#ifndef PREFERENCESDIALOG_H
#define PREFERENCESDIALOG_H

#include "Util/qpointervariant.h"

#include <QDialog>
#include <QVariant>
#include <exception>

enum GraphDomainChangeBehavior {
    RemoveChangedTraces = 0,
    AdjustGraphs = 1,
    AdjustGrahpsIfOnlyTrace = 2,
};

Q_DECLARE_METATYPE(GraphDomainChangeBehavior);


class Preferences {
public:
    static Preferences& getInstance() {
        return instance;
    }
    void load();
    void store();
    void edit();
    void setDefault();

    void manualTCPport() { TCPoverride = true; }

    struct {
        bool ConnectToFirstDevice;
        bool RememberSweepSettings;
        struct {
            QString type;
            double f_start;
            double f_stop;
            double f_excitation;

            double dbm_start;
            double dbm_stop;
            double dbm_freq;

            int points;
            double bandwidth;
            int averaging;
        } DefaultSweep;
        struct {
            double frequency;
            double level;
        } Generator;
        struct {
            double start;
            double stop;
            double RBW;
            int window;
            int detector;
            int averaging;
            bool signalID;
        } SA;
    } Startup;
    struct {
        bool alwaysExciteBothPorts;
        bool suppressPeaks;
        bool adjustPowerLevel;
        bool harmonicMixing;
        bool useDFTinSAmode;
        double RBWLimitForDFT;
        bool useMedianAveraging;
    } Acquisition;
    struct {
        bool showUnits;
        struct {
            QColor background;
            QColor axis;
            struct {
                QColor divisions;
                struct {
                    bool enabled;
                    QColor background;
                } Background;
            } Ticks;
        } Color;
        GraphDomainChangeBehavior domainChangeBehavior;
        struct {
            bool showDataOnGraphs;
            bool showAllData;
        } markerBehavior;
        double lineWidth;
    } Graphs;
    struct {
        bool enabled;
        int port;
    } SCPIServer;

    bool TCPoverride; // in case of manual port specification via command line
private:
    Preferences() :
     TCPoverride(false) {};
    static Preferences instance;
    using SettingDescription = struct {
        QPointerVariant var;
        QString name;
        QVariant def;
    };
    const std::array<SettingDescription, 40> descr = {{
        {&Startup.ConnectToFirstDevice, "Startup.ConnectToFirstDevice", true},
        {&Startup.RememberSweepSettings, "Startup.RememberSweepSettings", false},
        {&Startup.DefaultSweep.type, "Startup.DefaultSweep.type", "Frequency"},
        {&Startup.DefaultSweep.f_start, "Startup.DefaultSweep.start", 1000000.0},
        {&Startup.DefaultSweep.f_stop, "Startup.DefaultSweep.stop", 6000000000.0},
        {&Startup.DefaultSweep.f_excitation, "Startup.DefaultSweep.excitation", -10.00},
        {&Startup.DefaultSweep.dbm_start, "Startup.DefaultSweep.dbm_start", -30.00},
        {&Startup.DefaultSweep.dbm_stop, "Startup.DefaultSweep.dbm_stop", -10.0},
        {&Startup.DefaultSweep.dbm_freq, "Startup.DefaultSweep.dbm_freq", 1000000000.0},
        {&Startup.DefaultSweep.points, "Startup.DefaultSweep.points", 501},
        {&Startup.DefaultSweep.bandwidth, "Startup.DefaultSweep.bandwidth", 1000.0},
        {&Startup.DefaultSweep.averaging, "Startup.DefaultSweep.averaging", 1},
        {&Startup.Generator.frequency, "Startup.Generator.frequency", 1000000000.0},
        {&Startup.Generator.level, "Startup.Generator.level", -10.00},
        {&Startup.SA.start, "Startup.SA.start", 950000000.0},
        {&Startup.SA.stop, "Startup.SA.stop", 1050000000.0},
        {&Startup.SA.RBW, "Startup.SA.RBW", 10000.0},
        {&Startup.SA.window, "Startup.SA.window", 1},
        {&Startup.SA.detector, "Startup.SA.detector", 0},
        {&Startup.SA.averaging, "Startup.SA.averaging", 1},
        {&Startup.SA.signalID, "Startup.SA.signalID", true},
        {&Acquisition.alwaysExciteBothPorts, "Acquisition.alwaysExciteBothPorts", true},
        {&Acquisition.suppressPeaks, "Acquisition.suppressPeaks", true},
        {&Acquisition.adjustPowerLevel, "Acquisition.adjustPowerLevel", false},
        {&Acquisition.harmonicMixing, "Acquisition.harmonicMixing", false},
        {&Acquisition.useDFTinSAmode, "Acquisition.useDFTinSAmode", true},
        {&Acquisition.RBWLimitForDFT, "Acquisition.RBWLimitForDFT", 3000.0},
        {&Acquisition.useMedianAveraging, "Acquisition.useMedianAveraging", false},
        {&Graphs.showUnits, "Graphs.showUnits", true},
        {&Graphs.Color.background, "Graphs.Color.background", QColor(Qt::black)},
        {&Graphs.Color.axis, "Graphs.Color.axis", QColor(Qt::white)},
        {&Graphs.Color.Ticks.Background.enabled, "Graphs.Color.Ticks.Background.enabled", true},
        {&Graphs.Color.Ticks.Background.background, "Graphs.Color.Ticks.Background.background", QColor(20, 20, 20)},
        {&Graphs.Color.Ticks.divisions, "Graphs.Color.Ticks.divisions", QColor(Qt::gray)},
        {&Graphs.domainChangeBehavior, "Graphs.domainChangeBehavior", GraphDomainChangeBehavior::AdjustGraphs},
        {&Graphs.markerBehavior.showDataOnGraphs, "Graphs.markerBehavior.ShowDataOnGraphs", true},
        {&Graphs.markerBehavior.showAllData, "Graphs.markerBehavior.ShowAllData", false},
        {&Graphs.lineWidth, "Graphs.lineWidth", 1.0},
        {&SCPIServer.enabled, "SCPIServer.enabled", true},
        {&SCPIServer.port, "SCPIServer.port", 19542},
    }};
};

namespace Ui {
class PreferencesDialog;
}

class PreferencesDialog : public QDialog
{
    Q_OBJECT

public:
    explicit PreferencesDialog(Preferences *pref, QWidget *parent = nullptr);
    ~PreferencesDialog();

private:
    void setInitialGUIState();
    Ui::PreferencesDialog *ui;
    Preferences *p;
};

#endif // PREFERENCESDIALOG_H