<?php

/**
 * So why is this called image? and not attachment
 *
 * The original database design for handling attachments was only done for images initially
 *
 * It's role expanded to attachments over time, but still kept the image name..
 *
 * Crazy but true..
 *
 */

/**
 * view permission should be required on the underlying object...
 * 
 * 
 * Use Cases:
 * 
 * Images/{ID}/fullname.xxxx
 * 
 * (valid thumbs 200, 400)...?
 * Images/Thumb/200/{ID}/fullname.xxxx
 * == force a download..
 * Images/Download/{ID}/fullname.xxxx
 * 
 */
require_once  'MTrackWeb.php';

class MTrackWeb_Image extends MTrackWeb
{
    // relies on parent getAuth.
    
    function get($s) // determin what to serve!!!!
    {
        $this->as_mimetype = '' ;
        
        //DB_DataObject::debugLevel(1);
        
        $bits= explode('/', $s);
        $id = 0;
        // without id as first part...
        if (!empty($bits[0]) && $bits[0] == 'Thumb') {
            $this->thumb = true;
            $this->as_mimetype = 'image/jpeg';
            $this->size = empty($bits[1]) ? '0x0' : $bits[1];
            $id = empty($bits[2]) ? 0 :   $bits[2];
            
        } else if (!empty($bits[0]) && $bits[0] == 'Download') {
            $this->method = 'attachment';
            $id = empty($bits[1]) ? 0 :   $bits[1];
            
        } else  if (!empty($bits[1]) && $bits[1] == 'Thumb') { // with id as first part.
            $this->thumb = true;
            $this->as_mimetype = 'image/jpeg';
            $this->size = empty($bits[2]) ? '0x0' : $bits[2];
            $id = empty($bits[3]) ? 0 :   $bits[3];
            
        } else {
            $id = empty($bits[0]) ? 0 :  $bits[0];
        }
        
        $id = (int) $id;
         
       
        $img = DB_DataObjecT::factory('Images');
        if (!$id || !$img->get($id)) {
             
            header('Location: ' . $this->rootURL . '/Pman/templates/images/file-broken.png?reason=' .
                urlencode("image with id does not exist, or is invalid"));
            exit;
        }
        
        
        
        
        //----------- Authentication...
        
        
        
        $obj = $img->object();
        if ($obj->tableName() == 'Projects') {
            if ($this->currentProject() != $obj->id) {
                header('Location: ' . $this->rootURL . '/Pman/templates/images/file-broken.png?reason=' .
                    urlencode("image is not the same project (1)"));
                exit;
            }
            
        } else {
            if (empty($obj->project_id) || $obj->project_id != $this->currentProject()) {
                header('Location: ' . $this->rootURL . '/Pman/templates/images/file-broken.png?reason=' .
                    urlencode("image is not the same project (2)"));
                exit;
            }
        }
        
        // -- spamming us with resize..
         
        $this->serve($img);
        exit;
    }
    var $thumb = false;
    var $asmimetype = false;
    var $method = 'inline';
    function serve($img)
    {
        require_once 'File/Convert.php';
        if (!file_exists($img->getStoreName())) {
            //print_r($img);exit;
            header('Location: ' . $this->rootURL . '/Pman/templates/images/file-broken.png?reason=' .
                urlencode("Original file was missing : " . $img->getStoreName()));
    
        }
        
        $x = new File_Convert($img->getStoreName(), $img->mimetype);
        if (empty($this->as_mimetype)) {
            $this->as_mimetype  = $img->mimetype;
        }
        if (!$this->thumb) {
            $x->convert( $this->as_mimetype);
            $x->serve($this->method);
            exit;
        }
        
        $this->validateSize();
        $x->convert( $this->as_mimetype, $this->size);
        $x->serve();
        exit;
        
    }
    function validateSize()
    {
        if (!in_array($this->size, array(
               
                '100',
                
                '150', 
                /*'100x100', 
                '150', 
                '150x150', 
                '200', 
                '200x0',
                '200x200',  
                '400x0'
                */
            ))) {
            header('Location: ' . $this->rootURL . '/Pman/templates/images/file-broken.png?reason=' .
                    urlencode("invalid size"));
                exit;
        }
    }
}