<?php
/**
 * PHPWord
 *
 * Copyright (c) 2014 PHPWord
 *
 * 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 2.1 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category   PHPWord
 * @package    PHPWord
 * @copyright  Copyright (c) 2014 PHPWord
 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt    LGPL
 * @version    0.7.0
 */

/**
 * Class PHPWord_IOFactory
 */
class PHPWord_IOFactory
{

    /**
     * Search locations
     *
     * @var array
     */
    private static $_searchLocations = array(
        array('type' => 'IWriter', 'path' => 'PHPWord/Writer/{0}.php', 'class' => 'PHPWord_Writer_{0}'),
        array( 'type' => 'IReader', 'path' => 'PHPWord/Reader/{0}.php', 'class' => 'PHPWord_Reader_{0}' ),
    );

    /**
     * Autoresolve classes
     *
     * @var array
     */
    private static $_autoResolveClasses = array(
        'Serialized'
    );

    /**
     * Private constructor for PHPWord_IOFactory
     */
    private function __construct()
    {
    }

    /**
     * Get search locations
     *
     * @return array
     */
    public static function getSearchLocations()
    {
        return self::$_searchLocations;
    }

    /**
     * Set search locations
     *
     * @param array $value
     * @throws Exception
     */
    public static function setSearchLocations($value)
    {
        if (is_array($value)) {
            self::$_searchLocations = $value;
        } else {
            throw new Exception('Invalid parameter passed.');
        }
    }

    /**
     * Add search location
     *
     * @param string $type Example: IWriter
     * @param string $location Example: PHPWord/Writer/{0}.php
     * @param string $classname Example: PHPWord_Writer_{0}
     */
    public static function addSearchLocation($type = '', $location = '', $classname = '')
    {
        self::$_searchLocations[] = array('type' => $type, 'path' => $location, 'class' => $classname);
    }

    /**
     * Create PHPWord_Writer_IWriter
     *
     * @param PHPWord $PHPWord
     * @param string $writerType Example: Word2007
     * @return PHPWord_Writer_IWriter
     */
    public static function createWriter(PHPWord $PHPWord, $writerType = '')
    {
        $searchType = 'IWriter';

        foreach (self::$_searchLocations as $searchLocation) {
            if ($searchLocation['type'] == $searchType) {
                $className = str_replace('{0}', $writerType, $searchLocation['class']);
                $classFile = str_replace('{0}', $writerType, $searchLocation['path']);

                $instance = new $className($PHPWord);
                if (!is_null($instance)) {
                    return $instance;
                }
            }
        }

        throw new Exception("No $searchType found for type $writerType");
    }

    /**
     * Create PHPWord_Reader_IReader
     *
     * @param   string $readerType  Example: Word2007
     * @return  PHPWord_Reader_IReader
     */
    public static function createReader($readerType = '') {
        $searchType = 'IReader';

        foreach (self::$_searchLocations as $searchLocation) {
            if ($searchLocation['type'] == $searchType) {
                $className = str_replace('{0}', $readerType, $searchLocation['class']);

                $instance = new $className();
                if ($instance !== NULL) {
                    return $instance;
                }
            }
        }

        throw new PHPExcel_Reader_Exception("No $searchType found for type $readerType");
    }

    /**
     * Loads PHPWord from file
     *
     * @param   string  $pFilename The name of the file
     * @return  PHPWord
     */
    public static function load($pFilename, $readerType = 'Word2007') {
        $reader = self::createReader($readerType);
        return $reader->load($pFilename);
    }

}