/*
 * 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:
*/