<?php
/**
 * Ajax Live Search
 *
 * Adds a modern touch to your WordPress search function
 *
 * @since             1.0.0
 * @package           Ajax Live Search
 *
 * Plugin Name:     Ajax Live Search
 * Plugin URI:      http://ajaxlivesearch.xyz
 * Description:     Adds live search, ajax search, query caching, query logging and query completion among other functions
 * Author:          Picocodes
 * Author URI:      http://ajaxlivesearch.xyz
 * Version:         2.2.8
 * Text Domain:     ajax-live-search
 * License:         GPL3+
 * License URI:     http://www.gnu.org/licenses/gpl-3.0.txt
 * Domain Path:     /languages
 *
 * @author          Picocodes
 * @author          Lord Pappi
 * @license         GNU General Public License, version 3
 * @copyright       Picocodes
 */

// Exit if accessed directly
if( !defined( 'ABSPATH' ) ) {
    die;
}

    /**
     * ajaxLiveSearch main class
     *
     * @package     Ajax Live Search / includes
     * @since       1.0.0
     */

    if ( ! class_exists( 'ajaxLiveSearch' ) ) {

        /**
         * Main ajaxLiveSearch class
         *
         * @since       1.0.0
         */
        class ajaxLiveSearch {

            /**
             * @var       Plugin version
             * @since       2.1.1
             */

            public $version = '2.2.8';
			
            /**
             * Use this value as the text domain when translating strings from this plugin. It should match
             * the Text Domain field set in the plugin header, as well as the directory name of the plugin.
             * Additionally, text domains should only contain letters, number and hypens, not underscores
             * or spaces.
             *
             * @access      protected
             * @var         string $plugin_slug The unique ID (slug) of this plugin
             * @since       2.1.1
             */
            protected $plugin_slug = 'ajax-live-search';

            /**
             * @access      protected
             * @var         string $plugin_network_activated Check for plugin network activation
             * @since       2.1.1
             */
            protected $plugin_network_activated = null;

            /**
             * @access      private
             * @var        obj $instance The one true ajaxLiveSearch
             * @since       2.1.1
             */
            private static $instance = null;
			
			 /**
             * @access      public
             * @since       2.1.1
             */
            public $search = null;
			
			/**
             * @access      public
             * @since       2.2.2
             */
            public $plugin_path = null;
			
			/**
             * @access      public
             * @since       2.2.2
             */
            public $plugin_url = null;
			
            /**
             * Get active instance
             *
             * @access      public
             * @since       2.1.1
             * @return      self::$instance The one true ajaxLiveSearch
             */
            public static function instance() {
				
                if ( is_null( self::$instance ) ) {
                    self::$instance = new self();									
                }

                return self::$instance;
            }
			
			/**
			 * aLs Constructor.
			 */
			public function __construct() {
				
				add_action( 'init', array( $this, 'init' ), 2 );
				
			}
			
			/**
             * Inititalizes everything
             *
             * @access      public
             * @since       2.2.7
             * @return      string
             */
            public function init() {
                if( class_exists('ajaxLiveSearchPro') ) //The premium version is installed
					return;
				
				$this->plugin_path = $this->plugin_path();
				$this->plugin_url = $this->plugin_url();
				
				$this->includes();
				$this->init_hooks();
				
				// Since version 2.1.1 we changed our db structure
				$current = (int) get_option ( 'als_db_version', '1' );
				
				if ( $current < 211 ) {
					
					$this->upgradedb();
					
				}
				
				if( $current != 228) {
					//Update to current version
					update_option ( 'als_db_version', '228' );
					
				}
								
				$this->search = new alsSearch();
				
				do_action('als-loaded');
           }
		   
			/**
             * Plugin path
             *
             * @access      public
             * @since       2.2.2
             * @return      string
             */
            public function plugin_path() {
                return trailingslashit( plugin_dir_path( __FILE__ ) );
           }
		   
		   /**
             * Plugin url
             *
             * @access      public
             * @since       2.2.2
             * @return      string
             */
            public function plugin_url() {
                return plugins_url( '/', __FILE__ );
           }

            /**
             * Include necessary files
             *
             * @access      public
             * @since       2.1.1
             * @return      void
             */
            private function includes() {
				
				 // Elementa
                require_once $this->plugin_path . 'includes/elementa/elementa.php';
				
				 // Include general functions
                require_once $this->plugin_path . 'includes/functions.php';
				
