/*
 * Copyright (c) Contributors to the Open 3D Engine Project.
 * For complete copyright and license terms please see the LICENSE at the root of this distribution.
 *
 * SPDX-License-Identifier: Apache-2.0 OR MIT
 *
 */

#include <Launcher.h>

#include <AzCore/Casting/numeric_cast.h>
#include <AzCore/Component/ComponentApplicationLifecycle.h>
#include <AzCore/Debug/Trace.h>
#include <AzCore/IO/Path/Path.h>
#include <AzCore/IO/SystemFile.h>
#include <AzCore/Settings/SettingsRegistryMergeUtils.h>
#include <AzCore/Console/IConsole.h>
#include <AzCore/std/smart_ptr/make_shared.h>
#include <AzCore/StringFunc/StringFunc.h>
#include <AzCore/Utils/Utils.h>
#include <AzFramework/Asset/AssetSystemBus.h>
#include <AzFramework/IO/RemoteStorageDrive.h>
#include <AzFramework/Windowing/NativeWindow.h>
#include <AzFramework/Windowing/WindowBus.h>

#include <AzGameFramework/Application/GameApplication.h>

#include <CryLibrary.h>
#include <ISystem.h>
#include <ITimer.h>
#include <LegacyAllocator.h>

#include <Launcher_Traits_Platform.h>

#if defined(AZ_MONOLITHIC_BUILD)
extern "C" void CreateStaticModules(AZStd::vector<AZ::Module*>& modulesOut);
#endif //  defined(AZ_MONOLITHIC_BUILD)

// Add the "REMOTE_ASSET_PROCESSOR" define except in release
// this makes it so that asset processor functions.  Without this, all assets must be present and on local media
// with this, the asset processor can be used to remotely process assets.
#if !defined(_RELEASE)
#   define REMOTE_ASSET_PROCESSOR
#endif

void CVar_OnViewportPosition(const AZ::Vector2& value);

namespace
{
    void CVar_OnViewportResize(const AZ::Vector2& value);

    AZ_CVAR(AZ::Vector2, r_viewportSize, AZ::Vector2::CreateZero(), CVar_OnViewportResize, AZ::ConsoleFunctorFlags::DontReplicate,
        "The default size for the launcher viewport, 0 0 means full screen");

    void CVar_OnViewportResize(const AZ::Vector2& value)
    {
        AzFramework::NativeWindowHandle windowHandle = nullptr;
        AzFramework::WindowSystemRequestBus::BroadcastResult(windowHandle, &AzFramework::WindowSystemRequestBus::Events::GetDefaultWindowHandle);
        AzFramework::WindowSize newSize = AzFramework::WindowSize(aznumeric_cast<int32_t>(value.GetX()), aznumeric_cast<int32_t>(value.GetY()));
        AzFramework::WindowRequestBus::Broadcast(&AzFramework::WindowRequestBus::Events::ResizeClientArea, newSize);
    }
    
    AZ_CVAR(AZ::Vector2, r_viewportPos, AZ::Vector2::CreateZero(), CVar_OnViewportPosition, AZ::ConsoleFunctorFlags::DontReplicate,
        "The default position for the launcher viewport, 0 0 means top left corner of your main desktop");

    void ExecuteConsoleCommandFile(AzFramework::Application& application)
    {
        const AZStd::string_view customConCmdKey = "console-command-file";
        const AZ::CommandLine* commandLine = application.GetCommandLine();
        AZStd::size_t numSwitchValues = commandLine->GetNumSwitchValues(customConCmdKey);
        if (numSwitchValues > 0)
        {
            // The expectations for command line parameters is that the "last one wins"
            // That way it allows users and test scripts to override previous command line options by just listing them later on the invocation line
            const AZStd::string& consoleCmd = commandLine->GetSwitchValue(customConCmdKey, numSwitchValues - 1);
            if (!consoleCmd.empty())
            {
                AZ::Interface<AZ::IConsole>::Get()->ExecuteConfigFile(consoleCmd.c_str());
            }
        }
    }

