<?php
/**
 * Xinha Dialog Module
 *
 * $Id$
 *
 * @author gERD Schaufelberger <gerd@php-tools.net>
 * @license PHP License
 * @package WB
 * @subpackage base
 */

WBClass::load('WBXinha_Dialog');

/**
 * Xinha Dialog Module
 *
 *
 *
 * @version 0.4.0
 * @package WB
 * @subpackage base
 */
class WBXinha_Dialog_Vfsfile extends WBXinha_Dialog
{
    /**
     * file
     * @var WBVFS_File
     */
    protected $file;

    /**
     * explorer
     * @var WBVFS_Explorer
     */
    protected $expl;

    /**
     * current working directory
     * @var array
     */
    protected $cwd  =   array(
                    'position'  =>  'block',
                    'width'     =>  '100',
                    'height'    =>  '75'
                    );

    /**
     * Run dialog
     *
     * @param bool $submit
     * @return bool whehther dialog was successful and may be closed
     */
    public function run($submit = true)
    {
        if (!$this->requireUser()) {
            return false;
        }

        $this->startVFS();

        $dir    =   $this->req->get('dir', '0');
        if ($dir === '0' || empty($dir)) {
            $dir    =   0;
        }
        $query  =   $this->req->get('query', '');
        $this->tmpl->addGlobalVar('find_query', $query);

        $this->cwd['position']  =   $this->getAttribute('position', $this->cwd['position']);
        $this->cwd['width']     =   $this->getStyle('width', 'px', $this->cwd['width']);
        $this->cwd['height']    =   $this->getStyle('height', 'px', $this->cwd['height']);

        $selected   =   array();
        if (!empty($this->value)) {
            $selected[] =   $this->value;
        }
        if (!$submit) {
            if (!empty($this->value)) {
                $this->file =   $this->file->loadByObscureId($this->value);
                if ($this->file->isOK()) {
                    $dir    =   $this->file->getDirId();
                }
            }
            return $this->listFiles($dir, $selected);
        }
        switch (strtolower($this->req->get('action'))) {
            case 'select':
                return $this->selectFiles($dir);
                break;

            case 'find':
                $this->value    =   '';
                if (empty($query)) {
                    return $this->selectFiles($dir);
                }
                $this->file =   $this->file->loadByName($query);
                if (!$this->file->isOK()) {
                    return $this->selectFiles($dir);
                }
                $selected[] =   $this->file->getObscureId();
                $dir        =   $this->file->getDirId();
                break;

            default:
            case 'cd':
                break;
        }

        return $this->listFiles($dir, $selected);
    }

    /**
     * select files
     *
     * Collect selected files from request and insert in editor
     *
     * @param string $dir
     * @return bool always false
     */
    protected function selectFiles($dir)
    {
        $selected   =   $this->req->get('file');
        if (!is_array($selected) || count($selected) < 1) {
            $selected   =   array();
            if (!empty($this->value)) {
                $selected[] =   $this->value;
            }
            $this->listFiles($dir, $selected);
            return false;
        }

        $this->loadTemplates('insert');
        $files  =   $this->file->listObscureId($selected);
        if (empty($files)) {
            $this->listFiles($dir, array());
            return false;
        }

        $this->cwd['position']  =   $this->req->get('position', $this->cwd['position']);
        $this->cwd['width']     =   $this->req->get('width', $this->cwd['width']);
        $this->cwd['height']    =   $this->req->get('height', $this->cwd['height']);
        $this->tmpl->addGLobalVars($this->cwd, 'cwd_');

        $this->tmpl->addRows('file_list_entry', $files);

        $this->insert   =   $this->tmpl->getParsedTemplate('snippet');
        return true;
    }

    /**
     * list files
     *
     *
     * @param string $dir
     * @param array $selected
     * @return bool always false
     */
    protected function listFiles($dir, $selected = array())
    {
        WBClass::load('WBException_Datasource');
        try{
            $this->cwd  =   array_merge($this->cwd, $this->expl->getDir($dir));
        } catch (WBException_Datasource $e) {
            if ($e->getCode() != 'WBDatasource_Tree:1') {
                throw $e;
            }
            $dir    =   0;
        }

        $dirs   =   $this->expl->lsDir($dir);
        $files  =   $this->file->listDir($dir);

        // preselect files
        foreach ($files as &$f) {
            if (in_array($f['obscureid'], $selected)) {
                $f['selected']  =   'yes';
            }
        }

        // current working directory
        $this->cwd['parent']      =   $this->expl->getParentDirId($dir);
        $this->cwd['path']        =   $this->expl->getPath($dir, true);
        $this->cwd['file_count']  =   count($files);
        $this->cwd['dir_count']   =   count($dirs);

        $this->loadTemplates('list');
        $this->tmpl->addGLobalVars($this->cwd, 'cwd_');
        $this->tmpl->addRows('file_list_entry', $files);
        $this->tmpl->addRows('dir_list_entry', $dirs);

        return false;
    }

    /**
     * start virtual file system
     *
     * Initialize explorer and file object
     */
    protected function startVFS()
    {
        $sess =   WBClass::create('patSession');

        $param  =   array(
                        'user'  =>  $this->user->getId()
                        );
        if ($sess->has('vfsfile_user')) {
            $param['user'] =   $sess->get('vfsfile_user');
        }

        $this->expl =   WBClass::create('WBVFS_Explorer', $param);
        $this->file =   WBClass::create('WBVFS_File', $param);

        // load default values from config
        $config =   WBClass::create('WBConfig');
        if (!$config->load('wxml/converter/wb/vfsfile', true)) {
            return;
        }
        
        $this->cwd['width']     =   $config->get('defaultwidth', $this->cwd['width']);
        $this->cwd['height']    =   $config->get('defaultheight', $this->cwd['height']);
    }
}