card_picture_loader_worker_work.h

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#ifndef PICTURE_LOADER_WORKER_WORK_H
#define PICTURE_LOADER_WORKER_WORK_H
 
#include "card_picture_to_load.h"
 
#include <QImage>
#include <QLoggingCategory>
#include <QObject>
#include <QString>
#include <qtmetamacros.h>
 
class ExactCard;
class QNetworkReply;
class QUrl;
class ServerRateLimiter;
 
inline Q_LOGGING_CATEGORY(CardPictureLoaderWorkerWorkLog, "card_picture_loader.worker");
 
class CardPictureLoaderWorker;

class CardPictureLoaderWorkerWork : public QObject
{
    Q_OBJECT
public:
    explicit CardPictureLoaderWorkerWork(CardPictureLoaderWorker *worker, const ExactCard &toLoad);
 
    CardPictureToLoad cardToDownload; 

    static const ServerRateLimiter &rateLimiter();

    void startNextPicDownload();

    void scheduleDeferredRetry(const QString &preferredHost = {});
 
public slots:
    void handleNetworkReply(QNetworkReply *reply);
 
private:
    bool picDownload; 
 
    static ServerRateLimiter s_rateLimiter; 

    void picDownloadFailed();

    void handleFailedReply(const QNetworkReply *reply);

    void handleSuccessfulReply(QNetworkReply *reply);

    QImage tryLoadImageFromReply(QNetworkReply *reply);

    void concludeImageLoad(const QImage &image);
 
private slots:
    void picDownloadChanged();
 
signals:
    void imageLoaded(const ExactCard &card, const QImage &image);

    void requestSucceeded(const QUrl &url);

    void requestImageDownload(const QUrl &url, CardPictureLoaderWorkerWork *instance);

    void urlRedirected(const QUrl &originalUrl, const QUrl &redirectUrl);

    void rateLimited(const QString &host);

    void cachedUrlInvalidated(const QUrl &url);
};
 
#endif // PICTURE_LOADER_WORKER_WORK_H