<?php

/**
 * @file
 * Implementation of Roblib search for searching several targets.
 */


/**
 * Implements hook_boot().
 * @global type $conf
 */
function roblib_search_boot() {
/* below is an example from islandora_solr module for internationalization
 *  global $conf;

  // Allow i18n, by using multilingual variables.
  if (module_exists('i18n')) {
    $vars = array(
      'islandora_solr_facets',
      'islandora_solr_result_fields',
      'islandora_solr_searchterms'
    );

    if (isset($conf['i18n_variables']) && is_array($conf['i18n_variables'])) {
      $conf['i18n_variables'] = array_merge($vars, $conf['i18n_variables']);
    }
    else {
      $conf['i18n_variables'] = $vars;
    }
  }*/
}

/**
 * Implements hook_menu().
 */
function roblib_search_menu() {

  $items['admin/roblib_search'] = array(
    'title' => 'Roblib search',
    'description' => 'Configure global Roblib search settings.',
    'access arguments' => array('administer site configuration'),
    'type' => MENU_NORMAL_ITEM,
  );
  
  $items['admin/roblib_search/configure'] = array(
    'title' => 'Global Configuration',
    'description' => 'Configure global Roblib search settings.',
    'access arguments' => array('administer site configuration'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('roblib_search_config_form'),
    'type' => MENU_NORMAL_ITEM,
  );
  
  
  return $items;
}


function roblib_search_config_form($form, &$form_state) {
 
  //variable_get('roblib_search_panel_page','/roblib/panel');
  $form['roblib_search_panel_page'] = array(
    '#type' => 'textfield',
    '#title' => t('Path to the roblib search panel page'),
    '#default_value' => variable_get('roblib_search_panel_page', '/roblib/panel'),
    '#description' => t('The Path to the Roblib Search Panel, for example /roblib/panel'),
    '#required' => TRUE,
  );
 

  return system_settings_form($form);
}

/**
 * Implements hook_admin_paths().
 */
function roblib_search_admin_paths() {
  $paths = array(
    'admin/roblib/search' => TRUE,
  );
  return $paths;
}

/**
 * Implements hook_permission().
 */
function roblib_search_permission() {
  return array(
    'search roblib' => array(
      'title' => t('Search all configured targets'),
      'description' => t('Search all Roblib configured targets. This permission exposes the search blocks and allows you to see search results.'),
    ),
    'administer roblib search' => array(
      'title' => t('Administer Roblib Search'),
      'description' => t('Administer settings for the Roblib search client.'),
    ),
  );
}


function roblib_search_block_info() {

  $blocks['roblib_search_form'] = array(
    // info: The name of the block.
    'info' => t('Roblib Global Search Form'),
    // Block caching options (per role, per user, etc.)
    'cache' => DRUPAL_CACHE_PER_ROLE, // default
  );

  return $blocks;
}

function roblib_search_block_view($delta = '') {
  //The $delta parameter tells us which block is being requested.
  switch ($delta) {
    case 'roblib_search_form':
      // The subject is displayed at the top of the block. Note that it
      // should be passed through t() for translation. The title configured
      // for the block using Drupal UI supercedes this one.
      $block['subject'] = t('Bento Search');
      // The content of the block is typically generated by calling a custom
      // function.
      $block['content'] = drupal_get_form('roblib_search_simple_form');
      break;
  }
  return $block;
}

/**
 * Roblib search simple search form submit
 *
 * @param type $form
 * @param array $form_state
 */
function roblib_search_simple_form_submit($form, &$form_state) {
  $form_state['rebuild'] = TRUE;
  $search_string = $form_state['values']['roblib_search_simple_search_query'];
  $redirect_url = variable_get('roblib_search_panel_page','/roblib/panel');

  drupal_goto($redirect_url, array('query' => array('roblib_query' => $search_string)));
}

/**
 * Roblib search simple search form
 *
 * @param type $form
 * @param type $form_state
 * @return array
 */
function roblib_search_simple_form($form, &$form_state) {
  if (isset($_GET['roblib_query'])) {
    $query = $_GET['roblib_query'];
  }
  else {
    $query =  '';
  }

  $form['simple'] = array(
    '#type' => 'container',
    '#attributes' => array(
      'class' => array(
        'container-inline')
      )
    );
  $form['simple']["roblib_search_simple_search_query"] = array(
    '#size' => '15',
    '#type' => 'textfield',
    '#title' => '',
    '#default_value' => $query, 
  );
  $form['simple']['submit'] = array(
    '#type' => 'submit',
    '#value' => t('search')
  );
  return $form;
}

/**
 * Implements hook_help().
 *
 * @param type $path
 * @param type $arg
 * @return type
 */
function roblib_search_help($path, $arg) {
  switch ($path) {
    case 'admin/help#roblib_search':
      return t(
          '<p>
         The Roblib Search is a module to allow searching across multiple targets.
         This module does not know how to retrieve results but fires hooks that other
         modules can implement to gather and display results.
         </p>'         
      );
  }
}