<?php
// $Id: cmis_query.module,v 1.3.2.1.2.12 2010-03-17 10:25:31 cbalan Exp $

/**
 * @file
 * Search functions
 */

/**
 * Implementation of hook_menu() for CMIS search module.
 */
function cmis_query_menu() {
  $items = array();
  $items['cmis/query'] = array(
    'type' => MENU_NORMAL_ITEM,
    'title' => t('CMIS Query'), 
    'page callback' => 'cmis_query_view',  
    'access arguments' => array('access cmis'),
  );

  return $items;
}

/**
 * Implementation of hook_theme()
 */
function cmis_query_theme() {
  return array(
    'cmis_query_results' => array(
      'arguments' => array('rows' => NULL),
    )
  );
}

/**
 * Implementation of hook_view()
 *  
 * @param $query
 * @param $format
 * @param $p
 */
function cmis_query_view($query = NULL, $format = 'html', $p = 1) {
  module_load_include('api.inc', 'cmis');
  $query = urldecode($query);

  if ($query) {
    try {
      $repository = cmisapi_getRepositoryInfo();
      $query_result = cmisapi_query($repository->repositoryId, $query);  
    }
    catch (CMISException $e) {
      cmis_error_handler('cmis_query', $e);
      $contents = t('Error');
    }
  }

  switch($format) {
    case 'json':
      $result = array();
      if ($query_result) {
        // strip links property
        foreach($query_result->objectList as $cmis_object) {
          if (isset($cmis_object->links)) {
            unset($cmis_object->links);
          }
          $result[] = $cmis_object;
        }
      }
      $contents = NULL;
      drupal_json($result);
      break;
     
    default:
      $contents = drupal_get_form('cmis_query_form', NULL);
      if ($query_result) {
        $contents .= theme('cmis_query_results', $query_result->objectList);
      }
  }
  
  return $contents;
}

/**
 * Render form for searching CMIS respository.
 */
function cmis_query_form(&$form_state) {
  $cmis_query = array(
    '#type' => 'fieldset',
    '#title' => t('Search the repository using CMIS SQL 1.0 queries.'), 
    '#collapsible' => TRUE, 
    '#collapsed' => FALSE,
  );

  $cmis_query['cmis_query'] = array(
    '#type' => 'textarea',
    '#title' => t('Query'), 
    '#size' => 50,
    '#default_value' => urldecode(arg(2)),
  );

  $cmis_query['cmis_query_submit'] = array(
    '#type' => 'submit',
    '#value' => t('Run'), 
  );

  $form['statement'] = $cmis_query;

  return $form;
}

/**
 * Form submit for cmis_query_form - redirects to put query in url so we can use it on the results page
 * 
 */
function cmis_query_form_submit($form, &$form_state) {
  if ($form_state['values']['cmis_query']) {
    $form_state['redirect'] = 'cmis/query/'. urlencode(trim($form_state['values']['cmis_query']));
  }
  else { 
    $form_state['redirect'] = 'cmis/query';   
    form_set_error('cmis_query_form', 'Please enter a query');
  }
}

/**
 * Theme function for CMIS query search results
 * 
 */
function theme_cmis_query_results($rows) {
  return theme('cmis_browser_browse_children', array('children' => $rows));
}