MapManager.h

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#ifndef OSMSCOUT_CLIENT_QT_MAPMANAGER_H
#define OSMSCOUT_CLIENT_QT_MAPMANAGER_H

/*
  OSMScout - a Qt backend for libosmscout and libosmscout-map
  Copyright (C) 2016 Lukas Karas

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
*/

#include <QObject>
#include <QStringList>
#include <QList>
#include <QDir>
#include <QTimer>

#include <osmscout/ClientQtImportExport.h>

#include <osmscout/MapProvider.h>
#include <osmscout/Settings.h>
#include <osmscout/AvailableMapsModel.h>
#include <osmscout/FileDownloader.h>

#include <QtGlobal>
#include <QStorageInfo>

namespace osmscout {

class OSMSCOUT_CLIENT_QT_API MapDownloadJob: public DownloadJob
{
  Q_OBJECT

  AvailableMapsModelMap   map;

public:
  static const char* FILE_METADATA;

  MapDownloadJob(QNetworkAccessManager *webCtrl, AvailableMapsModelMap map, QDir target, bool replaceExisting);

  ~MapDownloadJob() override;

  void start();

  inline QString getMapName() const
  {
    return map.getName();
  }

  inline QStringList getMapPath() const
  {
    return map.getPath();
  }

  inline uint64_t expectedSize() const override
  {
    return map.getSize();
  }
};

class OSMSCOUT_CLIENT_QT_API MapDirectory
{
public:
  MapDirectory() = default;
  explicit MapDirectory(QDir dir);
  ~MapDirectory() = default;

  MapDirectory(const MapDirectory &other) = default;
  MapDirectory &operator=(const MapDirectory &other) = default;

  MapDirectory(MapDirectory &&other) = default;
  MapDirectory &operator=(MapDirectory &&other) = default;

  QDir getDir() const
  {
    return dir;
  }

  bool deleteDatabase();

  bool isValid() const
  {
    return valid;
  }

  bool hasMetadata() const
  {
    return metadata;
  }

  QString getName() const
  {
    return name;
  }

  QStringList getPath() const
  {
    return path;
  }

  inline QDateTime getCreation() const
  {
    return creation;
  }

  inline bool operator<(const MapDirectory &o) const
  {
    if (getName() == o.getName()){
      return getDir().absolutePath() < o.getDir().absolutePath();
    }
    return getName() < o.getName();
  }

private:
  QDir dir;
  bool valid{false};
  bool metadata{false};
  QString name;
  QStringList path;
  QDateTime creation;
};

class OSMSCOUT_CLIENT_QT_API MapManager: public QObject
{
  Q_OBJECT

private:
  QStringList databaseLookupDirs;
  QList<MapDirectory> databaseDirectories;
  QList<MapDownloadJob*> downloadJobs;
  QNetworkAccessManager webCtrl;

public slots:
  void lookupDatabases();
  void onJobFinished();
  void onJobFailed(QString errorMessage);

signals:
  void mapDownloadFails(QString message);
  void databaseListChanged(QList<QDir> databaseDirectories);
  void downloadJobsChanged();

public:
  MapManager(QStringList databaseLookupDirs, SettingsRef settings);

  ~MapManager() override;

  void downloadMap(AvailableMapsModelMap map, QDir dir, bool replaceExisting = true);
  void downloadNext();

  inline QList<MapDownloadJob*> getDownloadJobs() const {
    return downloadJobs;
  }

  inline QStringList getLookupDirectories() const
  {
    return databaseLookupDirs;
  }

  inline QList<MapDirectory> getDatabaseDirectories() const
  {
    return databaseDirectories;
  }
};

using MapManagerRef = std::shared_ptr<MapManager>;

}

#endif  /* OSMSCOUT_CLIENT_QT_MAPMANAGER_H */