/*

 * libopenraw - tiffepfile.cpp

 *

 * Copyright (C) 2007-2017 Hubert Figuière

 *

 * 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 3 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, see

 * <http://www.gnu.org/licenses/>.

 */

#include <vector>

#include <algorithm>

#include <memory>

#include <libopenraw/debug.h>

#include "rawfile.hpp"

#include "trace.hpp"

#include "tiffepfile.hpp"

#include "ifddir.hpp"

#include "ifdfilecontainer.hpp"

using namespace Debug;

namespace OpenRaw {

namespace Internals {

TiffEpFile::TiffEpFile(const IO::Stream::Ptr &s,

                       Type _type)

    : IfdFile(s, _type)

{

}

IfdDir::Ref  TiffEpFile::_locateCfaIfd()

{

    const IfdDir::Ref & _mainIfd = mainIfd();

    if (!_mainIfd) {

        LOGDBG1("couldn't find main ifd\n");

        return IfdDir::Ref();

    }

    if (_mainIfd->isPrimary()) {

        return _mainIfd;

    }

    auto result = _mainIfd->getSubIFDs();

    if (result.empty()) {

        // error

        LOGDBG1("couldn't find main ifd nor subifds\n");

        return IfdDir::Ref();

    }

    std::vector<IfdDir::Ref> subdirs = result.unwrap();

    auto i = find_if(subdirs.cbegin(),

                     subdirs.cend(),

                     [] (const IfdDir::Ref& e) {

                         return e->isPrimary();

                     });

    if (i != subdirs.cend()) {

        return *i;

    }

    LOGDBG1("couldn't find a primary subifd\n");

    return IfdDir::Ref();

}

IfdDir::Ref  TiffEpFile::_locateMainIfd()

{

    return m_container->setDirectory(0);

}

}

}

/*

  Local Variables:

  mode:c++

  c-file-style:"stroustrup"

  c-file-offsets:((innamespace . 0))

  indent-tabs-mode:nil

  fill-column:80

  End:

*/