#if AZ_TRAIT_LAUNCHER_USE_CRY_DYNAMIC_MODULE_HANDLE
    // mimics AZ::DynamicModuleHandle but uses CryLibrary under the hood,
    // which is necessary to properly load legacy Cry libraries on some platforms
    class DynamicModuleHandle
    {
    public:
        AZ_CLASS_ALLOCATOR(DynamicModuleHandle, AZ::OSAllocator, 0)

        static AZStd::unique_ptr<DynamicModuleHandle> Create(const char* fullFileName)
        {
            return AZStd::unique_ptr<DynamicModuleHandle>(aznew DynamicModuleHandle(fullFileName));
        }

        DynamicModuleHandle(const DynamicModuleHandle&) = delete;
        DynamicModuleHandle& operator=(const DynamicModuleHandle&) = delete;

        ~DynamicModuleHandle()
        {
            Unload();
        }

        // argument is strictly to match the API of AZ::DynamicModuleHandle
        bool Load(bool unused)
        {
            AZ_UNUSED(unused);

            if (IsLoaded())
            {
                return true;
            }

            m_moduleHandle = CryLoadLibrary(m_fileName.c_str());
            return IsLoaded();
        }

        bool Unload()
        {
            if (!IsLoaded())
            {
                return false;
            }

            return CryFreeLibrary(m_moduleHandle);
        }

        bool IsLoaded() const
        {
            return m_moduleHandle != nullptr;
        }

        const AZ::OSString& GetFilename() const
        {
            return m_fileName;
        }

        template<typename Function>
        Function GetFunction(const char* functionName) const
        {
            if (IsLoaded())
            {
                return reinterpret_cast<Function>(CryGetProcAddress(m_moduleHandle, functionName));
            }
            else
            {
                return nullptr;
            }
        }


    private:
        DynamicModuleHandle(const char* fileFullName)
            : m_fileName()
            , m_moduleHandle(nullptr)
        {
            m_fileName = AZ::OSString::format("%s%s%s",
                CrySharedLibraryPrefix, fileFullName, CrySharedLibraryExtension);
        }

        AZ::OSString m_fileName;
        HMODULE m_moduleHandle;
    };
#else
    // mimics AZ::DynamicModuleHandle but also calls InjectEnvironmentFunction on
    // the loaded module which is necessary to properly load legacy Cry libraries
    class DynamicModuleHandle
    {
    public:
        AZ_CLASS_ALLOCATOR(DynamicModuleHandle, AZ::OSAllocator, 0);

        static AZStd::unique_ptr<DynamicModuleHandle> Create(const char* fullFileName)
        {
            return AZStd::unique_ptr<DynamicModuleHandle>(aznew DynamicModuleHandle(fullFileName));
        }

        bool Load(bool isInitializeFunctionRequired)
        {
            const bool loaded = m_moduleHandle->Load(isInitializeFunctionRequired);
            if (loaded)
            {
                // We need to inject the environment first thing so that allocators are available immediately
                InjectEnvironmentFunction injectEnv = GetFunction<InjectEnvironmentFunction>(INJECT_ENVIRONMENT_FUNCTION);
                if (injectEnv)
                {
                    auto env = AZ::Environment::GetInstance();
                    injectEnv(env);
                }
            }
            return loaded;
        }

        bool Unload()
        {
            bool unloaded = m_moduleHandle->Unload();
            if (unloaded)
            {
                DetachEnvironmentFunction detachEnv = GetFunction<DetachEnvironmentFunction>(DETACH_ENVIRONMENT_FUNCTION);
                if (detachEnv)
                {
                    detachEnv();
                }
            }
            return unloaded;
        }

        template<typename Function>
        Function GetFunction(const char* functionName) const
        {
            return m_moduleHandle->GetFunction<Function>(functionName);
        }

    private:
        DynamicModuleHandle(const char* fileFullName)
            : m_moduleHandle(AZ::DynamicModuleHandle::Create(fileFullName))
        {
        }

        AZStd::unique_ptr<AZ::DynamicModuleHandle> m_moduleHandle;
    };
#endif // AZ_TRAIT_LAUNCHER_USE_CRY_DYNAMIC_MODULE_HANDLE

