// Console commands of the look (DESIGN_UE.md section 9.3): Descent.Look.Set <param> <value>.

#include "Debug/DescentCommandUtil.h"
#include "Render/DescentEnvironment.h"
#include "TheDescent.h"

#include "Engine/World.h"
#include "HAL/IConsoleManager.h"

namespace
{
	void CmdLookSet(const TArray<FString>& Args, UWorld* World)
	{
		TArray<double> N;
		ADescentEnvironment* Env = ADescentEnvironment::Get(World);
		if (Args.Num() < 2 || !Descent::Cmd::ParseNumbers(Args, 1, 1, N))
		{
			Descent::Cmd::Fail(World, TEXT("Descent.Look.Set"), TEXT("usage: Descent.Look.Set <Exposure|Bloom|WaterPP|Volumetric|Snow|Lamp> <value>"));
			return;
		}
		FString Error;
		if (!Env)
		{
			// Exposure and Bloom are cvars and work without a world.
			if (Args[0].Equals(TEXT("Exposure"), ESearchCase::IgnoreCase) || Args[0].Equals(TEXT("Bloom"), ESearchCase::IgnoreCase))
			{
				IConsoleVariable* V = IConsoleManager::Get().FindConsoleVariable(Args[0].Equals(TEXT("Exposure"), ESearchCase::IgnoreCase) ? TEXT("descent.Look.ExposureEV") : TEXT("descent.Look.Bloom"));
				if (V) { V->Set(static_cast<float>(N[0]), ECVF_SetByConsole); return; }
			}
			Descent::Cmd::Fail(World, TEXT("Descent.Look.Set"), TEXT("there is no environment actor (needs a running game)"));
			return;
		}
		if (!Env->SetLookParam(Args[0], N[0], Error))
		{
			Descent::Cmd::Fail(World, TEXT("Descent.Look.Set"), Error);
			return;
		}
		UE_LOG(LogDescent, Display, TEXT("Look.Set %s = %g"), *Args[0], N[0]);
	}

	FAutoConsoleCommandWithWorldAndArgs GLookCmdSet(TEXT("Descent.Look.Set"), TEXT("Descent.Look.Set <Exposure|Bloom|WaterPP|Volumetric|Snow|Lamp> <value> - look switches for tests"),
		FConsoleCommandWithWorldAndArgsDelegate::CreateStatic(&CmdLookSet));
}