreMinimal.h"
#include "ShooterGameModeBase.h"

#if WITH_GAMELIFT
#include "GameLiftServerSDK.h"
#endif

#include "ShooterGameMode.generated.h"


/*
struct FCommandLineArgs
{
	TMap<FString,FString> Options;
	TArray<FString> CmdArguments;
	
	void ParseCommandLine()
	{
		const TCHAR* CommandLine = FCommandLine::Get();

		//  Reserves estimated space to avoid reallocations
		Options.Reserve(10);
		CmdArguments.Reserve(10);
		
		FString Key, Value, Token;
		FString FlagName = FString(TEXT(""));
		while (FParse::Token(CommandLine, Token, true))
		{
			//  Check if token starts with '-'
			if (Token.StartsWith(TEXT("-")))
			{
				//  Remove the leading '-' and store the flag name
				FlagName = Token.Mid(1);
				
				//  If it's in the form Key=Value, split it
				if (FlagName.Split(TEXT("="), &Key, &Value))
				{
					Key=Key.ToLower();
					Value=Value.ToLower();
					//  Normalize boolean values
					if (Value.Equals(TEXT("true"), ESearchCase::IgnoreCase) || Value.Equals(TEXT("1")))
					{
						Options.Add(Key, TEXT("true"));
					}
					else if (Value.Equals(TEXT("false"), ESearchCase::IgnoreCase) || Value.Equals(TEXT("0")))
					{
						Options.Add(Key, TEXT("false"));
					}
					else
					{
						Options.Add(Key, Value);
					}
				}
				else
				{
					// Bare flag (for 
					// example -Debug or -NoSound)
					
					//  The convention is flags starting with "No" are false
					if (FlagName.StartsWith(TEXT("No")) && FlagName.Len() > 2)
					{
						Key = FlagName.Mid(2).ToLower();

						Options.Add(Key, TEXT("false"));
					}
					else
					{
						Key = FlagName.ToLower();
						Options.Add(Key, TEXT("true"));
					}
					
					//  Also add to Arguments array for backward compatibility
					CmdArguments.Add(FlagName);
				}
			}
			else
			{
				CmdArguments.Add(Token);
			}
		}
	}
	
	FString GetValueFromKey(const FString& Key, const FString& DefaultValue = TEXT("")) const
	{
		FString NormalizedKey = Key.ToLower();
		const FString* ValuePtr = Options.Find(NormalizedKey);
		return ValuePtr ? *ValuePtr : DefaultValue;
	}
	
	bool TryGetValue(const FString& Key, FString& OutValue) const
	{
		FString NormalizedKey = Key.ToLower();
		if (const FString* ValuePtr = Options.Find(NormalizedKey))
		{
			OutValue = *ValuePtr;
			return true;
		}
		return false;
	}
	
	FString ToString() const
	{
		FString Result;
		for (const auto& Pair : Options)
		{
			Result += FString::Printf(TEXT("-%s=%s "), *Pair.Key, *Pair.Value);
		}
		for (const FString& Arg : CmdArguments)
		{
			Result += Arg + TEXT(" ");
		}
		return Result.TrimEnd();
	}
	
	// Get a boolean value, returns Default if not found or invalid
	bool GetBool(const FString& Key, bool DefaultValue = false) const
	{
		FString Value;
		if (TryGetValue(Key, Value))
		{
			if (Value.Equals(TEXT("true"), ESearchCase::IgnoreCase) ||
				Value.Equals(TEXT("1")) ||
				Value.Equals(TEXT("yes"), ESearchCase::IgnoreCase))
			{
				return true;
			}
			if (Value.Equals(TEXT("false"), ESearchCase::IgnoreCase) ||
				Value.Equals(TEXT("0")) ||
				Value.Equals(TEXT("no"), ESearchCase::IgnoreCase))
			{
				return false;
			}
		}
		return DefaultValue;
	}

	// Get an integer value, returns Default if not found or not numeric
	int32 GetInt(const FString& Key, int32 DefaultValue = 0) const
	{
		FString Value;
		if (TryGetValue(Key, Value))
		{
			return FCString::Atoi(*Value);
		}
		return DefaultValue;
	}

	// Get a float value
	float GetFloat(const FString& Key, float DefaultValue = 0.0f) const
	{
		FString Value;
		if (TryGetValue(Key, Value))
		{
			return FCString::Atof(*Value);
		}
		return DefaultValue;
	}

	// Get as FName (useful for modes, map names, etc.)
	FName GetName(const FString& Key, const FName& DefaultValue = NAME_None) const
	{
		FString Value;
		if (TryGetValue(Key, Value))
		{
			return FName(*Value);
		}
		return DefaultValue;
	}
	
	// Set a string value (core setter used by others)
	void SetValue(const FString& Key, const FString& Value)
	{
		Options.Add(Key.ToLower(), Value.ToLower());
	}

	// Set a boolean option
	void SetBool(const FString& Key, bool bValue)
	{
		Options.Add(Key.ToLower(), bValue ? TEXT("true") : TEXT("false"));
	}

	// Set an integer option
	void SetInt(const FString& Key, int32 Value)
	{
		Options.Add(Key.ToLower(), FString::FromInt(Value));
	}

	// Set a float option (with minimal formatting)
	void SetFloat(const FString& Key, float Value, int32 Precision = 2)
	{
		FString FloatStr = FString::SanitizeFloat(Value, Precision);
		Options.Add(Key.ToLower(), FloatStr);
	}

	// Set an FName option
	void SetName(const FString& Key, const FName& NameValue)
	{
		Options.Add(Key.ToLower(), NameValue.ToString().ToLower());
	}

	// Add a bare flag (true/false toggle stored for ToString output)
	void SetFlag(const FString& Flag, bool bEnabled = true)
	{
		FString Key = Flag.ToLower();
		Options.Add(Key, bEnabled ? TEXT("true") : TEXT("false"));
		CmdArguments.Add(Flag);  // maintain compatibility with older flag parsing
	}
};
*/
DECLARE_LOG_CATEGORY_EXTERN(LogShooterGameMode, Log, All);

/**
 * 
 */
UCLASS()
class FPSTEMPLATE_API AShooterGameMode : public AShooterGameModeBase
{
	GENERATED_BODY()
	
public:
	AShooterGameMode();
	
protected:
	virtual void BeginPlay() override;

private:

	void InitGameLift();
#if WITH_GAMELIFT
	bool SetParametersFromCommandLine(FServerParameters& OutServerParameters, FProcessParameters& OutProcessParameters);
	static void LogServerParameters(const FServerParameters& InServerParameters);
	void SetProcessIdOnServerParameters(FServerParameters& OutServerParameters);
	bool ValidateServerParameters(const FString& CommandLine, const FString& ParameterName, FString& OutValue, const bool bCritical = true);
	void LogServerSummary(const FServerParameters& InServerParameters, const FProcessParameters& InProcessParameters);
	void BindGameLiftCallbackFunctions(FProcessParameters& ProcessParameters,
	                                   FGameLiftServerSDKModule& GameLiftSdkModule);
	void InitiateProcessReady(FProcessParameters& ProcessParameters, FGameLiftServerSDKModule& GameLiftSdkModule);
	bool InitiateConnectionWithGameLiftAgent(FServerParameters& ServerParameters,
	                                         FGameLiftServerSDKModule& GameLiftSdkModule);
#endif

};