    void RunMainLoop(AzGameFramework::GameApplication& gameApplication)
    {
        // Ideally we'd just call GameApplication::RunMainLoop instead, but
        // we'd have to stop calling ISystem::UpdatePreTickBus / PostTickBus
        // directly, and instead have something subscribe to the TickBus in
        // order to call them, using order ComponentTickBus::TICK_FIRST - 1
        // and ComponentTickBus::TICK_LAST + 1 to ensure they get called at
        // the same time as they do now. Also, we'd need to pass a function
        // pointer to AzGameFramework::GameApplication::MainLoop that would
        // be used to call ITimer::GetFrameTime (unless we could also shift
        // our frame time to be managed by AzGameFramework::GameApplication
        // instead, which probably isn't going to happen anytime soon given
        // how many things depend on the ITimer interface).
        ISystem* system = gEnv ? gEnv->pSystem : nullptr;
        while (!gameApplication.WasExitMainLoopRequested())
        {
            // Pump the system event loop
            gameApplication.PumpSystemEventLoopUntilEmpty();

            if (gameApplication.WasExitMainLoopRequested())
            {
                break;
            }

            // Update the AzFramework system tick bus
            gameApplication.TickSystem();

            // Pre-update CrySystem
            if (system)
            {
                system->UpdatePreTickBus();
            }

            // Update the AzFramework application tick bus
            gameApplication.Tick(gEnv->pTimer->GetFrameTime());

            // Post-update CrySystem
            if (system)
            {
                system->UpdatePostTickBus();
            }
        }
    }
}


namespace O3DELauncher
{
    AZ_CVAR(bool, bg_ConnectToAssetProcessor, true, nullptr, AZ::ConsoleFunctorFlags::DontReplicate, "If true, the process will launch and connect to the asset processor");

    bool PlatformMainInfo::CopyCommandLine(int argc, char** argv)
    {
        for (int argIndex = 0; argIndex < argc; ++argIndex)
        {
            if (!AddArgument(argv[argIndex]))
            {
                return false;
            }
        }
        return true;
    }

    bool PlatformMainInfo::AddArgument(const char* arg)
    {
        AZ_Error("Launcher", arg, "Attempting to add a nullptr command line argument!");

        bool needsQuote = (strstr(arg, " ") != nullptr);
        bool needsSpace = (m_commandLine[0] != 0);

        // strip the previous null-term from the count to prevent double counting
        m_commandLineLen = (m_commandLineLen == 0) ? 0 : (m_commandLineLen - 1);

        // compute the expected length with the added argument
        size_t argLen = strlen(arg);
        size_t pendingLen = m_commandLineLen + argLen + 1 + (needsSpace ? 1 : 0) + (needsQuote ? 2 : 0); // +1 null-term, [+1 space], [+2 quotes]

        if (pendingLen >= AZ_COMMAND_LINE_LEN)
        {
            AZ_Assert(false, "Command line exceeds the %d character limit!", AZ_COMMAND_LINE_LEN);
            return false;
        }

        if (needsSpace)
        {
            m_commandLine[m_commandLineLen++] = ' ';
        }

        if (needsQuote) // Branching instead of using a ternary on the format string to avoid warning 4774 (format literal expected)
        {
            azsnprintf(m_commandLine + m_commandLineLen,
                AZ_COMMAND_LINE_LEN - m_commandLineLen,
                "\"%s\"",
                arg);
        }
        else
        {
            azsnprintf(m_commandLine + m_commandLineLen,
                AZ_COMMAND_LINE_LEN - m_commandLineLen,
                "%s",
                arg);
        }

        // Inject the argument in the argument buffer to preserve/replicate argC and argV
        azstrncpy(&m_commandLineArgBuffer[m_nextCommandLineArgInsertPoint],
            AZ_COMMAND_LINE_LEN - m_nextCommandLineArgInsertPoint,
            arg,
            argLen+1);
        m_argV[m_argC++] = &m_commandLineArgBuffer[m_nextCommandLineArgInsertPoint];
        m_nextCommandLineArgInsertPoint += argLen + 1;

        m_commandLineLen = pendingLen;
        return true;
    }


    const char* GetReturnCodeString(ReturnCode code)
    {
        switch (code)
        {
            case ReturnCode::Success:
                return "Success";

            case ReturnCode::ErrCommandLine:
                return "Failed to copy command line arguments";

            case ReturnCode::ErrResourceLimit:
                return "A resource limit failed to update";

            case ReturnCode::ErrAppDescriptor:
                return "Application descriptor file was not found";

            case ReturnCode::ErrCrySystemLib:
                return "Failed to load the CrySystem library";

            case ReturnCode::ErrCrySystemInterface:
                return "Failed to initialize the CrySystem Interface";

