<?php

class ezcappDocumentConverter
{
    public static $formats = array(
        'wiki-confluence',
        'wiki-creole',
        'wiki-dokuwiki',
        'wiki-mediawiki',
        'text-rst',
        'xml-docbook',
        'xml-xhtml',
        'xml-ezxml',
    );

    protected $inFormat;

    protected $outFormat;

    public function __construct( $inFormat, $outFormat )
    {
        $this->inFormat  = explode( '-', $inFormat );
        $this->outFormat = explode( '-', $outFormat );
    }

    public function convert( $inFile, $outFile )
    {
        $inputDocument = $this->getDocument( $this->inFormat );

        $inputDocument->options->errorReporting = E_PARSE | E_ERROR;
        $inputDocument->loadFile( $inFile );

        $docBook = $inputDocument->getAsDocbook();

        $outputDocument = $this->getDocument( $this->outFormat );

        $outputDocument->createFromDocbook( $docBook );
        
        file_put_contents( $outFile, $outputDocument->save() );
    }

    protected function getDocument( array $format )
    {
        switch ( $format[0] )
        {
            case 'wiki':
                return $this->getWikiDocument( $format[1] );
            case 'text':
                return $this->getTextDocument( $format[1] );
            case 'xml':
                return $this->getXmlDocument( $format[1] );
        }
    }

    protected function getWikiDocument( $format )
    {
        $tokenizer = null;
        switch ( $format )
        {
            case 'confluence':
                $tokenizer = ezcDocumentWikiConfluenceTokenizer();
                break;
            case 'dokuwiki':
                $tokenizer = ezcDocumentWikiDokuwikiTokenizer();
                break;
            case 'mediawiki':
                $tokenizer = ezcDocumentWikiMediawikiTokenizer();
                break;
            case 'creole':
                $tokenizer = ezcDocumentWikiCreoleTokenizer();
                break;
        }

        $doc = new ezcDocumentWiki(
            new ezcDocumentWikiOptions(
                array( 'tokenizer' => $tokenizer )
            )
        );
        
        return $doc;
    }

    protected function getXmlDocument( $format )
    {
        switch ( $format )
        {
            case 'xhtml':
                return new ezcDocumentXhtml();
            case 'ezxml':
                return new ezcDocumentEzXml();
            case 'docbook':
                return new ezcDocumentDocbook();
        }
    }

    protected function getTextDocument( $format )
    {
        $doc = new ezcDocumentRst();
        $doc->registerDirective( 'hint', 'ezcDocumentRstNoteDirective' );
        return $doc;
    }
}

?>