<?php
/**
 * @file
 * This is the file description for Materiobasemod module.
 *
 * In this more verbose, multi-line description, you can specify what this
 * file does exactly. Make sure to wrap your documentation in column 78 so
 * that the file can be displayed nicely in default-sized consoles.
 */
// define(MATERIO_SEARCH_API_RESULTS_PATH, 'explore');

/**
 * Implements hook_permission().
 */
function materio_search_api_permission() {
  return array(
    'use materio search api' =>  array(
      'title' => t('Use materio search api'),
      'description' => t('Use materio search api.'),
    ),
    'use materio search api autocomplete' =>  array(
      'title' => t('Use materio search api autocomplete'),
      'description' => t('Use materio search api autocomplete.'),
    ),
    'use materio search api viewmode selection' =>  array(
      'title' => t('Use materio search api viewmode selection'),
      'description' => t('Use materio search api viewmode selection.'),
    ),
    'administer materio_search_api' => array(
      'title' => t('administer Materio search api'),
      'description' => t('Administer materio search api.'),
    ),
    'use materio search api filters' => array(
      'title' => t('use Materio search api filters'),
      'description' => t('Use materio search api filters.'),
    ),
  );
}

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

  $base = array(
    'type' => MENU_CALLBACK,
    'file' => 'materio_search_api.pages.inc',
  );

  $items['admin/config/search/search_api/materiosearchapi'] = array(
    'title' => 'Materio Search Api',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('materio_search_api_settings'),
    'access arguments' => array('administer materio_search_api'),
    'file' => 'materio_search_api.admin.inc',
    'type' => MENU_LOCAL_TASK,
  );

  $items['materiosearchapi/autocomplete/dbselect'] = $base+array(
    'access arguments' => array('use materio search api autocomplete'),
    'page callback' => 'materio_search_api_autocomplete_dbselect',
  );

  $items['materiosearchapi/autocomplete/searchapi'] = $base+array(
    'access arguments' => array('use materio search api autocomplete'),
    'page callback' => 'materio_search_api_autocomplete_searchapi',
  );

  $items['explore'] = $base+array(
    'access arguments' => array('use materio search api'),
    'page callback' => 'materio_search_api_results_search',
    'title' => t('Explore'),
    //'page argument' => array(1,2,3),
  );

  $items['actuality'] = $base+array(
    // 'access arguments' => array(),
    'page callback' => 'materio_search_api_actuality',
    // 'page argument' => array(),
    'access callback' => TRUE,
  );

  $items['materiosearchapi/viewmode/change'] = $base+array(
    'access arguments' => array('use materio search api'),
    'page callback' => 'materio_search_api_viewmode_change',
    'page argument' => array(3),
  );

  return $items;
}

/**
 * hook_entity_property_info_alter().
 */
function materio_search_api_entity_property_info_alter(&$info){
  // dsm($info, 'hook_entity_property_info_alter | info');
  $properties = &$info['node']['properties'];
  for ($i=1; $i <= 5 ; $i++) { 
    $properties['materio_search_api_taxonomy_term_'.$i] = array(
      'type'=>'taxonomy_term',
      'label'=> t('Main taxonomy term '.$i),
      'query callback'=>'entity_metadata_table_query',
      'getter callback'=>'materio_search_api_get_main_taxonomy_term_'.$i,
    );
  }
  
  return $properties;
}

function materio_search_api_get_main_taxonomy_term_1($item){
  // dsm($item, 'item');
  return materio_search_api_get_onto_term($item, 0);
}
function materio_search_api_get_main_taxonomy_term_2($item){
  // dsm($item, 'item');
  return materio_search_api_get_onto_term($item, 1);
}
function materio_search_api_get_main_taxonomy_term_3($item){
  // dsm($item, 'item');
  return materio_search_api_get_onto_term($item, 2);
}
function materio_search_api_get_main_taxonomy_term_4($item){
  // dsm($item, 'item');
  return materio_search_api_get_onto_term($item, 3);
}
function materio_search_api_get_main_taxonomy_term_5($item){
  // dsm($item, 'item');
  return materio_search_api_get_onto_term($item, 4);
}

function materio_search_api_get_onto_term($item, $delta){
  // dsm($item, 'item');
  // dsm($delta, 'delta');

  if(isset($item->field_onthologie['und'][$delta]))
    return taxonomy_term_load($item->field_onthologie['und'][$delta]['tid']);

  return null;
}

/**
 * Implements hook_block_info().
 */
function materio_search_api_block_info() {
  // This example comes from node.module.
  $blocks['materio_search_api_search'] = array(
    'info' => t('Materio search api search'),
    'cache' => DRUPAL_NO_CACHE
  );