            case ReturnCode::ErrCryEnvironment:
                return "Failed to initialize the global environment";

            case ReturnCode::ErrAssetProccessor:
                return "Failed to connect to AssetProcessor while the /Amazon/AzCore/Bootstrap/wait_for_connect value is 1\n."
                    "wait_for_connect can be set to 0 within the bootstrap to allow connecting to the AssetProcessor"
                    " to not be an error if unsuccessful.";
            default:
                return "Unknown error code";
        }
    }

    void CompileCriticalAssets();
    void CreateRemoteFileIO();

    bool ConnectToAssetProcessor()
    {
        bool connectedToAssetProcessor{};
        // When the AssetProcessor is already launched it should take less than a second to perform a connection
        // but when the AssetProcessor needs to be launch it could take up to 15 seconds to have the AssetProcessor initialize
        // and able to negotiate a connection when running a debug build
        // and to negotiate a connection
        // Setting the connectTimeout to 3 seconds if not set within the settings registry

        AzFramework::AssetSystem::ConnectionSettings connectionSettings;
        AzFramework::AssetSystem::ReadConnectionSettingsFromSettingsRegistry(connectionSettings);

        connectionSettings.m_launchAssetProcessorOnFailedConnection = true;
        connectionSettings.m_connectionIdentifier = AzFramework::AssetSystem::ConnectionIdentifiers::Game;
        connectionSettings.m_loggingCallback = []([[maybe_unused]] AZStd::string_view logData)
        {
            AZ_TracePrintf("Launcher", "%.*s", aznumeric_cast<int>(logData.size()), logData.data());
        };

        AzFramework::AssetSystemRequestBus::BroadcastResult(connectedToAssetProcessor, &AzFramework::AssetSystemRequestBus::Events::EstablishAssetProcessorConnection, connectionSettings);

        if (connectedToAssetProcessor)
        {
            AZ_TracePrintf("Launcher", "Connected to Asset Processor\n");
            CreateRemoteFileIO();
            CompileCriticalAssets();
        }

        return connectedToAssetProcessor;
    }

    //! Compiles the critical assets that are within the Engine directory of Open 3D Engine
    //! This code should be in a centralized location, but doesn't belong in AzFramework
    //! since it is specific to how Open 3D Engine projects has assets setup
    void CompileCriticalAssets()
    {
        // VERY early on, as soon as we can, request that the asset system make sure the following assets take priority over others,
        // so that by the time we ask for them there is a greater likelihood that they're already good to go.
        // these can be loaded later but are still important:
        AzFramework::AssetSystemRequestBus::Broadcast(&AzFramework::AssetSystem::AssetSystemRequests::EscalateAssetBySearchTerm, "/texturemsg/");
        AzFramework::AssetSystemRequestBus::Broadcast(&AzFramework::AssetSystem::AssetSystemRequests::EscalateAssetBySearchTerm, "engineassets/materials");
        AzFramework::AssetSystemRequestBus::Broadcast(&AzFramework::AssetSystem::AssetSystemRequests::EscalateAssetBySearchTerm, "engineassets/geomcaches");
        AzFramework::AssetSystemRequestBus::Broadcast(&AzFramework::AssetSystem::AssetSystemRequests::EscalateAssetBySearchTerm, "engineassets/objects");

        // some are specifically extra important and will cause issues if missing completely:
        AzFramework::AssetSystemRequestBus::Broadcast(&AzFramework::AssetSystem::AssetSystemRequests::CompileAssetSync, "engineassets/objects/default.cgf");
    }

    //! Remote FileIO to use as a Virtual File System
    //! Communication of FileIOBase operations occur through an AssetProcessor connection
    void CreateRemoteFileIO()
    {
        AZ::SettingsRegistryInterface* settingsRegistry = AZ::SettingsRegistry::Get();
        AZ::s64 allowRemoteFilesystem{};

        AZ::SettingsRegistryMergeUtils::PlatformGet(*settingsRegistry, allowRemoteFilesystem,
            AZ::SettingsRegistryMergeUtils::BootstrapSettingsRootKey, "remote_filesystem");
        if (allowRemoteFilesystem != 0)
        {
            // The SetInstance calls below will assert if this has already been set and we don't clear first
            // Application::StartCommon will set a LocalFileIO base first.
            // This provides an opportunity for the RemoteFileIO to override the direct instance
            auto remoteFileIo = new AZ::IO::RemoteFileIO(AZ::IO::FileIOBase::GetDirectInstance()); // Wrap LocalFileIO the direct instance
            AZ::IO::FileIOBase::SetDirectInstance(nullptr);
            // Wrap AZ:IO::LocalFileIO the direct instance
            AZ::IO::FileIOBase::SetDirectInstance(remoteFileIo);
        }
    }

