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Current File : /home/ailwtbdh/www/wp-content/plugins/wpforo/includes/installation.php
<?php
// Exit if accessed directly
if( ! defined( 'ABSPATH' ) ) exit;

function wpforo_activation() {
	#################################################################
	// Create wpForo Tables /////////////////////////////////////////
	wpforo_create_tables();

	#################################################################
	// Alter wpForo Tables //////////////////////////////////////////
	wpforo_alter_tables();

	#################################################################
	// Permalink Settings ///////////////////////////////////////////
	wpforo_fix_wp_permalink_structure();

	#################################################################
	// Access Sets //////////////////////////////////////////////////
	wpforo_import_default_accesses();

	#################################################################
	// fix already installed options ////////////////////////////////
	wpforo_fix_installed_options();

	#################################################################
	// synchronize users ////////////////////////////////////////////
	WPF()->member->synchronize_users( 100 );
	WPF()->member->init_current_user();
	WPF()->member->clear_db_cache();

	#################################################################
	// Importing Language Packs and Phrases /////////////////////////
	WPF()->phrase->xml_import( 'english.xml' );
	WPF()->phrase->clear_cache();

	#################################################################
	// Creating Forum Page //////////////////////////////////////////
	wpforo_create_forum_page();

	#################################################################
	// Forum Navigation and Menu ////////////////////////////////////
	wpforo_import_default_menus();

	#################################################################
	// Boards ////////////////////////////////////////////////////
	wpforo_import_default_board();

	#################################################################
	// Usergroup ////////////////////////////////////////////////////
	wpforo_import_default_usergroups();

	#################################################################
	// Forums ////////////////////////////////////////////////////
	wpforo_import_default_forums();

	#################################################################
	// UPDATE THEME OPTIONS  ////////////////////////////////////////
	wpforo_update_theme_options();

	#################################################################
	// wpForo Upgrade ///////////////////////////////
	wpforo_upgrade();

	#################################################################
	// UPDATE VERSION - END /////////////////////////////////////////
	wpforo_update_option( 'version', WPFORO_VERSION );
	WPF()->notice->clear();

	#################################################################
	// DELETE ALL CAHCES /////////////////////////////////////////
	wpforo_clean_cache();
	// At the moment only Redis Object Cache should be flushed because it causes 404 error for all forum pages.
	if( function_exists( 'redis_object_cache' ) ) {
		wp_cache_flush();
	}

	#################################################################
	// Schedule AI Cache Cleanup Cron ///////////////////////////////
	WPF()->ai_client->schedule_cache_cleanup();

	// Schedule daily subscription sync (updates cached subscription status)
	WPF()->ai_client->schedule_daily_subscription_sync();

	// Schedule AI Moderation Log Cleanup Cron
	\wpforo\classes\AIContentModeration::get_instance()->schedule_moderation_cleanup();

	// Note: AI Pending Topics Indexing Cron is scheduled when user
	// enables auto-indexing in the admin settings (disabled by default)
}

function wpforo_upgrade() {
	if( version_compare( wpforo_get_option( 'version', '', false ), '2.0.3', '<' ) ) {
		// ####  migrate old options to new settings
		require_once WPFORO_DIR . "/includes/options-migration.php";
		_wpforo_migrate_old_options_to_new();
		_wpforo_migrate_old_widgets_to_new();
	}

	// Migrate menu for Recent Activity page (upgrade from 2.x to 3.x)
	$old_version = wpforo_get_option( 'version', '', false );
	if( $old_version && version_compare( $old_version, '3.0.0', '<' ) ) {
		wpforo_migrate_recent_activity_menu();
		wpforo_migrate_theme_styles();
	}

	// Migrate AI quality defaults to faster tiers (3.0.3+)
	// Runs for all versions - has its own one-time flag check
	wpforo_migrate_ai_quality_defaults();
}

function wpforo_create_tables() {
	require_once( WPFORO_DIR . '/includes/install-sql.php' );
	foreach( wpforo_get_install_sqls() as $sql ) {
		if( false === @WPF()->db->query( $sql ) ) {
			@WPF()->db->query( preg_replace( '#\)\s*ENGINE.*$#isu', ')', $sql ) );
		}
	}
}

function wpforo_alter_tables() {
	#################################################################
	// ADD `status` field in `languages` TABLE //////////////////////////////////////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->languages, 'col' => 'status', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->languages . "` ADD COLUMN `status` TINYINT(1) NOT NULL DEFAULT 1" );
	}

	#################################################################
	// ADD `package` field in `phrases` TABLE //////////////////////////////////////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->phrases, 'col' => 'package', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->phrases . "` ADD `package` VARCHAR(255) NOT NULL DEFAULT 'wpforo'" );
	}
	//	WPF()->phrase->clear_cache();