  $blocks['materio_search_api_viewmode'] = array(
    'info' => t('Materio search api view mode selection'),
    'cache' => DRUPAL_NO_CACHE
  );
  
  // $blocks['materio_search_api_filters'] = array(
  //   'info' => t('Materio search api filters'),
  //   'cache' => DRUPAL_NO_CACHE
  // );

  return $blocks;
}

/**
 * Implements hook_block_view().
 */
function materio_search_api_block_view($delta = '') {
  // This example comes from node.module. Note that you can also return a
  // renderable array rather than rendered HTML for 'content'.
  $block = array();

  switch ($delta) {
    case 'materio_search_api_search':
      if (user_access('use materio search api')) {
        $block['subject'] = t('Search');
        $block['content'] = theme('materio_search_api_search_block', array());
      }
      break;
    case 'materio_search_api_viewmode':
      if (user_access('use materio search api viewmode selection')) {
        $block['subject'] = t('View mode');
        $block['content'] = theme('materio_search_api_select_viewmode_block', array());
      }
      break;
    // case 'materio_search_api_filters':
    //   if (user_access('use materio search api filters')) {
    //     $block['subject'] = t('Filters');
    //     $block['content'] = theme('materio_search_api_filters_block', array());
    //   }
    //   break;
  }
  return $block;
}

/**
 * Implements hook_entity_info_alter().
 */
function materio_search_api_entity_info_alter(&$entity_info) {
  $entity_info['node']['view modes']['cardsmall'] = array(
    'label' => t('Small cards'),
    'custom settings' => TRUE,
  );
  
  $entity_info['node']['view modes']['cardmedium'] = array(
    'label' => t('Medium cards'),
    'custom settings' => TRUE,
  );
  
  $entity_info['node']['view modes']['cardbig'] = array(
    'label' => t('Big cards'),
    'custom settings' => TRUE,
  );

  $entity_info['node']['view modes']['cardfull'] = array(
    'label' => t('Full cards'),
    'custom settings' => TRUE,
  );
}

/**
 * Implements hook_node_view().
 */
function materio_search_api_node_view($node, $view_mode, $langcode) {
  if (in_array($view_mode, array('cardsmall','cardmedium', 'cardbig', 'cardfull'))) {
    print_node_view($node, 'full');
    print_pdf_node_view($node, 'full');
    // dsm($node, 'node');
  }
}


/**
 * materiobase_search_form()
 */
function materio_search_api_search_form($form, &$form_state){
  //  dsm($form_state, 'form_state');
  // dsm($form, 'form');
  global $user;
  $form = array();


  $args = arg();
  $path = array_shift($args);
  $keys = implode('/', $args); 

  $form['searchfield'] = array(
    '#type' => 'textfield',
    '#default_value' => $path == 'explore' ? $keys : "", // TODO:  set the search page path global or a variable in settings  
    // '#value' => $keys,
    '#autocomplete_path' => 'materiosearchapi/autocomplete/searchapi',
    //'#autocomplete_path' => 'materiosearchapi/autocomplete/dbselect',
    '#size' => 30,
    '#maxlength' => 1024,
  );

  if(user_access('use materio search api filters')){
    
    $index = search_api_index_load(variable_get('mainsearchindex', -1));
    $indexed_bundles = $index->options['data_alter_callbacks']['search_api_alter_bundle_filter']['settings']['bundles'];
   
    foreach ($indexed_bundles as $bundle) {
      $bundles_options[$bundle] = $bundle;
      $default_bundles[] = $bundle;
    }
    
    $user_bundles_filter = isset($user->data['materiosearchapi_bundlesfilter']) ? $user->data['materiosearchapi_bundlesfilter'] : $default_bundles;

    $form['bundles_filter'] = array(
      '#type'=>'checkboxes',
      '#options' => $bundles_options,
      '#default_value' => $user_bundles_filter,
      // '#attributes' => array('class'=>array('btn-group')),
    );
  }
  
