<?php
// $Id$

/**
 * @file
 * Enable image support for video module.
 *
 * @author Fabio Varesano <fvaresano at yahoo dot it>
 */


/**
 * Implementation of hook_help().
 */
function video_image_help($section) {
  switch ($section) {
    case 'admin/modules#description':
      return t('Enable thumbnails support for video module.');
  }
}


/**
 * Implementation of hook_form_alter()
 */
function video_image_form_alter($form_id, &$form) {

  if($form_id == 'video_node_form' && isset($form['video'])) {

    $form['image'] = array('#type' => 'fieldset', '#title' => t('Image thumbnails'), '#collapsible' => TRUE, '#collapsed' => TRUE, '#weight' => -17, '#description' => t('Use this form to upload an image.'));


      if (function_exists('_image_check_settings')) {
        _image_check_settings();
        $node = $form['#node'];
        $form['#attributes'] = array("enctype" => "multipart/form-data");

        if ($node->iid) {
          $image = node_load($node->iid);
          $form['image']['image_thumbnail'] = array('#type' => 'item', '#title' => t('Thumbnail'), '#value' => image_display($image, 'thumbnail'));
        }
        $value = ($node->new_image) ? '#value' : '#default_value';
        $form['image']['iid'] = array('#type' => 'hidden' , $value => $node->iid);
        $form['image']['image'] = array('#type' => 'file', '#title' => t('Image'));
        $form['image']['image_title'] = array('#type' => 'textfield', '#title' => t('Image title'), '#default_value' => '');
      }
  }

}


/**
 * Implementation of hook_nodeapi()
 */
function video_image_nodeapi(&$node, $op, $teaser) {
  if($node->type == 'video') {
    switch ($op) {
      case 'load': 
        $output['iid'] = $node->serial_data['iid'];
        return $output;
      case 'submit':
        $node->serial_data['iid'] = $node->iid;
      break;
      case 'prepare':
        // check that image.module is actived
        if ( !module_exist("image")) {
          db_query("UPDATE {system} SET status = 0 WHERE name ='video_image' AND type = 'module' LIMIT 1");
          drupal_set_message(t('video_image module requires the %module module.<br />To prevent system errors video_image module has been disabled.<br />Please install the image module and then reactivate the video_image module.', array('%module' => l('image', 'http://drupal.org/project/image'))), 'error');
          break;
        }
        $image->title = $_POST['edit']['image_title'];
        $image->uid = $node->uid;
        $image->name = $node->name;
        $image->created = $node->created;
        $image->type = 'image';
        image_prepare($image, 'image');
        if ($image->images) {
          node_validate($image);
          if (!form_get_errors()) {
            $image = node_submit($image);
            node_save($image);
            $node->iid = $image->nid;
            $node->new_image = TRUE;
          }
        }
        elseif ($_POST['edit']['iid']) {
          $node->iid = $_POST['edit']['iid'];
        }
      break;

      case 'view':
        if($teaser) {
          if ($node->serial_data['image_teaser'] || $node->serial_data['iid']) { //If we are dealing with a teaser.
            $node->teaser = theme('video_image_teaser', $node);
          }
        }
        else {
          if ($node->serial_data['image_view'] || $node->serial_data['iid']) {
            $node->body = theme('video_image_body', $node) . $node->body;
          }
        }
        break;
    }
  }
}


/**
 * Render the output for the node teaser.
 *
 * @param $node
 *   object with node information
 *
 * @return
 *   string of content to display
 */
function theme_video_image_teaser($node) {
  if($node->serial_data['iid']) {
    $image = node_load($node->serial_data['iid']);
    $image = image_display($image, 'thumbnail', array('class' => 'video_image_teaser'));
  }
  else { // only for backward compatibility
    $image = theme('image', $node->serial_data['image_teaser'], $node->title, $node->title, array('class' => 'video_image_teaser'), FALSE);
  }
  $output .= l($image, "node/$node->nid", array(), NULL, NULL, FALSE, TRUE); //Create a link with an image in it.
  $output .= $node->teaser . '<br class="video_image_clear" />';
  return $output;
}


/**
 * Generates the image HTML displayed in the Node body.
 *
 * @param $node
 *   object with node information
 *
 * @return
 *   string of content to display
 */
function theme_video_image_body($node) {
  if($node->serial_data['iid']) {
    $image = node_load($node->serial_data['iid']);
    $image = image_display($image, 'thumbnail');
  }
  else { // only for backward compatibility
    $image = theme('image', $node->serial_data['image_view'], $node->title, $node->title, array('class' => 'video_image_view'), FALSE); //Create image HTML
  }
  $output = l($image, "node/$node->nid/play", array('title' => t('play') . ' ' . $node->title), NULL, NULL, FALSE, TRUE); //Create link HTML with image in it.

  return $output;
}

?>