	#################################################################
	// ADD `private` field in TOPIC TABLE  ///////////////////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->topics, 'col' => 'private', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->topics . "` ADD `private` TINYINT(1) NOT NULL DEFAULT '0', ADD INDEX `is_private` (`private`);" );
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->topics . "` ADD INDEX `own_private` ( `userid`, `private`);" );
	}
	// ADD `solved` field in TOPIC TABLE  ///////////////////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->topics, 'col' => 'solved', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->topics . "` ADD `solved` TINYINT(1) NOT NULL DEFAULT 0 AFTER `type`, ADD INDEX `solved` (`solved`)" );
		@WPF()->db->query(
			"UPDATE `" . WPF()->tables->topics . "` t
								INNER JOIN `" . WPF()->tables->posts . "` p ON p.`topicid` = t.`topicid` AND p.`is_answer` = 1
								SET t.`solved` = 1
								WHERE t.`solved` = 0"
		);
		wpforo_clean_cache();
	}
	// ADD `status` field in TOPICS & POSTS TABLE  ///////////////////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->topics, 'col' => 'status', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->topics . "` ADD `status` TINYINT(1) NOT NULL DEFAULT '0', ADD INDEX `status` (`status`);" );
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->posts . "` ADD `status` TINYINT(1) NOT NULL DEFAULT '0', ADD INDEX `status` (`status`);" );
	}
	// ADD `name` and `email` field in TOPIC TABLE  ///////////////////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->topics, 'col' => 'name', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->topics . "` ADD `name` VARCHAR(50) NOT NULL,  ADD `email` VARCHAR(50) NOT NULL" );
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->posts . "` ADD `name` VARCHAR(50) NOT NULL,  ADD `email` VARCHAR(50) NOT NULL" );
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->topics . "` ADD KEY `email` (`email`)" );
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->posts . "` ADD KEY `email` (`email`)" );
	}
	// ADD `utitle`, `role` and `access` to USERGROUP TABLE  /////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->usergroups, 'col' => 'utitle', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->usergroups . "` ADD `utitle` VARCHAR(100), ADD `role` VARCHAR(50), ADD `access` VARCHAR(50)" );
		@WPF()->db->query( "UPDATE `" . WPF()->tables->usergroups . "` SET `utitle` = 'Admin', `role` = 'administrator', `access` = 'full' WHERE `groupid` = 1" );
		@WPF()->db->query( "UPDATE `" . WPF()->tables->usergroups . "` SET `utitle` = 'Moderator', `role` = 'editor', `access` = 'moderator' WHERE `groupid` = 2" );
		@WPF()->db->query( "UPDATE `" . WPF()->tables->usergroups . "` SET `utitle` = 'Registered', `role` = 'subscriber', `access` = 'standard' WHERE `groupid` = 3" );
		@WPF()->db->query( "UPDATE `" . WPF()->tables->usergroups . "` SET `utitle` = 'Guest', `role` = '', `access` = 'read_only' WHERE `groupid` = 4" );
		@WPF()->db->query( "UPDATE `" . WPF()->tables->usergroups . "` SET `utitle` = 'Customer', `role` = 'customer', `access` = 'standard' WHERE `groupid` = 5" );
		@WPF()->db->query( "UPDATE `" . WPF()->tables->usergroups . "` SET `utitle` = 'name', `role` = 'subscriber', `access` = 'standard' WHERE `utitle` IS NULL OR `utitle` = ''" );
	}
	#################################################################
	// ADD `color` field in usergroups TABLE  ///////////////////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->usergroups, 'col' => 'color', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->usergroups . "` ADD `color` varchar(7) NOT NULL DEFAULT ''" );
		@WPF()->db->query( "UPDATE `" . WPF()->tables->usergroups . "` SET `color` = '#FF3333' WHERE `groupid` = 1" );
		@WPF()->db->query( "UPDATE `" . WPF()->tables->usergroups . "` SET `color` = '#0066FF' WHERE `groupid` = 2" );
		@WPF()->db->query( "UPDATE `" . WPF()->tables->usergroups . "` SET `color` = '#222222' WHERE `groupid` = 4" );
		@WPF()->db->query( "UPDATE `" . WPF()->tables->usergroups . "` SET `color` = '#993366' WHERE `groupid` = 5" );
	}
	#################################################################
	// ADD `visible` field in usergroups TABLE  ///////////////////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->usergroups, 'col' => 'visible', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->usergroups . "` ADD `visible` TINYINT(1) NOT NULL DEFAULT 1;" );
	}
	#################################################################
	// ADD `status` field in `languages` TABLE //////////////////////////////////////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->usergroups, 'col' => 'is_default', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->usergroups . "` ADD COLUMN `is_default` TINYINT(1) NOT NULL DEFAULT 0" );
	}
	#################################################################
	// ADD `online_time` field in profiles TABLE  ///////////////////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->profiles, 'col' => 'online_time', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->profiles . "` ADD `online_time` INT UNSIGNED NOT NULL DEFAULT 0, ADD KEY (`online_time`)" );
	}
	// ADD `is_email_confirmed` field in profiles TABLE  ///////////////////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->profiles, 'col' => 'is_email_confirmed', 'check' => 'col_exists' ] ) ) {
		WPF()->db->query( "ALTER TABLE `" . WPF()->tables->profiles . "` ADD `is_email_confirmed` TINYINT(1) NOT NULL DEFAULT 0, ADD KEY (`is_email_confirmed`)" );
		WPF()->db->query(
			"UPDATE `" . WPF()->tables->profiles . "`
                                 JOIN `" . WPF()->tables->subscribes . "`
                                       ON `" . WPF()->tables->subscribes . "`.`userid` = `" . WPF()->tables->profiles . "`.`userid`
                                            SET `" . WPF()->tables->profiles . "`.`is_email_confirmed` = 1
                                                WHERE `" . WPF()->tables->subscribes . "`.`active` = 1"
		);
		WPF()->db->query( "UPDATE `" . WPF()->tables->profiles . "` SET `is_email_confirmed` = 1 WHERE `groupid` = 1" );
	}
	#################################################################
	// DROP uname unique key from profiles TABLE  ///////////////////////////
	if( wpforo_db_check( [ 'table' => WPF()->tables->profiles, 'col' => 'UNIQUE USERNAME', 'check' => 'key_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->profiles . "` DROP KEY `UNIQUE USERNAME`" );
	}
	if( wpforo_db_check( [ 'table' => WPF()->tables->profiles, 'col' => 'UNIQUE ID', 'check' => 'key_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->profiles . "` DROP KEY `UNIQUE ID`" );
	}
	#################################################################
	// ADD `private` field in post TABLE  ///////////////////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->posts, 'col' => 'private', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->posts . "` ADD `private` TINYINT(1) NOT NULL DEFAULT 0, ADD INDEX `is_private` (`private`)" );
	}
	#################################################################
	//Add user_name col in subsciption table///////////////////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->subscribes, 'col' => 'user_name', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->subscribes . "` ADD `user_name` VARCHAR(60) NOT NULL DEFAULT ''" );
	}
	//Add user_email col in subsciption table
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->subscribes, 'col' => 'user_email', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->subscribes . "` ADD `user_email` VARCHAR(60) NOT NULL DEFAULT ''" );
	}
	//Add indexes for subscribe new fields
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->subscribes, 'col' => 'fld_group_unq', 'check' => 'key_exists' ] ) ) {
		$args = [ 'table' => WPF()->tables->subscribes, 'col' => 'itemid', 'check' => 'key_exists' ];
		if( wpforo_db_check( $args ) ) @WPF()->db->query( "ALTER TABLE `" . WPF()->tables->subscribes . "` DROP KEY `itemid`" );
		wpforo_add_unique_key( WPF()->tables->subscribes, 'subid', 'fld_group_unq', '`itemid`, `type`, `userid`, `user_email`(60)' );
	}
	if( strtolower( (string) wpforo_db_check( [ 'table' => WPF()->tables->subscribes, 'col' => 'type', 'check' => 'col_type' ] ) ) !== 'varchar(50)' ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->subscribes . "` MODIFY `type` VARCHAR(50) NOT NULL" );
	}
	####################################################################
	//Add index for double condition queries to avoid SQl caching///////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->posts, 'col' => 'forumid_status', 'check' => 'key_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->posts . "` ADD KEY `forumid_status` (`forumid`,`status`)" );
	}
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->posts, 'col' => 'topicid_status', 'check' => 'key_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->posts . "` ADD KEY `topicid_status` (`topicid`,`status`)" );
	}
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->posts, 'col' => 'topicid_solved', 'check' => 'key_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->posts . "` ADD KEY `topicid_solved` (`topicid`,`is_answer`)" );
	}
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->topics, 'col' => 'forumid_status', 'check' => 'key_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->topics . "` ADD KEY `forumid_status` (`forumid`,`status`)" );
	}
	$topic_slug_key = @WPF()->db->get_row( "SHOW KEYS FROM `" . WPF()->tables->topics . "` WHERE `Key_name` LIKE 'slug'", ARRAY_A );
	if( $topic_slug_key && intval( wpfval( $topic_slug_key, 'Non_unique' ) ) === 0 ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->topics . "` DROP INDEX slug, ADD KEY slug (`slug`(191))" );
	}
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->posts, 'col' => 'topicid_parentid', 'check' => 'key_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->posts . "` ADD KEY `topicid_parentid` (`topicid`,`parentid`)" );
	}
	#################################################################
	// ADD `secondary_groupids` field in profiles TABLE  //////////////
	/*if( ! wpforo_db_check( [ 'table' => WPF()->tables->profiles, 'col' => 'secondary_groups', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->profiles . "` ADD `secondary_groups` VARCHAR(255)" );
	}*/
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->usergroups, 'col' => 'secondary', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->usergroups . "` ADD `secondary` TINYINT(1) NOT NULL DEFAULT 0;" );
		@WPF()->db->query( "UPDATE `" . WPF()->tables->usergroups . "` SET `secondary` = 1 WHERE `groupid` IN(3,5)" );
	}
	#################################################################
	// ADD `fields` field in profiles TABLE  ////////////////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->profiles, 'col' => 'fields', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->profiles . "` ADD `fields` LONGTEXT" );
	}
	#################################################################
	// Change `phrase_key` type in phrases TABLE  ///////////////////
	if( strtolower( (string) wpforo_db_check( [ 'table' => WPF()->tables->phrases, 'col' => 'phrase_key', 'check' => 'col_type' ] ) ) !== 'text' ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->phrases . "` MODIFY `phrase_key` TEXT" );
	}
	#################################################################
	// ADD `prefix` and `tags` fields in TOPIC TABLE  ///////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->topics, 'col' => 'tags', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query(
			"ALTER TABLE `" . WPF()->tables->topics . "`
			ADD `prefix` VARCHAR(100) NOT NULL DEFAULT '',
			ADD `tags` TEXT,
			ADD KEY (`prefix`),
			ADD KEY (`tags`(190))"
		);
	}
	#################################################################
	//Add last_post indexes for forums and topics tables ////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->forums, 'col' => 'last_postid', 'check' => 'key_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->forums . "` ADD KEY(`last_postid`)" );
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->topics . "` ADD KEY `forumid_status_private` ( `forumid`,`status`,`private` ), ADD KEY(`last_post`)" );
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->posts . "`  ADD KEY `forumid_status_private` (`forumid`, `status`, `private`)" );
	}
	#################################################################
	//Add cover and cover_height fields to forums table ////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->forums, 'col' => 'cover', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query(
			"ALTER TABLE `" . WPF()->tables->forums . "`
			ADD COLUMN `cover`        BIGINT UNSIGNED NOT NULL DEFAULT 0,
		    ADD COLUMN `cover_height` INT(4) UNSIGNED NOT NULL DEFAULT 150"
		);
	}

