/*
 * 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 "EditorDefs.h"

#ifdef WIN32
AZ_PUSH_DISABLE_WARNING(4458, "-Wunknown-warning-option")
#include <gdiplus.h>
AZ_POP_DISABLE_WARNING
#pragma comment (lib, "Gdiplus.lib")

#include <WinUser.h> // needed for MessageBoxW in the assert handler
#endif

#include <array>
#include <string>
#include <iostream>
#include <fstream>

#include "CryEdit.h"

// Qt
#include <QCommandLineParser>
#include <QSharedMemory>
#include <QSystemSemaphore>
#include <QDesktopServices>
#include <QElapsedTimer>
#include <QProcess>
#include <QScopedValueRollback>
#include <QClipboard>
#include <QMenuBar>
#include <QMessageBox>
#include <QDialogButtonBox>
#include <QUrlQuery>

// AzCore
#include <AzCore/Casting/numeric_cast.h>
#include <AzCore/Component/ComponentApplicationBus.h>
#include <AzCore/Component/ComponentApplicationLifecycle.h>
#include <AzCore/Module/Environment.h>
#include <AzCore/RTTI/BehaviorContext.h>
#include <AzCore/std/smart_ptr/make_shared.h>
#include <AzCore/Settings/SettingsRegistryMergeUtils.h>
#include <AzCore/StringFunc/StringFunc.h>
#include <AzCore/Utils/Utils.h>
#include <AzCore/Console/IConsole.h>
#include <AzCore/EBus/IEventScheduler.h>
#include <AzCore/Name/Name.h>
#include <AzCore/IO/SystemFile.h>

// AzFramework
#include <AzFramework/Components/CameraBus.h>
#include <AzFramework/Process/ProcessWatcher.h>
#include <AzFramework/ProjectManager/ProjectManager.h>
#include <AzFramework/Spawnable/RootSpawnableInterface.h>

// AzToolsFramework
#include <AzToolsFramework/ActionManager/ActionManagerSystemComponent.h>
#include <AzToolsFramework/Component/EditorComponentAPIBus.h>
#include <AzToolsFramework/Component/EditorLevelComponentAPIBus.h>
#include <AzToolsFramework/Editor/ActionManagerUtils.h>
#include <AzToolsFramework/UI/UICore/ProgressShield.hxx>
#include <AzToolsFramework/UI/UICore/WidgetHelpers.h>
#include <AzToolsFramework/ViewportSelection/EditorTransformComponentSelectionRequestBus.h>
#include <AzToolsFramework/API/EditorPythonConsoleBus.h>
#include <AzToolsFramework/API/EditorPythonRunnerRequestsBus.h>
#include <AzToolsFramework/API/ToolsApplicationAPI.h>
#include <AzToolsFramework/Entity/PrefabEditorEntityOwnershipInterface.h>
#include <AzToolsFramework/PythonTerminal/ScriptHelpDialog.h>
#include <AzToolsFramework/Viewport/LocalViewBookmarkLoader.h>

// AzQtComponents
#include <AzQtComponents/Components/StyleManager.h>
#include <AzQtComponents/Utilities/HandleDpiAwareness.h>
#include <AzQtComponents/Components/WindowDecorationWrapper.h>
#include <AzQtComponents/Utilities/QtPluginPaths.h>

// CryCommon
#include <CryCommon/ILevelSystem.h>

// Editor
#include "Settings.h"

#include "MainWindow.h"

#include "Core/QtEditorApplication.h"
#include "NewLevelDialog.h"
#include "LayoutConfigDialog.h"
#include "ViewManager.h"
#include "FileTypeUtils.h"
#include "PluginManager.h"

#include "IEditorImpl.h"
#include "StartupLogoDialog.h"
#include "DisplaySettings.h"
#include "GameEngine.h"

#include "StartupTraceHandler.h"
#include "ToolsConfigPage.h"
#include "WaitProgress.h"

#include "ToolBox.h"
#include "EditorPreferencesDialog.h"
#include "AnimationContext.h"

#include "GotoPositionDlg.h"

#include "ConsoleDialog.h"
#include "Controls/ConsoleSCB.h"

#include "ScopedVariableSetter.h"

#include "Util/3DConnexionDriver.h"
#include "Util/AutoDirectoryRestoreFileDialog.h"
#include "Util/EditorAutoLevelLoadTest.h"
#include <AzToolsFramework/PythonTerminal/ScriptHelpDialog.h>

#include "LevelFileDialog.h"
#include "LevelIndependentFileMan.h"
#include "WelcomeScreen/WelcomeScreenDialog.h"

#include "Controls/ReflectedPropertyControl/PropertyCtrl.h"
#include "Controls/ReflectedPropertyControl/ReflectedVar.h"

#include "EditorToolsApplication.h"

#include <AzToolsFramework/Undo/UndoSystem.h>


#if defined(AZ_PLATFORM_WINDOWS)
#include <AzFramework/API/ApplicationAPI_Platform.h>
#endif

#if AZ_TRAIT_OS_PLATFORM_APPLE
#include "WindowObserver_mac.h"
#endif

#include <AzCore/RTTI/BehaviorContext.h>

#include <AzFramework/Render/Intersector.h>

#include <AzCore/std/smart_ptr/make_shared.h>

static const char O3DEEditorClassName[] = "O3DEEditorClass";
static const char O3DEApplicationName[] = "O3DEApplication";

static AZ::EnvironmentVariable<bool> inEditorBatchMode = nullptr;

namespace Platform
{
    bool OpenUri(const QUrl& uri);
}

RecentFileList::RecentFileList()
{
    m_settings.beginGroup(QStringLiteral("Application"));
    m_settings.beginGroup(QStringLiteral("Recent File List"));

    ReadList();
}

void RecentFileList::Remove(int index)
{
    m_arrNames.removeAt(index);
}

void RecentFileList::Add(const QString& f)
{
    QString filename = QDir::toNativeSeparators(f);
    m_arrNames.removeAll(filename);
    m_arrNames.push_front(filename);
    while (m_arrNames.count() > Max)
    {
        m_arrNames.removeAt(Max);
    }
}

int RecentFileList::GetSize()
{
    return m_arrNames.count();
}

void RecentFileList::GetDisplayName(QString& name, int index, const QString& curDir)
{
    name = m_arrNames[index];

    const QDir cur(curDir);
    QDir fileDir(name); // actually pointing at file, first cdUp() gets us the parent dir
    while (fileDir.cdUp())
    {
        if (fileDir == cur)
        {
            name = cur.relativeFilePath(name);
            break;
        }
    }

    name = QDir::toNativeSeparators(name);
}

QString& RecentFileList::operator[](int index)
{
    return m_arrNames[index];
}

void RecentFileList::ReadList()
{
    m_arrNames.clear();

    for (int i = 1; i <= Max; ++i)
    {
        QString f = m_settings.value(QStringLiteral("File%1").arg(i)).toString();
        if (!f.isEmpty())
        {
            m_arrNames.push_back(f);
        }
    }
}

void RecentFileList::WriteList()
{
    m_settings.remove(QString());

    int i = 1;
    for (auto f : m_arrNames)
    {
        m_settings.setValue(QStringLiteral("File%1").arg(i++), f);
    }
}



#define ERROR_LEN 256


CCryDocManager::CCryDocManager()
{
}

CCrySingleDocTemplate* CCryDocManager::SetDefaultTemplate(CCrySingleDocTemplate* pNew)
{
    CCrySingleDocTemplate* pOld = m_pDefTemplate;
    m_pDefTemplate = pNew;
    m_templateList.clear();
    m_templateList.push_back(m_pDefTemplate);
    return pOld;
}
// Copied from MFC to get rid of the silly ugly unoverridable doc-type pick dialog
void CCryDocManager::OnFileNew()
{
    assert(m_pDefTemplate != nullptr);

    m_pDefTemplate->OpenDocumentFile(nullptr);
    // if returns NULL, the user has already been alerted
}
bool CCryDocManager::DoPromptFileName(QString& fileName, [[maybe_unused]] UINT nIDSTitle,
    [[maybe_unused]] DWORD lFlags, bool bOpenFileDialog, [[maybe_unused]] CDocTemplate* pTemplate)
{
    CLevelFileDialog levelFileDialog(bOpenFileDialog);
    levelFileDialog.show();
    levelFileDialog.adjustSize();

    if (levelFileDialog.exec() == QDialog::Accepted)
    {
        fileName = levelFileDialog.GetFileName();
        return true;
    }

    return false;
}
CCryEditDoc* CCryDocManager::OpenDocumentFile(const char* filename, bool addToMostRecentFileList, COpenSameLevelOptions openSameLevelOptions)
{
    assert(filename != nullptr);

    const bool reopenIfSame = openSameLevelOptions == COpenSameLevelOptions::ReopenLevelIfSame;
    // find the highest confidence
    auto pos = m_templateList.begin();
    CCrySingleDocTemplate::Confidence bestMatch = CCrySingleDocTemplate::noAttempt;
    CCrySingleDocTemplate* pBestTemplate = nullptr;
    CCryEditDoc* pOpenDocument = nullptr;

    if (filename[0] == '\"')
    {
        ++filename;
    }
    QString szPath = QString::fromUtf8(filename);
    if (szPath.endsWith('"'))
    {
        szPath.remove(szPath.length() - 1, 1);
    }

    while (pos != m_templateList.end())
    {
        auto pTemplate = *(pos++);

        CCrySingleDocTemplate::Confidence match;
        assert(pOpenDocument == nullptr);
        match = pTemplate->MatchDocType(szPath.toUtf8().data(), pOpenDocument);
        if (match > bestMatch)
        {
            bestMatch = match;
            pBestTemplate = pTemplate;
        }
        if (match == CCrySingleDocTemplate::yesAlreadyOpen)
        {
            break;      // stop here
        }
    }

    if (!reopenIfSame && pOpenDocument != nullptr)
    {
        return pOpenDocument;
    }

    if (pBestTemplate == nullptr)
    {
        QMessageBox::critical(AzToolsFramework::GetActiveWindow(), QString(), QObject::tr("Failed to open document."));
        return nullptr;
    }

    return pBestTemplate->OpenDocumentFile(szPath.toUtf8().data(), addToMostRecentFileList, false);
}

//////////////////////////////////////////////////////////////////////////////
// CCryEditApp

#undef ON_COMMAND
#define ON_COMMAND(id, method) \
    MainWindow::instance()->GetActionManager()->RegisterActionHandler(id, this, &CCryEditApp::method);

#undef ON_COMMAND_RANGE
#define ON_COMMAND_RANGE(idStart, idEnd, method) \
    for (int i = idStart; i <= idEnd; ++i) \
        ON_COMMAND(i, method);

AZ_CVAR_EXTERNED(bool, ed_previewGameInFullscreen_once);

CCryEditApp* CCryEditApp::s_currentInstance = nullptr;
/////////////////////////////////////////////////////////////////////////////
// CCryEditApp construction
CCryEditApp::CCryEditApp()
{
    s_currentInstance = this;

    m_sPreviewFile[0] = 0;

    AzFramework::AssetSystemInfoBus::Handler::BusConnect();
    AzFramework::AssetSystemStatusBus::Handler::BusConnect();

    m_disableIdleProcessingCounter = 0;
    EditorIdleProcessingBus::Handler::BusConnect();
}

//////////////////////////////////////////////////////////////////////////
CCryEditApp::~CCryEditApp()
{
    EditorIdleProcessingBus::Handler::BusDisconnect();
    AzFramework::AssetSystemStatusBus::Handler::BusDisconnect();
    AzFramework::AssetSystemInfoBus::Handler::BusDisconnect();
    s_currentInstance = nullptr;
}

CCryEditApp* CCryEditApp::instance()
{
    return s_currentInstance;
}

class CEditCommandLineInfo
{
public:
    bool m_bTest = false;
    bool m_bAutoLoadLevel = false;

    bool m_bConsoleMode = false;
    bool m_bNullRenderer = false;
    bool m_bDeveloperMode = false;
    bool m_bRunPythonScript = false;
    bool m_bRunPythonTestScript = false;
    bool m_bShowVersionInfo = false;
    QString m_strFileName;
    QString m_appRoot;
    QString m_logFile;
    QString m_pythonArgs;
    QString m_pythonTestCase;
    QString m_execFile;
    QString m_execLineCmd;

    bool m_bSkipWelcomeScreenDialog = false;
    bool m_bAutotestMode = false;

    struct CommandLineStringOption
    {
        QString name;
        QString description;
        QString valueName;
    };

    CEditCommandLineInfo()
    {
        bool dummy;
        QCommandLineParser parser;
        parser.addHelpOption();
        parser.setSingleDashWordOptionMode(QCommandLineParser::ParseAsLongOptions);
        parser.setApplicationDescription(QObject::tr("O3DE Editor"));
        // nsDocumentRevisionDebugMode is an argument that the macOS system passed into an App bundle that is being debugged.
        // Need to include it here so that Qt argument parser does not error out.
        bool nsDocumentRevisionsDebugMode = false;
        const std::vector<std::pair<QString, bool&> > options = {
            { "test", m_bTest },
            { "auto_level_load", m_bAutoLoadLevel },
            { "BatchMode", m_bConsoleMode },
            { "NullRenderer", m_bNullRenderer },
            { "devmode", m_bDeveloperMode },
            { "runpython", m_bRunPythonScript },
            { "runpythontest", m_bRunPythonTestScript },
            { "version", m_bShowVersionInfo },
            { "NSDocumentRevisionsDebugMode", nsDocumentRevisionsDebugMode},
            { "skipWelcomeScreenDialog", m_bSkipWelcomeScreenDialog},
            { "autotest_mode", m_bAutotestMode},
            { "regdumpall", dummy },
            { "attach-debugger", dummy }, // Attaches a debugger for the current application
            { "wait-for-debugger", dummy }, // Waits until a debugger is attached to the current application
        };

        QString dummyString;
        const std::vector<std::pair<CommandLineStringOption, QString&> > stringOptions = {
            {{"logfile", "File name of the log file to write out to.", "logfile"}, m_logFile},
            {{"runpythonargs", "Command-line argument string to pass to the python script if --runpython or --runpythontest was used.", "runpythonargs"}, m_pythonArgs},
            {{"pythontestcase", "Test case name of python test script if --runpythontest was used.", "pythontestcase"}, m_pythonTestCase},
            {{"exec", "cfg file to run on startup, used for systems like automation", "exec"}, m_execFile},
            {{"rhi", "Command-line argument to force which rhi to use", "rhi"}, dummyString },
            {{"rhi-device-validation", "Command-line argument to configure rhi validation", "rhi-device-validation"}, dummyString },
            {{"exec_line", "command to run on startup, used for systems like automation", "exec_line"}, m_execLineCmd},
            {{"regset", "Command-line argument to override settings registry values", "regset"}, dummyString},
            {{"regremove", "Deletes a value within the global settings registry at the JSON pointer path @key", "regremove"}, dummyString},
            {{"regdump", "Sets a value within the global settings registry at the JSON pointer path @key with value of @value", "regdump"}, dummyString},
            {{"project-path", "Supplies the path to the project that the Editor should use", "project-path"}, dummyString},
            {{"engine-path", "Supplies the path to the engine", "engine-path"}, dummyString},
            {{"project-cache-path", "Path to the project cache", "project-cache-path"}, dummyString},
            {{"project-user-path", "Path to the project user path", "project-user-path"}, dummyString},
            {{"project-log-path", "Path to the project log path", "project-log-path"}, dummyString}
            // add dummy entries here to prevent QCommandLineParser error-ing out on cmd line args that will be parsed later
        };


        parser.addPositionalArgument("file", QCoreApplication::translate("main", "file to open"));
        for (const auto& option : options)
        {
            parser.addOption(QCommandLineOption(option.first));
        }

        for (const auto& option : stringOptions)
        {
            parser.addOption(QCommandLineOption(option.first.name, option.first.description, option.first.valueName));
        }

