<?php

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


/**
 * 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;
}


/**
 * A form for managing the modules configuration.
 *
 * @param array $form
 *   A Drupal form array
 * @param array $form_state
 *   A Drupal formstate array
 *
 * @return array
 *   A Drupal form
 */
function roblib_search_config_form($form, &$form_state) {

  $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;
}

function roblib_search_views_data(){
  $data['roblib_search_log']['table']['group'] = t('Roblib Search log');
  $data['roblib_search_log']['table']['base'] = array(
    'field' => 'sid', // This is the identifier field for the view.
    'title' => t('Roblib Search log'),
    'help' => t('Contains the Roblib Bento box search query strings.'),
    'weight' => -10,
  );

  // The individual fields.
  $data['roblib_search_log']['query'] = array(
    'title' => t('the query string field'),
    'help' => t('a plain text field.'),
    'field' => array(
      'handler' => 'views_handler_field',
      'click sortable' => TRUE, // This is use by the table display plugin.
    ),
    'sort' => array(
      'handler' => 'views_handler_sort',
    ),
    'filter' => array(
      'handler' => 'views_handler_filter_string',
    ),
    'argument' => array(
      'handler' => 'views_handler_argument_string',
    ),
  );
  $data['roblib_search_log']['sid'] = array(
    'title' => t('Numeric field'),
    'help' => t('the unique identifier for each row'),
    'field' => array(
      'handler' => 'views_handler_field_numeric',
      'click sortable' => TRUE,
    ),
    'filter' => array(
      'handler' => 'views_handler_filter_numeric',
    ),
    'sort' => array(
      'handler' => 'views_handler_sort',
    ),
  );


  $data['roblib_search_log']['ipaddress'] = array(
    'title' => t('the ipaddress of the user who submitted the search'),
    'help' => t('a plain text field.'),
    'field' => array(
      'handler' => 'views_handler_field',
      'click sortable' => TRUE, // This is use by the table display plugin.
    ),
    'sort' => array(
      'handler' => 'views_handler_sort',
    ),
    'filter' => array(
      'handler' => 'views_handler_filter_string',
    ),
    'argument' => array(
      'handler' => 'views_handler_argument_string',
    ),
  );

  $data['roblib_search_log']['searched_date'] = array(
    'title' => t('Timestamp field'),
    'help' => t('a timestamp field.'),
    'field' => array(
      'handler' => 'views_handler_field',
      'click sortable' => TRUE,
    ),
    'argument' => array('handler' => 'views_handler_argument_date'),
    'sort' => array(
      'handler' => 'views_handler_sort_date',
    ),
    'filter' => array(
      'handler' => 'roblib_search_handler_filter_datetime',
    ),
  );

  return $data;
}

/**
 * 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.'),
    ),
  );
}


/**
 * Implements hook_block_info().
 */
function roblib_search_block_info() {

  $blocks['roblib_search_form'] = array(
    'info' => t('Roblib Global Search Form'),
    'cache' => DRUPAL_CACHE_PER_ROLE,
  );
  $blocks['roblib_search_other'] = array(
    'info' => t('Roblib Search Other Sources'),
    'cache' => DRUPAL_CACHE_PER_ROLE,
  );

  return $blocks;
}

/**
 * Implements hook_theme().
 */
function roblib_search_theme() {
  $path = drupal_get_path('module', 'roblib_search');
  $file = 'theme.inc';

  return array(
    'roblib_search_other_sources' => array(
      'path' => $path . '/theme',
      'file' => $file,
      'template' => 'roblib-search-other-sources',
      'variables' => array('results' => NULL),
    )
  );
}

/**
 * Hook the panels pane preprocessor so we can wrap it in a div for themeing.
 *
 * @param array $variables
 *   Drupal variables array
 * @param $hook
 */
function roblib_search_preprocess_panels_pane(&$variables, $hook){
  switch ($variables['pane']->subtype) {
    case 'roblib_search-roblib_search_other':
      $variables['title_prefix'] = '<div class="roblib-search-header roblib-search-other-sources-header">';
      $variables['title_suffix'] = '</div>';
      break;
  }
}

