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

#pragma once

#include "Misc/ConfigCacheIni.h"

#define UE_ENABLE_UNVERSIONED_PROPERTY_TEST WITH_EDITORONLY_DATA

struct FUnversionedPropertyTestInput
{
    const UStruct* Struct;
    uint8* const OriginalInstance;
    UStruct* const DefaultsStruct;
    uint8* const Defaults;
};

#if UE_ENABLE_UNVERSIONED_PROPERTY_TEST

void RunUnversionedPropertyTest(const FUnversionedPropertyTestInput& Input);

// Avoids starting tests recursively when we test serializing nested structs or struct containers.
// The test is both started from and recursively calls SerializeTaggedProperties().
struct FUnversionedPropertyTestRunner
{
    static thread_local bool bTlsTesting;
    bool bStartedTest = false;

    explicit FUnversionedPropertyTestRunner(const FUnversionedPropertyTestInput& Input)
    {
        bool bTemp;
        static bool bEnabled = GConfig->GetBool(TEXT("Core.System"), TEXT("TestUnversionedPropertySerializationWhenCooking"), bTemp, GEngineIni) && bTemp;

        if (bEnabled && !bTlsTesting)
        {
            bTlsTesting  = true;
            bStartedTest = true;
            RunUnversionedPropertyTest(Input);
        }
    }

    ~FUnversionedPropertyTestRunner()
    {
        if (bStartedTest)
        {
            bTlsTesting = false;
        }
    }
};

// Intrusive test helper that records which properties were saved
struct FUnversionedPropertyTestCollector
{
    TArray<FProperty*>* Out;

    FUnversionedPropertyTestCollector();

    void RecordSavedProperty(FProperty* Property)
    {
        if (Out)
        {
            Out->Add(Property);
        }
    }
};

#else  // !UE_ENABLE_UNVERSIONED_PROPERTY_TEST

struct FUnversionedPropertyTestRunner
{
    explicit FUnversionedPropertyTestRunner(const FUnversionedPropertyTestInput& Input) {}
};

struct FUnversionedPropertyTestCollector
{
    void RecordSavedProperty(FProperty* Property) {}
};

#endif