// Copyright 1998-2017 Epic Games, Inc. All Rights Reserved.

#include "AndroidRuntimeSettings.h"
#include "Modules/ModuleManager.h"
#include "UObject/UnrealType.h"
#include "Misc/CoreDelegates.h"

#if WITH_EDITOR
#include "IAndroid_MultiTargetPlatformModule.h"
#endif

UAndroidRuntimeSettings::UAndroidRuntimeSettings(const FObjectInitializer& ObjectInitializer)
	: Super(ObjectInitializer)
	, Orientation(EAndroidScreenOrientation::Landscape)
	, bAndroidVoiceEnabled(false)
	, GoogleVRMode(EGoogleVRMode::DaydreamAndCardboard)
	, bEnableGooglePlaySupport(false)
	, bUseGetAccounts(false)
	, bMultiTargetFormat_ETC1(true)
	, bMultiTargetFormat_ETC2(true)
	, bMultiTargetFormat_DXT(true)
	, bMultiTargetFormat_PVRTC(true)
	, bMultiTargetFormat_ATC(true)
	, bMultiTargetFormat_ASTC(true)
	, TextureFormatPriority_ETC1(0.1f)
	, TextureFormatPriority_ETC2(0.2f)
	, TextureFormatPriority_DXT(0.6f)
	, TextureFormatPriority_PVRTC(0.8f)
	, TextureFormatPriority_ATC(0.5f)
	, TextureFormatPriority_ASTC(0.9f)
{
}

#if WITH_EDITOR
static void InvalidateAllAndroidPlatforms()
{
	ITargetPlatformModule* Module = FModuleManager::GetModulePtr<IAndroid_MultiTargetPlatformModule>("AndroidTargetPlatform");
	if (Module != nullptr)
	{
		FCoreDelegates::OnTargetPlatformChangedSupportedFormats.Broadcast(Module->GetTargetPlatform());
	}

	Module = FModuleManager::GetModulePtr<IAndroid_MultiTargetPlatformModule>("Android_PVRTCTargetPlatform");
	if (Module != nullptr)
	{
		FCoreDelegates::OnTargetPlatformChangedSupportedFormats.Broadcast(Module->GetTargetPlatform());
	}

	Module = FModuleManager::GetModulePtr<IAndroid_MultiTargetPlatformModule>("Android_ATCTargetPlatform");
	if (Module != nullptr)
	{
		FCoreDelegates::OnTargetPlatformChangedSupportedFormats.Broadcast(Module->GetTargetPlatform());
	}

	Module = FModuleManager::GetModulePtr<IAndroid_MultiTargetPlatformModule>("Android_DXTTargetPlatform");
	if (Module != nullptr)
	{
		FCoreDelegates::OnTargetPlatformChangedSupportedFormats.Broadcast(Module->GetTargetPlatform());
	}

	Module = FModuleManager::GetModulePtr<IAndroid_MultiTargetPlatformModule>("Android_ETC1TargetPlatform");
	if (Module != nullptr)
	{
		FCoreDelegates::OnTargetPlatformChangedSupportedFormats.Broadcast(Module->GetTargetPlatform());
	}

	Module = FModuleManager::GetModulePtr<IAndroid_MultiTargetPlatformModule>("Android_ETC2TargetPlatform");
	if (Module != nullptr)
	{
		FCoreDelegates::OnTargetPlatformChangedSupportedFormats.Broadcast(Module->GetTargetPlatform());
	}

	Module = FModuleManager::GetModulePtr<IAndroid_MultiTargetPlatformModule>("Android_ASTCTargetPlatform");
	if (Module != nullptr)
	{
		FCoreDelegates::OnTargetPlatformChangedSupportedFormats.Broadcast(Module->GetTargetPlatform());
	}

	Module = FModuleManager::GetModulePtr<IAndroid_MultiTargetPlatformModule>("Android_MultiTargetPlatform");
	if (Module != nullptr)
	{
		FCoreDelegates::OnTargetPlatformChangedSupportedFormats.Broadcast(Module->GetTargetPlatform());
	}
}

void UAndroidRuntimeSettings::PostEditChangeProperty(struct FPropertyChangedEvent& PropertyChangedEvent)
{
	Super::PostEditChangeProperty(PropertyChangedEvent);

