<?php

include "bootstrap.inc";

function solr_search_permission()
{

    return array(
        "administer solr-search" => array(
            "title" => t("administer solr-search"),
            "description" => t("administer solr-search."),
        ));
}

function solr_search_menu()
{
    $items = array();

    // solr search admin settings
    $items['admin/settings/solr_search'] = array(
        'title' => 'TBC Solr-Search admin settings',
        'page callback' => 'drupal_get_form',
        'page arguments' => array('tbc_solr_search_settings_form'),
        'access arguments' => array('administer solr-search'),
        'type' => MENU_NORMAL_ITEM,
        'file' => 'settings.inc',
    );

    $items['tbc_solr_search'] = array(
        'title' => 'Search within Textbook Companion Examples',
        'page callback' => 'drupal_get_form',
        'page arguments' => array('tbc_solr_search_form'),
        'access callback' => true,
        'type' => MENU_NORMAL_ITEM,
    );

    $items['add_all_books_to_solr'] = array(
        'title' => 'Add books to Solr',
        'page callback' => 'drupal_get_form',
        'page arguments' => array('add_all_books_to_solr_form'),
        'access arguments' => array('administer solr-search'),
        'type' => MENU_NORMAL_ITEM,
    );

    return $items;
}

function tbc_solr_search_form($form, &$form_state)
{

    $form['tbc_search_key'] = array(
        '#type' => 'textfield',
        '#title' => t('Enter your keyword (Note: special characters  ^ ( ) { } \" \' [ ] are not allowed)'),
        '#required' => true,
    );
    $form['submit'] = array(
        '#type' => 'submit',
        '#value' => t('Search'),
        '#ajax' => array(
            'callback' => 'ajax_solr_search_result_callback',
        ),
    );
    $form['tbc_search_result'] = array(
        '#type' => 'item',
        '#markup' => '<div id="ajax-search-result-replace"></div>',

    );

    return $form;
}

function tbc_solr_search_form_validate($form, &$form_state)
{

    if (preg_match('/[^a-zA-Z0-9]/', $form_state['values']['tbc_search_key'])) {
        form_set_error('tbc_search_key', t('Special characters not allowed'));
    }
    return;
}

function tbc_solr_search_form_submit($form, &$form_state)
{

    //drupal_goto('tbc_solr_search', array('key' => $_POST['tbc_search_key']));
    // ajax_solr_search_result_callback($form,$form_state);
}
function add_all_books_to_solr_form($form, &$form_state)
{

    $form['submit'] = array(
        '#type' => 'submit',
        '#value' => t('Add to Solr'),
        //    '#suffix' => $output,
    );

    return $form;
}

function add_all_books_to_solr_form_submit($form, &$form_state)
{

    global $user;
    ini_set('max_execution_time', 500000);
    $root_path = variable_get('tbc_example_file_path', '');
    //var_dump($root_path);die;
    $options = array(
        'hostname' => SOLR_SERVER_HOSTNAME,
        'port' => SOLR_SERVER_PORT,
        'login' => SOLR_SERVER_USERNAME,
        'password' => SOLR_SERVER_PASSWORD,
        'path' => SOLR_SERVER_COLLECTION_PATH,

    );

    $client = new SolrClient($options);

    $book_q = db_query("SELECT * FROM {textbook_companion_preference} WHERE approval_status=1 AND proposal_id IN (SELECT id from textbook_companion_proposal where proposal_status=3)");

    while ($book_data = $book_q->fetchObject()) {

        $chapter_q = db_query("SELECT * FROM {textbook_companion_chapter} WHERE preference_id = :pref_id", array(":pref_id" => $book_data->id));

