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#ifndef METADATAJOB_H
#define METADATAJOB_H

#include "downloadfiletask.h"
#include "fileutils.h"
#include "kdjob.h"
#include "repository.h"

#include <QFutureWatcher>

namespace QInstaller {

class PackageManagerCore;

struct Metadata
{
    QString directory;
    Repository repository;
};

class INSTALLER_EXPORT MetadataJob : public KDJob
{
    Q_OBJECT
    Q_DISABLE_COPY(MetadataJob)

    enum Status {
        XmlDownloadRetry,
        XmlDownloadFailure,
        XmlDownloadSuccess
    };

public:
    explicit MetadataJob(QObject *parent = 0);
    ~MetadataJob();

    QList<Metadata> metadata() const { return m_metadata.values(); }
    Repository repositoryForDirectory(const QString &directory) const;
    void setPackageManagerCore(PackageManagerCore *core) { m_core = core; }

private slots:
    void doStart();
    void doCancel();

    void xmlTaskFinished();
    void unzipTaskFinished();
    void metadataTaskFinished();
    void progressChanged(int progress);

private:
    void reset();
    Status parseUpdatesXml(const QList<FileTaskResult> &results);

private:
    PackageManagerCore *m_core;

    QList<FileTaskItem> m_packages;
    TempDirDeleter m_tempDirDeleter;
    QHash<QString, Metadata> m_metadata;
    QFutureWatcher<FileTaskResult> m_xmlTask;
    QFutureWatcher<FileTaskResult> m_metadataTask;
    QHash<QFutureWatcher<void> *, QObject*> m_unzipTasks;
};

}   // namespace QInstaller

#endif  // METADATAJOB_H