transponderdatabase.hh

#ifndef TRANSPONDERDATABASE_HH
#define TRANSPONDERDATABASE_HH
 
#include <QAbstractTableModel>
#include <QNetworkAccessManager>
 
#include "frequency.hh"
 

struct Transponder
{
 
public:
  enum class Type {
    Transponder,  
    Transmitter   
  };

  enum class Mode {
    FM,   
    CW,   
    APRS, 
    BPSK  
  };
 
public:
  Transponder();

  bool isValid() const;

  unsigned int satellite() const;
  Type type() const;
  Mode mode() const;

  const QString &name() const;

  const Frequency &uplink() const;
  const Frequency &downlink() const;
 
public:
  static Transponder fromSATNOGS(const QJsonObject &obj);
 
protected:
  unsigned int _satellite;
  Type _type;
  Mode _mode;
  QString _name;
  Frequency _downlink;
  Frequency _uplink;
};
 
 

class TransponderDatabase : public QAbstractTableModel
{
  Q_OBJECT
 
public:
  typedef QVector<Transponder>::const_iterator const_iterator;
 
public:
  explicit TransponderDatabase(bool autoLoad, unsigned int updatePeriod = 7, QObject *parent = nullptr);

  unsigned int dbAge() const;

  const Transponder &getAt(unsigned int idx) const;

  int rowCount(const QModelIndex &parent) const;
  int columnCount(const QModelIndex &parent) const;
  QVariant data(const QModelIndex &index, int role) const;

  const_iterator begin() const;
  const_iterator end() const;
 
public slots:
  void load();
 
signals:
  void loaded();
  void error(const QString &msg);
 
public slots:
  void download();
 
private slots:
  void downloadFinished(QNetworkReply *reply);
 
protected:
  bool load(const QString &filename);
 
private:
  unsigned int _updatePeriod;
  QVector<Transponder>  _transponders;
  QNetworkAccessManager _network;
 
};
 
#endif // TRANSPONDERDATABASE_HH