	#################################################################
	//rename column from cat_layout to layout in forums table ////////////
	if( wpforo_db_check( [ 'table' => WPF()->tables->forums, 'col' => 'cat_layout', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query(
			"ALTER TABLE `" . WPF()->tables->forums . "`
			CHANGE COLUMN `cat_layout` `layout` tinyint(1) UNSIGNED NOT NULL DEFAULT 0"
		);
	}
	#################################################################
	//Add unique keys in VISITS TABLE ///////////////////////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->visits, 'col' => 'unique_tracking', 'check' => 'key_exists' ] ) ) {
		wpforo_add_unique_key( WPF()->tables->visits, 'id', 'unique_tracking', '`userid`,`ip`,`forumid`,`topicid`' );
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->visits . "` ADD KEY `time_forumid` (`time`, `forumid`)" );
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->visits . "` ADD KEY `time_topicid` (`time`, `topicid`)" );
	}
	#################################################################
	// ADD `color` field in forums TABLE  ///////////////////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->forums, 'col' => 'color', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->forums . "` ADD `color` varchar(7) NOT NULL DEFAULT ''" );
		@WPF()->db->query( "UPDATE `" . WPF()->tables->forums . "` SET `color` = concat('#',SUBSTRING((lpad(hex(round(rand() * 10000000)),6,0)),-6))" );
	}
	#################################################################
	// ADD `root` fields in POSTS TABLE  ///////////////
	//$post_table_count = @WPF()->db->get_var("SELECT COUNT(*) FROM `".WPF()->tables->posts."`");
	//if( $post_table_count < 100000 ){
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->posts, 'col' => 'root', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->posts . "` ADD `root` BIGINT, ADD KEY(`root`)" );
	}
	//}
	#################################################################
	// ADD `new` in ACTIVITY TABLE  /////////////////////////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->activity, 'col' => 'new', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->activity . "` ADD `new` TINYINT NOT NULL DEFAULT '0' AFTER `permalink`, ADD KEY `itemtype_userid_new` (`itemtype`, `userid`, `new`)" );
	}

	#################################################################
	// Change `last_userid` type in forums TABLE  ///////////////////
	if( strtolower( (string) wpforo_db_check( [ 'table' => WPF()->tables->forums, 'col' => 'last_userid', 'check' => 'col_type' ] ) ) !== 'varchar(255)' ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->forums . "` CHANGE `last_userid` `last_userid` VARCHAR(255) NOT NULL" );
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->forums . "` ADD KEY `last_userid` (`last_userid`(191));" );
	}

	################################################################
	// likes and votes Table to new reactions table ////////////////
	if( wpforo_db_check( [ 'table' => wpforo_fix_table_name( 'votes' ), 'check' => 'table_exists' ] ) ) {
		$sql = "INSERT IGNORE INTO `" . WPF()->tables->reactions . "` (
			SELECT NULL, `userid`, `postid`, `post_userid`, `reaction`, IF( `reaction` = 1, 'up', 'down' ), NULL, NULL
				FROM `" . wpforo_fix_table_name( 'votes' ) . "`
		)";
		WPF()->db->query( $sql );
		$sql = "DROP TABLE `" . wpforo_fix_table_name( 'votes' ) . "`";
		WPF()->db->query( $sql );
	}

	if( wpforo_db_check( [ 'table' => wpforo_fix_table_name( 'likes' ), 'check' => 'table_exists' ] ) ) {
		$sql = "INSERT IGNORE INTO `" . WPF()->tables->reactions . "` (
			SELECT NULL, `userid`, `postid`, `post_userid`, 1, 'up', NULL, NULL
				FROM `" . wpforo_fix_table_name( 'likes' ) . "`
		)";
		WPF()->db->query( $sql );
		$sql = "DROP TABLE `" . wpforo_fix_table_name( 'likes' ) . "`";
		WPF()->db->query( $sql );
	}

	if( ! wpforo_db_check( [ 'table' => WPF()->tables->reactions, 'col' => 'performance', 'check' => 'key_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->reactions . "` ADD KEY `performance` (`postid`,`post_userid`,`type`)" );
	}

    #################################################################
    // ADD `type` field in forums TABLE for ticket/private forums
    // Default is 'forum', 'ticket_forum' forces all topics to be private
    if( ! wpforo_db_check( [ 'table' => WPF()->tables->forums, 'col' => 'type', 'check' => 'col_exists' ] ) ) {
        @WPF()->db->query( "ALTER TABLE `" . WPF()->tables->forums . "` ADD `type` VARCHAR(20) NOT NULL DEFAULT 'forum'" );
    }

    // ADD indexed, local, cloud, task_tag fields and indexes in TOPICS TABLE  ///////////////////////////
    if( ! wpforo_db_check( [ 'table' => WPF()->tables->topics, 'col' => 'indexed', 'check' => 'col_exists' ] ) ) {
        @WPF()->db->query( "ALTER TABLE `" . WPF()->tables->topics . "`
            ADD `indexed` VARCHAR(32),
            ADD `local` TINYINT(1) NOT NULL DEFAULT 0,
            ADD `cloud` TINYINT(1) NOT NULL DEFAULT 0,
            ADD `task_tag` TINYINT(1) NOT NULL DEFAULT 0,
            ADD INDEX `indexed` (`indexed`),
            ADD INDEX `local` (`local`),
            ADD INDEX `cloud` (`cloud`),
            ADD INDEX `task_tag` (`task_tag`)" );
    }

	################################################################
	// profiles table fields fixing ////////////////////////////////
	if( wpforo_db_check( [ 'table' => WPF()->tables->profiles, 'col' => 'facebook', 'check' => 'col_exists' ] ) ) {
		$sql = "SELECT `userid`, `facebook`, `twitter`, `skype`, `fields`
			FROM `" . WPF()->tables->profiles . "`
			WHERE (`facebook` IS NOT NULL AND `facebook` <> '')
				OR (`twitter` IS NOT NULL AND `twitter`  <> '')
				OR (`skype`   IS NOT NULL AND `skype`    <> '')";
		if( $users = (array) WPF()->db->get_results( $sql, ARRAY_A ) ) {
			foreach( $users as $user ) {
				$user['userid'] = wpforo_bigintval( $user['userid'] );
				$facebook       = trim( (string) $user['facebook'] );
				$twitter        = trim( (string) $user['twitter'] );
				$skype          = trim( (string) $user['skype'] );
				$user['fields'] = array_merge( (array) json_decode( $user['fields'], true ), compact( 'facebook', 'twitter', 'skype' ) );
				$user['fields'] = wp_json_encode( $user['fields'] );
				WPF()->db->update(
					WPF()->tables->profiles,
					[ 'fields' => $user['fields'] ],
					[ 'userid' => $user['userid'] ],
					'%s',
					'%d'
				);
			}
		}