        QStringList args = qApp->arguments();

#ifdef Q_OS_WIN32
        for (QString& arg : args)
        {
            if (!arg.isEmpty() && arg[0] == '/')
            {
                arg[0] = '-'; // QCommandLineParser only supports - and -- prefixes
            }
        }
#endif

        if (!parser.parse(args))
        {
            AZ_TracePrintf("QT CommandLine Parser", "QT command line parsing warned with message %s."
                " Has the QCommandLineParser had these options added to it", parser.errorText().toUtf8().constData());
        }

        // Get boolean options
        const int numOptions = static_cast<int>(options.size());
        for (int i = 0; i < numOptions; ++i)
        {
            options[i].second = parser.isSet(options[i].first);
        }

        // Get string options
        for (auto& option : stringOptions)
        {
            option.second = parser.value(option.first.valueName);
        }

        const QStringList positionalArgs = parser.positionalArguments();

        if (!positionalArgs.isEmpty())
        {
            m_strFileName = positionalArgs.first();
        }
    }
};

struct SharedData
{
    bool raise = false;
    char text[_MAX_PATH];
};
/////////////////////////////////////////////////////////////////////////////
// CTheApp::FirstInstance
//      FirstInstance checks for an existing instance of the application.
//      If one is found, it is activated.
//
//      This function uses a technique similar to that described in KB
//      article Q141752 to locate the previous instance of the application. .
bool CCryEditApp::FirstInstance(bool bForceNewInstance)
{
    QSystemSemaphore sem(QString(O3DEApplicationName) + "_sem", 1);
    sem.acquire();
    {
        FixDanglingSharedMemory(O3DEEditorClassName);
    }
    sem.release();
    m_mutexApplication = new QSharedMemory(O3DEEditorClassName);
    if (!m_mutexApplication->create(sizeof(SharedData)) && !bForceNewInstance)
    {
        m_mutexApplication->attach();
        // another instance is already running - activate it
        sem.acquire();
        SharedData* data = reinterpret_cast<SharedData*>(m_mutexApplication->data());
        data->raise = true;

        if (m_bPreviewMode)
        {
            // IF in preview mode send this window copy data message to load new preview file.
            azstrcpy(data->text, MAX_PATH, m_sPreviewFile);
        }
        return false;
    }
    else
    {
        m_mutexApplication->attach();
        // this is the first instance
        sem.acquire();
        ::memset(m_mutexApplication->data(), 0, m_mutexApplication->size());
        sem.release();
        QTimer* t = new QTimer(this);
        connect(t, &QTimer::timeout, this, [this]() {
            QSystemSemaphore sem(QString(O3DEApplicationName) + "_sem", 1);
            sem.acquire();
            SharedData* data = reinterpret_cast<SharedData*>(m_mutexApplication->data());
            QString preview = QString::fromLatin1(data->text);
            if (data->raise)
            {
                QWidget* w = MainWindow::instance();
                w->setWindowState((w->windowState() & ~Qt::WindowMinimized) | Qt::WindowActive);
                w->raise();
                w->activateWindow();
                data->raise = false;
            }
            if (!preview.isEmpty())
            {
                // Load this file
                LoadFile(preview);
                data->text[0] = 0;
            }
            sem.release();
        });
        t->start(1000);

        return true;
    }
    return true;
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnFileSave()
{
    if (m_savingLevel)
    {
        return;
    }

    const QScopedValueRollback<bool> rollback(m_savingLevel, true);

    auto* prefabIntegrationInterface = AZ::Interface<AzToolsFramework::Prefab::PrefabIntegrationInterface>::Get();
    AZ_Assert(prefabIntegrationInterface != nullptr, "PrefabIntegrationInterface is not found.");

    prefabIntegrationInterface->SaveCurrentPrefab();

    // when attempting to save, update the last known location using the active camera transform
    AzToolsFramework::StoreViewBookmarkLastKnownLocationFromActiveCamera();
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnUpdateDocumentReady(QAction* action)
{
    action->setEnabled(GetIEditor()
        && GetIEditor()->GetDocument()
        && GetIEditor()->GetDocument()->IsDocumentReady()
        && !m_creatingNewLevel
        && !m_openingLevel
        && !m_savingLevel);
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnUpdateFileOpen(QAction* action)
{
    action->setEnabled(!m_creatingNewLevel && !m_openingLevel && !m_savingLevel);
}

bool CCryEditApp::ShowEnableDisableGemDialog(const QString& title, const QString& message)
{
    const QString informativeMessage = QObject::tr("Please follow the instructions <a href=\"https://www.o3de.org/docs/user-guide/project-config/add-remove-gems/\">here</a>, after which the Editor will be re-launched automatically.");

    QMessageBox box(AzToolsFramework::GetActiveWindow());
    box.addButton(QObject::tr("Continue"), QMessageBox::AcceptRole);
    box.addButton(QObject::tr("Back"), QMessageBox::RejectRole);
    box.setWindowTitle(title);
    box.setText(message);
    box.setInformativeText(informativeMessage);
    box.setWindowFlags(box.windowFlags() & ~Qt::WindowContextHelpButtonHint);
    if (box.exec() == QMessageBox::AcceptRole)
    {
        // Called from a modal dialog with the main window as its parent. Best not to close the main window while the dialog is still active.
        QTimer::singleShot(0, MainWindow::instance(), &MainWindow::close);
        return true;
    }

    return false;
}

QString CCryEditApp::ShowWelcomeDialog()
{
    WelcomeScreenDialog wsDlg(MainWindow::instance());
    wsDlg.SetRecentFileList(GetRecentFileList());
    wsDlg.exec();
    QString levelName = wsDlg.GetLevelPath();
    return levelName;
}

//////////////////////////////////////////////////////////////////////////
// Needed to work with custom memory manager.
//////////////////////////////////////////////////////////////////////////

CCryEditDoc* CCrySingleDocTemplate::OpenDocumentFile(const char* lpszPathName, bool bMakeVisible /*= true*/)
{
    return OpenDocumentFile(lpszPathName, true, bMakeVisible);
}

CCryEditDoc* CCrySingleDocTemplate::OpenDocumentFile(const char* lpszPathName, bool addToMostRecentFileList, [[maybe_unused]] bool bMakeVisible)
{
    CCryEditDoc* pCurDoc = GetIEditor()->GetDocument();

    if (pCurDoc)
    {
        if (!pCurDoc->SaveModified())
        {
            return nullptr;
        }
    }

    if (!pCurDoc)
    {
        pCurDoc = qobject_cast<CCryEditDoc*>(m_documentClass->newInstance());
        if (pCurDoc == nullptr)
            return nullptr;
        pCurDoc->setParent(this);
    }

    pCurDoc->SetModifiedFlag(false);
    if (lpszPathName == nullptr)
    {
        pCurDoc->SetTitle(tr("Untitled"));
        pCurDoc->OnNewDocument();
    }
    else
    {
        pCurDoc->OnOpenDocument(lpszPathName);
        pCurDoc->SetPathName(lpszPathName);
        if (addToMostRecentFileList)
        {
            CCryEditApp::instance()->AddToRecentFileList(lpszPathName);
        }
    }

    return pCurDoc;
}

CCrySingleDocTemplate::Confidence CCrySingleDocTemplate::MatchDocType(const char* lpszPathName, CCryEditDoc*& rpDocMatch)
{
    assert(lpszPathName != nullptr);
    rpDocMatch = nullptr;

    // go through all documents
    CCryEditDoc* pDoc = GetIEditor()->GetDocument();
    if (pDoc)
    {
        QString prevPathName = pDoc->GetLevelPathName();
        // all we need to know here is whether it is the same file as before.
        if (!prevPathName.isEmpty())
        {
            // QFileInfo is guaranteed to return true iff the two paths refer to the same path.
            if (QFileInfo(prevPathName) == QFileInfo(QString::fromUtf8(lpszPathName)))
            {
                // already open
                rpDocMatch = pDoc;
                return yesAlreadyOpen;
            }
        }
    }

    // see if it matches our default suffix
    const QString strFilterExt = EditorUtils::LevelFile::GetDefaultFileExtension();
    const QString strOldFilterExt = EditorUtils::LevelFile::GetOldCryFileExtension();

    // see if extension matches
    assert(strFilterExt[0] == '.');
    QString strDot = "." + Path::GetExt(lpszPathName);
    if (!strDot.isEmpty())
    {
        if(strDot == strFilterExt || strDot == strOldFilterExt)
        {
            return yesAttemptNative; // extension matches, looks like ours
        }
    }
    // otherwise we will guess it may work
    return yesAttemptForeign;
}

/////////////////////////////////////////////////////////////////////////////
namespace
{
    AZStd::mutex g_splashScreenStateLock;
    enum ESplashScreenState
    {
        eSplashScreenState_Init, eSplashScreenState_Started, eSplashScreenState_Destroy
    };
    ESplashScreenState g_splashScreenState = eSplashScreenState_Init;
    IInitializeUIInfo* g_pInitializeUIInfo = nullptr;
    QWidget* g_splashScreen = nullptr;
}

QString FormatVersion([[maybe_unused]] const SFileVersion& v)
{
    if (QObject::tr("%1").arg(O3DE_BUILD_VERSION) == "0")
    {
        return QObject::tr("Development Build");
    }

    return QObject::tr("Version %1").arg(O3DE_BUILD_VERSION);
}

QString FormatRichTextCopyrightNotice()
{
    // copyright symbol is HTML Entity = &#xA9;
    QString copyrightHtmlSymbol = "&#xA9;";
    QString copyrightString = QObject::tr("Copyright %1 Contributors to the Open 3D Engine Project");

    return copyrightString.arg(copyrightHtmlSymbol);
}

void CCryEditApp::AssetSystemWaiting()
{
    QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
}

/////////////////////////////////////////////////////////////////////////////
void CCryEditApp::ShowSplashScreen(CCryEditApp* app)
{
    g_splashScreenStateLock.lock();

    CStartupLogoDialog* splashScreen = new CStartupLogoDialog(CStartupLogoDialog::Loading, FormatVersion(app->m_pEditor->GetFileVersion()), FormatRichTextCopyrightNotice());

    g_pInitializeUIInfo = splashScreen;
    g_splashScreen = splashScreen;
    g_splashScreenState = eSplashScreenState_Started;

    g_splashScreenStateLock.unlock();

    splashScreen->show();

    QObject::connect(splashScreen, &QObject::destroyed, splashScreen, [=]
    {
        AZStd::scoped_lock lock(g_splashScreenStateLock);
        g_pInitializeUIInfo = nullptr;
        g_splashScreen = nullptr;
    });
}

/////////////////////////////////////////////////////////////////////////////
void CCryEditApp::CreateSplashScreen()
{
    if (!m_bConsoleMode && !IsInAutotestMode())
    {
        // Create startup output splash
        ShowSplashScreen(this);

        GetIEditor()->Notify(eNotify_OnSplashScreenCreated);
    }
    else
    {
        // Create console
        m_pConsoleDialog = new CConsoleDialog();
        m_pConsoleDialog->show();

        g_pInitializeUIInfo = m_pConsoleDialog;
    }
}

/////////////////////////////////////////////////////////////////////////////
void CCryEditApp::CloseSplashScreen()
{
    if (CStartupLogoDialog::instance())
    {
        delete CStartupLogoDialog::instance();
        g_splashScreenStateLock.lock();
        g_splashScreenState = eSplashScreenState_Destroy;
        g_splashScreenStateLock.unlock();
    }

    GetIEditor()->Notify(eNotify_OnSplashScreenDestroyed);
}

/////////////////////////////////////////////////////////////////////////////
void CCryEditApp::OutputStartupMessage(QString str)
{
    g_splashScreenStateLock.lock();
    if (g_pInitializeUIInfo)
    {
        g_pInitializeUIInfo->SetInfoText(str.toUtf8().data());
    }
    g_splashScreenStateLock.unlock();
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::InitFromCommandLine(CEditCommandLineInfo& cmdInfo)
{
    m_bConsoleMode |= cmdInfo.m_bConsoleMode;
    inEditorBatchMode = AZ::Environment::CreateVariable<bool>("InEditorBatchMode", m_bConsoleMode);

    m_bTestMode |= cmdInfo.m_bTest;

    m_bSkipWelcomeScreenDialog = cmdInfo.m_bSkipWelcomeScreenDialog || !cmdInfo.m_execFile.isEmpty() || !cmdInfo.m_execLineCmd.isEmpty() || cmdInfo.m_bAutotestMode;
    m_bRunPythonTestScript = cmdInfo.m_bRunPythonTestScript;
    m_bRunPythonScript = cmdInfo.m_bRunPythonScript || cmdInfo.m_bRunPythonTestScript;
    m_execFile = cmdInfo.m_execFile;
    m_execLineCmd = cmdInfo.m_execLineCmd;
    m_bAutotestMode = cmdInfo.m_bAutotestMode || cmdInfo.m_bConsoleMode;

    // Do we have a passed filename ?
    if (!cmdInfo.m_strFileName.isEmpty())
    {
        if (!m_bRunPythonScript && IsPreviewableFileType(cmdInfo.m_strFileName.toUtf8().constData()))
        {
            m_bPreviewMode = true;
            azstrncpy(m_sPreviewFile, _MAX_PATH, cmdInfo.m_strFileName.toUtf8().constData(), _MAX_PATH);
        }
    }

    if (cmdInfo.m_bAutoLoadLevel)
    {
        m_bLevelLoadTestMode = true;
        gEnv->bNoAssertDialog = true;
        CEditorAutoLevelLoadTest::Instance();
    }
}

/////////////////////////////////////////////////////////////////////////////
AZ::Outcome<void, AZStd::string> CCryEditApp::InitGameSystem(HWND hwndForInputSystem)
{
    CGameEngine* pGameEngine = new CGameEngine;

    AZ::Outcome<void, AZStd::string> initOutcome = pGameEngine->Init(m_bPreviewMode, m_bTestMode, qApp->arguments().join(" ").toUtf8().data(), g_pInitializeUIInfo, hwndForInputSystem);
    if (!initOutcome.IsSuccess())
    {
        return initOutcome;
    }

    AZ_Assert(pGameEngine, "Game engine initialization failed, but initOutcome returned success.");

    m_pEditor->SetGameEngine(pGameEngine);