        while ($chapter_row = $chapter_q->fetchObject()) {
            //$example_q = db_query("SELECT * FROM {textbook_companion_example} WHERE chapter_id = %d AND approval_status = 1", $chapter_row->id);
            $query = db_select('textbook_companion_example');
            $query->fields('textbook_companion_example');
            $query->condition('chapter_id', $chapter_row->id);
            $query->condition('approval_status', 1);
            $example_q = $query->execute();
            while ($example_row = $example_q->fetchObject()) {
                //$example_files_q = db_query("SELECT * FROM {textbook_companion_example_files} WHERE example_id = %d", $example_row->id);
                $example_files_q = db_query("select * from textbook_companion_preference tcp join textbook_companion_chapter tcc on tcp.id=tcc.preference_id join textbook_companion_example tce ON tcc.id=tce.chapter_id join textbook_companion_example_files tcef on tce.id=tcef.example_id where tcef.example_id= :example_id", array(
                    ':example_id' => $example_row->id,
                ));
                $extensions = array('R', 'r');
                $example_data = '';
                while ($example_files_row = $example_files_q->fetchObject()) {
                    if (in_array(end(explode('.', $root_path . $example_files_row->directory_name . '/' . $example_files_row->filepath)), $extensions)) {
                        // echo $example_files_row->filepath."<br />";
                        $my_file = $root_path . $example_files_row->directory_name . '/' . $example_files_row->filepath;
                        $handle = fopen($my_file, 'r');
                        $example_data = fread($handle, filesize($my_file));
                        fclose($handle);
                    }
                }
                $doc = new SolrInputDocument();
                $doc->addField('id', $example_row->id);
                $doc->addField('chapter_id', $chapter_row->id);
                $doc->addField('book_id', $book_data->id);
                $doc->addField('title', mb_convert_encoding($book_data->book, "UTF-8"));
                $doc->addField('author', mb_convert_encoding($book_data->author, "UTF-8"));
                $doc->addField('chapter', mb_convert_encoding(($chapter_row->number . '. ' . $chapter_row->name), "UTF-8"));
                $doc->addField('example', mb_convert_encoding(($example_row->number . '. ' . $example_row->caption), "UTF-8"));
                $doc->addField('content', mb_convert_encoding($example_data, "UTF-8"));
                $doc->addField('added_by', $user->name);
                $doc->addField('timestamp', date('Y-m-d H:i:s'));
                $updateResponse = $client->addDocument($doc, false);
                $client->commit();
            }
        }
    }

    drupal_set_message('Books under are updated to solr');
}

function ajax_solr_search_result_callback($form, $form_state)
{
    $output = '';
    //$key = '';
    //var_dump($form_state['values']['tbc_search_key']);die;
    $path = drupal_get_path('module', 'solr_search');
    drupal_add_css($path . '/solr_search.css', 'module');
    drupal_add_js($path . '/solr_search.js', 'module');
    if (isset($form_state['values']['tbc_search_key'])) {
        $key = $form_state['values']['tbc_search_key'];
        $output = '';
        $numfound = '';
        if ($key != '') {
            $options = array(
                'hostname' => SOLR_SERVER_HOSTNAME,
                'login' => SOLR_SERVER_USERNAME,
                'password' => SOLR_SERVER_PASSWORD,
                'port' => SOLR_SERVER_PORT,
                'path' => SOLR_SERVER_COLLECTION_PATH,
            );
            $client = new SolrClient($options);

            $query = new SolrQuery();

            $query->setQuery('content:' . $key);

            $query->setStart(0);

            $query->setRows(variable_get('tbc_solr_max_results', ''));

            $query->addField('id')->addField('book_id')->addField('title')->addField('author')->addField('chapter')->addField('example')->addField('content')->addSortField('title', 0);

            $query_response = $client->query($query);

            $response = $query_response->getResponse();

            $sno = 0;
            $output = '<p><b>' . $response['response']->numFound . ' result(s) found</b></p>';
            if ($response['response']->numFound > 0) {
                $output .= '<div class="search-result"><div id="topcontrol" title="Scroll Back to Top"><a href="#top"></a></div><ol>';
                $download_link = '';
                foreach ($response['response']->docs as $doc) {
                    $sno++;
                    $output .= '<li>';
                    $output .= '<p><b>Book: &nbsp;</b>' . $doc->title . ' (' . $doc->author . ')</p>';
                    $output .= '<p><b>Chapter: &nbsp;</b>' . $doc->chapter . '</p>';
                    $output .= '<p><b>Example: &nbsp;</b>' . $doc->example . '</p>';
                    $output .= '<p><b>Links: </b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href="' . base_path() . 'textbook_companion/generate_book/' . $doc->book_id . '"><span style="font-weight:bold;font-size:16px;">&#10549;</span> Download entire book</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href="https://rcloud.fossee.in/index?eid=' . $doc->id . '" target="_blank"><span style="font-weight:bold;font-size:20px;">&#187;</span> View this example</a></p>';
                    $output .= '</li>';
                }
                $output .= '<ol></div>';
            }
        } else {
            $output .= '<p><b>0 result(s) found</b></p>';
        }
    }

    $commands[] = ajax_command_html("#ajax-search-result-replace", $output);

    return array('#type' => 'ajax', '#commands' => $commands);

}