    ReturnCode Run(const PlatformMainInfo& mainInfo)
    {
        if (mainInfo.m_updateResourceLimits
            && !mainInfo.m_updateResourceLimits())
        {
            return ReturnCode::ErrResourceLimit;
        }

        // Game Application (AzGameFramework)
        int     gameArgC = mainInfo.m_argC;
        char**  gameArgV = const_cast<char**>(mainInfo.m_argV);
        constexpr size_t MaxCommandArgsCount = 128;
        using ArgumentContainer = AZStd::fixed_vector<char*, MaxCommandArgsCount>;
        ArgumentContainer argContainer(gameArgV, gameArgV + gameArgC);

        using FixedValueString = AZ::SettingsRegistryInterface::FixedValueString;
        // Inject the Engine Path, Project Path and Project Name into the CommandLine parameters to the command line
        // in order to be used in the Settings Registry

        // The command line overrides are stored in the following fixed strings
        // until the ComponentApplication constructor can parse the command line parameters
        FixedValueString projectNameOptionOverride;

        // Insert the project_name option to the front
        const AZStd::string_view launcherProjectName = GetProjectName();
        if (!launcherProjectName.empty())
        {
            const auto projectNameKey = FixedValueString(AZ::SettingsRegistryMergeUtils::ProjectSettingsRootKey) + "/project_name";
            projectNameOptionOverride = FixedValueString::format(R"(--regset="%s=%.*s")",
                projectNameKey.c_str(), aznumeric_cast<int>(launcherProjectName.size()), launcherProjectName.data());
            argContainer.emplace_back(projectNameOptionOverride.data());
        }

        // Non-host platforms cannot use the project path that is #defined within the launcher.
        // In this case the the result of AZ::Utils::GetDefaultAppRoot is used instead
#if !AZ_TRAIT_OS_IS_HOST_OS_PLATFORM
        FixedValueString projectPathOptionOverride;
        FixedValueString enginePathOptionOverride;
        AZStd::string_view projectPath;
        // Make sure the defaultAppRootPath variable is in scope long enough until the projectPath string_view is used below
        AZStd::optional<AZ::IO::FixedMaxPathString> defaultAppRootPath = AZ::Utils::GetDefaultAppRootPath();
        if (defaultAppRootPath.has_value())
        {
            projectPath = *defaultAppRootPath;
        }
        if (!projectPath.empty())
        {
            const auto projectPathKey = FixedValueString(AZ::SettingsRegistryMergeUtils::BootstrapSettingsRootKey)
                + "/project_path";
            projectPathOptionOverride = FixedValueString::format(R"(--regset="%s=%.*s")",
                projectPathKey.c_str(), aznumeric_cast<int>(projectPath.size()), projectPath.data());
            argContainer.emplace_back(projectPathOptionOverride.data());

            // For non-host platforms set the engine root to be the project root
            // Since the directories available during execution are limited on those platforms
            AZStd::string_view enginePath = projectPath;
            const auto enginePathKey = FixedValueString(AZ::SettingsRegistryMergeUtils::BootstrapSettingsRootKey)
                + "/engine_path";
            enginePathOptionOverride = FixedValueString ::format(R"(--regset="%s=%.*s")",
                enginePathKey.c_str(), aznumeric_cast<int>(enginePath.size()), enginePath.data());
            argContainer.emplace_back(enginePathOptionOverride.data());
        }
#endif

        AzGameFramework::GameApplication gameApplication(aznumeric_cast<int>(argContainer.size()), argContainer.data());
        // The settings registry has been created by the AZ::ComponentApplication constructor at this point
        auto settingsRegistry = AZ::SettingsRegistry::Get();
        if (settingsRegistry == nullptr)
        {
            // Settings registry must be available at this point in order to continue
            return ReturnCode::ErrValidation;
        }

        const AZStd::string_view buildTargetName = GetBuildTargetName();
        AZ::SettingsRegistryMergeUtils::MergeSettingsToRegistry_AddBuildSystemTargetSpecialization(*settingsRegistry, buildTargetName);

