<?php
/**
 * Command Line Interface class: Event Queue Processor
 *
 * $Id$
 *
 * @author gERD Schaufelberger <gerd@php-tools.net>
 * @license PHP License
 * @package WB
 * @subpackage base
 */

WBClass::load('WBCli');

/**
 * Command Line Interface class: Event Queue Processor
 *
 * Run event queue
 *
 * @version 0.1.0
 * @package WB
 * @subpackage base
 */
class WBCli_Translator extends WBCli
{
    /**
     * locale configuration
     * @var WBConfig
     */
    private $locale;

    /**
     * text importer
     * @var array patI18n_Importer
     */
    private $imp =  array();

    /**
     * config Loader
     * @var WBCoonfig_Loader
     */
    private $configLoader;

    /**
     * markup scanner
     * @var WBMarkup_Scanner
     */
    private $scanner;

    /**
     * markup handler
     * @var WBMarkup_Handler_I18nExtractor
     */
    private $handler;

    /**
     * list of errors
     * @var array
     */
    private $errors =   array();

    /**
     * 2nd constructor
     *
     * load config and setup importer
     */
    protected function init()
    {
        WBClass::load('patI18n');

        $this->locale   =   WBClass::create('WBConfig');
        $this->locale->load('locale');

        $trans  =   $this->locale->get('translators', array());

        if (empty($trans) || !isset($trans['modules'])) {
            $trans['modules']   =   array();
        }

        foreach ($trans['modules'] as $mod) {
            if (isset($mod['defaultdomain'])) {
                $mod['domain']  =   $mod['defaultdomain'];
            }
            $this->imp  =   patI18n::createImporter($mod['module'], $mod);
        }
    }

    /**
     * execute programme
     *
     * Use observer and execute event queue
     */
    protected function execute()
    {
        $this->commands =   array('extract');

        foreach ($this->commands as $c) {
            call_user_func(array($this, 'execute'. ucfirst($c)));
        }

        $this->pvl('done');
    }

    /**
     * extract all the meesages
     *
     *
     */
    private function executeExtract()
    {
        $this->extractPhp();
        $this->extractXmlConfig();
        $this->extractTemplate();
    }

    private function extractPhp()
    {
        $sys    =   WBParam::get('wb/dir/system');
        $this->pv('Extract messages from Wombat\'s PHP files  ... ');
        $cnt    =   $this->extractPhpDir($sys . '/include/WB');
        $this->pvl($cnt);

        if (!empty($this->errors)) {
            $this->pl('There where errors.');
            $this->pvl(implode("\n", $this->errors));
            $this->errors   =   array();
        }

        $base   =   WBParam::get('wb/dir/base');
        if ($base == $sys) {
            return;
        }
        $this->pv('Extract messages from custom PHP files ... ');
        $cnt    =   $this->extractPhpDir($base . '/include');
        $this->pvl($cnt);
        if (!empty($this->errors)) {
            $this->pl('There where errors.');
            $this->pvl(implode("\n", $this->errors));
            $this->errors   =   array();
        }
    }

    private function extractPhpDir($dir)
    {
        $cnt    =   0;
        $dh =   new DirectoryIterator($dir);
        foreach ($dh as $i) {
            $name   =   $i->getFilename();
            if ($i->isDot() || '.' == $name[0]) {
                continue;
            }

            if ($i->isDir()) {
                $cnt    +=  $this->extractPhpDir($i->getRealPath());
                continue;
            }

            $name   =   explode('.', $name);
            if ('php' != end($name)) {
                continue;
            }

            $this->extractPhpFile($i->getRealPath());
            ++$cnt;
        }
        return $cnt;
    }

    public function extractPhpFile($realpath)
    {
        $string =   file_get_contents($realpath);
        $tokens =   token_get_all($string);
        for ($i = 0; $i < count($tokens); ++$i) {
            $t  =   $tokens[$i];
            if (!is_array($t)) {
                continue;
            }

            if ($t[0] == T_DOUBLE_COLON) {
                $left   =   $tokens[($i - 1)];
                if ($left[0] != T_STRING || strtolower($left[1]) != 'pati18n' ) {
                    continue;
                }
                $right  =   $tokens[($i + 1)];
                if ($right[0] != T_STRING) {
                    continue;
                }
                ++$i;
                $domain = null;
                switch (strtolower($right[1])) {
                    case 'dgettext':
                        $d      =   $this->getNextString($i, $tokens);
                        $domain =   $d[1];
                        // fall through

                    case 'gettext':
                        $t  =   $this->getNextString($i, $tokens);
                        try {
                            $this->imp->addMsg($t[1], null, $domain);
                        } catch(Exception $e) {
                            $this->errors[] =   $e->getMessage();
                        }
                        break;

                    case 'dngettext':
                        $d  =   $this->getNextString($i, $tokens);
                        $domain =   $d[1];
                        // fall through

                    case 'ngettext':
                        $s  =   $this->getNextString($i, $tokens);
                        $p  =   $this->getNextString($i, $tokens);
                        try {
                            $id =   $this->imp->addMsg($t[1], null, $domain);
                            $this->imp->addMsg($p[1], $id, $domain);
                        } catch(Exception $e) {
                            $this->errors[] =   $e->getMessage();
                        }
                    break;

                    default:
                        continue 2;
                        break;
                }
            }