	// Ensure that at least one architecture is supported
	if (!bBuildForArmV7 && !bBuildForX86 && !bBuildForX8664 && !bBuildForArm64)
	{
		bBuildForArmV7 = true;
		UpdateSinglePropertyInConfigFile(GetClass()->FindPropertyByName(GET_MEMBER_NAME_CHECKED(UAndroidRuntimeSettings, bBuildForArmV7)), GetDefaultConfigFilename());
	}

	if (PropertyChangedEvent.Property != nullptr)
	{
		if (PropertyChangedEvent.Property->GetFName() == GET_MEMBER_NAME_CHECKED(UAndroidRuntimeSettings, bBuildForESDeferred) ||
			PropertyChangedEvent.Property->GetFName() == GET_MEMBER_NAME_CHECKED(UAndroidRuntimeSettings, bSupportsVulkan) ||
			PropertyChangedEvent.Property->GetFName() == GET_MEMBER_NAME_CHECKED(UAndroidRuntimeSettings, bBuildForES2) ||
			PropertyChangedEvent.Property->GetFName() == GET_MEMBER_NAME_CHECKED(UAndroidRuntimeSettings, bBuildForES31))
		{
			// Supported shader formats changed so invalidate cache
			InvalidateAllAndroidPlatforms();
		}
	}

	// Ensure that at least one GPU architecture is supported
	if (!bBuildForES2 && !bBuildForESDeferred && !bSupportsVulkan && !bBuildForES31)
	{
		bBuildForES2 = true;
		UpdateSinglePropertyInConfigFile(GetClass()->FindPropertyByName(GET_MEMBER_NAME_CHECKED(UAndroidRuntimeSettings, bBuildForES2)), GetDefaultConfigFilename());

		// Supported shader formats changed so invalidate cache
		InvalidateAllAndroidPlatforms();
	}

	if (PropertyChangedEvent.Property != nullptr && PropertyChangedEvent.Property->GetName().StartsWith(TEXT("bMultiTargetFormat")))
	{
		UpdateSinglePropertyInConfigFile(PropertyChangedEvent.Property, GetDefaultConfigFilename());

		// Ensure we have at least one format for Android_Multi
		if (!bMultiTargetFormat_ETC1 && !bMultiTargetFormat_ETC2 && !bMultiTargetFormat_DXT && !bMultiTargetFormat_PVRTC && !bMultiTargetFormat_ATC && !bMultiTargetFormat_ASTC)
		{
			bMultiTargetFormat_ETC1 = true;
			UpdateSinglePropertyInConfigFile(GetClass()->FindPropertyByName(GET_MEMBER_NAME_CHECKED(UAndroidRuntimeSettings, bMultiTargetFormat_ETC1)), GetDefaultConfigFilename());
		}

		// Notify the Android_MultiTargetPlatform module if it's loaded
		IAndroid_MultiTargetPlatformModule* Module = FModuleManager::GetModulePtr<IAndroid_MultiTargetPlatformModule>("Android_MultiTargetPlatform");
		if (Module)
		{
			Module->NotifySelectedFormatsChanged();
		}
	}

	if (PropertyChangedEvent.Property != nullptr && PropertyChangedEvent.Property->GetName().StartsWith(TEXT("TextureFormatPriority")))
	{
		UpdateSinglePropertyInConfigFile(PropertyChangedEvent.Property, GetDefaultConfigFilename());

		// Notify the Android_MultiTargetPlatform module if it's loaded
		IAndroid_MultiTargetPlatformModule* Module = FModuleManager::GetModulePtr<IAndroid_MultiTargetPlatformModule>("Android_MultiTargetPlatform");
		if (Module)
		{
			Module->NotifySelectedFormatsChanged();
		}
	}
}

void UAndroidRuntimeSettings::PostInitProperties()
{
	Super::PostInitProperties();

	// If the config has an AdMobAdUnitID then we migrate it on load and clear the value
	if (!AdMobAdUnitID.IsEmpty())
	{
		AdMobAdUnitIDs.Add(AdMobAdUnitID);
		AdMobAdUnitID.Empty();
		UpdateDefaultConfigFile();
	}
}
#endif