        AZ_TracePrintf("Launcher", R"(Running project "%.*s")" "\n"
            R"(The project name has been successfully set in the Settings Registry at key "%s/project_name")"
            R"( for Launcher target "%.*s")" "\n",
            aznumeric_cast<int>(launcherProjectName.size()), launcherProjectName.data(),
            AZ::SettingsRegistryMergeUtils::ProjectSettingsRootKey,
            aznumeric_cast<int>(buildTargetName.size()), buildTargetName.data());

        AZ::SettingsRegistryInterface::FixedValueString pathToAssets;
        if (!settingsRegistry->Get(pathToAssets, AZ::SettingsRegistryMergeUtils::FilePathKey_CacheRootFolder))
        {
            // Default to mainInfo.m_appResource if the cache root folder is missing from the Settings Registry
            pathToAssets = mainInfo.m_appResourcesPath;
            AZ_Error("Launcher", false, "Unable to retrieve asset cache root folder from the settings registry at json pointer path %s",
                AZ::SettingsRegistryMergeUtils::FilePathKey_CacheRootFolder);

        }
        else
        {
            AZ_TracePrintf("Launcher", "The asset cache folder of %s has been successfully read from the Settings Registry\n",
                pathToAssets.c_str());
        }

        CryAllocatorsRAII cryAllocatorsRAII;

        // System Init Params ("Legacy" Open 3D Engine)
        SSystemInitParams systemInitParams;
        memset(&systemInitParams, 0, sizeof(SSystemInitParams));

        {
            AzGameFramework::GameApplication::StartupParameters gameApplicationStartupParams;

            if (mainInfo.m_allocator)
            {
                gameApplicationStartupParams.m_allocator = mainInfo.m_allocator;
            }
            else if (AZ::AllocatorInstance<AZ::OSAllocator>::IsReady())
            {
                gameApplicationStartupParams.m_allocator = &AZ::AllocatorInstance<AZ::OSAllocator>::Get();
            }

        #if defined(AZ_MONOLITHIC_BUILD)
            gameApplicationStartupParams.m_createStaticModulesCallback = CreateStaticModules;
            gameApplicationStartupParams.m_loadDynamicModules = false;
        #endif // defined(AZ_MONOLITHIC_BUILD)

            gameApplication.Start({}, gameApplicationStartupParams);

#if defined(REMOTE_ASSET_PROCESSOR)
            bool allowedEngineConnection = !systemInitParams.bToolMode && !systemInitParams.bTestMode && bg_ConnectToAssetProcessor;

            //connect to the asset processor using the bootstrap values
            if (allowedEngineConnection)
            {
                if (!ConnectToAssetProcessor())
                {
                    AZ::s64 waitForConnect{};
                    AZ::SettingsRegistryMergeUtils::PlatformGet(*settingsRegistry, waitForConnect,
                        AZ::SettingsRegistryMergeUtils::BootstrapSettingsRootKey, "wait_for_connect");
                    if (waitForConnect != 0)
                    {
                        AZ_Error("Launcher", false, "Failed to connect to AssetProcessor.");
                        return ReturnCode::ErrAssetProccessor;
                    }
                }
            }
#endif
            AZ_Assert(AZ::AllocatorInstance<AZ::SystemAllocator>::IsReady(), "System allocator was not created or creation failed.");
            //Initialize the Debug trace instance to create necessary environment variables
            AZ::Debug::Trace::Instance().Init();

            if (!IsDedicatedServer() && !systemInitParams.bToolMode && !systemInitParams.bTestMode)
            {
                if (auto nativeUI = AZ::Interface<AZ::NativeUI::NativeUIRequests>::Get(); nativeUI != nullptr)
                {
                    nativeUI->SetMode(AZ::NativeUI::Mode::ENABLED);
                }
            }
        }

        if (mainInfo.m_onPostAppStart)
        {
            mainInfo.m_onPostAppStart();
        }

        azstrncpy(systemInitParams.szSystemCmdLine, sizeof(systemInitParams.szSystemCmdLine),
            mainInfo.m_commandLine, mainInfo.m_commandLineLen);