    // needs to be called after CrySystem has been loaded.
    gSettings.LoadDefaultGamePaths();

    return AZ::Success();
}

/////////////////////////////////////////////////////////////////////////////
bool CCryEditApp::CheckIfAlreadyRunning()
{
    bool bForceNewInstance = false;

    if (!m_bPreviewMode)
    {
        FixDanglingSharedMemory(O3DEApplicationName);
        m_mutexApplication = new QSharedMemory(O3DEApplicationName);
        if (!m_mutexApplication->create(16))
        {
            // Don't prompt the user in non-interactive export mode.  Instead, default to allowing multiple instances to
            // run simultaneously, so that multiple level exports can be run in parallel on the same machine.
            // NOTE:  If you choose to do this, be sure to export *different* levels, since nothing prevents multiple runs
            // from trying to write to the same level at the same time.
            // If we're running interactively, let's ask and make sure the user actually intended to do this.
            if (QMessageBox::question(AzToolsFramework::GetActiveWindow(), QObject::tr("Too many apps"), QObject::tr("There is already an Open 3D Engine application running\nDo you want to start another one?")) != QMessageBox::Yes)
            {
                return false;
            }

            bForceNewInstance = true;
        }
    }

    if (!FirstInstance(bForceNewInstance))
    {
        return false;
    }

    return true;
}

/////////////////////////////////////////////////////////////////////////////
bool CCryEditApp::InitGame()
{
    if (!m_bPreviewMode)
    {
        AZ::IO::FixedMaxPathString projectPath = AZ::Utils::GetProjectPath();
        Log((QString("project_path = %1").arg(!projectPath.empty() ? projectPath.c_str() : "<not set>")).toUtf8().data());

        ICVar* pVar = gEnv->pConsole->GetCVar("sys_localization_folder");
        const char* sLocalizationFolder = pVar ? pVar->GetString() : nullptr;
        Log((QString("sys_localization_folder = ") + (sLocalizationFolder && sLocalizationFolder[0] ? sLocalizationFolder : "<not set>")).toUtf8().data());

        OutputStartupMessage("Starting Game...");

        if (!GetIEditor()->GetGameEngine()->InitGame(nullptr))
        {
            return false;
        }
    }

    //////////////////////////////////////////////////////////////////////////
    // Apply settings post engine initialization.
    GetIEditor()->GetDisplaySettings()->PostInitApply();
    gSettings.PostInitApply();
    return true;
}

/////////////////////////////////////////////////////////////////////////////
void CCryEditApp::InitPlugins()
{
    OutputStartupMessage("Loading Plugins...");
    // Load the plugins
    {
        GetIEditor()->LoadPlugins();

#if defined(AZ_PLATFORM_WINDOWS)
        C3DConnexionDriver* p3DConnexionDriver = new C3DConnexionDriver;
        GetIEditor()->GetPluginManager()->RegisterPlugin(0, p3DConnexionDriver);
#endif
    }
}

////////////////////////////////////////////////////////////////////////////
// Be careful when calling this function: it should be called after
// everything else has finished initializing, otherwise, certain things
// aren't set up yet. If in doubt, wrap it in a QTimer::singleShot(0ms);
void CCryEditApp::InitLevel(const CEditCommandLineInfo& cmdInfo)
{
    const char* defaultExtension = EditorUtils::LevelFile::GetDefaultFileExtension();
    const char* oldExtension = EditorUtils::LevelFile::GetOldCryFileExtension();

    if (m_bPreviewMode)
    {
        // Load geometry object.
        if (!cmdInfo.m_strFileName.isEmpty())
        {
            LoadFile(cmdInfo.m_strFileName);
        }
    }
    else if ((cmdInfo.m_strFileName.endsWith(defaultExtension, Qt::CaseInsensitive))
            || (cmdInfo.m_strFileName.endsWith(oldExtension, Qt::CaseInsensitive)))
    {
        auto pDocument = OpenDocumentFile(cmdInfo.m_strFileName.toUtf8().constData());
        if (pDocument)
        {
            GetIEditor()->SetModifiedFlag(false);
            GetIEditor()->SetModifiedModule(eModifiedNothing);
        }
    }
    else
    {
        //////////////////////////////////////////////////////////////////////////
        //It can happen that if you are switching between projects and you have auto load set that
        //you could inadvertently load the wrong project and not know it, you would think you are editing
        //one level when in fact you are editing the old one. This can happen if both projects have the same
        //relative path... which is often the case when branching.
        // Ex. D:\cryengine\dev\ gets branched to D:\cryengine\branch\dev
        // Now you have gamesdk in both roots and therefore GameSDK\Levels\Singleplayer\Forest in both
        // If you execute the branch the m_pRecentFileList will be an absolute path to the old gamesdk,
        // then if auto load is set simply takes the old level and loads it in the new branch...
        //I would question ever trying to load a level not in our gamesdk, what happens when there are things that
        //an not exist in the level when built in a different gamesdk.. does it erase them, most likely, then you
        //just screwed up the level for everyone in the other gamesdk...
        //So if we are auto loading a level outside our current gamesdk we should act as though the flag
        //was unset and pop the dialog which should be in the correct location. This is not fool proof, but at
        //least this its a compromise that doesn't automatically do something you probably shouldn't.
        bool autoloadLastLevel = gSettings.bAutoloadLastLevelAtStartup;
        if (autoloadLastLevel
            && GetRecentFileList()
            && GetRecentFileList()->GetSize())
        {
            QString gamePath = Path::GetEditingGameDataFolder().c_str();
            Path::ConvertSlashToBackSlash(gamePath);
            gamePath = Path::ToUnixPath(gamePath.toLower());
            gamePath = Path::AddSlash(gamePath);

            QString fullPath = GetRecentFileList()->m_arrNames[0];
            Path::ConvertSlashToBackSlash(fullPath);
            fullPath = Path::ToUnixPath(fullPath.toLower());
            fullPath = Path::AddSlash(fullPath);

            if (fullPath.indexOf(gamePath, 0) != 0)
            {
                autoloadLastLevel = false;
            }
        }
        //////////////////////////////////////////////////////////////////////////

        QString levelName;
        bool isLevelNameValid = false;
        bool doLevelNeedLoading = true;
        const bool runningPythonScript = cmdInfo.m_bRunPythonScript || cmdInfo.m_bRunPythonTestScript;

        AZ::EBusLogicalResult<bool, AZStd::logical_or<bool> > skipStartupUIProcess(false);
        AzToolsFramework::EditorEvents::Bus::BroadcastResult(
            skipStartupUIProcess, &AzToolsFramework::EditorEvents::Bus::Events::SkipEditorStartupUI);

        if (!skipStartupUIProcess.value)
        {
            do
            {
                isLevelNameValid = false;
                doLevelNeedLoading = true;
                if (gSettings.bShowDashboardAtStartup
                    && !runningPythonScript
                    && !m_bConsoleMode
                    && !m_bSkipWelcomeScreenDialog
                    && !m_bPreviewMode
                    && !autoloadLastLevel)
                {
                    levelName = ShowWelcomeDialog();
                }
                else if (autoloadLastLevel
                         && GetRecentFileList()
                         && GetRecentFileList()->GetSize())
                {
                    levelName = GetRecentFileList()->m_arrNames[0];
                }

                if (levelName.isEmpty())
                {
                    break;
                }
                if (levelName == "new")
                {
                    //implies that the user has clicked the create new level option
                    bool wasCreateLevelOperationCancelled = false;
                    bool isNewLevelCreationSuccess = false;
                    // This will show the new level dialog until a valid input has been entered by the user or until the user click cancel
                    while (!isNewLevelCreationSuccess && !wasCreateLevelOperationCancelled)
                    {
                        isNewLevelCreationSuccess = CreateLevel(wasCreateLevelOperationCancelled);
                        if (isNewLevelCreationSuccess == true)
                        {
                            doLevelNeedLoading = false;
                            isLevelNameValid = true;
                        }
                    }
                    ;
                }
                else
                {
                    //implies that the user wants to open an existing level
                    doLevelNeedLoading = true;
                    isLevelNameValid = true;
                }
            } while (!isLevelNameValid);// if we reach here and levelName is not valid ,it implies that the user has clicked cancel on the create new level dialog

            // load level
            if (doLevelNeedLoading && !levelName.isEmpty())
            {
                if (!CFileUtil::Exists(levelName, false))
                {
                    QMessageBox::critical(AzToolsFramework::GetActiveWindow(), QObject::tr("Missing level"), QObject::tr("Failed to auto-load last opened level. Level file does not exist:\n\n%1").arg(levelName));
                    return;
                }

                QString str;
                str = tr("Loading level %1 ...").arg(levelName);
                OutputStartupMessage(str);

                OpenDocumentFile(levelName.toUtf8().data());
            }
        }
    }
}

/////////////////////////////////////////////////////////////////////////////
bool CCryEditApp::InitConsole()
{
    // Execute command from cmdline -exec_line if applicable
    if (!m_execLineCmd.isEmpty())
    {
        gEnv->pConsole->ExecuteString(QString("%1").arg(m_execLineCmd).toLocal8Bit());
    }

    // Execute cfg from cmdline -exec if applicable
    if (!m_execFile.isEmpty())
    {
        gEnv->pConsole->ExecuteString(QString("exec %1").arg(m_execFile).toLocal8Bit());
    }

    // Execute special configs.
    gEnv->pConsole->ExecuteString("exec editor_autoexec.cfg");
    gEnv->pConsole->ExecuteString("exec editor.cfg");
    gEnv->pConsole->ExecuteString("exec user.cfg");

    GetISystem()->ExecuteCommandLine();

    return true;
}

/////////////////////////////////////////////////////////////////////////////

void CCryEditApp::CompileCriticalAssets() const
{
    // regardless of what is set in the bootstrap wait for AP to be ready
    // wait a maximum of 100 milliseconds and pump the system event loop until empty
    struct AssetsInQueueNotification
        : public AzFramework::AssetSystemInfoBus::Handler
    {
        void CountOfAssetsInQueue(const int& count) override
        {
            CCryEditApp::OutputStartupMessage(QString("Asset Processor working... %1 jobs remaining.").arg(count));
        }
    };
    AssetsInQueueNotification assetsInQueueNotifcation;
    assetsInQueueNotifcation.BusConnect();
    bool ready{};
    while (!ready)
    {
        AzFramework::AssetSystemRequestBus::BroadcastResult(ready, &AzFramework::AssetSystemRequestBus::Events::WaitUntilAssetProcessorReady, AZStd::chrono::milliseconds(100));
        if (!ready)
        {
            AzFramework::ApplicationRequests::Bus::Broadcast(&AzFramework::ApplicationRequests::PumpSystemEventLoopUntilEmpty);
        }
    }
    assetsInQueueNotifcation.BusDisconnect();

    AZ_TracePrintf("Editor", "CriticalAssetsCompiled\n");

    // Signal the "CriticalAssetsCompiled" lifecycle event
    // Also reload the "assetcatalog.xml" if it exists
    if (auto settingsRegistry = AZ::SettingsRegistry::Get(); settingsRegistry != nullptr)
    {
        // Reload the assetcatalog.xml at this point again
        // Start Monitoring Asset changes over the network and load the AssetCatalog
        auto LoadCatalog = [settingsRegistry](AZ::Data::AssetCatalogRequests* assetCatalogRequests)
        {
            if (AZ::IO::FixedMaxPath assetCatalogPath;
                settingsRegistry->Get(assetCatalogPath.Native(), AZ::SettingsRegistryMergeUtils::FilePathKey_CacheRootFolder))
            {
                assetCatalogPath /= "assetcatalog.xml";
                assetCatalogRequests->LoadCatalog(assetCatalogPath.c_str());
            }
        };

        CCryEditApp::OutputStartupMessage(QString("Loading Asset Catalog..."));

        AZ::Data::AssetCatalogRequestBus::Broadcast(AZStd::move(LoadCatalog));

        // Only signal the event *after* the asset catalog has been loaded.
        AZ::ComponentApplicationLifecycle::SignalEvent(*settingsRegistry, "CriticalAssetsCompiled", R"({})");
    }

    CCryEditApp::OutputStartupMessage(QString("Asset Processor is now ready."));
}

bool CCryEditApp::ConnectToAssetProcessor() const
{
    bool connectedToAssetProcessor = false;

    // 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
    AZStd::chrono::seconds connectTimeout(3);
    // Initialize the launchAssetProcessorTimeout to 15 seconds by default and check the settings registry for an override
    AZStd::chrono::seconds launchAssetProcessorTimeout(15);
    AZ::SettingsRegistryInterface* settingsRegistry = AZ::SettingsRegistry::Get();
    if (settingsRegistry)
    {
        AZ::s64 timeoutValue{};
        if (AZ::SettingsRegistryMergeUtils::PlatformGet(*settingsRegistry, timeoutValue,
            AZ::SettingsRegistryMergeUtils::BootstrapSettingsRootKey, "connect_ap_timeout"))
        {
            connectTimeout = AZStd::chrono::seconds(timeoutValue);
        }

        // Reset timeout integer
        timeoutValue = {};
        if (AZ::SettingsRegistryMergeUtils::PlatformGet(*settingsRegistry, timeoutValue,
            AZ::SettingsRegistryMergeUtils::BootstrapSettingsRootKey, "launch_ap_timeout"))
        {
            launchAssetProcessorTimeout = AZStd::chrono::seconds(timeoutValue);
        }
    }

    CCryEditApp::OutputStartupMessage(QString("Connecting to Asset Processor... "));

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

    connectionSettings.m_launchAssetProcessorOnFailedConnection = true;
    connectionSettings.m_connectionDirection = AzFramework::AssetSystem::ConnectionSettings::ConnectionDirection::ConnectToAssetProcessor;
    connectionSettings.m_connectionIdentifier = AzFramework::AssetSystem::ConnectionIdentifiers::Editor;
    connectionSettings.m_loggingCallback = [](AZStd::string_view logData)
    {
        CCryEditApp::OutputStartupMessage(QString::fromUtf8(logData.data(), aznumeric_cast<int>(logData.size())));
    };

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

    if (connectedToAssetProcessor)
    {
        AZ_TracePrintf("Editor", "Connected to Asset Processor\n");
        CCryEditApp::OutputStartupMessage(QString("Connected to Asset Processor"));
        CompileCriticalAssets();
        return true;
    }

    AZ_TracePrintf("Editor", "Failed to connect to Asset Processor\n");
    CCryEditApp::OutputStartupMessage(QString("Failed to connect to Asset Processor"));
    return false;
}

//! This handles the normal logging of Python output in the Editor by outputting
//! the data to both the Editor Console and the Editor.log file
struct CCryEditApp::PythonOutputHandler
    : public AzToolsFramework::EditorPythonConsoleNotificationBus::Handler
{
    PythonOutputHandler()
    {
        AzToolsFramework::EditorPythonConsoleNotificationBus::Handler::BusConnect();
    }

