/*
 *
 *  Copyright (C) 2015-2019, Open Connections GmbH
 *  All rights reserved.  See COPYRIGHT file for details.
 *
 *  This software and supporting documentation are maintained by
 *
 *    OFFIS e.V.
 *    R&D Division Health
 *    Escherweg 2
 *    D-26121 Oldenburg, Germany
 *
 *
 *  Module:  dcmfg
 *
 *  Author:  Michael Onken
 *
 *  Purpose: Class for managing Plane Orientation (Patient) Functional Group
 *
 */

#include "dcmtk/config/osconfig.h"

#include "dcmtk/dcmdata/dcdeftag.h"
#include "dcmtk/dcmfg/fgfact.h"
#include "dcmtk/dcmfg/fgplanor.h"
#include "dcmtk/dcmiod/iodutil.h"

FGPlaneOrientationPatient::FGPlaneOrientationPatient()
    : FGBase(DcmFGTypes::EFG_PLANEORIENTPATIENT)
    , m_ImageOrientationPatient(DCM_ImageOrientationPatient)
{
}

/// clear old values
void FGPlaneOrientationPatient::clearData()
{
    m_ImageOrientationPatient.clear();
}

OFCondition FGPlaneOrientationPatient::check() const
{
    // Checks in read() and write() are sufficient for now
    return EC_Normal;
}

FGBase* FGPlaneOrientationPatient::clone() const
{
    FGPlaneOrientationPatient* copy = new FGPlaneOrientationPatient();
    if (copy)
    {
        copy->m_ImageOrientationPatient = this->m_ImageOrientationPatient;
    }
    return copy;
}

FGPlaneOrientationPatient* FGPlaneOrientationPatient::createMinimal(const OFString& imageOrientationPatientRowX,
                                                                    const OFString& imageOrientationPatientRowY,
                                                                    const OFString& imageOrientationPatientRowZ,
                                                                    const OFString& imageOrientationPatientColX,
                                                                    const OFString& imageOrientationPatientColY,
                                                                    const OFString& imageOrientationPatientColZ)
{
    FGPlaneOrientationPatient* fg
        = OFstatic_cast(FGPlaneOrientationPatient*, FGFactory::instance().create(DcmFGTypes::EFG_PLANEORIENTPATIENT));
    if (fg)
    {
        OFCondition result = fg->setImageOrientationPatient(imageOrientationPatientRowX,
                                                            imageOrientationPatientRowY,
                                                            imageOrientationPatientRowZ,
                                                            imageOrientationPatientColX,
                                                            imageOrientationPatientColY,
                                                            imageOrientationPatientColZ);
        if (result.bad())
        {
            DCMFG_ERROR("Could not create new FGPlaneOrientationPatient: Invalid data for Image Orientation Patient: "
                        << result.text());
            delete fg;
            return NULL;
        }
    }
    return fg;
}

/// Read from Plane Position Sequence
OFCondition FGPlaneOrientationPatient::read(DcmItem& item)
{
    clearData();

    DcmItem* seqItem   = NULL;
    OFCondition result = getItemFromFGSequence(item, DCM_PlaneOrientationSequence, 0, seqItem);
    if (result.bad())
        return result;

    DcmIODUtil::getAndCheckElementFromDataset(
        *seqItem, m_ImageOrientationPatient, "6", "1C", "PlaneOrientationPatient");

    return EC_Normal;
}

OFCondition FGPlaneOrientationPatient::write(DcmItem& item)
{
    DcmItem* seqItem   = NULL;
    OFCondition result = createNewFGSequence(item, DCM_PlaneOrientationSequence, 0, seqItem);
    if (result.bad())
        return result;

    // --- write plane position (patient) attributes ---
    DcmIODUtil::copyElementToDataset(result, *seqItem, m_ImageOrientationPatient, "6", "1C", "PlaneOrientationPatient");

    return result;
}

int FGPlaneOrientationPatient::compare(const FGBase& rhs) const
{
    int result = FGBase::compare(rhs);
    if (result == 0)
    {
        const FGPlaneOrientationPatient* myRhs = OFstatic_cast(const FGPlaneOrientationPatient*, &rhs);
        if (!myRhs)
            return -1;

        // Compare all elements
        result = m_ImageOrientationPatient.compare(myRhs->m_ImageOrientationPatient);
    }

    return result;
}

OFCondition FGPlaneOrientationPatient::getImageOrientationPatient(OFString& value, const signed long pos = 0)

{
    return DcmIODUtil::getStringValueFromElement(m_ImageOrientationPatient, value, pos);
}

OFCondition FGPlaneOrientationPatient::getImageOrientationPatient(
    Float64& rowX, Float64& rowY, Float64& rowZ, Float64& colX, Float64& colY, Float64& colZ)
{
    OFCondition result = m_ImageOrientationPatient.getFloat64(rowX, 0);
    if (result.good())
        m_ImageOrientationPatient.getFloat64(rowY, 1);
    if (result.good())
        m_ImageOrientationPatient.getFloat64(rowZ, 2);
    if (result.good())
        m_ImageOrientationPatient.getFloat64(colX, 3);
    if (result.good())
        m_ImageOrientationPatient.getFloat64(colY, 4);
    if (result.good())
        m_ImageOrientationPatient.getFloat64(colZ, 5);
    return result;
}

OFCondition FGPlaneOrientationPatient::setImageOrientationPatient(const OFString& rowX,
                                                                  const OFString& rowY,
                                                                  const OFString& rowZ,
                                                                  const OFString& colX,
                                                                  const OFString& colY,
                                                                  const OFString& colZ,
                                                                  const OFBool checkValue)
{
    OFString str(rowX);
    str += "\\";
    str += rowY;
    str += "\\";
    str += rowZ;
    str += "\\";
    str += colX;
    str += "\\";
    str += colY;
    str += "\\";
    str += colZ;

    OFCondition result = (checkValue) ? DcmDecimalString::checkStringValue(str, "6") : EC_Normal;
    if (result.good())
        result = m_ImageOrientationPatient.putOFStringArray(str);
    return result;
}

FGPlaneOrientationPatient::~FGPlaneOrientationPatient()
{
    // nothing to do
}