		@WPF()->db->query(
			"ALTER TABLE `" . WPF()->tables->profiles . "`
			DROP COLUMN `username`,
			DROP COLUMN `last_login`,
			DROP COLUMN `icq`,
			DROP COLUMN `aim`,
			DROP COLUMN `yahoo`,
			DROP COLUMN `msn`,
			DROP COLUMN `gtalk`,
			DROP COLUMN `like`,
			DROP COLUMN `site`,
			DROP COLUMN `facebook`,
			DROP COLUMN `twitter`,
			DROP COLUMN `skype`,
			ADD COLUMN `topics` INT UNSIGNED NOT NULL DEFAULT 0 AFTER `posts`,
			ADD COLUMN `reactions_in` TEXT AFTER `comments`,
			ADD COLUMN `reactions_out` TEXT AFTER `reactions_in`,
			ADD COLUMN `points` INT NOT NULL DEFAULT 0 AFTER `reactions_out`,
			CHANGE COLUMN `secondary_groups` `secondary_groupids` VARCHAR(255) AFTER `groupid`,
			CHANGE COLUMN `rank` `custom_points` INT NOT NULL DEFAULT 0 AFTER `points`,
			MODIFY COLUMN `avatar` VARCHAR(255) AFTER `secondary_groupids`,
			MODIFY COLUMN `online_time` INT UNSIGNED AFTER `custom_points`,
			MODIFY COLUMN `timezone` VARCHAR(255) NOT NULL DEFAULT '' AFTER `online_time`,
			MODIFY COLUMN `location` VARCHAR(255) AFTER `timezone`,
			ADD COLUMN `cover` VARCHAR(255) NOT NULL DEFAULT '' AFTER `avatar`,
			ADD COLUMN `is_mention_muted` TINYINT(1) NOT NULL DEFAULT 0 AFTER `is_email_confirmed`"
		);
	}

	#################################################################
	// Add content_type column to ai_embeddings table //////////////
	if( ! wpforo_db_check( [ 'table' => WPF()->tables->ai_embeddings, 'col' => 'content_type', 'check' => 'col_exists' ] ) ) {
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->ai_embeddings . "` ADD COLUMN `content_type` VARCHAR(20) NOT NULL DEFAULT 'forum' COMMENT 'forum or WordPress post_type'" );
		@WPF()->db->query( "ALTER TABLE `" . WPF()->tables->ai_embeddings . "` ADD KEY `idx_content_type` (`content_type`)" );
	}

	WPF()->db->query( "TRUNCATE TABLE `" . WPF()->tables->visits . "`" );
}

function wpforo_board_repair( $boardid ) {
	if( ! wpforo_is_admin() ) return;
	if( ! current_user_can( 'activate_plugins' ) ) return;

	WPF()->change_board( $boardid );

	wpforo_activation();

	foreach( wpforo_get_addons_info() as $key => $addon ) {
		if( ( $addon['base'] || wpforo_is_module_enabled( $key ) ) && is_callable( wpfval( $addon, 'install_func' ) ) ) {
			call_user_func( $addon['install_func'] );
		}
	}
}

function wpforo_board_uninstall( $boardid ) {
	if( ! wpforo_is_admin() ) return;
	if( ! current_user_can( 'activate_plugins' ) ) return;

	WPF()->change_board( $boardid );
	WPF()->board->delete( $boardid );
	foreach( WPF()->_tables as $table ) WPF()->db->query( "DROP TABLE IF EXISTS `" . wpforo_fix_table_name( $table ) . "`" );

	WPF()->db->query(
		"DELETE FROM `" . WPF()->db->options . "`
        WHERE `option_name` LIKE 'widget_wpforo_widget_%'
        OR `option_name` REGEXP '^" . wpforo_prefix() . "'"
	);
	WPF()->db->query( "DELETE FROM `" . WPF()->db->usermeta . "` WHERE `meta_key` REGEXP '^" . wpforo_prefix() . "'" );

	wpforo_remove_directory( WPF()->folders['upload']['dir'] );
}

function wpforo_uninstall() {
	if( ! wpforo_is_admin() ) return;
	if( ! current_user_can( 'activate_plugins' ) ) return;
	require_once ABSPATH . 'wp-admin/includes/plugin.php';
	foreach( WPF()->board->get_boards( [ 'orderby' => '`boardid` DESC' ] ) as $board ) wpforo_board_uninstall( $board['boardid'] );
	WPF()->db->query(
		"DELETE FROM `" . WPF()->db->options . "`
	        WHERE `option_name` LIKE 'widget_wpforo%'
	        OR `option_name` REGEXP '^" . WPF()->base_prefix . "'"
	);
	WPF()->db->query( "DELETE FROM `" . WPF()->db->usermeta . "` WHERE `meta_key` REGEXP '^" . WPF()->base_prefix . "'" );
	foreach( WPF()->_base_tables as $table ) WPF()->db->query( "DROP TABLE IF EXISTS `" . wpforo_fix_table_name( $table ) . "`" );
	deactivate_plugins( WPFORO_BASENAME );
}

function wpforo_profile_notice() {
	if( is_multisite() ) {
		$users = WPF()->db->get_var( "SELECT COUNT(*) FROM `" . WPF()->db->usermeta . "` WHERE `meta_key` LIKE '" . WPF()->blog_prefix . "capabilities'" );
	} else {
		$users = WPF()->db->get_var( "SELECT COUNT(*) FROM `" . WPF()->db->users . "`" );
	}
	$profiles = WPF()->db->get_var( "SELECT COUNT(*) FROM `" . WPF()->tables->profiles . "`" );
	$delta    = $users - $profiles;
	$status   = ( $delta > 2 ) ? round( ( ( $profiles * 100 ) / $users ), 1 ) . '% (' . $profiles . ' / ' . $users . ') ' : '100%';
	if( $status === '100%' ) return null;
	$btext   = ( $profiles == 0 ) ? __( 'Start Profile Synchronization', 'wpforo' ) : __( 'Continue Synchronization', 'wpforo' );
	$url     = wp_nonce_url( admin_url( 'admin.php?page=wpforo-overview&wpfaction=synch_user_profiles' ), 'wpforo_synch_user_profiles' );
	$class   = 'wpforo-mnote notice notice-warning is-dismissible';
	$note    = __( 'This process may take a few seconds or dozens of minutes, please be patient and don\'t close this page.', 'wpforo' );
	$info    = __( 'You can permanently disable this message using this documentation', 'wpforo' );
	$button  = '<a href="' . $url . '" class="button button-primary button-large" style="font-size:14px;">' . $btext . ' &gt;&gt;</a>';
	$header  = __( 'wpForo Forum Installation | ', 'wpforo' );
	$message = __( 'Forum users\' profile data are not synchronized yet, this step is required! Please click the button below to complete installation.', 'wpforo' );
	echo '<div class="' . $class . '" style="padding:15px 20px;"><h2 style="margin:0;">' . esc_html(
			$header
		) . $status . ' </h2><p style="font-size:15px;margin:5px 0;">' . $message . '</p><p style="margin:0 0 10px 0;">' . $button . '</p><hr /><p style="margin:0;color:#dd0000;">' . $note . '</p></div>';
}