    ~PythonOutputHandler() override
    {
        AzToolsFramework::EditorPythonConsoleNotificationBus::Handler::BusDisconnect();
    }

    int GetOrder() override
    {
        return 0;
    }

    void OnTraceMessage([[maybe_unused]] AZStd::string_view message) override
    {
        AZ_TracePrintf("python_test", "%.*s", static_cast<int>(message.size()), message.data());
    }

    void OnErrorMessage([[maybe_unused]] AZStd::string_view message) override
    {
        AZ_Error("python_test", false, "%.*s", static_cast<int>(message.size()), message.data());
    }

    void OnExceptionMessage([[maybe_unused]] AZStd::string_view message) override
    {
        AZ_Error("python_test", false, "EXCEPTION: %.*s", static_cast<int>(message.size()), message.data());
    }
};

//! Outputs Python test script print() to stdout
//! If an exception happens in a Python test script, the process terminates
struct PythonTestOutputHandler final
    : public CCryEditApp::PythonOutputHandler
{
    PythonTestOutputHandler() = default;
    ~PythonTestOutputHandler() override = default;

    void OnTraceMessage(AZStd::string_view message) override
    {
        PythonOutputHandler::OnTraceMessage(message);
        printf("%.*s\n", static_cast<int>(message.size()), message.data());
    }

    void OnErrorMessage(AZStd::string_view message) override
    {
        PythonOutputHandler::OnErrorMessage(message);
        printf("ERROR: %.*s\n", static_cast<int>(message.size()), message.data());
    }

    void OnExceptionMessage(AZStd::string_view message) override
    {
        PythonOutputHandler::OnExceptionMessage(message);
        printf("EXCEPTION: %.*s\n", static_cast<int>(message.size()), message.data());
    }
};

void CCryEditApp::RunInitPythonScript(CEditCommandLineInfo& cmdInfo)
{
    if (cmdInfo.m_bRunPythonTestScript)
    {
        m_pythonOutputHandler = AZStd::make_shared<PythonTestOutputHandler>();
    }
    else
    {
        m_pythonOutputHandler = AZStd::make_shared<PythonOutputHandler>();
    }

    using namespace AzToolsFramework;
    if (cmdInfo.m_bRunPythonScript || cmdInfo.m_bRunPythonTestScript)
    {
        // Separates the compound string of semicolon separated values into a vector of values
        const auto extractSeparatedValues = [](const AZStd::string& compoundValues)
        {
            AZStd::vector<AZStd::string_view> values;
            AZ::StringFunc::TokenizeVisitor(
                compoundValues.c_str(),
                [&values](AZStd::string_view elem)
                {
                    values.push_back(elem);
                },
                ';',
                false /* keepEmptyStrings */
            );

            return values;
        };

        // Reads the contents of the specified file and returns a string of said contents
        const auto readFileContents = [](const AZStd::string& path) -> AZStd::string
        {
            const auto fileSize = AZ::IO::SystemFile::Length(path.c_str());
            if (fileSize == 0)
            {
                return "";
            }

            AZStd::vector<char> buffer(fileSize + 1);
            buffer[fileSize] = '\0';
            if (!AZ::IO::SystemFile::Read(path.c_str(), buffer.data()))
            {
                return "";
            }

            return AZStd::string(buffer.begin(), buffer.end());
        };

        // We support specifying multiple files in the cmdline by separating them with ';'
        // If a semicolon list of .py files is provided we look at the arg string
        AZStd::string scriptFileStr;
        if (cmdInfo.m_strFileName.endsWith(".py"))
        {
            // cmdInfo data is only available on startup, copy it
            scriptFileStr = cmdInfo.m_strFileName.toUtf8().constData();
        }
        else if (cmdInfo.m_strFileName.endsWith(".txt"))
        {
            // Otherwise, we look to see if we can read the file for test modules
            // The file is expected to contain a single semicolon separated string of Editor pytest modules
            if (scriptFileStr = readFileContents(cmdInfo.m_strFileName.toUtf8().data()); scriptFileStr.empty())
            {
                AZ_Error(
                    "RunInitPythonScript",
                    false, "Failed to read the file containing a semi colon separated list of python modules");
                return;
            }
        }
        else
        {
            AZ_Error("RunInitPythonScript", false, "Failed to read Python files from --runpythontest arg. "
                "Expects a semi colon separated list of python modules or a file containing a semi colon separated list of python modules");
            return;
        }

        // Extract the discrete python script files
        const auto fileList = extractSeparatedValues(scriptFileStr);

        if (cmdInfo.m_pythonArgs.length() > 0 || cmdInfo.m_bRunPythonTestScript)
        {
            QByteArray pythonArgsStr = cmdInfo.m_pythonArgs.toUtf8();
            AZStd::vector<AZStd::string_view> pythonArgs;
            AZ::StringFunc::TokenizeVisitor(pythonArgsStr.constData(),
                [&pythonArgs](AZStd::string_view elem)
                {
                    pythonArgs.push_back(elem);
                }, ' '
            );

            if (cmdInfo.m_bRunPythonTestScript)
            {
                // We support specifying multiple test case names in the cmdline by separating them
                // with ';', either in a text file or as a string
                AZStd::string testCaseStr;
                if (cmdInfo.m_pythonTestCase.endsWith(".txt"))
                {
                    // A path to the file containing the test case names has been provided as the argument
                    if (testCaseStr = readFileContents(cmdInfo.m_pythonTestCase.toUtf8().data()); testCaseStr.empty())
                    {
                        AZ_Error(
                            "RunInitPythonScript",
                            false,
                            "Failed to read Python files from --pythontestcase arg. "
                            "Expects a semi colon separated list of python test case names or a file containing a semi colon separated list of "
                            "python test case names");
                        return;
                    }
                }
                else
                {
                    // Test case names have been passed as the argument
                    testCaseStr = cmdInfo.m_pythonTestCase.toUtf8().data();
                }

                // Extract the discrete python test case names
                const auto testCaseList = extractSeparatedValues(testCaseStr);

                // The number of python script files must match the number of test case names for the test case names
                // to properly correlate with their invoking scripts
                if (fileList.size() != testCaseList.size())
                {
                    AZ_Error(
                        "RunInitPythonScript",
                        false,
                        "The number of supplied test scripts (%zu) did not match the number of supplied test case names (%zu)",
                        fileList.size(), testCaseList.size());
                    return;
                }

                bool success = true;
                auto ExecuteByFilenamesTests = [&pythonArgs, &fileList, &testCaseList, &success](EditorPythonRunnerRequests* pythonRunnerRequests)
                {
                    for (int i = 0; i < fileList.size(); ++i)
                    {
                        bool cur_success = pythonRunnerRequests->ExecuteByFilenameAsTest(fileList[i], testCaseList[i], pythonArgs);
                        success = success && cur_success;
                    }
                };
                EditorPythonRunnerRequestBus::Broadcast(ExecuteByFilenamesTests);

                if (success)
                {
                    // Close the editor gracefully as the test has completed
                    GetIEditor()->GetDocument()->SetModifiedFlag(false);
                    QTimer::singleShot(0, qApp, &QApplication::closeAllWindows);
                }
                else
                {
                    // Close down the application with 0xF exit code indicating failure of the test
                    AZ::Debug::Trace::Terminate(0xF);
                }
            }
            else
            {
                auto ExecuteByFilenamesWithArgs = [&pythonArgs, &fileList](EditorPythonRunnerRequests* pythonRunnerRequests)
                {
                    for (AZStd::string_view filename : fileList)
                    {
                        pythonRunnerRequests->ExecuteByFilenameWithArgs(filename, pythonArgs);
                    }
                };
                EditorPythonRunnerRequestBus::Broadcast(ExecuteByFilenamesWithArgs);
            }
        }
        else
        {
            auto ExecuteByFilenames = [&fileList](EditorPythonRunnerRequests* pythonRunnerRequests)
            {
                for (AZStd::string_view filename : fileList)
                {
                    pythonRunnerRequests->ExecuteByFilename(filename);
                }
            };
            EditorPythonRunnerRequestBus::Broadcast(ExecuteByFilenames);
        }
    }
}

/////////////////////////////////////////////////////////////////////////////
// CCryEditApp initialization
bool CCryEditApp::InitInstance()
{
    QElapsedTimer startupTimer;
    startupTimer.start();

    m_pEditor = new CEditorImpl();

    // parameters must be parsed early to capture arguments for test bootstrap
    CEditCommandLineInfo cmdInfo;

    InitFromCommandLine(cmdInfo);

    qobject_cast<Editor::EditorQtApplication*>(qApp)->Initialize(); // Must be done after CEditorImpl() is created
    m_pEditor->Initialize();

    // let anything listening know that they can use the IEditor now
    AzToolsFramework::EditorEvents::Bus::Broadcast(&AzToolsFramework::EditorEvents::NotifyIEditorAvailable, m_pEditor);

    if (cmdInfo.m_bShowVersionInfo)
    {
        CStartupLogoDialog startupDlg(CStartupLogoDialog::About, FormatVersion(m_pEditor->GetFileVersion()), FormatRichTextCopyrightNotice());
        startupDlg.exec();
        return false;
    }

    RegisterReflectedVarHandlers();

    CreateSplashScreen();

    // Register the application's document templates. Document templates
    // serve as the connection between documents, frame windows and views
    CCrySingleDocTemplate* pDocTemplate = CCrySingleDocTemplate::create<CCryEditDoc>();

    m_pDocManager = new CCryDocManager;
    ((CCryDocManager*)m_pDocManager)->SetDefaultTemplate(pDocTemplate);

    auto mainWindow = new MainWindow();
#ifdef Q_OS_MACOS
    auto mainWindowWrapper = new AzQtComponents::WindowDecorationWrapper(AzQtComponents::WindowDecorationWrapper::OptionDisabled);
#else
    auto mainWindowWrapper = new AzQtComponents::WindowDecorationWrapper(AzQtComponents::WindowDecorationWrapper::OptionAutoTitleBarButtons);
#endif
    mainWindowWrapper->setGuest(mainWindow);
    HWND mainWindowWrapperHwnd = (HWND)mainWindowWrapper->winId();

    AZ::IO::FixedMaxPath engineRootPath;
    if (auto settingsRegistry = AZ::SettingsRegistry::Get(); settingsRegistry != nullptr)
    {
        settingsRegistry->Get(engineRootPath.Native(), AZ::SettingsRegistryMergeUtils::FilePathKey_EngineRootFolder);
    }
    QDir engineRoot = QString::fromUtf8(engineRootPath.c_str(), aznumeric_cast<int>(engineRootPath.Native().size()));
    AzQtComponents::StyleManager::addSearchPaths(
        QStringLiteral("style"),
        engineRoot.filePath(QStringLiteral("Code/Editor/Style")),
        QStringLiteral(":/Assets/Editor/Style"),
        engineRootPath);
    AzQtComponents::StyleManager::setStyleSheet(mainWindow, QStringLiteral("style:Editor.qss"));

    // Note: we should use getNativeHandle to get the HWND from the widget, but
    // it returns an invalid handle unless the widget has been shown and polished and even then
    // it sometimes returns an invalid handle.
    // So instead, we use winId(), which does consistently work
    //mainWindowWrapperHwnd = QtUtil::getNativeHandle(mainWindowWrapper);

    // Connect to the AssetProcessor at this point
    // It will be launched if not running
    ConnectToAssetProcessor();

    CCryEditApp::OutputStartupMessage(QString("Initializing Game System..."));

    auto initGameSystemOutcome = InitGameSystem(mainWindowWrapperHwnd);
    if (!initGameSystemOutcome.IsSuccess())
    {
        return false;
    }

    if (auto settingsRegistry = AZ::SettingsRegistry::Get(); settingsRegistry != nullptr)
    {
        AZ::ComponentApplicationLifecycle::SignalEvent(*settingsRegistry, "LegacySystemInterfaceCreated", R"({})");
    }

    // Process some queued events come from system init
    // Such as asset catalog loaded notification.
    // There are some systems need to load configurations from assets for post initialization but before loading level
    AZ::TickBus::ExecuteQueuedEvents();

    qobject_cast<Editor::EditorQtApplication*>(qApp)->LoadSettings();

    // Create Sandbox user folder if necessary
    AZ::IO::FileIOBase::GetDirectInstance()->CreatePath(Path::GetUserSandboxFolder().toUtf8().data());

    if (!InitGame())
    {
        if (gEnv && gEnv->pLog)
        {
            gEnv->pLog->LogError("Game can not be initialized, InitGame() failed.");
        }
        return false;
    }

    // Meant to be called before MainWindow::Initialize
    InitPlugins();

    CCryEditApp::OutputStartupMessage(QString("Initializing Main Window..."));

    mainWindow->Initialize();

    GetIEditor()->GetCommandManager()->RegisterAutoCommands();

    mainWindowWrapper->enableSaveRestoreGeometry("O3DE", "O3DE", "mainWindowGeometry");
    m_pDocManager->OnFileNew();

    if (MainWindow::instance())
    {
        if (m_bConsoleMode || IsInAutotestMode())
        {
            AZ::Environment::FindVariable<int>("assertVerbosityLevel").Set(1);
            m_pConsoleDialog->raise();
        }
        else
        {
            MainWindow::instance()->show();
            MainWindow::instance()->raise();
            MainWindow::instance()->update();
            MainWindow::instance()->setFocus();

#if AZ_TRAIT_OS_PLATFORM_APPLE
            QWindow* window = mainWindowWrapper->windowHandle();
            if (window)
            {
                Editor::WindowObserver* observer = new Editor::WindowObserver(window, this);
                connect(observer, &Editor::WindowObserver::windowIsMovingOrResizingChanged, Editor::EditorQtApplication::instance(), &Editor::EditorQtApplication::setIsMovingOrResizing);
            }
#endif
        }
    }

    if (m_bAutotestMode)
    {
        ICVar* const noErrorReportWindowCVar = gEnv && gEnv->pConsole ? gEnv->pConsole->GetCVar("sys_no_error_report_window") : nullptr;
        if (noErrorReportWindowCVar)
        {
            noErrorReportWindowCVar->Set(true);
        }
        ICVar* const showErrorDialogOnLoadCVar = gEnv && gEnv->pConsole ? gEnv->pConsole->GetCVar("ed_showErrorDialogOnLoad") : nullptr;
        if (showErrorDialogOnLoadCVar)
        {
            showErrorDialogOnLoadCVar->Set(false);
        }
    }

    SetEditorWindowTitle(nullptr, AZ::Utils::GetProjectDisplayName().c_str(), nullptr);
    m_pEditor->InitFinished();

    CCryEditApp::OutputStartupMessage(QString("Activating Python..."));

    // Make sure Python is started before we attempt to restore the Editor layout, since the user
    // might have custom view panes in the saved layout that will need to be registered.
    auto editorPythonEventsInterface = AZ::Interface<AzToolsFramework::EditorPythonEventsInterface>::Get();
    if (editorPythonEventsInterface)
    {
        editorPythonEventsInterface->StartPython();
    }

    CCryEditApp::OutputStartupMessage(QString("")); // add a blank line so that python is not blamed for anything that happens here


    if (!GetIEditor()->IsInConsolewMode())
    {
        bool restoreDefaults = !mainWindowWrapper->restoreGeometryFromSettings();
        QtViewPaneManager::instance()->RestoreLayout(restoreDefaults);
    }

