newssite.h

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#ifndef NEWSSITE_H
#define NEWSSITE_H
 
// C++ headers
#include <vector>
 
// QT headers
#include <QByteArray>
#include <QDateTime>
#include <QDomDocument>
#include <QObject>
#include <QString>
#include <QUrl>
#include <QVariant>
#if QT_VERSION < QT_VERSION_CHECK(5,14,0)
#include <QMutex>
#else
#include <QRecursiveMutex>
#endif
 
// MythTV headers
#include <libmythbase/stringutil.h>
 
// MythNews headers
#include "newsarticle.h"
 
class NewsSiteItem
{
  public:
    using List = std::vector<NewsSiteItem>;
 
    QString m_name;
    QString m_category;
    QString m_url;
    QString m_ico;
    bool    m_inDB    { false };
    bool    m_podcast { false };
};
Q_DECLARE_METATYPE(NewsSiteItem*)
 
class NewsCategory
{
  public:
    using List = std::vector<NewsCategory>;
 
    QString             m_name;
    NewsSiteItem::List  m_siteList;
 
    void clear(void) { m_siteList.clear(); }
};
Q_DECLARE_METATYPE(NewsCategory*)
 
class NewsSite;
class NewsSite : public QObject
{
    Q_OBJECT
 
  public:
 
    enum State {
        Retrieving = 0,
        RetrieveFailed,
        WriteFailed,
        Success
    };
 
    class List : public std::vector<NewsSite*>
    {
      public:
        void clear(void)
        {
            while (!empty())
            {
                NewsSite *tmp = back();
                pop_back();
                tmp->deleteLater();
            }
        }
    };
 
    NewsSite(QString   name,    const QString &url,
             QDateTime updated, bool     podcast);
    virtual void deleteLater();
 
    void customEvent(QEvent *event) override; // QObject
 
    QString   url(void)  const;
    QString   name(void) const;
    QString   sortName(void) const;
    QString   description(void) const;
    QDateTime lastUpdated(void) const;
    QString   imageURL(void) const;
    bool      podcast(void) const;
    std::chrono::minutes timeSinceLastUpdate(void) const;
 
    void insertNewsArticle(const NewsArticle &item);
    void clearNewsArticles(void);
 
    NewsArticle::List GetArticleList(void) const;
 
    void retrieve(void);
    void stop(void);
    void process(void);
    void parseRSS(const QDomDocument& domDoc);
    void parseAtom(const QDomDocument& domDoc);
    static inline bool sortByName(NewsSite *a, NewsSite *b)
        { return StringUtil::naturalCompare(a->m_sortName, b->m_sortName) < 0; }
 
    bool     successful(void) const;
    QString  errorMsg(void) const;
 
  private:
    ~NewsSite() override;
 
#if QT_VERSION < QT_VERSION_CHECK(5,14,0)
    mutable QMutex m_lock {QMutex::Recursive};
#else
    mutable QRecursiveMutex m_lock;
#endif
    QString    m_name;
    QString    m_sortName;
    QString    m_url;
    QUrl       m_urlReq;
    QString    m_desc;
    QDateTime  m_updated;
    QString    m_destDir;
    QByteArray m_data;
    State      m_state    {NewsSite::Success};
    QString    m_errorString;
    QString    m_updateErrorString;
    QString    m_imageURL;
    bool       m_podcast;
 
    NewsArticle::List m_articleList;
    static QString ReplaceHtmlChar(const QString &orig);
 
  signals:
 
    void finished(NewsSite *item);
};
Q_DECLARE_METATYPE(NewsSite*)
 
#endif // NEWSSITE_H