function wpforo_database_notice() {
	$url     = admin_url( 'admin.php?page=' . wpforo_prefix_slug( 'tools' ) . '&tab=tables' );
	$class   = 'wpforo-dbnote notice notice-error is-dismissible';
	$button  = '<a href="' . $url . '" class="button button-primary button-large" style="font-size:13px;">Go to Database Troubleshooter &gt;&gt;</a>';
	$header  = __( 'wpForo Database Update Problem - Action Required!', 'wpforo' );
	$message = __( 'Forum database is not updated properly. Please click the button below for further instruction.', 'wpforo' );
	echo '<div class="' . $class . '" style="padding:15px 20px;"><h2 style="margin:0;">' . esc_html(
			$header
		) . ' </h2><p style="font-size:15px;margin:5px 0;">' . $message . '</p><p style="margin:15px 0 0 0;">' . $button . '</p></div>';
}

function wpforo_cache_information() {
	$plugin_names         = [];
	$plugin_steps         = [];
	$not_excluded_plugins = WPF()->cache->cache_plugins_status();
	if( ! empty( $not_excluded_plugins ) ) {
		foreach( $not_excluded_plugins as $key => $plugin ) {
			$plugin_names[ $key ] = '&laquo;' . $plugin['name'] . '&raquo;';
			$plugin_steps[ $key ] = '<h4 style="margin: 0; font-size: 14px;">' . __( 'Exclude forum page(s) from' ) . ' ' . $plugin['name'] . ' ' . __(
					'plugin',
					'wpforo'
				) . '</h4><ol style="font-size: 14px; color: #6203a2;"><li style="margin-bottom: 4px;">' . implode( '</li><li style="margin-bottom: 4px;">', $plugin['steps'] ) . '</ol></li>';
		}
	}
	$class   = 'wpforo-cache-conflict-note notice notice-error is-dismissible';
	$note    = sprintf(
		__( 'If you have already excluded the forum page from your cache plugin please ignore and close this message using the top %s (x) button.', 'wpforo' ),
		( is_rtl() ? __( 'left', 'wpforo' ) : __( 'right', 'wpforo' ) )
	);
	$info    = __( 'Please find more information here: ', 'wpforo' ) . '<a href="https://wpforo.com/community/faq/wpforo-and-cache-plugins/" target="_blank">wpForo and Cache Plugins</a>';
	$header  = 'wpForo ' . __( ' and ', 'wpforo' ) . implode( __( ' and ', 'wpforo' ), $plugin_names ) . ' ' . __( 'conflict', 'wpforo' ) . ' - ' . __( 'Action Required!', 'wpforo' );
	$message = __(
		           'Please exclude the forum page from your cache plugin! wpForo has a built-in cache system. It does dynamic cache of all forum pages, which will be affected by your cache plugin and the forum data will not be updated on the front-end. The user login and logout actions will also be corrupted.',
		           'wpforo'
	           ) . '<br />' . implode( '<br>', $plugin_steps );

	echo '<div class="' . $class . '" style="padding:15px 20px;"><h2 style="margin:0;">' . esc_html(
			$header
		) . ' </h2><p style="font-size:15px;margin:10px 0;">' . $message . '</p><hr /><p style="margin:0;color:#dd0000; font-size:14px;">' . $note . '</p><p style="margin:0;font-size:12px;">' . $info . '</p></div>';
	echo "<script>jQuery(document).on('click', '.wpforo-cache-conflict-note .notice-dismiss', function () {jQuery.ajax({ url: ajaxurl, data: { action: 'dismiss_wpforo_cache_conflict_note' } })})</script>";
}

function wpforo_get_shortcode_pageid( $exclude = [] ) {
	$exclude = array_filter( array_map( 'wpforo_bigintval', (array) $exclude ) );
	$sql     = "SELECT `ID` FROM `" . WPF()->db->posts . "`
        WHERE `post_content` LIKE '%[wpforo]%'
        AND `post_status` LIKE 'publish'
        AND `post_type` IN('" . implode( "','", wpforo_get_blog_content_types() ) . "')";
	if( $exclude ) $sql .= " AND `ID` NOT IN(" . implode( ',', $exclude ) . ")";

	return WPF()->db->get_var( $sql );
}

function wpforo_create_forum_page() {
	$pageid = WPF()->board->get_current( 'pageid' );
	if( ! $pageid || ! WPF()->db->get_var(
			"SELECT `ID` FROM `" . WPF(
			)->db->posts . "` WHERE `ID` = '" . $pageid . "' AND ( `post_content` LIKE '%[wpforo]%' OR `post_content` LIKE '%[wpforo-index]%' ) AND `post_status` LIKE 'publish' AND `post_type` IN('" . implode(
				"','",
				wpforo_get_blog_content_types()
			) . "')"
		) ) {
		if( ! $page_id = wpforo_get_shortcode_pageid( get_option( 'page_on_front' ) ) ) {
			$wpforo_page = [
				'post_date'         => current_time( 'mysql', 1 ),
				'post_date_gmt'     => current_time( 'mysql', 1 ),
				'post_content'      => '[wpforo]',
				'post_title'        => 'Forum',
				'post_status'       => 'publish',
				'comment_status'    => 'close',
				'ping_status'       => 'close',
				'post_name'         => 'community',
				'post_modified'     => current_time( 'mysql', 1 ),
				'post_modified_gmt' => current_time( 'mysql', 1 ),
				'post_parent'       => 0,
				'menu_order'        => 0,
				'post_type'         => 'page',
			];
			$page_id     = wp_insert_post( $wpforo_page );
		}
		if( $page_id && ! is_wp_error( $page_id ) ) {
			wpforo_update_option( 'wpforo_pageid', $page_id );
		}
	}

	flush_rewrite_rules( false );
	nocache_headers();
}

function wpforo_repair_main_shortcode_page() {
	$pageid = WPF()->board->get_current( 'pageid' );
	$sql    = "SELECT `ID` FROM `" . WPF()->db->posts . "`
				WHERE `ID` = " . $pageid . "
				AND `post_content` LIKE '%[wpforo%'
				AND `post_status` LIKE 'publish'
				AND `post_type` IN('" . implode( "','", wpforo_get_blog_content_types() ) . "')";
	if( ! $pageid || ! WPF()->db->get_var( $sql ) ) {
		wpforo_create_forum_page();
	} else {
		flush_rewrite_rules( false );
		nocache_headers();
	}
}

function wpforo_import_default_board() {
	if( ! WPF()->board->get_current( 'boardid' ) && ! WPF()->board->_get_board( 0 ) ) {
		$blogname                   = get_option( 'blogname', '' );
		$_general                   = wpforo_get_option( 'wpforo_general_options', [
			'title'       => $blogname . ' ' . __( 'Forum', 'wpforo' ),
			'description' => $blogname . ' ' . __( 'Discussion Board', 'wpforo' ),
			'lang'        => 1,
		],                                               false );
		$board                      = WPF()->board->get_current();
		$board['slug']              = basename( trim( (string) wpforo_get_option( 'wpforo_permastruct', 'community', false ), '/' ) );
		$board['is_standalone']     = wpforo_get_option( 'wpforo_use_home_url', false );
		$board['excld_urls']        = array_filter( array_map( 'trim', explode( PHP_EOL, (string) wpforo_get_option( 'wpforo_excld_urls', '' ) ) ) );
		$board['settings']          = [];
		$board['settings']['title'] = $_general['title'];
		$board['settings']['desc']  = $_general['description'];
		if( $boardid = WPF()->board->add( $board ) ) {
			WPF()->board->edit( [ 'boardid' => 0 ], $boardid );
		}
	}
}

function wpforo_import_default_menus() {
	$boardid       = WPF()->board->get_current( 'boardid' );
	$menu_name     = wpforo_phrase( 'wpForo Navigation', false, 'orig' ) . ( $boardid ? ' #' . $boardid : '' );
	$menu_location = wpforo_prefix_slug( 'menu' );
	$menu_exists   = wp_get_nav_menu_object( $menu_name );
	if( ! $menu_exists ) {
		$id                = [];
		$menu_id           = wp_create_nav_menu( $menu_name );
		$id['wpforo-home'] = wp_update_nav_menu_item( $menu_id, 0, [
			'menu-item-title'     => wpforo_phrase( 'Forums', false ),
			'menu-item-classes'   => 'wpforo-home',
			'menu-item-url'       => '/%wpforo-home%/',
			'menu-item-status'    => 'publish',
			'menu-item-parent-id' => 0,
			'menu-item-position'  => 0,
		] );