    // Trigger the Action Manager registration hooks once all systems and Gems are initialized and listening.
    AzToolsFramework::ActionManagerSystemComponent::TriggerRegistrationNotifications();

    CloseSplashScreen();

    // DON'T CHANGE ME!
    // Test scripts listen for this line, so please don't touch this without updating them.
    // We consider ourselves "initialized enough" at this stage because all further initialization may be blocked by the modal welcome screen.
    CLogFile::WriteLine(QString("Engine initialized, took %1s.").arg(startupTimer.elapsed() / 1000.0, 0, 'f', 2));

    // Init the level after everything else is finished initializing, otherwise, certain things aren't set up yet
    QTimer::singleShot(0, this, [this, cmdInfo] {
        InitLevel(cmdInfo);
    });

    if (!m_bConsoleMode && !m_bPreviewMode)
    {
        GetIEditor()->UpdateViews();
        if (MainWindow::instance())
        {
            MainWindow::instance()->setFocus();
        }
    }

    if (!InitConsole())
    {
        return true;
    }

    if (auto settingsRegistry = AZ::SettingsRegistry::Get(); settingsRegistry != nullptr)
    {
        AZ::ComponentApplicationLifecycle::SignalEvent(*settingsRegistry, "LegacyCommandLineProcessed", R"({})");
    }

    if (IsInRegularEditorMode())
    {
        int startUpMacroIndex = GetIEditor()->GetToolBoxManager()->GetMacroIndex("startup", true);
        if (startUpMacroIndex >= 0)
        {
            CryLogAlways("Executing the startup macro");
            GetIEditor()->GetToolBoxManager()->ExecuteMacro(startUpMacroIndex, true);
        }
    }

    if (GetIEditor()->GetCommandManager()->IsRegistered("editor.open_lnm_editor"))
    {
        CCommand0::SUIInfo uiInfo;
        [[maybe_unused]] bool ok = GetIEditor()->GetCommandManager()->GetUIInfo("editor.open_lnm_editor", uiInfo);
        assert(ok);
    }

    RunInitPythonScript(cmdInfo);

    return true;
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::LoadFile([[maybe_unused]] QString fileName)
{
    if (GetIEditor()->GetViewManager()->GetViewCount() == 0)
    {
        return;
    }

    if (MainWindow::instance() || m_pConsoleDialog)
    {
        SetEditorWindowTitle(nullptr, AZ::Utils::GetProjectDisplayName().c_str(), GetIEditor()->GetGameEngine()->GetLevelName());
    }

    GetIEditor()->SetModifiedFlag(false);
    GetIEditor()->SetModifiedModule(eModifiedNothing);
}

//////////////////////////////////////////////////////////////////////////
inline void ExtractMenuName(QString& str)
{
    // eliminate &
    int pos = str.indexOf('&');
    if (pos >= 0)
    {
        str = str.left(pos) + str.right(str.length() - pos - 1);
    }
    // cut the string
    for (int i = 0; i < str.length(); i++)
    {
        if (str[i] == 9)
        {
            str = str.left(i);
        }
    }
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::EnableAccelerator([[maybe_unused]] bool bEnable)
{
    /*
    if (bEnable)
    {
        //LoadAccelTable( MAKEINTRESOURCE(IDR_MAINFRAME) );
        m_AccelManager.UpdateWndTable();
        CLogFile::WriteLine( "Enable Accelerators" );
    }
    else
    {
        CMainFrame *mainFrame = (CMainFrame*)m_pMainWnd;
        if (mainFrame->m_hAccelTable)
            DestroyAcceleratorTable( mainFrame->m_hAccelTable );
        mainFrame->m_hAccelTable = nullptr;
        mainFrame->LoadAccelTable( MAKEINTRESOURCE(IDR_GAMEACCELERATOR) );
        CLogFile::WriteLine( "Disable Accelerators" );
    }
    */
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::SaveAutoRemind()
{
    // Added a static variable here to avoid multiple messageboxes to
    // remind the user of saving the file. Many message boxes would appear as this
    // is triggered by a timer even which does not stop when the message box is called.
    // Used a static variable instead of a member variable because this value is not
    // Needed anywhere else.
    static bool boIsShowingWarning(false);

    // Ingore in game mode, or if no level created, or level not modified
    if (GetIEditor()->IsInGameMode() || !GetIEditor()->GetGameEngine()->IsLevelLoaded() || !GetIEditor()->GetDocument()->IsModified())
    {
        return;
    }

    if (boIsShowingWarning)
    {
        return;
    }

    boIsShowingWarning = true;
    if (QMessageBox::question(AzToolsFramework::GetActiveWindow(), QString(), QObject::tr("Auto Reminder: You did not save level for at least %1 minute(s)\r\nDo you want to save it now?").arg(gSettings.autoRemindTime), QMessageBox::Yes | QMessageBox::No) == QMessageBox::Yes)
    {
        // Save now.
        GetIEditor()->SaveDocument();
    }
    boIsShowingWarning = false;
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::WriteConfig()
{
    IEditor* pEditor = GetIEditor();
    if (pEditor && pEditor->GetDisplaySettings())
    {
        pEditor->GetDisplaySettings()->SaveRegistry();
    }
}

// App command to run the dialog
void CCryEditApp::OnAppAbout()
{
    auto* dialog = new CStartupLogoDialog(
        CStartupLogoDialog::About, FormatVersion(m_pEditor->GetFileVersion()), FormatRichTextCopyrightNotice());
    auto mainWindow = MainWindow::instance();
    auto geometry = dialog->geometry();
    geometry.moveCenter(mainWindow->mapToGlobal(mainWindow->geometry().center()));
    dialog->setGeometry(geometry);
    dialog->setAttribute(Qt::WA_DeleteOnClose);
    dialog->show();
}

// App command to run the Welcome to Open 3D Engine dialog
void CCryEditApp::OnAppShowWelcomeScreen()
{
    // This logic is a simplified version of the startup
    // flow that also shows the Welcome dialog

    if (m_creatingNewLevel
        || m_openingLevel
        || m_savingLevel)
    {
        QMessageBox::warning(AzToolsFramework::GetActiveWindow(), QString(), "The Welcome screen cannot be displayed because a level load/save is in progress.");
        return;
    }

    QString levelName;
    bool showWelcomeDialog = true;
    while (showWelcomeDialog)
    {
        // Keep showing the Welcome dialog as long as the user cancels
        // a level creation/load triggered from the Welcome dialog
        levelName = ShowWelcomeDialog();

        if (levelName == "new")
        {
            // The user has clicked on the create new level option
            bool wasCreateLevelOperationCancelled = false;
            bool isNewLevelCreationSuccess = false;
            // This will show the new level dialog until a valid input has been entered by the user or until the user click cancel
            while (!isNewLevelCreationSuccess && !wasCreateLevelOperationCancelled)
            {
                isNewLevelCreationSuccess = CreateLevel(wasCreateLevelOperationCancelled);
            }

            if (isNewLevelCreationSuccess)
            {
                showWelcomeDialog = false;
                levelName.clear();
            }
        }
        else
        {
            // The user has selected an existing level to open
            showWelcomeDialog = false;
        }
    }

    if (!levelName.isEmpty())
    {
        // load level
        if (!CFileUtil::Exists(levelName, false))
        {
            QMessageBox::critical(AzToolsFramework::GetActiveWindow(), QObject::tr("Missing level"), QObject::tr("Failed to auto-load last opened level. Level file does not exist:\n\n%1").arg(levelName));
        }
        else
        {
            OpenDocumentFile(levelName.toUtf8().data());
        }
    }
}

void CCryEditApp::OnUpdateShowWelcomeScreen(QAction* action)
{
    action->setEnabled(!m_creatingNewLevel
        && !m_openingLevel
        && !m_savingLevel);
}

void CCryEditApp::OnDocumentationTutorials()
{
    QString webLink = tr("https://o3de.org/docs/learning-guide/");
    QDesktopServices::openUrl(QUrl(webLink));
}

void CCryEditApp::OnDocumentationGlossary()
{
    QString webLink = tr("https://o3de.org/docs/user-guide/appendix/glossary/");
    QDesktopServices::openUrl(QUrl(webLink));
}

void CCryEditApp::OnDocumentationO3DE()
{
    QString webLink = tr("https://o3de.org/docs/");
    QDesktopServices::openUrl(QUrl(webLink));
}

void CCryEditApp::OnDocumentationReleaseNotes()
{
    QString webLink = tr("https://o3de.org/docs/release-notes/");
    QDesktopServices::openUrl(QUrl(webLink));
}

void CCryEditApp::OnDocumentationGameDevBlog()
{
    QString webLink = tr("https://o3de.org/news-blogs/");
    QDesktopServices::openUrl(QUrl(webLink));
}

void CCryEditApp::OnDocumentationForums()
{
    QString webLink = tr("https://discord.com/invite/o3de");
    QDesktopServices::openUrl(QUrl(webLink));
}

bool CCryEditApp::FixDanglingSharedMemory(const QString& sharedMemName) const
{
    QSystemSemaphore sem(sharedMemName + "_sem", 1);
    sem.acquire();
    {
        QSharedMemory fix(sharedMemName);
        if (!fix.attach())
        {
            if (fix.error() != QSharedMemory::NotFound)
            {
                sem.release();
                return false;
            }
        }
        // fix.detach() when destructed, taking out any dangling shared memory
        // on unix
    }
    sem.release();
    return true;
}

/////////////////////////////////////////////////////////////////////////////
// CCryEditApp message handlers


int CCryEditApp::ExitInstance(int exitCode)
{
    if (m_pEditor)
    {
        m_pEditor->OnBeginShutdownSequence();
    }
    qobject_cast<Editor::EditorQtApplication*>(qApp)->UnloadSettings();

    if (IsInRegularEditorMode())
    {
        if (GetIEditor())
        {
            int shutDownMacroIndex = GetIEditor()->GetToolBoxManager()->GetMacroIndex("shutdown", true);
            if (shutDownMacroIndex >= 0)
            {
                CryLogAlways("Executing the shutdown macro");
                GetIEditor()->GetToolBoxManager()->ExecuteMacro(shutDownMacroIndex, true);
            }
        }
    }

    if (GetIEditor())
    {
        //Nobody seems to know in what case that kind of exit can happen so instrumented to see if it happens at all
        if (m_pEditor)
        {
            m_pEditor->OnEarlyExitShutdownSequence();
        }

        gEnv->pLog->Flush();

        // note: the intention here is to quit immediately without processing anything further
        // on linux and mac, _exit has that effect
        // however, on windows, _exit() still invokes CRT functions, unloads, and destructors
        // so on windows, we need to use TerminateProcess
#if defined(AZ_PLATFORM_WINDOWS)
       TerminateProcess(GetCurrentProcess(), exitCode);
#else

        _exit(exitCode);
#endif
    }

    SAFE_DELETE(m_pConsoleDialog);

    if (GetIEditor())
    {
        GetIEditor()->Notify(eNotify_OnQuit);
    }

    // if we're aborting due to an unexpected shutdown then don't call into objects that don't exist yet.
    if ((gEnv) && (gEnv->pSystem) && (gEnv->pSystem->GetILevelSystem()))
    {
        gEnv->pSystem->GetILevelSystem()->UnloadLevel();
    }

    if (GetIEditor())
    {
        GetIEditor()->GetDocument()->DeleteTemporaryLevel();
    }

    m_bExiting = true;

    HEAP_CHECK
    ////////////////////////////////////////////////////////////////////////
    // Executed directly before termination of the editor, just write a
    // quick note to the log so that we can later see that the editor
    // terminated flawlessly. Also delete temporary files.
    ////////////////////////////////////////////////////////////////////////
        WriteConfig();

    if (m_pEditor)
    {
        // Ensure component entities are wiped prior to unloading plugins,
        // since components may be implemented in those plugins.
        AzToolsFramework::EditorEntityContextRequestBus::Broadcast(
            &AzToolsFramework::EditorEntityContextRequestBus::Events::ResetEditorContext);

        // vital, so that the Qt integration can unhook itself!
        m_pEditor->UnloadPlugins();
        m_pEditor->Uninitialize();
    }

    //////////////////////////////////////////////////////////////////////////
    // Quick end for editor.
    if (gEnv && gEnv->pSystem)
    {
        gEnv->pSystem->Quit();
        SAFE_RELEASE(gEnv->pSystem);
    }
    //////////////////////////////////////////////////////////////////////////

    if (m_pEditor)
    {
        m_pEditor->DeleteThis();
        m_pEditor = nullptr;
    }

    // save accelerator manager configuration.
    //m_AccelManager.SaveOnExit();

#ifdef WIN32
    Gdiplus::GdiplusShutdown(m_gdiplusToken);
#endif

    if (m_mutexApplication)
    {
        delete m_mutexApplication;
    }

    return 0;
}

bool CCryEditApp::IsWindowInForeground()
{
    return Editor::EditorQtApplication::instance()->IsActive();
}

void CCryEditApp::DisableIdleProcessing()
{
    m_disableIdleProcessingCounter++;
}

void CCryEditApp::EnableIdleProcessing()
{
    m_disableIdleProcessingCounter--;
    AZ_Assert(m_disableIdleProcessingCounter >= 0, "m_disableIdleProcessingCounter must be nonnegative");
}

bool CCryEditApp::OnIdle([[maybe_unused]] LONG lCount)
{
    if (0 == m_disableIdleProcessingCounter)
    {
        return IdleProcessing(gSettings.backgroundUpdatePeriod == -1);
    }
    else
    {
        return false;
    }
}

int CCryEditApp::IdleProcessing(bool bBackgroundUpdate)
{
    AZ_Assert(m_disableIdleProcessingCounter == 0, "We should not be in IdleProcessing()");

    //HEAP_CHECK
    if (!MainWindow::instance())
    {
        return 0;
    }

    if (!GetIEditor()->GetSystem())
    {
        return 0;
    }

    // Ensure we don't get called re-entrantly
    // This can occur when a nested Qt event loop fires (e.g. by way of a modal dialog calling exec)
    if (m_idleProcessingRunning)
    {
        return 0;
    }
    QScopedValueRollback<bool> guard(m_idleProcessingRunning, true);

    ////////////////////////////////////////////////////////////////////////
    // Call the update function of the engine
    ////////////////////////////////////////////////////////////////////////
    if (m_bTestMode && !bBackgroundUpdate)
    {
        // Terminate process.
        CLogFile::WriteLine("Editor: Terminate Process");
        exit(0);
    }

    bool bIsAppWindow = IsWindowInForeground();
    bool bActive = false;
    int res = 0;
    if (bIsAppWindow || m_bForceProcessIdle || m_bKeepEditorActive
        // Automated tests must always keep the editor active, or they can get stuck
        || m_bAutotestMode || m_bRunPythonTestScript)
    {
        res = 1;
        bActive = true;
    }

    if (m_bForceProcessIdle && bIsAppWindow)
    {
        m_bForceProcessIdle = false;
    }

