<?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;

use PhpOffice\PhpWord\Exception\Exception;
use PhpOffice\PhpWord\PhpWord;

/**
 * RTF writer
 *
 * @since 0.7.0
 */
class RTF extends AbstractWriter implements WriterInterface
{
    /**
     * Last paragraph style
     *
     * @var mixed
     */
    private $lastParagraphStyle;

    /**
     * Create new RTF writer
     * @param \PhpOffice\PhpWord\PhpWord $phpWord
     */
    public function __construct(PhpWord $phpWord = null)
    {
        $this->setPhpWord($phpWord);

        $this->parts = array('Header', 'Document');
        foreach ($this->parts as $partName) {
            $partClass = get_class($this) . '\\Part\\' . $partName;
            if (class_exists($partClass)) {
                /** @var \PhpOffice\PhpWord\Writer\RTF\Part\AbstractPart $part Type hint */
                $part = new $partClass();
                $part->setParentWriter($this);
                $this->writerParts[strtolower($partName)] = $part;
            }
        }

    }

    /**
     * Save PhpWord to file
     *
     * @param string $filename
     * @throws \PhpOffice\PhpWord\Exception\Exception
     */
    public function save($filename = null)
    {
        $content = '';
        $filename = $this->getTempFile($filename);
        $hFile = fopen($filename, 'w');
        if ($hFile !== false) {
            $content .= '{';
            $content .= '\rtf1' . PHP_EOL;
            $content .= $this->getWriterPart('Header')->write();
            $content .= $this->getWriterPart('Document')->write();
            $content .= '}';

            fwrite($hFile, $content);
            fclose($hFile);
        } else {
            throw new Exception("Can't open file");
        }
        $this->cleanupTempFile();
    }

    /**
     * Get font table
     */
    public function getFontTable()
    {
        return $this->getWriterPart('Header')->getFontTable();
    }

    /**
     * Get color table
     */
    public function getColorTable()
    {
        return $this->getWriterPart('Header')->getColorTable();
    }

    /**
     * Get last paragraph style
     */
    public function getLastParagraphStyle()
    {
        return $this->lastParagraphStyle;
    }

    /**
     * Set last paragraph style
     *
     * @param mixed $value
     */
    public function setLastParagraphStyle($value = '')
    {
        $this->lastParagraphStyle = $value;
    }
}