        $id['wpforo-recent-activity'] = wp_update_nav_menu_item( $menu_id, 0, [
            'menu-item-title'     => wpforo_phrase( 'What\'s New', false ),
            'menu-item-classes'   => 'wpforo-whats-new',
            'menu-item-url'       => '/%wpforo-recent-activity%/',
            'menu-item-status'    => 'publish',
            'menu-item-parent-id' => 0,
            'menu-item-position'  => 0,
        ] );

        $id['wpforo-recent'] = wp_update_nav_menu_item( $menu_id, 0, [
            'menu-item-title'     => wpforo_phrase( 'Recent Posts', false ),
            'menu-item-classes'   => 'wpforo-recent',
            'menu-item-url'       => '/%wpforo-recent%/',
            'menu-item-status'    => 'publish',
            'menu-item-parent-id' => 0,
            'menu-item-position'  => 0,
        ] );

        $id['wpforo-members'] = wp_update_nav_menu_item( $menu_id, 0, [
            'menu-item-title'     => wpforo_phrase( 'Members', false ),
            'menu-item-classes'   => 'wpforo-members',
            'menu-item-url'       => '/%wpforo-members%/',
            'menu-item-status'    => 'publish',
            'menu-item-parent-id' => 0,
            'menu-item-position'  => 0,
        ] );

		$id['wpforo-profile'] = wp_update_nav_menu_item( $menu_id, 0, [
			'menu-item-title'     => wpforo_phrase( 'My Profile', false ),
			'menu-item-classes'   => 'wpforo-profile',
			'menu-item-url'       => '/%wpforo-profile-home%/',
			'menu-item-status'    => 'publish',
			'menu-item-parent-id' => 0,
			'menu-item-position'  => 0,
		] );

		if( isset( $id['wpforo-profile'] ) && $id['wpforo-profile'] ) {
			$id['wpforo-profile-account']       = wp_update_nav_menu_item( $menu_id, 0, [
				'menu-item-title'     => wpforo_phrase( 'Account', false ),
				'menu-item-classes'   => 'wpforo-profile-account',
				'menu-item-url'       => '/%wpforo-profile-account%/',
				'menu-item-status'    => 'publish',
				'menu-item-parent-id' => $id['wpforo-profile'],
				'menu-item-position'  => 1,
			] );
			$id['wpforo-profile-activity']      = wp_update_nav_menu_item( $menu_id, 0, [
				'menu-item-title'     => wpforo_phrase( 'Activity', false ),
				'menu-item-classes'   => 'wpforo-profile-activity',
				'menu-item-url'       => '/%wpforo-profile-activity%/',
				'menu-item-status'    => 'publish',
				'menu-item-parent-id' => $id['wpforo-profile'],
				'menu-item-position'  => 1,
			] );
			$id['wpforo-profile-subscriptions'] = wp_update_nav_menu_item( $menu_id, 0, [
				'menu-item-title'     => wpforo_phrase( 'Subscriptions', false ),
				'menu-item-classes'   => 'wpforo-profile-subscriptions',
				'menu-item-url'       => '/%wpforo-profile-subscriptions%/',
				'menu-item-status'    => 'publish',
				'menu-item-parent-id' => $id['wpforo-profile'],
				'menu-item-position'  => 2,
			] );
		}

		$id['wpforo-register'] = wp_update_nav_menu_item( $menu_id, 0, [
			'menu-item-title'     => wpforo_phrase( 'Register', false ),
			'menu-item-classes'   => 'wpforo-register',
			'menu-item-url'       => '/%wpforo-register%/',
			'menu-item-status'    => 'publish',
			'menu-item-parent-id' => 0,
			'menu-item-position'  => 0,
		] );

		$id['wpforo-login'] = wp_update_nav_menu_item( $menu_id, 0, [
			'menu-item-title'     => wpforo_phrase( 'Login', false ),
			'menu-item-classes'   => 'wpforo-login',
			'menu-item-url'       => '/%wpforo-login%/',
			'menu-item-status'    => 'publish',
			'menu-item-parent-id' => 0,
			'menu-item-position'  => 0,
		] );

		$id['wpforo-logout'] = wp_update_nav_menu_item( $menu_id, 0, [
			'menu-item-title'     => wpforo_phrase( 'Logout', false ),
			'menu-item-classes'   => 'wpforo-logout',
			'menu-item-url'       => '/%wpforo-logout%/',
			'menu-item-status'    => 'publish',
			'menu-item-parent-id' => 0,
			'menu-item-position'  => 0,
		] );

		if( ! has_nav_menu( $menu_location ) ) {
			$locations = get_theme_mod( 'nav_menu_locations' );
			if( empty( $locations ) ) $locations = [];
			$locations[ $menu_location ] = $menu_id;
			set_theme_mod( 'nav_menu_locations', $locations );
		}
	}
}