				 // Include general hooks
                require_once $this->plugin_path . 'includes/hooks.php';
				
                // Include admin options
                require_once $this->plugin_path . 'includes/admin/admin.php';

				// Include main search class
                require_once $this->plugin_path . 'includes/class-search.php';
			
				// Include Porter stemmer
                require_once $this->plugin_path . 'includes/porter-stemmer.php';
            }

            /**
             * Run action and filter hooks
             *
             * @access      private
             * @since       2.1.1
             * @return      void
             */
            private function init_hooks() {

                // Activate plugin when new blog is added
                add_action( 'wpmu_new_blog', array( $this, 'activate_new_site' ) );

                // Load plugin text domain
                add_action( 'plugins_loaded', array( $this, 'load_plugin_textdomain' ), 20 );

            }
			
			/**
             * Fired whenever upgrading from an older version or installing a new version
             *
             * @access      private
             * @since       2.1.1
             * @return      void
             */
            private static function upgradedb() {
				global $wpdb;
				require_once(ABSPATH . 'wp-admin/includes/upgrade.php');

				$charset_collate_bin_column = '';
				$charset_collate = '';

				if (!empty($wpdb->charset)) {
    				$charset_collate_bin_column = "CHARACTER SET $wpdb->charset";
					$charset_collate = "DEFAULT $charset_collate_bin_column";
				}
				
				if (strpos($wpdb->collate, "_") > 0) {
    				$charset_collate_bin_column .= " COLLATE " . substr($wpdb->collate, 0, strpos($wpdb->collate, '_')) . "_bin";
    				$charset_collate .= " COLLATE $wpdb->collate";
				} else {
					
    				if ($wpdb->collate == '' && $wpdb->charset == "utf8") {
	    				$charset_collate_bin_column .= " COLLATE utf8_bin";
					}
					
				}
    

				$searches_log_table = $wpdb->prefix . "als_log";
				$index_table = $wpdb->prefix . "als_index";
				
				$sql = "CREATE TABLE IF NOT EXISTS " . $searches_log_table . " (id bigint(9) NOT NULL AUTO_INCREMENT, 
					query varchar(200) NOT NULL,
					modified varchar(200) NOT NULL,
					indexed varchar(200) NOT NULL,					
					hits mediumint(9) NOT NULL DEFAULT '0',
					searches mediumint(9) NOT NULL DEFAULT '1',
					time timestamp DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
					UNIQUE KEY id (id)) $charset_collate;";

				dbDelta($sql);
				$wpdb->query("ALTER TABLE {$searches_log_table} ENGINE=MyISAM");
				$wpdb->query("CREATE FULLTEXT INDEX indexed ON {$searches_log_table} (indexed)");
				
				$sql = "CREATE TABLE IF NOT EXISTS " . $index_table . " (id bigint(9) NOT NULL, 
					title varchar(200),
					content TEXT,
					comment_count INT(9),
					comment TEXT,
					url varchar(200),
					excerpt TEXT,
					post_type varchar(200),
					date timestamp NOT NULL,
					boost int(9) NOT NULL DEFAULT '1',
					UNIQUE KEY id (id)) $charset_collate;";

				dbDelta($sql);
				
				//WE also add full text indexes on individual keys to exhibit individual importance
				
				$wpdb->query("ALTER TABLE {$index_table} ENGINE=MyISAM");
				$wpdb->query("CREATE FULLTEXT INDEX title ON {$index_table} (title)");
				$wpdb->query("CREATE FULLTEXT INDEX content ON {$index_table} (content)");
				$wpdb->query("CREATE FULLTEXT INDEX comment ON {$index_table} (comment)");
				$wpdb->query("CREATE FULLTEXT INDEX url ON {$index_table} (url)");
				$wpdb->query("CREATE FULLTEXT INDEX excerpt ON {$index_table} (excerpt)");
				$wpdb->query("ANALYZE TABLE {$index_table}");
				
				update_option ( 'als_db_version', '222' );
            }
			
			/**
             * Loads the textdomain
             *
             * @access      public
             * @since       2.1.1
             * @return      void
             */
            public function load_plugin_textdomain() {
				
                load_plugin_textdomain(
					'ajax-live-search',
					false,
					$this->plugin_path . 'languages/'
				);
				
            }
			

        }
    }
	
function als_lite() {
	return ajaxLiveSearch::instance();
}

als_lite();