KisSupporterBundlesFetcher.h

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/*
 * SPDX-License-Identifier: GPL-3.0-or-later
 */
#ifndef __KISSUPPORTERBUNDLESFETCHER_H_
#define __KISSUPPORTERBUNDLESFETCHER_H_
 
#include <QFileInfo>
#include <QObject>
#include <QUrl>
#include <QVector>
#include <functional>
 
#include "KisSupporterBundle.h"
 
class KisNetworkAccessManager;
class QNetworkReply;
class QSqlDatabase;
 
class KisSupporterBundlesFetcher : public QObject
{
    Q_OBJECT
public:
    explicit KisSupporterBundlesFetcher(QObject *parent = nullptr);
 
    bool isFetching() const
    {
        return m_fetching;
    }
 
    const QVector<KisSupporterBundle> &bundles() const
    {
        return m_bundles;
    }
 
    void fetchIndex();
 
    QNetworkReply *fetchBundle(const KisSupporterBundle &bundle);
 
    static bool hasNetworkReplyError(QNetworkReply *reply, QString &outErrorMessage);
 
Q_SIGNALS:
    void fetchIndexDone(bool success, const QString &errorMessage);
 
private:
    static constexpr char BASE_URL[] = "https://cdn.kde.org/krita/.android-supporters-extra/supporterbundles/";
 
    void handleCheckTxtFetched(QNetworkReply *reply);
    bool handleCheckTxtPredefinedFailure(const QString &content);
 
    bool checkExistingIndexDb(unsigned int expectedVersion, const QString &expectedHash);
 
    void fetchIndexDb(unsigned int expectedVersion, const QString &expectedHash);
 
    void handleIndexDbFetched(QNetworkReply *reply, unsigned int expectedVersion, const QString &expectedHash);
 
    void readIndexDbBundles();
 
    QNetworkReply *fetch(const QString &path);
 
    void emitCheckTxtFetchFailed(const QString &errorMessage);
    void emitIndexDbFetchFailed(const QString &errorMessage);
    void emitFailure(const QString &errorMessage);
 
    bool doWithIndexDb(QString &outErrorMessage, const std::function<bool(QSqlDatabase &, QString &)> &block);
 
    static bool readSqliteUserVersion(const QByteArray &bytes, unsigned int &outVersion);
 
    KisNetworkAccessManager *m_nam = nullptr;
    QString m_indexDbPath;
    QVector<KisSupporterBundle> m_bundles;
    bool m_fetching = false;
};
 
#endif