function wpforo_import_default_accesses() {
	$cans_n = [
		'vf'   => 0,
		'enf'  => 0,
		'ct'   => 0,
		'vt'   => 0,
		'ent'  => 0,
		'et'   => 0,
		'dt'   => 0,
		'cr'   => 0,
		'ocr'  => 0,
		'vr'   => 0,
		'er'   => 0,
		'dr'   => 0,
		'tag'  => 0,
		'eot'  => 0,
		'eor'  => 0,
		'dot'  => 0,
		'dor'  => 0,
		'sb'   => 0,
		'l'    => 0,
		'r'    => 0,
		's'    => 0,
		'au'   => 0,
		'p'    => 0,
		'op'   => 0,
		'vp'   => 0,
		'sv'   => 0,
		'osv'  => 0,
		'v'    => 0,
		'vop'  => 0,
		'vlp'  => 0,
		'a'    => 0,
		'va'   => 0,
		'at'   => 0,
		'oat'  => 0,
		'aot'  => 0,
		'cot'  => 0,
		'mt'   => 0,
		// Poll-related permissions moved to wpForo Polls plugin
	];
	$cans_r = [
		'vf'   => 1,
		'enf'  => 1,
		'ct'   => 0,
		'vt'   => 1,
		'ent'  => 1,
		'et'   => 0,
		'dt'   => 0,
		'cr'   => 0,
		'ocr'  => 0,
		'vr'   => 1,
		'er'   => 0,
		'dr'   => 0,
		'tag'  => 0,
		'eot'  => 0,
		'eor'  => 0,
		'dot'  => 0,
		'dor'  => 0,
		'sb'   => 1,
		'l'    => 0,
		'r'    => 0,
		's'    => 0,
		'au'   => 0,
		'p'    => 0,
		'op'   => 0,
		'vp'   => 0,
		'sv'   => 0,
		'osv'  => 0,
		'v'    => 0,
		'vop'  => 0,
		'vlp'  => 1,
		'a'    => 0,
		'va'   => 1,
		'at'   => 0,
		'oat'  => 0,
		'aot'  => 0,
		'cot'  => 0,
		'mt'   => 0,
		// Poll-related permissions moved to wpForo Polls plugin
	];
	$cans_s = [
		'vf'   => 1,
		'enf'  => 1,
		'ct'   => 1,
		'vt'   => 1,
		'ent'  => 1,
		'et'   => 0,
		'dt'   => 0,
		'cr'   => 1,
		'ocr'  => 1,
		'vr'   => 1,
		'er'   => 0,
		'dr'   => 0,
		'tag'  => 1,
		'eot'  => 1,
		'eor'  => 1,
		'dot'  => 1,
		'dor'  => 1,
		'sb'   => 1,
		'l'    => 1,
		'r'    => 1,
		's'    => 0,
		'au'   => 0,
		'p'    => 0,
		'op'   => 1,
		'vp'   => 0,
		'sv'   => 0,
		'osv'  => 1,
		'v'    => 1,
		'vop'  => 1,
		'vlp'  => 1,
		'a'    => 1,
		'va'   => 1,
		'at'   => 0,
		'oat'  => 1,
		'aot'  => 1,
		'cot'  => 0,
		'mt'   => 0,
		// Poll-related permissions moved to wpForo Polls plugin
	];
	$cans_m = [
		'vf'   => 1,
		'enf'  => 1,
		'ct'   => 1,
		'vt'   => 1,
		'ent'  => 1,
		'et'   => 1,
		'dt'   => 1,
		'cr'   => 1,
		'ocr'  => 1,
		'vr'   => 1,
		'er'   => 1,
		'dr'   => 1,
		'tag'  => 1,
		'eot'  => 1,
		'eor'  => 1,
		'dot'  => 1,
		'dor'  => 1,
		'sb'   => 1,
		'l'    => 1,
		'r'    => 1,
		's'    => 1,
		'au'   => 1,
		'p'    => 1,
		'op'   => 1,
		'vp'   => 1,
		'sv'   => 1,
		'osv'  => 1,
		'v'    => 1,
		'vop'  => 1,
		'vlp'  => 1,
		'a'    => 1,
		'va'   => 1,
		'at'   => 1,
		'oat'  => 1,
		'aot'  => 1,
		'cot'  => 1,
		'mt'   => 1,
		// Poll-related permissions moved to wpForo Polls plugin
	];
	$cans_a = [
		'vf'   => 1,
		'enf'  => 1,
		'ct'   => 1,
		'vt'   => 1,
		'ent'  => 1,
		'et'   => 1,
		'dt'   => 1,
		'cr'   => 1,
		'ocr'  => 1,
		'vr'   => 1,
		'er'   => 1,
		'dr'   => 1,
		'tag'  => 1,
		'eot'  => 1,
		'eor'  => 1,
		'dot'  => 1,
		'dor'  => 1,
		'sb'   => 1,
		'l'    => 1,
		'r'    => 1,
		's'    => 1,
		'au'   => 1,
		'p'    => 1,
		'op'   => 1,
		'vp'   => 1,
		'sv'   => 1,
		'osv'  => 1,
		'v'    => 1,
		'vop'  => 1,
		'vlp'  => 1,
		'a'    => 1,
		'va'   => 1,
		'at'   => 1,
		'oat'  => 1,
		'aot'  => 1,
		'cot'  => 1,
		'mt'   => 1,
		// Poll-related permissions moved to wpForo Polls plugin
	];

	//Add new Accesses in this array to add those in custom Accesses created by forum admin
	$cans_default = [
		'sb'   => 1,
		'au'   => 1,
		'p'    => 0,
		'op'   => 1,
		'vp'   => 0,
		// Poll-related permissions moved to wpForo Polls plugin
		'aot'  => 1,
		'tag'  => 1,
		'ocr'  => 0,
		'enf'  => 1,
		'ent'  => 1,
		'vop'  => 1,
		'vlp'  => 1,
	];

	$sql      = "SELECT * FROM `" . WPF()->tables->accesses . "`";
	$accesses = WPF()->db->get_results( $sql, ARRAY_A );
	if( empty( $accesses ) ) {
		$cans_n = serialize( $cans_n );
		$cans_r = serialize( $cans_r );
		$cans_s = serialize( $cans_s );
		$cans_m = serialize( $cans_m );
		$cans_a = serialize( $cans_a );

		$sql = "INSERT IGNORE INTO `" . WPF()->tables->accesses . "`
			(`access`, `title`, cans) VALUES
			('no_access', 'No access', '" . $cans_n . "'),
			('read_only', 'Read only access', '" . $cans_r . "'),
			('standard', 'Standard access', '" . $cans_s . "'),
			('moderator', 'Moderator access', '" . $cans_m . "'),
			('full', 'Full access', '" . $cans_a . "')";

		WPF()->db->query( $sql );
	} else {
		foreach( $accesses as $access ) {
			$current = unserialize( $access['cans'] );
			if( strtolower( (string) $access['access'] ) === 'no_access' ) {
				$default = $cans_n;
			} elseif( strtolower( (string) $access['access'] ) === 'read_only' ) {
				$default = $cans_r;
			} elseif( strtolower( (string) $access['access'] ) === 'standard' ) {
				$default = $cans_s;
			} elseif( strtolower( (string) $access['access'] ) === 'moderator' ) {
				$default = $cans_m;
			} elseif( strtolower( (string) $access['access'] ) === 'full' ) {
				$default = $cans_a;
			} else {
				$default = $cans_default;
			}
			if( ! empty( $default ) ) {
				$data_update = array_merge( $default, $current );
				if( ! empty( $data_update ) ) {
					$data_update = serialize( $data_update );
					WPF()->db->query( "UPDATE `" . WPF()->tables->accesses . "` SET `cans` = '" . WPF()->db->_real_escape( $data_update ) . "' WHERE `accessid` = " . intval( $access['accessid'] ) );
				}
			}
		}
	}
}

