/////////////////////////////////////////////////////////////////////////////////
//
//  Copyright (C) 2011-     Statoil ASA
//  Copyright (C) 2013-     Ceetron Solutions AS
//  Copyright (C) 2011-2012 Ceetron AS
// 
//  ResInsight is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
// 
//  ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
//  FITNESS FOR A PARTICULAR PURPOSE.
// 
//  See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html> 
//  for more details.
//
/////////////////////////////////////////////////////////////////////////////////

#pragma once

#include <QApplication>
#include <QProcess>
#include <QMutex>

#include "cafPdmObject.h"
#include "cafPdmField.h"
#include "cvfBase.h"
#include "cvfObject.h"
#include "cvfFont.h"

#include <iostream>
#include <memory>

class QAction;

class Drawable;

class RIProcess;

class RiaPreferences;
class RiaProjectModifier;
class RiaSocketServer;

class RigEclipseCaseData;

class RimCommandObject;
class RimEclipseCase;
class RimEclipseView;
class RimProject;
class RimSummaryPlot;
class RimView;
class RimViewWindow;
class RimWellLogPlot;
class RimWellAllocationPlot;

class RiuMainWindowBase;
class RiuMainPlotWindow;
class RiuRecentFileActionProvider;

namespace caf
{
    class UiProcess;
}

//==================================================================================================
//
// 
//
//==================================================================================================
class RiaApplication : public QApplication
{
    Q_OBJECT

public:
    enum RINavigationPolicy
    {
        NAVIGATION_POLICY_CEETRON,
        NAVIGATION_POLICY_CAD,
        NAVIGATION_POLICY_GEOQUEST,
        NAVIGATION_POLICY_RMS
    };

    enum ProjectLoadAction
    {
        PLA_NONE = 0,
        PLA_CALCULATE_STATISTICS = 1
    };

public:
    RiaApplication(int& argc, char** argv);
    ~RiaApplication();
    static RiaApplication* instance();

    int                     parseArgumentsAndRunUnitTestsIfRequested();
    bool                    parseArguments();

    void                    executeRegressionTests(const QString& regressionTestPath);

    void                    setActiveReservoirView(RimView*);
    RimView*                activeReservoirView();
    const RimView*          activeReservoirView() const;

    RimViewWindow*          activePlotWindow() const;

    void                scheduleDisplayModelUpdateAndRedraw(RimView* resViewToUpdate);
    void                scheduleRecalculateCompletionTypeAndRedrawAllViews();
    void                scheduleRecalculateCompletionTypeAndRedrawEclipseCase(RimEclipseCase* eclipseCase);

    RimProject*         project(); 

    void                createMockModel();
    void                createResultsMockModel();
    void                createLargeResultsMockModel();
    void                createMockModelCustomized();
    void                createInputMockModel();

    QString             lastUsedDialogDirectory(const QString& dialogName);
    QString             lastUsedDialogDirectoryWithFallback(const QString& dialogName, const QString& fallbackDirectory);
    void                setLastUsedDialogDirectory(const QString& dialogName, const QString& directory);

    bool                openFile(const QString& fileName);

    bool                openOdbCaseFromFile(const QString& fileName);

    QString             currentProjectPath() const;
    QString             createAbsolutePathFromProjectRelativePath(QString projectRelativePath);
    bool                loadProject(const QString& projectFileName);
    bool                loadProject(const QString& projectFileName, ProjectLoadAction loadAction, RiaProjectModifier* projectModifier);
    bool                saveProject();
    bool                saveProjectAs(const QString& fileName);
    bool                saveProjectPromptForFileName();
    static bool         hasValidProjectFileExtension(const QString& fileName);
    
    bool                askUserToSaveModifiedProject();
    void                closeProject();
    
    void                addWellPathsToModel(QList<QString> wellPathFilePaths);
    void                addWellLogsToModel(const QList<QString>& wellLogFilePaths);

    void                runMultiCaseSnapshots(const QString& templateProjectFileName, std::vector<QString> gridFileNames, const QString& snapshotFolderName);
    void                runRegressionTest(const QString& testRootPath);

    void                processNonGuiEvents();

    static const char*  getVersionStringApp(bool includeCrtInfo);

    void                setUseShaders(bool enable);
    bool                useShaders() const;

    void                setShowPerformanceInfo(bool enable);
    bool                showPerformanceInfo() const;

