netgrabbermanager.h

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#ifndef NETGRABBERMANAGER_H
#define NETGRABBERMANAGER_H
 
#include <QObject>
#include <QEvent>
#include <QDomElement>
#include <QMetaType>
#include <QMutex>
#if QT_VERSION >= QT_VERSION_CHECK(5,14,0)
#include <QRecursiveMutex>
#endif
#include <QTimer>
 
#include "libmyth/mythexp.h"
#include "libmyth/rssparse.h"
#include "libmythbase/mthread.h"
#include "libmythbase/mythsystemlegacy.h"
 
class MPUBLIC GrabberScript : public QObject, public MThread
{
 
    Q_OBJECT
 
  public:
 
    GrabberScript(const QString& title,
                  const QString& image,
                  ArticleType type,
                  const QString& author,
                  bool search,
                  bool tree,
                  const QString& description,
                  const QString& commandline,
                  double version);
    ~GrabberScript() override;
 
    const QString& GetTitle() const { return m_title; }
    const QString& GetImage() const { return m_image; }
    const ArticleType& GetType() const { return m_type; }
    const QString& GetAuthor() const { return m_author; }
    const bool& GetSearch() const { return m_search; }
    const bool& GetTree() const { return m_tree; }
    const QString& GetDescription() const { return m_description; }
    const QString& GetCommandline() const { return m_commandline; }
    const double& GetVersion() const { return m_version; }
 
    void run(void) override; // MThread
 
    using scriptList = QList<GrabberScript *>;
 
  signals:
 
    void finished(void);
 
  private:
 
    void parseDBTree(const QString &feedtitle, const QString &path,
                     const QString &pathThumb, QDomElement& domElem,
                     ArticleType type);
#if QT_VERSION < QT_VERSION_CHECK(5,14,0)
    mutable QMutex m_lock {QMutex::Recursive};
#else
    mutable QRecursiveMutex m_lock;
#endif
 
    QString     m_title;
    QString     m_image;
    ArticleType m_type;
    QString     m_author;
    bool        m_search;
    bool        m_tree;
    QString     m_description;
    QString     m_commandline;
    double      m_version;
};
Q_DECLARE_METATYPE(GrabberScript *);
 
class MPUBLIC GrabberManager : public QObject
{
    Q_OBJECT
 
  public:
    GrabberManager();
    ~GrabberManager() override;
    void startTimer();
    void stopTimer();
    void doUpdate();
    void refreshAll();
 
  signals:
    void finished(void);
 
  private slots:
    void timeout(void);
 
  private:
 
#if QT_VERSION < QT_VERSION_CHECK(5,14,0)
    mutable QMutex                 m_lock         {QMutex::Recursive};
#else
    mutable QRecursiveMutex        m_lock;
#endif
    QTimer                        *m_timer        {nullptr};
    GrabberScript::scriptList      m_scripts;
    std::chrono::hours             m_updateFreq   {24h};
    uint                           m_runningCount {0};
    bool                           m_refreshAll   {false};
};
 
const int kGrabberUpdateEventType = QEvent::User + 5000;
 
class MPUBLIC GrabberUpdateEvent : public QEvent
{
  public:
    GrabberUpdateEvent(void)
         : QEvent((QEvent::Type)kGrabberUpdateEventType) {}
    ~GrabberUpdateEvent() override = default;
};
 
class MPUBLIC GrabberDownloadThread : public QObject, public MThread
{
    Q_OBJECT
 
  public:
 
    explicit GrabberDownloadThread(QObject *parent);
    ~GrabberDownloadThread() override;
    
    void refreshAll();
    void cancel();
 
  signals:
    void finished();
 
  protected:
 
    void run() override; // MThread
 
  private:
 
    QObject               *m_parent     {nullptr};
    QList<GrabberScript*>  m_scripts;
    QMutex                 m_mutex;
    bool                   m_refreshAll {false};
 
};
 
class MPUBLIC Search : public QObject
{
    friend class MRSSParser;
    Q_OBJECT
 
  public:
 
    Search();
    ~Search() override;
 
    void resetSearch(void);
    void executeSearch(const QString &script, const QString &query,
                       const QString &pagenum = "");
    void process(void);
 
    QByteArray GetData() { return m_data; };
    void SetData(QByteArray data);
 
    uint numResults() const { return m_numResults; };
    uint numReturned() const { return m_numReturned; };
    uint numIndex() const { return m_numIndex; };
    QString nextPageToken() { return m_nextPageToken; }
    QString prevPageToken() { return m_prevPageToken; }
 
    ResultItem::resultList GetVideoList() { return m_videoList; };
 
  private:
 
    MythSystemLegacy       *m_searchProcess {nullptr};
 
    QByteArray              m_data;
    QDomDocument            m_document;
    ResultItem::resultList  m_videoList;
 
    uint                    m_numResults    {0};
    uint                    m_numReturned   {0};
    uint                    m_numIndex      {0};
 
    QString m_nextPageToken;
    QString m_prevPageToken;
 
  signals:
 
    void finishedSearch(Search *item);
    void searchTimedOut(Search *item);
 
  private slots:
    void slotProcessSearchExit(uint exitcode);
    void slotProcessSearchExit(void);
};
 
#endif