CrossKnowledge/SubConverterBundle

<?php

namespace CrossKnowledge\SubConverterBundle\Providers;

/**
 * Handle creation of subtitles instances
 */
class SubtitlesFactory
{
    /**
     * Return right converter for a given type
     *
     * @param $type
     * @return bool|SubRipSubtitles|Ttaf1Subtitles|TxtSubtitles|WebVttSubtitles
     */
    public static function getInstance($type)
    {
        switch ($type) {
            case 'SubRipSubtitles':
                return new SubRipSubtitles();
            case 'Ttaf1Subtitles':
                return new Ttaf1Subtitles();
            case 'TxtSubtitles':
                return new TxtSubtitles();
            case 'WebVttSubtitles':
                return new WebVttSubtitles();
            default:
                return false;
        }
    }

    /**
     * Get a Subtitles instance from the given file.
     * Returns null if the file could not be recognized.
     *
     * @param string $filename
     * @return Subtitles
     */
    public static function getInstanceFromFile($filename)
    {
        $implementations = self::getImplementations();

        foreach($implementations as $type)
        {
            $instance = self::getInstance($type);
            if ($instance->checkFormat($filename))
                return $instance;
        }

        return null;
    }

    /**
     * Return the list of Subtitles implementations
     */
    public static function getImplementations()
    {
        return array(
            'srt'    => 'SubRipSubtitles',
            'webvtt' => 'WebVttSubtitles',
            'ttaf1'  => 'Ttaf1Subtitles',
            'txt'    => 'TxtSubtitles',
        );
    }
}

?>