    RINavigationPolicy  navigationPolicy() const;
    QString             scriptDirectories() const;
    QString             scriptEditorPath() const;
    
    QString             octavePath() const;
    QStringList         octaveArguments() const;

    bool                launchProcess(const QString& program, const QStringList& arguments);
    bool                launchProcessForMultipleCases(const QString& program, const QStringList& arguments, const std::vector<int>& caseIds);
    void                terminateProcess();
    void                waitForProcess() const;
    
    RiaPreferences*     preferences();
    void                applyPreferences();

    cvf::Font*          standardFont();
    cvf::Font*          customFont();

    QString             commandLineParameterHelp() const;
    void                showFormattedTextInMessageBox(const QString& text);

    void                setCacheDataObject(const QString& key, const QVariant& dataObject);
    QVariant            cacheDataObject(const QString& key) const;

    void                addCommandObject(RimCommandObject* commandObject);
    void                executeCommandObjects();

    bool                isRunningRegressionTests() const;

    int                 launchUnitTests();
    int                 launchUnitTestsWithConsole();

    RiuMainPlotWindow*  getOrCreateAndShowMainPlotWindow();
    RiuMainPlotWindow*  mainPlotWindow();
    RiuMainWindowBase*  mainWindowByID(int mainWindowID);

    static RimViewWindow* activeViewWindow();

    bool                isMain3dWindowVisible() const;
    bool                isMainPlotWindowVisible() const;

    bool                tryCloseMainWindow();
    bool                tryClosePlotWindow();

    void                  addToRecentFiles(const QString& fileName);
    std::vector<QAction*> recentFileActions() const;

    void                setStartDir(const QString& startDir);

    static std::vector<QString> readFileListFromTextFile(QString listFileName);

    void                    clearViewsScheduledForUpdate();

private:

    void                    onProjectOpenedOrClosed();
    void                    setWindowCaptionFromAppState();

    void                    createMainPlotWindow();
    void                    deleteMainPlotWindow();
    
    void                    loadAndUpdatePlotData();
    
    void                    storeTreeViewState();

    void                    resizeMaximizedPlotWindows();
    void                    updateRegressionTest(const QString& testRootPath);
    void                    regressionTestConfigureProject();
    static QSize            regressionDefaultImageSize();

private slots:
    void                slotWorkerProcessFinished(int exitCode, QProcess::ExitStatus exitStatus);
    void                slotUpdateScheduledDisplayModels();
    void                slotRecaulculateCompletionType();

    // Friend classes required to have access to slotUpdateScheduledDisplayModels
    // As snapshots are produced fast in sequence, the feature must have access to force redraw
    // of scheduled redraws
    friend class RimView;
    friend class RicExportMultipleSnapshotsFeature;

private:
    caf::PdmPointer<RimView>            m_activeReservoirView;

    caf::PdmPointer<RimProject>         m_project;

    std::vector<caf::PdmPointer<RimView> > m_resViewsToUpdate;
    QTimer*                             m_resViewUpdateTimer;
    std::vector<caf::PdmPointer<RimEclipseCase> > m_eclipseCasesToRecalculate;
    QTimer*                             m_recalculateCompletionTypeTimer;

    RiaSocketServer*                    m_socketServer;

    caf::UiProcess*                     m_workerProcess;

    // Execute for all settings
    std::list<int>                      m_currentCaseIds;
    QString                             m_currentProgram;
    QStringList                         m_currentArguments;

    RiaPreferences*                     m_preferences;

    std::map<QString, QString>          m_fileDialogDefaultDirectories;
    QString                             m_startupDefaultDirectory;

    cvf::ref<cvf::Font>                 m_standardFont;
    cvf::ref<cvf::Font>                 m_customFont;

    QMap<QString, QVariant>             m_sessionCache;     // Session cache used to store username/passwords per session

    std::list<RimCommandObject*>        m_commandQueue;
    QMutex                              m_commandQueueLock;

    QString                             m_helpText;
    bool                                m_runningRegressionTests;

    bool                                m_runningWorkerProcess;

    RiuMainPlotWindow*                  m_mainPlotWindow;
    
    std::unique_ptr<RiuRecentFileActionProvider> m_recentFileActionProvider;
};