/*************************************************************************
 *  Copyright (C) 2008, 2010 by Volker Lanz <vl@fidra.de>                *
 *  Copyright (C) 2016 by Andrius Štikonas <andrius@stikonas.eu>         *
 *                                                                       *
 *  This program is free software; you can redistribute it and/or        *
 *  modify it under the terms of the GNU General Public License as       *
 *  published by the Free Software Foundation; either version 3 of       *
 *  the License, or (at your option) any later version.                  *
 *                                                                       *
 *  This program 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 General Public License for more details.                         *
 *                                                                       *
 *  You should have received a copy of the GNU General Public License    *
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.*
 *************************************************************************/

#include "jobs/setpartflagsjob.h"

#include "backend/corebackend.h"
#include "backend/corebackendmanager.h"
#include "backend/corebackenddevice.h"
#include "backend/corebackendpartition.h"
#include "backend/corebackendpartitiontable.h"

#include "core/device.h"
#include "core/partition.h"
#include "core/partitionrole.h"
#include "core/partitiontable.h"

#include "util/report.h"

#include <KLocalizedString>

/** Creates a new SetPartFlagsJob
    @param d the Device the Partition whose flags are to be set is on
    @param p the Partition whose flags are to be set
    @param flags the new flags for the Partition
*/
SetPartFlagsJob::SetPartFlagsJob(Device& d, Partition& p, PartitionTable::Flags flags) :
    Job(),
    m_Device(d),
    m_Partition(p),
    m_Flags(flags)
{
}

qint32 SetPartFlagsJob::numSteps() const
{
    return PartitionTable::flagList().size();
}

bool SetPartFlagsJob::run(Report& parent)
{
    bool rval = true;

    Report* report = jobStarted(parent);

    CoreBackendDevice* backendDevice = CoreBackendManager::self()->backend()->openDevice(device().deviceNode());

    if (backendDevice) {
        CoreBackendPartitionTable* backendPartitionTable = backendDevice->openPartitionTable();

        if (backendPartitionTable) {
            CoreBackendPartition* backendPartition = (partition().roles().has(PartitionRole::Extended))
                    ? backendPartitionTable->getExtendedPartition()
                    : backendPartitionTable->getPartitionBySector(partition().firstSector());

            if (backendPartition) {
                int count = 0;

                for (const auto &f : PartitionTable::flagList()) {
                    emit progress(++count);

                    const bool oldState = (partition().activeFlags() & f) ? true : false;
                    const bool state = (flags() & f) ? true : false;
                    if (oldState == state)
                        continue;

                    if (!backendPartition->setFlag(*report, f, state)) {
                        report->line() << xi18nc("@info:progress", "There was an error setting flag %1 for partition <filename>%2</filename> to state %3.", PartitionTable::flagName(f), partition().deviceNode(), state ? xi18nc("@info:progress flag turned on, active", "on") : xi18nc("@info:progress flag turned off, inactive", "off"));

                        rval = false;
                    }
                }

                delete backendPartition;
            } else {
                report->line() << xi18nc("@info:progress", "Could not find partition <filename>%1</filename> on device <filename>%2</filename> to set partition flags.", partition().deviceNode(), device().deviceNode());
                rval = false;
            }

            if (rval)
                backendPartitionTable->commit();

            delete backendPartitionTable;
        } else
            report->line() << xi18nc("@info:progress", "Could not open partition table on device <filename>%1</filename> to set partition flags for partition <filename>%2</filename>.", device().deviceNode(), partition().deviceNode());

        delete backendDevice;
    } else
        report->line() << xi18nc("@info:progress", "Could not open device <filename>%1</filename> to set partition flags for partition <filename>%2</filename>.", device().deviceNode(), partition().deviceNode());

    if (rval)
        partition().setFlags(flags());

    jobFinished(*report, rval);

    return rval;
}

QString SetPartFlagsJob::description() const
{
    if (PartitionTable::flagNames(flags()).size() == 0)
        return xi18nc("@info:progress", "Clear flags for partition <filename>%1</filename>", partition().deviceNode());

    return xi18nc("@info:progress", "Set the flags for partition <filename>%1</filename> to \"%2\"", partition().deviceNode(), PartitionTable::flagNames(flags()).join(QStringLiteral(",")));
}