/**
 * Implements hook_init().
 */
function roblib_search_init() {
  drupal_add_js(drupal_get_path('module', 'roblib_search') . '/js/imagesloaded.pkg.min.js');
  drupal_add_js(drupal_get_path('module', 'roblib_search') . '/js/roblib_search.js');
  drupal_add_css(drupal_get_path('module', 'roblib_search') . '/css/jquery.qtip.min.css');
}

/**
 * Implements hook_block_view().
 */
function roblib_search_block_view($delta = '') {
  switch ($delta) {
    case 'roblib_search_form':
      $block['subject'] = t('Bento Search');
      $block['content'] = drupal_get_form('roblib_search_simple_form');
      break;

    case 'roblib_search_other':
      $block['subject'] = t('Other Sources');
      $block['content'] = theme('roblib_search_other_sources', array('results' => NULL));
  }
  return $block;
}

/**
 * Roblib search simple search form submit.
 *
 * @param array $form
 *   Drupal form array
 * @param array $form_state
 *   Drupal formstate array
 */
function roblib_search_simple_form_submit($form, &$form_state) {
  global $base_url;
  $form_state['rebuild'] = TRUE;
  $search_string = $form_state['values']['roblib_search_simple_search_query'];
  $search_string = filter_xss($search_string);
  roblib_search_log_query($search_string);
  $redirect_url = variable_get('roblib_search_panel_page', 'roblib/panel');
  $redirect_url = $base_url . '/' . $redirect_url;
  drupal_goto($redirect_url, array('query' => array('roblib_query' => $search_string)));
}

/**
 * Logs a search query to a database table.
 *
 * @param string $search_string
 *   The query to log
 */
function roblib_search_log_query($search_string) {
  $eid = db_insert('roblib_search_log')
    ->fields(array(
      'query' => $search_string,
      'searched_date' => format_date(time(), 'custom', 'Y-m-d H:i:s'),
      'ipaddress' => ip_address(),
    ))
    ->execute();
}

/**
 * Roblib search simple search form.
 *
 * @param array $form
 *   Drupal form array
 * @param array $form_state
 *   Drupal formstate
 *
 * @return array
 *   A Drupal formapi array
 */
function roblib_search_simple_form($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' => '',
    '#required' => TRUE,
    '#default_value' => $query,
  );
  $form['simple']['submit'] = array(
    '#type' => 'submit',
    '#value' => t('search')
  );
  return $form;
}

/**
 * Implements hook_help().
 */
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>'
      );
  }
}

class roblib_search_handler_filter_datetime extends views_handler_filter_date {
  function op_between($field) {
    if ($this->operator == 'between') {
      $a = intval(strtotime($this->value['min'], 0));
      $b = intval(strtotime($this->value['max'], 0));
    }
    else {
      $a = intval(strtotime($this->value['max'], 0));
      $b = intval(strtotime($this->value['min'], 0));
    }

    if ($this->value['type'] == 'offset') {
      // changed from original
      $a = (integer)time() + (integer)sprintf('%+d', $a); // keep sign
      $b = (integer)time() + (integer)sprintf('%+d', $b); // keep sign
      // changed from original ends
    }
    // %s is safe here because strtotime scrubbed the input and we might
    // have a string if using offset.
    $this->query->add_where_expression($this->options['group'], "$field >= '".date("Y-m-d H:i:s", $a)."'");
    $this->query->add_where_expression($this->options['group'], "$field <= '".date("Y-m-d H:i:s", $b)."'");
  }

  function op_simple($field) {
    $value = intval(strtotime($this->value['value'], 0));
    if (!empty($this->value['type']) && $this->value['type'] == 'offset') {
      $this->query->add_where_expression($this->options['group'], "$field $this->operator DATE_ADD(NOW(), INTERVAL $value SECOND)");
    } else {
      $this->query->add_where_expression($this->options['group'], "$field $this->operator $value");
    }
  }
}