        }
    }

    private function getNextString(&$i, $tokens)
    {
        ++$i;
        while(true) {
            $t  =   $tokens[$i];

            // skip "("
            if (!is_array($t) && $t == '(') {
                ++$i;
                continue;
            }

            // skip blanks
            if (is_array($t) && $t[0] != T_WHITESPACE ) {
                break;
            }
            ++$i;
        }
        $t[1]   =   stripslashes(trim($t[1], '\'"'));
        return $t;
    }


    private function extractTemplate()
    {
        $this->scanner      =   WBClass::create('WBMarkup_Scanner');
        $this->handler      =   WBClass::create('WBMarkup_Handler_I18nExtractor_HtmlTemplate');
        $this->handler->setImporter($this->imp);
        $this->scanner->setHandler($this->handler);

        $dir    =   WBParam::get('wb/dir/base') . '/template';

        $this->pv('Extract messages from HTML template files ... ');
        $cnt    =   $this->extractTemplateFile($dir);
        $this->pvl($cnt);
    }

    private function extractTemplateFile($dir)
    {
        $cnt    =   0;

        $dh =   new DirectoryIterator($dir);
        foreach ($dh as $i) {
            $name   =   $i->getFilename();
            if ($i->isDot() || '.' == $name[0]) {
                continue;
            }

            $path   =   $i->getRealpath();

            // recursion
            if ($i->isDir()) {
                $cnt    +=  $this->extractTemplateFile($path);
                continue;
            }

            $name   =   explode('.', $name);
            if ('tmpl' != end($name)) {
                continue;
            }
            $this->scanner->scanFile($path);
            ++$cnt;
        }

        return $cnt;
    }

    /**
     * extract messages from XML config
     *
     */
    private function extractXmlConfig()
    {
        $this->scanner      =   WBClass::create('WBMarkup_Scanner');
        $this->handler      =   WBClass::create('WBMarkup_Handler_I18nExtractor_XmlConfig');
        $this->handler->setImporter($this->imp);
        $this->scanner->setHandler($this->handler);

        // file baseed config
        $this->pv('Extract messages from XML config stored files ... ');
        $this->configLoader =   WBClass::create('WBConfig_Loader_File');
        $cnt    =   $this->extractXmlConfigDir('');
        $this->pvl($cnt);

        // config in tables
        $this->pv('Extract messages from XML config stored in database ... ');
        $this->configLoader =   WBClass::create('WBConfig_Loader_ConfigTable');
        $cnt    =   $this->extractXmlConfigDir('');
        $this->pvl($cnt);
    }

    /**
     * extract messages from XML config
     *
     * Use config loader to list and fetch XML config (e.g. from file or database)
     * scan config and listrecursively.
     *
     *
     * @param string $dir
     * @return int
     */
    private function extractXmlConfigDir($dir)
    {
        $d  =   $dir;
        if (!empty($d)) {
            $d  .=  '/';
        }
        $data   =   '';
        $exp    =   null;
        if ($this->configLoader->load($dir, $data, $exp, true)) {
            $this->scanner->scan($data);
            $cnt    =   $this->handler->getParsedContent();
        }

        $list   =   $this->configLoader->ls($dir);
        $cnt    =   count($list);
        foreach ($list as $l) {
            $cnt    +=  $this->extractXmlConfigDir($d . $l);
        }

        return $cnt;
    }

    private function executeXgettext()
    {
        $this->pvl('Xgettext');
    }

    private function executeMsgfmt()
    {
        $this->pvl('Msgfmt');

        $sysDir =   WBParam::get('wb/dir/system');
        $this->pvl('sysdir ' . $sysDir);

        $file   =   WBClass::create('WBFile');
        /** @var $file WBFile */

        $available  =   $this->locale->get('locale/languages/available');

        foreach ($available as  $a) {

            // solve problem with 5 letter language codes
            $lang   =   substr($a, 0, 2);

            if ($lang == 'en') {
                continue;
            }

            $file->mkDir('var/lang/' . $lang . '/LC_MESSAGES');

            // wombat
            $cmd    =   sprintf('msgfmt -v -o %s/wombat.mo %s/resource/gettext/wombat/%s.po', $file->realpath(), $sysDir, $lang);
            exec($cmd, $out, $ret);
            if ($ret) {
                break;
            }

            // patForms
            $cmd    =   sprintf('msgfmt -v -o %s/patForms.mo %s/lib/patForms/data/gettext/patForms/%s.po', $file->realpath(), $sysDir, $lang);
            exec($cmd, $out, $ret);
            if ($ret) {
                break;
            }
        }
    }
}
?>