wavelength_state_manager.h

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#ifndef WAVELENGTH_STATE_MANAGER_H
#define WAVELENGTH_STATE_MANAGER_H
 
#include <QObject>
#include <QVariant>
 
struct WavelengthInfo;

class WavelengthStateManager final : public QObject {
    Q_OBJECT
 
public:
    static WavelengthStateManager *GetInstance() {
        static WavelengthStateManager instance;
        return &instance;
    }

    static WavelengthInfo GetWavelengthInfo(const QString &frequency, bool *is_host = nullptr);

    static QString GetActiveWavelength();

    void SetActiveWavelength(const QString &frequency);

    static bool IsActiveWavelengthHost();

    QList<QString> GetJoinedWavelengths();

    void RegisterJoinedWavelength(const QString &frequency);

    void UnregisterJoinedWavelength(const QString &frequency);

    int GetJoinedWavelengthCount();

    static bool IsWavelengthPasswordProtected(const QString &frequency);

    static bool IsWavelengthHost(const QString &frequency);

    static QDateTime GetWavelengthCreationTime(const QString &frequency);

    static bool IsWavelengthJoined(const QString &frequency);

    static bool IsWavelengthConnected(const QString &frequency);

    void AddActiveSessionData(const QString &frequency, const QString &key, const QVariant &value);

    QVariant GetActiveSessionData(const QString &frequency, const QString &key,
                                  const QVariant &default_value = QVariant());

    void ClearSessionData(const QString &frequency);

    void ClearAllSessionData();

    bool IsConnecting(const QString &frequency) const;

    void SetConnecting(const QString &frequency, bool connecting);
 
signals:
    void activeWavelengthChanged(QString frequency);
 
private:
    explicit WavelengthStateManager(QObject *parent = nullptr) : QObject(parent) {
    }

    ~WavelengthStateManager() override = default;

    WavelengthStateManager(const WavelengthStateManager &) = delete;

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

    QMap<QString, QMap<QString, QVariant> > session_data_{};
    QList<QString> connecting_wavelengths_{};
    QList<QString> joined_wavelengths_{};
};
 
#endif // WAVELENGTH_STATE_MANAGER_H