<?php

require_once 'Pman.php';

class Pman_Cms_PageThumb extends Pman
{
    function get($id = '',  $opts = array())
    {
        $cms_page = DB_DataObject::factory('cms_page');
        $cms_page->autoJoin();
        
        $file_broken = realpath('Pman/templates/images/file-broken.png');
        
        if(empty($id) || !$cms_page->get($id)){
            $this->serve($file_broken);
        }
        
        if ($cms_page->page_type_id_name == 'element') {
            $cms_page = $cms_page->parent();
        }
        
        if($cms_page->page_type_id_name != 'page'){
            $this->serve($file_broken);
        }
        
        $opts = HTML_FlexyFramework::get()->Pman_Cms;
        
        if (!isset($opts['basePHP'])) {
            $this->serve($file_broken);
        }
        
        $basePHP = $opts['basePHP'];
        
        $strip = 0;
        $pl = $cms_page->page_link;
        if (is_array($opts['basePHP'])) {
            foreach($opts['basePHP'] as $k=>$v) {
                if ($k == substr($pl,0, strlen($k))) {
                    $pl = substr($pl, strlen($k)+1);
                    $basePHP = $v;
                    $matched = true;
                    break;
                }
            }
            if (!$matched) {
                $this->serve($file_broken);
            }
        }
        
        switch($pl) {
            case 'Home':
            case 'Site':
                $pl = '';
                break;
            default:
                if($pl[0] != '/') {
                    $pl = '/' . $pl;
                }
                break;
        }
        
        $protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";
        
        $url = $protocol . $_SERVER['HTTP_HOST'] . $this->rootURL .'/'. $basePHP . $pl;
        
        $file = $cms_page->getStoreName();
        
        if(file_exists($file) && strtotime($cms_page->updated) < filemtime($file)){
            $this->serve($file);
        }
        
        require_once 'System.php';
        
        $conv = System::which('wkhtmltoimage');
        
        if (!$conv) {
            $this->jerr("missing wkhtmltoimage");
        }
        
        $xvfb = System::which('xvfb-run');
        
        if (!$xvfb) {
            $this->jerr("missing xvfb-run");
        }
        
        $cmd = $xvfb . ' --auto-servernum '  . $conv .
            ' --width 300 --height 300 --zoom 0.3 --disable-smart-width --enable-javascript --javascript-delay 1000 ' .
            escapeshellarg($url) . ' ' .escapeshellarg($file);
        
        exec($cmd);
        
        if(!file_exists($file)){
            $this->serve($file_broken);
        }
        
        $this->serve($file);
        
        exit;
        
    }
    
    function serve($file)
    {
        $this->sessionState(0);
        
        require_once 'File/Convert.php';
        
        $fc = new File_Convert($file, 'image/png');
        
        $fc->convert('image/png');
        
        $fc->serve('inline');
        
        exit;
        
    }
}