<?php
/**
 * This file is part of PHPWord - A pure PHP library for reading and writing
 * word processing documents.
 *
 * PHPWord is free software distributed under the terms of the GNU Lesser
 * General Public License version 3 as published by the Free Software Foundation.
 *
 * For the full copyright and license information, please read the LICENSE
 * file that was distributed with this source code. For the full list of
 * contributors, visit https://github.com/PHPOffice/PHPWord/contributors.
 *
 * @link        https://github.com/PHPOffice/PHPWord
 * @copyright   2010-2014 PHPWord contributors
 * @license     http://www.gnu.org/licenses/lgpl.txt LGPL version 3
 */

namespace PhpOffice\PhpWord\Writer\Word2007\Element;

/**
 * Field element writer
 *
 * @since 0.10.0
 */
class Field extends Text
{
    /**
     * Write field element
     */
    public function write()
    {
        $xmlWriter = $this->getXmlWriter();
        $element = $this->getElement();
        if (!$element instanceof \PhpOffice\PhpWord\Element\Field) {
            return;
        }

        $instruction=' '.$element->getType().' ';
        $properties=$element->getProperties();
        foreach ($properties as $propkey => $propval) {
            switch ($propkey) {
                case 'format':
                    $instruction.='\* '.$propval.' ';
                    break;
                case 'numformat':
                    $instruction.='\* '.$propval.' ';
                    break;
                case 'dateformat':
                    $instruction.='\@ "'.$propval.'" ';
                    break;
            }
        }
        
        $options=$element->getOptions();
        foreach ($options as $option) {
            switch ($option) {
                case 'PreserveFormat':
                    $instruction.='\* MERGEFORMAT ';
                    break;
                case 'LunarCalendar':
                    $instruction.='\h ';
                    break;
                case 'SakaEraCalendar':
                    $instruction.='\s ';
                    break;
                case 'LastUsedFormat':
                    $instruction.='\l ';
                    break;
            }
        }
        $this->writeOpeningWP();
        $xmlWriter->startElement('w:fldSimple');
        $xmlWriter->writeAttribute('w:instr', $instruction);
        $xmlWriter->startElement('w:r');
        $xmlWriter->startElement('w:rPr');
        $xmlWriter->startElement('w:noProof');
        $xmlWriter->endElement(); // w:noProof
        $xmlWriter->endElement(); // w:rPr
        
        $xmlWriter->startElement('w:t');
        $xmlWriter->writeRaw('1');
        $xmlWriter->endElement(); // w:t
        $xmlWriter->endElement(); // w:r
        $xmlWriter->endElement(); // w:fldSimple

        $this->writeClosingWP();
    }
}