    // focus changed
    if (m_bPrevActive != bActive)
    {
        GetIEditor()->GetSystem()->GetISystemEventDispatcher()->OnSystemEvent(ESYSTEM_EVENT_CHANGE_FOCUS, bActive, 0);
    #if defined(AZ_PLATFORM_WINDOWS)
        // This is required for the audio system to be notified of focus changes in the editor.  After discussing it
        // with the macOS team, they are working on unifying the system events between the editor and standalone
        // launcher so this is only needed on windows.
        if (bActive)
        {
            AzFramework::WindowsLifecycleEvents::Bus::Broadcast(&AzFramework::WindowsLifecycleEvents::Bus::Events::OnSetFocus);
        }
        else
        {
            AzFramework::WindowsLifecycleEvents::Bus::Broadcast(&AzFramework::WindowsLifecycleEvents::Bus::Events::OnKillFocus);
        }
    #endif
    }

    m_bPrevActive = bActive;

    // Tick System Events, even in the background
    AZ::ComponentApplicationRequests* componentApplicationRequests = AZ::Interface<AZ::ComponentApplicationRequests>::Get();
    if (componentApplicationRequests)
    {
        AZ::ComponentApplication* componentApplication = componentApplicationRequests->GetApplication();
        if (componentApplication)
        {
            componentApplication->TickSystem();
        }
    }

    // Don't tick application if we're doing idle processing during an assert.
    const bool isErrorWindowVisible = (gEnv && gEnv->pSystem->IsAssertDialogVisible());
    if (isErrorWindowVisible)
    {
        if (m_pEditor)
        {
            m_pEditor->Update();
        }
    }
    else if (bActive || (bBackgroundUpdate && !bIsAppWindow))
    {
        // Update Game
        GetIEditor()->GetGameEngine()->Update();

        if (!GetIEditor()->IsInGameMode())
        {
            if (m_pEditor)
            {
                m_pEditor->Update();
            }

            GetIEditor()->Notify(eNotify_OnIdleUpdate);
        }
    }
    else
    {
        if (GetIEditor()->GetSystem() && GetIEditor()->GetSystem()->GetILog())
        {
            GetIEditor()->GetSystem()->GetILog()->Update(); // print messages from other threads
        }

        // If we're backgrounded and not fully background updating, idle to rate limit SystemTick
        static AZ::TimeMs sTimeLastMs = AZ::GetRealElapsedTimeMs();
        const int64_t maxFrameTimeMs = ed_backgroundSystemTickCap;

        if (maxFrameTimeMs > 0)
        {
            const int64_t maxElapsedTimeMs = maxFrameTimeMs + static_cast<int64_t>(sTimeLastMs);
            const int64_t realElapsedTimeMs = static_cast<int64_t>(AZ::GetRealElapsedTimeMs());
            if (maxElapsedTimeMs > realElapsedTimeMs)
            {
                CrySleep(aznumeric_cast<unsigned int>(maxElapsedTimeMs - realElapsedTimeMs));
            }
        }
        sTimeLastMs = AZ::GetRealElapsedTimeMs();
    }

    DisplayLevelLoadErrors();

    if (CConsoleSCB::GetCreatedInstance())
    {
        CConsoleSCB::GetCreatedInstance()->FlushText();
    }

    return res;
}

void CCryEditApp::DisplayLevelLoadErrors()
{
    CCryEditDoc* currentLevel = GetIEditor()->GetDocument();
    if (currentLevel && currentLevel->IsDocumentReady() && !m_levelErrorsHaveBeenDisplayed)
    {
        // Generally it takes a few idle updates for meshes to load and be processed by their components. This value
        // was picked based on examining when mesh components are updated and their materials are checked for
        // errors (2 updates) plus one more for good luck.
        const int IDLE_FRAMES_TO_WAIT = 3;
        ++m_numBeforeDisplayErrorFrames;
        if (m_numBeforeDisplayErrorFrames > IDLE_FRAMES_TO_WAIT)
        {
            GetIEditor()->CommitLevelErrorReport();
            GetIEditor()->GetErrorReport()->Display();
            m_numBeforeDisplayErrorFrames = 0;
            m_levelErrorsHaveBeenDisplayed = true;
        }
    }
}


//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnEditHold()
{
    GetIEditor()->GetDocument()->Hold(HOLD_FETCH_FILE);
}


//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnEditFetch()
{
    GetIEditor()->GetDocument()->Fetch(HOLD_FETCH_FILE);
}


void CCryEditApp::OnMoveObject()
{
    ////////////////////////////////////////////////////////////////////////
    // Move the selected object to the marker position
    ////////////////////////////////////////////////////////////////////////
}

void CCryEditApp::OnRenameObj()
{
}

void CCryEditApp::OnViewSwitchToGame()
{
    if (IsInPreviewMode())
    {
        return;
    }

    // If switching on game mode...
    if (!GetIEditor()->IsInGameMode())
    {
        // If simulation mode is enabled...
        uint32 flags = GetIEditor()->GetDisplaySettings()->GetSettings();
        if (flags & SETTINGS_PHYSICS)
        {
            // Disable simulation mode
            OnSwitchPhysics();

            // Schedule for next frame to enable game mode
            AZ::Interface<AZ::IEventScheduler>::Get()->AddCallback(
                [this] { OnViewSwitchToGame(); },
                AZ::Name("Enable Game Mode"), AZ::Time::ZeroTimeMs);
            return;
        }
    }

    // close all open menus
    auto activePopup = qApp->activePopupWidget();
    if (qobject_cast<QMenu*>(activePopup))
    {
        activePopup->hide();
    }
    // TODO: Add your command handler code here
    bool inGame = !GetIEditor()->IsInGameMode();
    GetIEditor()->SetInGameMode(inGame);
}

void CCryEditApp::OnViewSwitchToGameFullScreen()
{
    ed_previewGameInFullscreen_once = true;
    OnViewSwitchToGame();
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnEditLevelData()
{
    auto dir = QFileInfo(GetIEditor()->GetDocument()->GetLevelPathName()).dir();
    CFileUtil::EditTextFile(dir.absoluteFilePath("leveldata.xml").toUtf8().data());
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnFileEditLogFile()
{
    QString file = CLogFile::GetLogFileName();
    QString fullPathName = Path::GamePathToFullPath(file);
    QDesktopServices::openUrl(QUrl::fromLocalFile(fullPathName));
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnFileEditEditorini()
{
    CFileUtil::EditTextFile(EDITOR_CFG_FILE);
}

void CCryEditApp::OnPreferences()
{
    /*
    //////////////////////////////////////////////////////////////////////////////
    // Accels edit by CPropertyPage
    CAcceleratorManager tmpAccelManager;
    tmpAccelManager = m_AccelManager;
    CAccelMapPage page(&tmpAccelManager);
    CPropertySheet sheet;
    sheet.SetTitle( _T("Preferences") );
    sheet.AddPage(&page);
    if (sheet.DoModal() == IDOK) {
        m_AccelManager = tmpAccelManager;
        m_AccelManager.UpdateWndTable();
    }
    */
}

void CCryEditApp::OnOpenProjectManagerSettings()
{
    OpenProjectManager("UpdateProject");
}

void CCryEditApp::OnOpenProjectManagerNew()
{
    OpenProjectManager("CreateProject");
}

void CCryEditApp::OnOpenProjectManager()
{
    OpenProjectManager("Projects");
}

void CCryEditApp::OpenProjectManager(const AZStd::string& screen)
{
    // provide the current project path for in case we want to update the project
    AZ::IO::FixedMaxPathString projectPath = AZ::Utils::GetProjectPath();

    const AZStd::vector<AZStd::string> commandLineOptions {
        "--screen", screen,
        "--project-path", AZStd::string::format(R"("%s")", projectPath.c_str()) };

    bool launchSuccess = AzFramework::ProjectManager::LaunchProjectManager(commandLineOptions);
    if (!launchSuccess)
    {
        QMessageBox::critical(AzToolsFramework::GetActiveWindow(), QObject::tr("Failed to launch O3DE Project Manager"), QObject::tr("Failed to find or start the O3dE Project Manager"));
    }
}


//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnUndo()
{
    //GetIEditor()->GetObjectManager()->UndoLastOp();
    GetIEditor()->Undo();
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnRedo()
{
    GetIEditor()->Redo();
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnUpdateRedo(QAction* action)
{
    if (GetIEditor()->GetUndoManager()->IsHaveRedo())
    {
        action->setEnabled(true);
    }
    else
    {
        action->setEnabled(false);
    }
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnUpdateUndo(QAction* action)
{
    if (GetIEditor()->GetUndoManager()->IsHaveUndo())
    {
        action->setEnabled(true);
    }
    else
    {
        action->setEnabled(false);
    }
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnSwitchPhysics()
{
    if (GetIEditor()->GetGameEngine() && !GetIEditor()->GetGameEngine()->GetSimulationMode() && !GetIEditor()->GetGameEngine()->IsLevelLoaded())
    {
        // Don't allow physics to be toggled on if we haven't loaded a level yet
        return;
    }

    QWaitCursor wait;

    GetISystem()->GetISystemEventDispatcher()->OnSystemEvent(ESYSTEM_EVENT_EDITOR_SIMULATION_MODE_SWITCH_START, 0, 0);

    uint32 flags = GetIEditor()->GetDisplaySettings()->GetSettings();
    if (flags & SETTINGS_PHYSICS)
    {
        flags &= ~SETTINGS_PHYSICS;
    }
    else
    {
        flags |= SETTINGS_PHYSICS;
    }

    GetIEditor()->GetDisplaySettings()->SetSettings(flags);

    if ((flags & SETTINGS_PHYSICS) == 0)
    {
        GetIEditor()->GetGameEngine()->SetSimulationMode(false);
        GetISystem()->GetISystemEventDispatcher()->OnSystemEvent(ESYSTEM_EVENT_EDITOR_SIMULATION_MODE_CHANGED, 0, 0);
    }
    else
    {
        GetIEditor()->GetGameEngine()->SetSimulationMode(true);
        GetISystem()->GetISystemEventDispatcher()->OnSystemEvent(ESYSTEM_EVENT_EDITOR_SIMULATION_MODE_CHANGED, 1, 0);
    }

    GetISystem()->GetISystemEventDispatcher()->OnSystemEvent(ESYSTEM_EVENT_EDITOR_SIMULATION_MODE_SWITCH_END, 0, 0);
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnSwitchPhysicsUpdate(QAction* action)
{
    Q_ASSERT(action->isCheckable());
    action->setChecked(GetIEditor()->GetGameEngine()->GetSimulationMode());
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnSyncPlayer()
{
    GetIEditor()->GetGameEngine()->SyncPlayerPosition(!GetIEditor()->GetGameEngine()->IsSyncPlayerPosition());
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnSyncPlayerUpdate(QAction* action)
{
    Q_ASSERT(action->isCheckable());
    action->setChecked(!GetIEditor()->GetGameEngine()->IsSyncPlayerPosition());
}

void CCryEditApp::OnUpdateNonGameMode(QAction* action)
{
    action->setEnabled(!GetIEditor()->IsInGameMode());
}

void CCryEditApp::OnUpdateNewLevel(QAction* action)
{
    action->setEnabled(true);
}

void CCryEditApp::OnUpdatePlayGame(QAction* action)
{
    action->setEnabled(GetIEditor()->IsLevelLoaded());
}

//////////////////////////////////////////////////////////////////////////
CCryEditApp::ECreateLevelResult CCryEditApp::CreateLevel(const QString& templateName, const QString& levelName, QString& fullyQualifiedLevelName /* ={} */)
{
    // If we are creating a new level and we're in simulate mode, then switch it off before we do anything else
    if (GetIEditor()->GetGameEngine() && GetIEditor()->GetGameEngine()->GetSimulationMode())
    {
        // Preserve the modified flag, we don't want this switch of physics to change that flag
        bool bIsDocModified = GetIEditor()->GetDocument()->IsModified();
        OnSwitchPhysics();
        GetIEditor()->GetDocument()->SetModifiedFlag(bIsDocModified);

        auto* rootSpawnableInterface = AzFramework::RootSpawnableInterface::Get();
        if (rootSpawnableInterface)
        {
            rootSpawnableInterface->ProcessSpawnableQueue();
        }
    }

    const QScopedValueRollback<bool> rollback(m_creatingNewLevel);
    m_creatingNewLevel = true;
    GetIEditor()->Notify(eNotify_OnBeginCreate);
    CrySystemEventBus::Broadcast(&CrySystemEventBus::Events::OnCryEditorBeginCreate);

    QString currentLevel = GetIEditor()->GetLevelFolder();
    if (!currentLevel.isEmpty())
    {
        GetIEditor()->GetSystem()->GetIPak()->ClosePacks(currentLevel.toUtf8().data());
    }

    QString cryFileName = levelName.mid(levelName.lastIndexOf('/') + 1, levelName.length() - levelName.lastIndexOf('/') + 1);
    QString levelPath = QStringLiteral("%1/Levels/%2/").arg(Path::GetEditingGameDataFolder().c_str(), levelName);
    fullyQualifiedLevelName = levelPath + cryFileName + EditorUtils::LevelFile::GetDefaultFileExtension();

    //_MAX_PATH includes null terminator, so we actually want to cap at _MAX_PATH-1
    if (fullyQualifiedLevelName.length() >= _MAX_PATH-1)
    {
        GetIEditor()->Notify(eNotify_OnEndCreate);
        return ECLR_MAX_PATH_EXCEEDED;
    }

    // Does the directory already exist ?
    if (QFileInfo(levelPath).exists())
    {
        GetIEditor()->Notify(eNotify_OnEndCreate);
        return ECLR_ALREADY_EXISTS;
    }

    // Create the directory
    CLogFile::WriteLine("Creating level directory");
    if (!CFileUtil::CreatePath(levelPath))
    {
        GetIEditor()->Notify(eNotify_OnEndCreate);
        return ECLR_DIR_CREATION_FAILED;
    }

    if (GetIEditor()->GetDocument()->IsDocumentReady())
    {
        m_pDocManager->OnFileNew();
    }

    ICVar* sv_map = gEnv->pConsole->GetCVar("sv_map");
    if (sv_map)
    {
        sv_map->Set(levelName.toUtf8().data());
    }

    GetIEditor()->GetDocument()->InitEmptyLevel(128, 1);

    GetIEditor()->SetStatusText("Creating Level...");

    // Save the document to this folder
    GetIEditor()->GetDocument()->SetPathName(fullyQualifiedLevelName);
    GetIEditor()->GetGameEngine()->SetLevelPath(levelPath);

    auto* service = AZ::Interface<AzToolsFramework::PrefabEditorEntityOwnershipInterface>::Get();
    if (service)
    {
        const AZStd::string templateNameString(templateName.toUtf8().constData());
        service->CreateNewLevelPrefab(fullyQualifiedLevelName.toUtf8().constData(), templateNameString);
    }

    if (GetIEditor()->GetDocument()->Save())
    {
        GetIEditor()->GetGameEngine()->LoadLevel(true, true);
        GetIEditor()->GetSystem()->GetISystemEventDispatcher()->OnSystemEvent(ESYSTEM_EVENT_LEVEL_PRECACHE_START, 0, 0);

