<?php
// $Id$

/**
 * @file
 * ImageCache Auto.
 *
 * Create ImageCache presets on the fly.
 */

/**
 * Implements hook_menu();
 */
function imagecache_auto_menu() {
  $items = array();

  $items['admin/settings/imagecache/auto'] = array(
    'title'            => 'ImageCache Auto Configuration',
    'description'      => 'Adjust ImageCache Auto settings.',
    'page callback'    => 'drupal_get_form',
    'page arguments'   => array('imagecache_auto_admin_settings'),
    'access arguments' => array('administer site configuration'),
    'type'             => MENU_LOCAL_TASK,
    'file'             => 'imagecache_auto.admin.inc',
  );

  $items[file_directory_path() .'/imagecache_auto'] = array(
    'page callback'   => 'imagecache_auto',
    'access callback' => TRUE,
    'type' => MENU_CALLBACK
  );

  return $items;
}

/**
 * Automatically create ImageCache presets.
 *
 * @todo
 *   Specify maximum and minimum dimensions.
 */
function imagecache_auto() {
  include_once('imagecache_auto.inc');

  $args    = func_get_args();
  $options = array(
    'width'  => (int) check_plain(array_shift($args)),
    'height' => (int) check_plain(array_shift($args)),
    'path'   => implode('/', $args),
  );

  // Make sure that the preset exists.
  imagecache_auto_create_preset($options);

  // Redirect to the image cache image version.
  $path = file_directory_path() .'/imagecache/'. $options['width'] .'x'. $options['height'] .'/'. $options['path'];
  drupal_goto($path);
}