  $form['create'] = array(
    '#type' => 'image_button',
    '#src' => drupal_get_path('module', 'materio_search_api') . '/images/search.png',
    '#value' => t('Search'),
  );
  return $form;
}

function materio_search_api_search_form_validate($form, &$form_state){
  // dsm($form, '$form');
  // dsm($form_state, '$form_state');
  // dsm(strlen($form_state['values']['searchfield']));
  if (strlen(trim($form_state['values']['searchfield'])) <= 1) {
    form_set_error('searchfield', 'Please enter at least 2 characters keyword.');
  }
}

function materio_search_api_search_form_submit($form, &$form_state){
  // dsm($form_state, 'form_state');
  global $user;
  if(user_access('use materio search api filters')){
    foreach($form_state['values']['bundles_filter'] as $bundle => $value)
      if($value)
        $bundles[] = $bundle;

    # if no filter checked we checked them all by default
    if(!isset($bundles))
      foreach($form_state['values']['bundles_filter'] as $bundle => $value)
          $bundles[] = $bundle;
  }else{
    # if user have no access to filters
    $index = search_api_index_load(variable_get('mainsearchindex', -1));
    $indexed_bundles = $index->options['data_alter_callbacks']['search_api_alter_bundle_filter']['settings']['bundles'];
   
    foreach ($indexed_bundles as $bundle) {
      $bundles[] = $bundle;
    }
  }

  user_save($user, array("data"=>array('materiosearchapi_bundlesfilter' => $bundles)));

  $form_state['redirect'] = 'explore/'.$form_state['values']['searchfield'];
}


/**
 * viewmode
 */

function _materio_search_api_change_viewmode($vm){
  // dsm($vm, '_materio_search_api_change_viewmode');

  global $user;
  // dsm($user, 'user');

  $entity_infos = entity_get_info();
  // dsm($entity_infos, 'entity_infos');

  if (in_array($vm, variable_get('availableviewmodes', array()))) {
    user_save($user, array("data"=>array('materiosearchapi_viewmode' => $vm)));
    $rep = array('statut'=>'saved');
  }else{
    $rep = array('statut'=>'viewmode not allowed');
  }

  return $rep;
}

/**
* - - - - - - - - - - - -  THEME  - - - - - - - - - - - - 
*/

/**
 * Implements hook_theme().
 */
function materio_search_api_theme($existing, $type, $theme, $path) {
  return array(
    'materio_search_api_search_block' => array(
      'arguments' => array(),
      'template' => 'materio-search-api-search-block',
      'path' => drupal_get_path('module', 'materio_search_api').'/templates',
    ),
    'materio_search_api_select_viewmode_block' => array(
      'arguments' => array(),
      'template' => 'materio-search-api-select-viewmode-block',
      'path' => drupal_get_path('module', 'materio_search_api').'/templates',
    ),
    // 'materio_search_api_filters_block' => array(
    //   'arguments' => array(),
    //   'template' => 'materio-search-api-filters-block',
    //   'path' => drupal_get_path('module', 'materio_search_api').'/templates',
    // ),
    'materio_search_api_results' => array(
      'arguments' => array(), 
      'template' => 'materio-search-api-results',
      'path' => drupal_get_path('module', 'materio_search_api').'/templates',
      'variables' => array(
        'index' => NULL,
        'results' => array('result count' => 0),
        'items' => array(),
        'view_mode' => 'teaser',
        'keys' => '',
        // 'page_machine_name' => NULL,
        'spellcheck' => NULL,
        'pager' => NULL,
      ),
    ),
    // 'materio_search_api_performance' => array(
    //   'render element' => 'element',
    // ),
    'materio_search_api_actuality' => array(
      'template' => 'materio-search-api-actuality',
      'path' => drupal_get_path('module', 'materio_search_api').'/templates',
      'arguments' => array(
        'items' => array(),
        'view_mode' => "teaser",
        'pager' => NULL,
        'count' => 0,
      )
    )
  );
}


/**
 * Implements theme for rendering search-performance
 */
// function theme_materio_search_api_performance($variables) {
//   $element = array_shift($variables);

//   return $element['#markup'];
// }


/**
 * template_preprocess_materiobase_search_block();
 */
function template_preprocess_materio_search_api_search_block(&$vars){
  // dsm($vars, '$vars');
  $vars['searchform'] = drupal_get_form("materio_search_api_search_form");
}

function template_preprocess_materio_search_api_select_viewmode_block(&$vars){
  global $user;