        GetIEditor()->GetSystem()->GetISystemEventDispatcher()->OnSystemEvent(ESYSTEM_EVENT_LEVEL_PRECACHE_END, 0, 0);
    }

    GetIEditor()->GetDocument()->CreateDefaultLevelAssets(128, 1);
    GetIEditor()->GetDocument()->SetDocumentReady(true);
    GetIEditor()->SetStatusText("Ready");

    // At the end of the creating level process, add this level to the MRU list
    CCryEditApp::instance()->AddToRecentFileList(fullyQualifiedLevelName);

    GetIEditor()->Notify(eNotify_OnEndCreate);
    CrySystemEventBus::Broadcast(&CrySystemEventBus::Events::OnCryEditorEndCreate);
    return ECLR_OK;
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnCreateLevel()
{
    if (m_creatingNewLevel)
    {
        return;
    }
    bool wasCreateLevelOperationCancelled = false;
    bool isNewLevelCreationSuccess = false;
    // This will show the new level dialog until a valid input has been entered by the user or until the user click cancel
    while (!isNewLevelCreationSuccess && !wasCreateLevelOperationCancelled)
    {
        wasCreateLevelOperationCancelled = false;
        isNewLevelCreationSuccess = CreateLevel(wasCreateLevelOperationCancelled);
    }
}

//////////////////////////////////////////////////////////////////////////
bool CCryEditApp::CreateLevel(bool& wasCreateLevelOperationCancelled)
{
    bool bIsDocModified = GetIEditor()->GetDocument()->IsModified();
    if (GetIEditor()->GetDocument()->IsDocumentReady() && bIsDocModified)
    {
        auto* prefabEditorEntityOwnershipInterface = AZ::Interface<AzToolsFramework::PrefabEditorEntityOwnershipInterface>::Get();
        auto* prefabIntegrationInterface = AZ::Interface<AzToolsFramework::Prefab::PrefabIntegrationInterface>::Get();
        AZ_Assert(prefabEditorEntityOwnershipInterface != nullptr, "PrefabEditorEntityOwnershipInterface is not found.");
        AZ_Assert(prefabIntegrationInterface != nullptr, "PrefabIntegrationInterface is not found.");

        if (prefabEditorEntityOwnershipInterface == nullptr || prefabIntegrationInterface == nullptr)
        {
            return false;
        }

        AzToolsFramework::Prefab::TemplateId rootPrefabTemplateId = prefabEditorEntityOwnershipInterface->GetRootPrefabTemplateId();
        int prefabSaveSelection = prefabIntegrationInterface->HandleRootPrefabClosure(rootPrefabTemplateId);

        // In order to get the accept and reject codes of QDialog and QDialogButtonBox aligned, we do (1-prefabSaveSelection) here.
        // For example, QDialog::Rejected(0) is emitted when dialog is closed. But the int value corresponds to
        // QDialogButtonBox::AcceptRole(0).
        switch (1 - prefabSaveSelection)
        {
        case QDialogButtonBox::AcceptRole:
            bIsDocModified = false;
            break;
        case QDialogButtonBox::RejectRole:
            wasCreateLevelOperationCancelled = true;
            return false;
        case QDialogButtonBox::InvalidRole:
            // Set Modified flag to false to prevent show Save unchanged dialog again
            GetIEditor()->GetDocument()->SetModifiedFlag(false);
            break;
        }

    }

    const char* temporaryLevelName = GetIEditor()->GetDocument()->GetTemporaryLevelName();

    CNewLevelDialog dlg;
    dlg.m_level = "";

    if (dlg.exec() != QDialog::Accepted)
    {
        wasCreateLevelOperationCancelled = true;
        GetIEditor()->GetDocument()->SetModifiedFlag(bIsDocModified);
        return false;
    }

    if (!GetIEditor()->GetLevelIndependentFileMan()->PromptChangedFiles())
    {
        return false;
    }

    QString levelNameWithPath = dlg.GetLevel();
    QString levelName = levelNameWithPath.mid(levelNameWithPath.lastIndexOf('/') + 1);

    if (levelName == temporaryLevelName && GetIEditor()->GetLevelName() != temporaryLevelName)
    {
        GetIEditor()->GetDocument()->DeleteTemporaryLevel();
    }

    if (levelName.length() == 0 || !AZ::StringFunc::Path::IsValid(levelName.toUtf8().data()))
    {
        QMessageBox::critical(AzToolsFramework::GetActiveWindow(), QString(), QObject::tr("Level name is invalid, please choose another name."));
        return false;
    }

    //Verify that we are not using the temporary level name
    if (QString::compare(levelName, temporaryLevelName) == 0)
    {
        QMessageBox::critical(AzToolsFramework::GetActiveWindow(), QString(), QObject::tr("Please enter a level name that is different from the temporary name."));
        return false;
    }

    // We're about to start creating a level, so start recording errors to display at the end.
    GetIEditor()->StartLevelErrorReportRecording();

    QString fullyQualifiedLevelName;
    ECreateLevelResult result = CreateLevel(dlg.GetTemplateName(), levelNameWithPath, fullyQualifiedLevelName);

    if (result == ECLR_ALREADY_EXISTS)
    {
        QMessageBox::critical(AzToolsFramework::GetActiveWindow(), QString(), QObject::tr("Level with this name already exists, please choose another name."));
        return false;
    }
    else if (result == ECLR_DIR_CREATION_FAILED)
    {
        QString szLevelRoot = QStringLiteral("%1\\Levels\\%2").arg(Path::GetEditingGameDataFolder().c_str(), levelName);

        QByteArray windowsErrorMessage(ERROR_LEN, 0);
        QByteArray cwd(ERROR_LEN, 0);
        DWORD dw = GetLastError();

#ifdef WIN32
        wchar_t windowsErrorMessageW[ERROR_LEN];
        windowsErrorMessageW[0] = L'\0';
        FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
            nullptr,
            dw,
            MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
            windowsErrorMessageW,
            ERROR_LEN, nullptr);
        _getcwd(cwd.data(), cwd.length());
        AZStd::to_string(windowsErrorMessage.data(), ERROR_LEN, windowsErrorMessageW);
#else
        windowsErrorMessage = strerror(dw);
        cwd = QDir::currentPath().toUtf8();
#endif

        QMessageBox::critical(AzToolsFramework::GetActiveWindow(), QString(), QObject::tr("Failed to create level directory: %1\n Error: %2\nCurrent Path: %3").arg(szLevelRoot, windowsErrorMessage, cwd));
        return false;
    }
    else if (result == ECLR_MAX_PATH_EXCEEDED)
    {
        QFileInfo info(fullyQualifiedLevelName);
        const AZStd::string rawProjectDirectory = Path::GetEditingGameDataFolder();
        const QString projectDirectory = QDir::toNativeSeparators(QString::fromUtf8(rawProjectDirectory.data(), static_cast<int>(rawProjectDirectory.size())));
        const QString elidedLevelName = QStringLiteral("%1...%2").arg(levelName.left(10)).arg(levelName.right(10));
        const QString elidedLevelFileName = QStringLiteral("%1...%2").arg(info.fileName().left(10)).arg(info.fileName().right(10));
        const QString message = QObject::tr(
            "The fully-qualified path for the new level exceeds the maximum supported path length of %1 characters (it's %2 characters long). Please choose a smaller name.\n\n"
            "The fully-qualified path is made up of the project folder (\"%3\", %4 characters), the \"Levels\" sub-folder, a folder named for the level (\"%5\", %6 characters) and the level file (\"%7\", %8 characters), plus necessary separators.\n\n"
            "Please also note that on most platforms, individual components of the path (folder/file names can't exceed  approximately 255 characters)\n\n"
            "Click \"Copy to Clipboard\" to copy the fully-qualified name and close this message.")
            .arg(_MAX_PATH - 1).arg(fullyQualifiedLevelName.size())
            .arg(projectDirectory).arg(projectDirectory.size())
            .arg(elidedLevelName).arg(levelName.size())
            .arg(elidedLevelFileName).arg(info.fileName().size());
        QMessageBox messageBox(QMessageBox::Critical, QString(), message, QMessageBox::Ok, AzToolsFramework::GetActiveWindow());
        QPushButton* copyButton = messageBox.addButton(QObject::tr("Copy to Clipboard"), QMessageBox::ActionRole);
        QObject::connect(copyButton, &QPushButton::pressed, this, [fullyQualifiedLevelName]() { QGuiApplication::clipboard()->setText(fullyQualifiedLevelName); });
        messageBox.exec();
        return false;
    }

    // force the level being rendered at least once
    m_bForceProcessIdle = true;

    m_levelErrorsHaveBeenDisplayed = false;

    return true;
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnOpenLevel()
{
    CLevelFileDialog levelFileDialog(true);
    levelFileDialog.show();
    levelFileDialog.adjustSize();

    if (levelFileDialog.exec() == QDialog::Accepted)
    {
        OpenDocumentFile(levelFileDialog.GetFileName().toUtf8().data(), true, COpenSameLevelOptions::ReopenLevelIfSame);
    }
}

//////////////////////////////////////////////////////////////////////////
CCryEditDoc* CCryEditApp::OpenDocumentFile(const char* filename, bool addToMostRecentFileList, COpenSameLevelOptions openSameLevelOptions)
{
    if (m_openingLevel)
    {
        return GetIEditor()->GetDocument();
    }

    // If we are loading and we're in simulate mode, then switch it off before we do anything else
    if (GetIEditor()->GetGameEngine() && GetIEditor()->GetGameEngine()->GetSimulationMode())
    {
        // Preserve the modified flag, we don't want this switch of physics to change that flag
        bool bIsDocModified = GetIEditor()->GetDocument()->IsModified();
        OnSwitchPhysics();
        GetIEditor()->GetDocument()->SetModifiedFlag(bIsDocModified);

        auto* rootSpawnableInterface = AzFramework::RootSpawnableInterface::Get();
        if (rootSpawnableInterface)
        {
            rootSpawnableInterface->ProcessSpawnableQueue();
        }
    }

    // We're about to start loading a level, so start recording errors to display at the end.
    GetIEditor()->StartLevelErrorReportRecording();

    const QScopedValueRollback<bool> rollback(m_openingLevel, true);

    MainWindow::instance()->menuBar()->setEnabled(false);

    CCryEditDoc* doc = nullptr;
    bool bVisible = false;
    bool bTriggerConsole = false;

    doc = GetIEditor()->GetDocument();
    bVisible = GetIEditor()->ShowConsole(true);
    bTriggerConsole = true;

    if (GetIEditor()->GetLevelIndependentFileMan()->PromptChangedFiles())
    {
        SandboxEditor::StartupTraceHandler openDocTraceHandler;
        openDocTraceHandler.StartCollection();
        if (m_bAutotestMode)
        {
            openDocTraceHandler.SetShowWindow(false);
        }

        // in this case, we set addToMostRecentFileList to always be true because adding files to the MRU list
        // automatically culls duplicate and normalizes paths anyway
        m_pDocManager->OpenDocumentFile(filename, addToMostRecentFileList, openSameLevelOptions);

        if (openDocTraceHandler.HasAnyErrors())
        {
            doc->SetHasErrors();
        }
    }

    if (bTriggerConsole)
    {
        GetIEditor()->ShowConsole(bVisible);
    }

    MainWindow::instance()->menuBar()->setEnabled(true);

    m_levelErrorsHaveBeenDisplayed = false;

    return doc; // the API wants a CDocument* to be returned. It seems not to be used, though, in our current state.
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnResourcesReduceworkingset()
{
#ifdef WIN32 // no such thing on macOS
    SetProcessWorkingSetSize(GetCurrentProcess(), std::numeric_limits<SIZE_T>::max(), std::numeric_limits<SIZE_T>::max());
#endif
}

void CCryEditApp::OnUpdateWireframe(QAction* action)
{
    Q_ASSERT(action->isCheckable());
    int             nWireframe(R_SOLID_MODE);
    ICVar*      r_wireframe(gEnv->pConsole->GetCVar("r_wireframe"));

    if (r_wireframe)
    {
        nWireframe = r_wireframe->GetIVal();
    }

    action->setChecked(nWireframe == R_WIREFRAME_MODE);
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnViewConfigureLayout()
{
    if (GetIEditor()->IsInGameMode())
    {
        // you may not change your viewports while game mode is running.
        CryLog("You may not change viewport configuration while in game mode.");
        return;
    }
    CLayoutWnd* layout = GetIEditor()->GetViewManager()->GetLayout();
    if (layout)
    {
        CLayoutConfigDialog dlg;
        dlg.SetLayout(layout->GetLayout());
        if (dlg.exec() == QDialog::Accepted)
        {
            // Will kill this Pane. so must be last line in this function.
            layout->CreateLayout(dlg.GetLayout());
        }
    }
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnToolsLogMemoryUsage()
{
    gEnv->pConsole->ExecuteString("SaveLevelStats");
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnCustomizeKeyboard()
{
    MainWindow::instance()->OnCustomizeToolbar();
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnToolsScriptHelp()
{
    AzToolsFramework::CScriptHelpDialog::GetInstance()->show();
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnViewCycle2dviewport()
{
    GetIEditor()->GetViewManager()->Cycle2DViewport();
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnDisplayGotoPosition()
{
    GotoPositionDialog dialog;
    dialog.exec();
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnFileSavelevelresources()
{
    // TODO - Remove this?
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnClearRegistryData()
{
    if (QMessageBox::warning(AzToolsFramework::GetActiveWindow(), QString(), QObject::tr("Clear all sandbox registry data ?"),
        QMessageBox::Yes | QMessageBox::No) == QMessageBox::Yes)
    {
        QSettings settings;
        settings.clear();
    }
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnToolsPreferences()
{
    EditorPreferencesDialog dlg(MainWindow::instance());
    dlg.exec();
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnSwitchToSequenceCamera()
{
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnUpdateSwitchToSequenceCamera(QAction* action)
{
    Q_ASSERT(action->isCheckable());
    {
        action->setEnabled(false);
    }
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnSwitchToSelectedcamera()
{
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnUpdateSwitchToSelectedCamera(QAction* action)
{
    Q_ASSERT(action->isCheckable());
    {
        action->setEnabled(false);
    }
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnSwitchcameraNext()
{

}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnOpenAssetBrowserView()
{
    QtViewPaneManager::instance()->OpenPane(LyViewPane::AssetBrowser);
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnOpenTrackView()
{
    QtViewPaneManager::instance()->OpenPane(LyViewPane::TrackView);
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnOpenAudioControlsEditor()
{
    QtViewPaneManager::instance()->OpenPane(LyViewPane::AudioControlsEditor);
}

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::OnOpenUICanvasEditor()
{
    QtViewPaneManager::instance()->OpenPane(LyViewPane::UiEditor);
}

//////////////////////////////////////////////////////////////////////////
RecentFileList* CCryEditApp::GetRecentFileList()
{
    static RecentFileList list;
    return &list;
};

