/*
 * @RDE_HEADER@
 * Copy exercise from server to evaluation server
 * $Id$
 * $HeadURL$
 * $Author$
 * Created by Christian Ehrlicher, NLSE, 2018-07-31
 */

#pragma once

#include <QObject>
#include <QProcess>

#include "logger.h"

namespace OcBaseDownload
{
class CopyDatabase : public QObject
{
  Q_OBJECT
public:
  explicit CopyDatabase(NGL::INGLLogger &logger, QObject *parent = nullptr);

  bool init(const QString &dbHost, const QString &srcDbName, const QString &dstDbName);
  bool doCopy();

  bool dropDatabase(const QString &dbName);

Q_SIGNALS:
  void copyDbFailed();
  void copyDbFinished();
  void dropDatabaseFailed();
  void dropDatabaseFinished();
private:
  bool runDropDb(const QString &dbName);
  void onDropDbFinished(int exitCode, QProcess::ExitStatus exitStatus);
  void runGrant();
  bool runPgDump();
  void onPgDumpFinished(int exitCode, QProcess::ExitStatus exitStatus);
  void runCreatedb();
  void onCreateDbFinished(int exitCode, QProcess::ExitStatus exitStatus);
  void runPgLoad();
  void onPgLoadFinished(int exitCode, QProcess::ExitStatus exitStatus);
  void runPgSetGrant();
  void onPgSetGrantFinished(int exitCode, QProcess::ExitStatus exitStatus);
  QString getDumpFile() const;

  void handleProcInit(const QString &program, const QStringList &args);
  void handleProcFinished(int exitCode, QProcess::ExitStatus exitStatus);
  void onErrorOccured(QProcess::ProcessError error);

  QString executablePath(const QString &program);
private:
  QString          m_dbHost;
  QString          m_srcDbName;
  QString          m_dstDbName;
  QProcess        *m_proc;

  NGL::INGLLogger &m_logger;
};
} // namespace OcBaseDownload