        systemInitParams.pSharedEnvironment = AZ::Environment::GetInstance();
        systemInitParams.sLogFileName = GetLogFilename();
        systemInitParams.hInstance = mainInfo.m_instance;
        systemInitParams.hWnd = mainInfo.m_window;
        systemInitParams.pPrintSync = mainInfo.m_printSink;

        systemInitParams.bDedicatedServer = IsDedicatedServer();
        if (IsDedicatedServer())
        {
            AZ::Interface<AZ::IConsole>::Get()->PerformCommand("sv_isDedicated true");
        }
        else
        {
            AZ::Interface<AZ::IConsole>::Get()->PerformCommand("sv_isDedicated false");
        }

        bool remoteFileSystemEnabled{};
        AZ::SettingsRegistryMergeUtils::PlatformGet(*settingsRegistry, remoteFileSystemEnabled,
            AZ::SettingsRegistryMergeUtils::BootstrapSettingsRootKey, "remote_filesystem");
        if (remoteFileSystemEnabled)
        {
            AZ_TracePrintf("Launcher", "Application is configured for VFS");
            AZ_TracePrintf("Launcher", "Log and cache files will be written to the Cache directory on your host PC");

#if defined(AZ_ENABLE_TRACING)
            constexpr const char* message = "If your game does not run, check any of the following:\n"
                                            "\t- Verify the remote_ip address is correct in bootstrap.cfg";
#endif
            if (mainInfo.m_additionalVfsResolution)
            {
                AZ_TracePrintf("Launcher", "%s\n%s", message, mainInfo.m_additionalVfsResolution)
            }
            else
            {
                AZ_TracePrintf("Launcher", "%s", message)
            }
        }
        else
        {
            AZ_TracePrintf("Launcher", "Application is configured to use device local files at %s\n", pathToAssets.c_str());
            AZ_TracePrintf("Launcher", "Log and cache files will be written to device storage\n");
        }

        // Create CrySystem.
    #if !defined(AZ_MONOLITHIC_BUILD)
        AZStd::unique_ptr<DynamicModuleHandle> crySystemLibrary;
        PFNCREATESYSTEMINTERFACE CreateSystemInterface = nullptr;

        crySystemLibrary = DynamicModuleHandle::Create("CrySystem");
        if (crySystemLibrary->Load(false))
        {
            CreateSystemInterface = crySystemLibrary->GetFunction<PFNCREATESYSTEMINTERFACE>("CreateSystemInterface");
            if (CreateSystemInterface)
            {
                systemInitParams.pSystem = CreateSystemInterface(systemInitParams);
            }
        }
    #else
        systemInitParams.pSystem = CreateSystemInterface(systemInitParams);
    #endif // !defined(AZ_MONOLITHIC_BUILD)

        AZ::ComponentApplicationLifecycle::SignalEvent(*settingsRegistry, "LegacySystemInterfaceCreated", R"({})");

        ReturnCode status = ReturnCode::Success;

        if (systemInitParams.pSystem)
        {
            // Process queued events before main loop.
            AZ::TickBus::ExecuteQueuedEvents();

#if !defined(SYS_ENV_AS_STRUCT)
            gEnv = systemInitParams.pSystem->GetGlobalEnvironment();
        #endif // !defined(SYS_ENV_AS_STRUCT)

            if (gEnv && gEnv->pConsole)
            {
                // Execute autoexec.cfg to load the initial level
                auto autoExecFile = AZ::IO::FixedMaxPath{pathToAssets} / "autoexec.cfg";
                AZ::Interface<AZ::IConsole>::Get()->ExecuteConfigFile(autoExecFile.Native());

                // Find out if console command file was passed 
                // via --console-command-file=%filename% and execute it
                ExecuteConsoleCommandFile(gameApplication);

                gEnv->pSystem->ExecuteCommandLine(false);

                // Run the main loop
                RunMainLoop(gameApplication);
            }
            else
            {
                status = ReturnCode::ErrCryEnvironment;
            }
        }
        else
        {
            status = ReturnCode::ErrCrySystemInterface;
        }

    #if !defined(AZ_MONOLITHIC_BUILD)
        delete systemInitParams.pSystem;
        crySystemLibrary.reset(nullptr);
    #endif // !defined(AZ_MONOLITHIC_BUILD)

        gameApplication.Stop();
        AZ::Debug::Trace::Instance().Destroy();

        return status;
    }
}