  $active = isset($user->data['materiosearchapi_viewmode']) ? $user->data['materiosearchapi_viewmode'] : variable_get('defaultviewmode', 'full');

  $availableviewmodes = variable_get('availableviewmodes', -1);
  // dsm($availableviewmodes);

  $entity_infos = entity_get_info();
  // dsm($entity_infos, 'entity_infos');
  
  $content = '<div class="btn-group btn-group-vertical">';
  foreach ($entity_infos['node']['view modes'] as $viewmode => $value) {
    if(in_array($viewmode, $availableviewmodes)){
      $link = l(
        '<i class="icon-materio-viewmode-'.$viewmode.($active == $viewmode ? " active" : '').'"></i><span class="inner">'.$value['label'].'</span>',
        'materiosearchapi/viewmode/change/'.$viewmode,
        array(
          'query' => drupal_get_destination(),
          'html' => true,
          'attributes' => array(
            'class' => array(
              'viewmode-link',
              'viewmode-'.$viewmode,
              $active == $viewmode ? " active" : ''
            ),
            'rel' => $viewmode
          )
        )
      );

      $content .= $link;
    }
  }
  $content .= '</div>';
  $vars['content'] = $content;
}

// function template_preprocess_materio_search_api_filters_block(&$vars){

//   $index_machine_name = variable_get('mainsearchindex', -1);
//   $index = search_api_index_load($index_machine_name);
//   dsm($index, 'index');

//   // $entity_infos = entity_get_info($index->item_type);
//   // dsm($entity_infos, 'entity_infos');
//   $indexed_bundles = $index->options['data_alter_callbacks']['search_api_alter_bundle_filter']['settings']['bundles'];
  
//   dsm($indexed_bundles, 'indexed_bundles');
  

//   $vars['content'] = drupal_get_form('materio_search_api_filters_form', $indexed_bundles);
// }

// function materio_search_api_filters_form($form, $form_state, $bundles){
//   $form = array();
//   dsm($bundles, 'bundles');
//   foreach ($bundles as $bundle) {
//     $form[$bundle . '_filter'] = array(
//       '#type'=>'checkbox',
//       '#default_value' => -1,
//       '#title' => $bundle,
//     );
//   }

//   return $form;
// }

/**
 * Function for preprocessing the variables for the search_api_page_results
 * template.
 *
 * @param array $variables
 *   An associative array containing:
 *   - $index: The index this search was executed on.
 *   - $results: An array of search results, as returned by
 *     SearchApiQueryInterface::execute().
 *   - $keys: The keywords of the executed search.
 *
 * @see materio-search-api-results.tpl.php
 */
function template_preprocess_materio_search_api_results(array &$variables) {
  // dsm($variables, '$variables');
  $results = $variables['results'];
  $keys = $variables['keys'];

  $variables['items'] = $variables['index']->loadItems(array_keys($variables['results']['results']));
  $variables['result_count'] = $results['result count'];
  $variables['sec'] = round($results['performance']['complete'], 3);
  $variables['search_performance'] = format_plural(
    $results['result count'],
    'The search found 1 result.', // in @sec seconds
    'The search found @count results.', // in @sec seconds
    array('@sec' => $variables['sec'])
  );

  //dsm($variables, 'variables');
}


function template_preprocess_materio_search_api_actuality(&$vars){
  // dsm($vars, 'template_preprocess_materio_search_api_actuality | vars');

  // $vars['actualities_infos'] = t('Actualities by materiO\'');
  $vars['actualities_infos'] = t('');
}

/**
* - - - - - - - - - - - -  SEARCH API PAGE  - - - - - - - - - - - - 
*/

/**
 * Implements hook_block_view_alter().
 */
function materio_search_api_block_view_alter(&$data, $block) {
  // this alter prepopulate the search form provide by search_api_page
  if ($block->module == 'search_api_page') {
    $page = search_api_page_load($block->delta);
    $item = menu_get_item();
    
    if (isset($page->path) && $page->path == $item['path']) {
      $keys = arg(count(arg(NULL, $page->path)));
      if ($keys) {
        $data['content']['keys_' . $page->id]['#default_value'] = $keys;
        $data['content']['keys_' . $page->id]['#value'] = $keys;
      }
    }
  }
}