//////////////////////////////////////////////////////////////////////////
void CCryEditApp::AddToRecentFileList(const QString& lpszPathName)
{
    // In later MFC implementations (WINVER >= 0x0601) files must exist before they can be added to the recent files list.
    // Here we override the new CWinApp::AddToRecentFileList code with the old implementation to remove this requirement.

    if (IsInAutotestMode())
    {
        // Never add to the recent file list when in auto test mode
        // This would cause issues for devs running tests locally impacting their normal workflows/setups
        return;
    }


    if (GetRecentFileList())
    {
        GetRecentFileList()->Add(lpszPathName);
    }

    // write the list immediately so it will be remembered even after a crash
    if (GetRecentFileList())
    {
        GetRecentFileList()->WriteList();
    }
    else
    {
        CLogFile::WriteLine("ERROR: Recent File List is NULL!");
    }
}

//////////////////////////////////////////////////////////////////////////
bool CCryEditApp::IsInRegularEditorMode()
{
    return !IsInTestMode() && !IsInPreviewMode()
           && !IsInConsoleMode() && !IsInLevelLoadTestMode();
}

void CCryEditApp::SetEditorWindowTitle(QString sTitleStr, QString sPreTitleStr, QString sPostTitleStr)
{
    if (MainWindow::instance() || m_pConsoleDialog)
    {
        if (sTitleStr.isEmpty())
        {
            sTitleStr = QObject::tr("O3DE Editor [%1]").arg(FormatVersion(m_pEditor->GetFileVersion()));
        }

        if (!sPreTitleStr.isEmpty())
        {
            sTitleStr.insert(sTitleStr.length(), QStringLiteral(" - %1").arg(sPreTitleStr));
        }

        if (!sPostTitleStr.isEmpty())
        {
            sTitleStr.insert(sTitleStr.length(), QStringLiteral(" - %1").arg(sPostTitleStr));
        }

        MainWindow::instance()->setWindowTitle(sTitleStr);
        if (m_pConsoleDialog)
        {
            m_pConsoleDialog->setWindowTitle(sTitleStr);
        }
    }
}

CMainFrame * CCryEditApp::GetMainFrame() const
{
    return MainWindow::instance()->GetOldMainFrame();
}


void CCryEditApp::OpenExternalLuaDebugger(AZStd::string_view luaDebuggerUri, AZStd::string_view projectPath, AZStd::string_view enginePath, const char* files)
{
    // Put together the whole Url Query String:
    QUrlQuery query;
    query.addQueryItem("projectPath", QString::fromUtf8(projectPath.data(), aznumeric_cast<int>(projectPath.size())));
    if (!enginePath.empty())
    {
        query.addQueryItem("enginePath", QString::fromUtf8(enginePath.data(), aznumeric_cast<int>(enginePath.size())));
    }

    auto ParseFilesList = [&](AZStd::string_view filePath)
    {
        bool fullPathFound = false;
        auto GetFullSourcePath = [&]
        (AzToolsFramework::AssetSystem::AssetSystemRequest* assetSystemRequests)
        {
            AZ::IO::Path assetFullPath;
            if(assetSystemRequests->GetFullSourcePathFromRelativeProductPath(filePath, assetFullPath.Native()))
            {
                fullPathFound = true;
                query.addQueryItem("files[]", QString::fromUtf8(assetFullPath.c_str()));
            }
        };
        AzToolsFramework::AssetSystemRequestBus::Broadcast(AZStd::move(GetFullSourcePath));
        // If the full source path could be found through the Asset System, then
        // attempt to resolve the path using the FileIO instance
        if (!fullPathFound)
        {
            AZ::IO::FixedMaxPath resolvedFilePath;
            if (auto fileIo = AZ::IO::FileIOBase::GetInstance();
                fileIo != nullptr && fileIo->ResolvePath(resolvedFilePath, filePath)
                && fileIo->Exists(resolvedFilePath.c_str()))
            {
                query.addQueryItem("files[]", QString::fromUtf8(resolvedFilePath.c_str()));
            }
        }
    };
    AZ::StringFunc::TokenizeVisitor(files, ParseFilesList, "|");

    QUrl luaDebuggerUrl(QString::fromUtf8(luaDebuggerUri.data(), aznumeric_cast<int>(luaDebuggerUri.size())));
    luaDebuggerUrl.setQuery(query);

    AZ_VerifyError("CCryEditApp", Platform::OpenUri(luaDebuggerUrl),
        "Failed to start external lua debugger with URI: %s", luaDebuggerUrl.toString().toUtf8().constData());

}

void CCryEditApp::OpenLUAEditor(const char* files)
{
    AZ::IO::FixedMaxPathString enginePath = AZ::Utils::GetEnginePath();
    AZ::IO::FixedMaxPathString projectPath = AZ::Utils::GetProjectPath();

    auto registry = AZ::SettingsRegistry::Get();
    if (registry)
    {
        AZStd::string luaDebuggerUri;
        if (registry->Get(luaDebuggerUri, LuaDebuggerUriRegistryKey))
        {
            OpenExternalLuaDebugger(luaDebuggerUri, projectPath, enginePath, files);
            return;
        }
    }

    AZStd::string filename = "LuaIDE";
    AZ::IO::FixedMaxPath executablePath = AZ::Utils::GetExecutableDirectory();
    executablePath /= filename + AZ_TRAIT_OS_EXECUTABLE_EXTENSION;

    if (!AZ::IO::SystemFile::Exists(executablePath.c_str()))
    {
        AZ_Error("LuaIDE", false, "%s not found", executablePath.c_str());
        return;
    }

    AzFramework::ProcessLauncher::ProcessLaunchInfo processLaunchInfo;

    AZStd::vector<AZStd::string> launchCmd = { executablePath.String() };
    launchCmd.emplace_back("--engine-path");
    launchCmd.emplace_back(AZStd::string_view{ enginePath });
    launchCmd.emplace_back("--project-path");
    launchCmd.emplace_back(AZStd::string_view{ projectPath });
    launchCmd.emplace_back("--launch");
    launchCmd.emplace_back("lua");

    auto ParseFilesList = [&launchCmd](AZStd::string_view filePath)
    {
        bool fullPathFound = false;
        auto GetFullSourcePath = [&launchCmd, &filePath, &fullPathFound]
        (AzToolsFramework::AssetSystem::AssetSystemRequest* assetSystemRequests)
        {
            AZ::IO::Path assetFullPath;
            if(assetSystemRequests->GetFullSourcePathFromRelativeProductPath(filePath, assetFullPath.Native()))
            {
                fullPathFound = true;
                launchCmd.emplace_back("--files");
                launchCmd.emplace_back(AZStd::move(assetFullPath.Native()));
            }
        };
        AzToolsFramework::AssetSystemRequestBus::Broadcast(AZStd::move(GetFullSourcePath));
        // If the full source path could be found through the Asset System, then
        // attempt to resolve the path using the FileIO instance
        if (!fullPathFound)
        {
            AZ::IO::FixedMaxPath resolvedFilePath;
            if (auto fileIo = AZ::IO::FileIOBase::GetInstance();
                fileIo != nullptr && fileIo->ResolvePath(resolvedFilePath, filePath)
                && fileIo->Exists(resolvedFilePath.c_str()))
            {
                launchCmd.emplace_back("--files");
                launchCmd.emplace_back(resolvedFilePath.String());
            }
        }
    };
    AZ::StringFunc::TokenizeVisitor(files, ParseFilesList, "|");

    processLaunchInfo.m_commandlineParameters = AZStd::move(launchCmd);

    AZ_VerifyError("LuaIDE", AzFramework::ProcessLauncher::LaunchUnwatchedProcess(processLaunchInfo),
        "Lua IDE has failed to launch at path %s", executablePath.c_str());
}

void CCryEditApp::PrintAlways(const AZStd::string& output)
{
    m_stdoutRedirection.WriteBypassingRedirect(output.c_str(), static_cast<unsigned int>(output.size()));
}

void CCryEditApp::RedirectStdoutToNull()
{
    m_stdoutRedirection.RedirectTo(AZ::IO::SystemFile::GetNullFilename());
}

void CCryEditApp::OnError(AzFramework::AssetSystem::AssetSystemErrors error)
{
    AZStd::string errorMessage = "";

    switch (error)
    {
    case AzFramework::AssetSystem::ASSETSYSTEM_FAILED_TO_LAUNCH_ASSETPROCESSOR:
        errorMessage = AZStd::string::format("Failed to start the Asset Processor.\r\nPlease make sure that AssetProcessor is available in the same folder the Editor is in.\r\n");
        break;
    case AzFramework::AssetSystem::ASSETSYSTEM_FAILED_TO_CONNECT_TO_ASSETPROCESSOR:
        errorMessage = AZStd::string::format("Failed to connect to the Asset Processor.\r\nPlease make sure that AssetProcessor is available in the same folder the Editor is in and another copy is not already running somewhere else.\r\n");
        break;
    }

    QMessageBox::critical(nullptr,"Error",errorMessage.c_str());
}

void CCryEditApp::OnOpenProceduralMaterialEditor()
{
    QtViewPaneManager::instance()->OpenPane(LyViewPane::SubstanceEditor);
}

namespace Editor
{
    //! This function returns the build system target name
    AZStd::string_view GetBuildTargetName()
    {
#if !defined (LY_CMAKE_TARGET)
#error "LY_CMAKE_TARGET must be defined in order to add this source file to a CMake executable target"
#endif
        return AZStd::string_view{ LY_CMAKE_TARGET };
    }
}

#if defined(AZ_PLATFORM_WINDOWS)
//Due to some laptops not autoswitching to the discrete gpu correctly we are adding these
//dllspecs as defined in the amd and nvidia white papers to 'force on' the use of the
//discrete chips.  This will be overriden by users setting application profiles
//and may not work on older drivers or bios. In theory this should be enough to always force on
//the discrete chips.

//http://developer.download.nvidia.com/devzone/devcenter/gamegraphics/files/OptimusRenderingPolicies.pdf
//https://community.amd.com/thread/169965

// It is unclear if this is also needed for linux or osx at this time(22/02/2017)
extern "C"
{
    __declspec(dllexport) int AmdPowerXpressRequestHighPerformance = 1;
    __declspec(dllexport) DWORD NvOptimusEnablement = 0x00000001;
}
#endif

#ifdef Q_OS_WIN
#pragma comment(lib, "Shell32.lib")
#endif

extern "C" int AZ_DLL_EXPORT CryEditMain(int argc, char* argv[])
{
    // Debugging utilities
    for (int i = 1; i < argc; ++i)
    {
        if (azstricmp(argv[i], "--attach-debugger") == 0)
        {
            AZ::Debug::Trace::AttachDebugger();
        }
        else if (azstricmp(argv[i], "--wait-for-debugger") == 0)
        {
            AZ::Debug::Trace::WaitForDebugger();
        }
    }

    // ensure the EditorEventsBus context gets created inside EditorLib
    [[maybe_unused]] const auto& editorEventsContext = AzToolsFramework::EditorEvents::Bus::GetOrCreateContext();

    // connect relevant buses to global settings
    gSettings.Connect();

    auto theApp = AZStd::make_unique<CCryEditApp>();

    // Must be set before QApplication is initialized, so that we support HighDpi monitors, like the Retina displays
    // on Windows 10
    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
    QCoreApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
    QGuiApplication::setHighDpiScaleFactorRoundingPolicy(Qt::HighDpiScaleFactorRoundingPolicy::PassThrough);

    // QtOpenGL attributes and surface format setup.
    QCoreApplication::setAttribute(Qt::AA_ShareOpenGLContexts, true);
    QSurfaceFormat format = QSurfaceFormat::defaultFormat();
    format.setDepthBufferSize(24);
    format.setStencilBufferSize(8);
    format.setVersion(2, 1);
    format.setProfile(QSurfaceFormat::CoreProfile);
    format.setSamples(8);
    format.setSwapBehavior(QSurfaceFormat::DoubleBuffer);
    format.setRenderableType(QSurfaceFormat::OpenGL);
    format.setSwapInterval(0);
#ifdef AZ_DEBUG_BUILD
    format.setOption(QSurfaceFormat::DebugContext);
#endif
    QSurfaceFormat::setDefaultFormat(format);

    Editor::EditorQtApplication::InstallQtLogHandler();

    AzQtComponents::Utilities::HandleDpiAwareness(AzQtComponents::Utilities::SystemDpiAware);
    Editor::EditorQtApplication* app = Editor::EditorQtApplication::newInstance(argc, argv);

    QStringList qArgs = app->arguments();
    const bool is_automated_test = AZStd::any_of(qArgs.begin(), qArgs.end(),
        [](const QString& elem)
        {
            return elem.endsWith("autotest_mode") || elem.endsWith("runpythontest");
        }
    );

    if (is_automated_test)
    {
        // Nullroute all stdout to null for automated tests, this way we make sure
        // that the test result output is not polluted with unrelated output data.
        theApp->RedirectStdoutToNull();
    }

    // Hook the trace bus to catch errors, boot the AZ app after the QApplication is up
    int ret = 0;

    // open a scope to contain the AZToolsApp instance;
    {
        EditorInternal::EditorToolsApplication AZToolsApp(&argc, &argv);

        {
            CEditCommandLineInfo cmdInfo;
            if (!cmdInfo.m_bAutotestMode && !cmdInfo.m_bConsoleMode &&
                !cmdInfo.m_bNullRenderer && !cmdInfo.m_bTest)
            {
                if (auto nativeUI = AZ::Interface<AZ::NativeUI::NativeUIRequests>::Get(); nativeUI != nullptr)
                {
                    nativeUI->SetMode(AZ::NativeUI::Mode::ENABLED);
                }
            }
        }

        // The settings registry has been created by the AZ::ComponentApplication constructor at this point
        AZ::SettingsRegistryInterface& registry = *AZ::SettingsRegistry::Get();
        AZ::SettingsRegistryMergeUtils::MergeSettingsToRegistry_AddBuildSystemTargetSpecialization(
            registry, Editor::GetBuildTargetName());

        AZ::Interface<AZ::IConsole>::Get()->PerformCommand("sv_isDedicated false");

        if (!AZToolsApp.Start())
        {
            return -1;
        }

        AzToolsFramework::EditorEvents::Bus::Broadcast(&AzToolsFramework::EditorEvents::NotifyQtApplicationAvailable, app);

        int exitCode = 0;

        bool didCryEditStart = CCryEditApp::instance()->InitInstance();
        AZ_Error("Editor", didCryEditStart, "O3DE Editor did not initialize correctly, and will close."
            "\nThis could be because of incorrectly configured components, or missing required gems."
            "\nSee other errors for more details.");

        AzToolsFramework::EditorEventsBus::Broadcast(&AzToolsFramework::EditorEvents::NotifyEditorInitialized);

        if (didCryEditStart)
        {
            app->EnableOnIdle();

            ret = app->exec();
        }
        else
        {
            exitCode = 1;
        }

        CCryEditApp::instance()->ExitInstance(exitCode);

    }

    delete app;

    gSettings.Disconnect();

    return ret;
}

AZ_DECLARE_MODULE_INITIALIZATION

#include <moc_CryEdit.cpp>