function wpforo_import_default_usergroups() {
	$cans_admin    = [
		'mf'             => 1,
		'mai'            => 1,
        'ms'             => 1,
		'mt'             => 1,
		'mp'             => 1,
		'mth'            => 1,
		'vm'             => 1,
		'aum'            => 1,
		'em'             => 1,
		'vmg'            => 1,
		'aup'            => 1,
		'vmem'           => 1,
		'view_stat'      => 1,
		'vprf'           => 1,
		'vpra'           => 1,
		'vprs'           => 1,
		'bm'             => 1,
		'dm'             => 1,
		'upc'            => 1,
		'upa'            => 1,
		'ups'            => 1,
		'va'             => 1,
		'vmu'            => 1,
		'vmm'            => 1,
		'vmt'            => 1,
		'vmct'           => 1,
		'vmr'            => 1,
		'vmw'            => 1,
		'vmsn'           => 1,
		'vmrd'           => 1,
		'vml'            => 1,
		'vmo'            => 1,
		'vms'            => 1,
		'vmam'           => 1,
		'vwpm'           => 1,
		'caa'            => 1,
		'vt_add_topic'   => 1,
        'ai_search'      => 1,
        'ai_summary'     => 1,
        'ai_translation' => 1,
        'ai_suggestion'  => 1,
	];
	$cans_moder    = [
		'mf'           => 0,
		'ms'           => 0,
        'mai'          => 0,
		'mt'           => 0,
		'mp'           => 0,
		'mth'          => 0,
		'vm'           => 0,
		'aum'          => 1,
		'em'           => 0,
		'vmg'          => 0,
		'aup'          => 1,
		'vmem'         => 1,
		'view_stat'    => 1,
		'vprf'         => 1,
		'vpra'         => 1,
		'vprs'         => 1,
		'bm'           => 1,
		'dm'           => 1,
		'upc'          => 1,
		'upa'          => 1,
		'ups'          => 1,
		'va'           => 1,
		'vmu'          => 0,
		'vmm'          => 1,
		'vmt'          => 1,
		'vmct'         => 1,
		'vmr'          => 1,
		'vmw'          => 1,
		'vmsn'         => 1,
		'vmrd'         => 1,
		'vml'          => 1,
		'vmo'          => 1,
		'vms'          => 1,
		'vmam'         => 1,
		'vwpm'         => 1,
		'caa'          => 1,
		'vt_add_topic' => 1,
        'ai_search'      => 1,
        'ai_summary'     => 1,
        'ai_translation' => 1,
        'ai_suggestion'  => 1,
	];
	$cans_reg      = [
		'mf'           => 0,
		'ms'           => 0,
        'mai'          => 0,
		'mt'           => 0,
		'mp'           => 0,
		'mth'          => 0,
		'vm'           => 0,
		'aum'          => 0,
		'em'           => 0,
		'vmg'          => 0,
		'aup'          => 1,
		'vmem'         => 1,
		'view_stat'    => 1,
		'vprf'         => 1,
		'vpra'         => 1,
		'vprs'         => 0,
		'bm'           => 0,
		'dm'           => 0,
		'upc'          => 1,
		'upa'          => 1,
		'ups'          => 1,
		'va'           => 1,
		'vmu'          => 0,
		'vmm'          => 0,
		'vmt'          => 1,
		'vmct'         => 1,
		'vmr'          => 1,
		'vmw'          => 1,
		'vmsn'         => 1,
		'vmrd'         => 1,
		'vml'          => 1,
		'vmo'          => 1,
		'vms'          => 1,
		'vmam'         => 1,
		'vwpm'         => 1,
		'caa'          => 1,
		'vt_add_topic' => 1,
        'ai_search'      => 1,
        'ai_summary'     => 1,
        'ai_translation' => 1,
        'ai_suggestion'  => 1,
	];
	$cans_guest    = [
		'mf'           => 0,
		'ms'           => 0,
        'mai'          => 0,
		'mt'           => 0,
		'mp'           => 0,
		'mth'          => 0,
		'vm'           => 0,
		'aum'          => 0,
		'em'           => 0,
		'vmg'          => 0,
		'aup'          => 0,
		'vmem'         => 1,
		'view_stat'    => 1,
		'vprf'         => 1,
		'vpra'         => 1,
		'vprs'         => 0,
		'bm'           => 0,
		'dm'           => 0,
		'upc'          => 0,
		'upa'          => 0,
		'ups'          => 0,
		'va'           => 1,
		'vmu'          => 0,
		'vmm'          => 0,
		'vmt'          => 1,
		'vmct'         => 1,
		'vmr'          => 1,
		'vmw'          => 0,
		'vmsn'         => 1,
		'vmrd'         => 1,
		'vml'          => 1,
		'vmo'          => 1,
		'vms'          => 1,
		'vmam'         => 1,
		'vwpm'         => 0,
		'caa'          => 1,
		'vt_add_topic' => 0,
        'ai_search'      => 1,
        'ai_summary'     => 1,
        'ai_translation' => 1,
        'ai_suggestion'  => 0,
	];
	$cans_customer = [
		'mf'           => 0,
		'ms'           => 0,
        'mai'          => 0,
		'mt'           => 0,
		'mp'           => 0,
		'mth'          => 0,
		'vm'           => 0,
		'aum'          => 0,
		'em'           => 0,
		'vmg'          => 0,
		'aup'          => 0,
		'vmem'         => 1,
		'view_stat'    => 1,
		'vprf'         => 1,
		'vpra'         => 1,
		'vprs'         => 0,
		'bm'           => 0,
		'dm'           => 0,
		'upc'          => 1,
		'upa'          => 1,
		'ups'          => 1,
		'va'           => 1,
		'vmu'          => 0,
		'vmm'          => 0,
		'vmt'          => 1,
		'vmct'         => 1,
		'vmr'          => 1,
		'vmw'          => 1,
		'vmsn'         => 1,
		'vmrd'         => 1,
		'vml'          => 1,
		'vmo'          => 1,
		'vms'          => 1,
		'vmam'         => 1,
		'vwpm'         => 1,
		'caa'          => 1,
		'vt_add_topic' => 1,
        'ai_search'      => 1,
        'ai_summary'     => 1,
        'ai_translation' => 1,
        'ai_suggestion'  => 1,
	];

	//Add new Cans in this array to add those in custom Usergroup created by forum admin
	$cans_defaults = [
		'mf'           => 0,
		'ms'           => 0,
        'mai'          => 0,
		'mt'           => 0,
		'mp'           => 0,
		'mth'          => 0,
		'vmem'         => 1,
		'view_stat'    => 1,
		'vprf'         => 1,
		'caa'          => 1,
		'vt_add_topic' => 1,
		'upc'          => 1,
        'ai_search'      => 1,
        'ai_summary'     => 1,
        'ai_translation' => 1,
        'ai_suggestion'  => 1,
	];

	$sql = "SELECT * FROM `" . WPF()->tables->usergroups . "`";
	if( ! $usergroups = WPF()->db->get_results( $sql, ARRAY_A ) ) {
		WPF()->usergroup->add( 'Admin', $cans_admin, '', 'administrator', 'full', '#FF3333' );
		WPF()->usergroup->add( 'Moderator', $cans_moder, '', 'editor', 'moderator', '#0066FF' );
		WPF()->usergroup->add( 'Registered', $cans_reg, '', 'subscriber', 'standard', '', 1, 1 );
		WPF()->usergroup->add( 'Guest', $cans_guest, '', '', 'read_only', '#222222', 0 );
		WPF()->usergroup->add( 'Customer', $cans_customer, '', 'customer', 'standard', '#993366', 1, 1 );
	} else {
		foreach( $usergroups as $usergroup ) {
			$current = unserialize( $usergroup['cans'] );
			if( strtolower( (string) $usergroup['name'] ) === 'admin' ) {
				$default = $cans_admin;
			} elseif( strtolower( (string) $usergroup['name'] ) === 'moderator' ) $default = $cans_moder;
			elseif( strtolower( (string) $usergroup['name'] ) === 'registered' ) $default = $cans_reg;
			elseif( strtolower( (string) $usergroup['name'] ) === 'guest' ) $default = $cans_guest;
			elseif( strtolower( (string) $usergroup['name'] ) === 'customer' ) $default = $cans_customer;
			else {
				$default = $cans_defaults;
			}
			if( ! empty( $default ) ) {
				$data_update = array_merge( $default, $current );
				if( ! empty( $data_update ) ) {
					$data_update = serialize( $data_update );
					WPF()->db->query(
						"UPDATE `" . WPF()->tables->usergroups . "` SET `cans` = '" . WPF()->db->_real_escape( $data_update ) . "' WHERE `groupid` = " . intval( $usergroup['groupid'] )
					);
				}
			}
		}
	}
}

function wpforo_import_default_forums() {
	$sql   = "SELECT COUNT(*) FROM `" . WPF()->tables->forums . "`";
	$count = WPF()->db->get_var( $sql );
	if( ! $count ) {
		if( $parentid = WPF()->forum->add(
			[ 'title' => __( 'Main Category', 'wpforo' ), 'description' => __( 'This is a simple category / section', 'wpforo' ), 'layout' => 4, 'icon' => 'fas fa-comments' ],
			false
		) ) {
			WPF()->forum->add(
				[ 'title' => __( 'Main Forum', 'wpforo' ), 'description' => __( 'This is a simple parent forum', 'wpforo' ), 'parentid' => $parentid, 'layout' => 4, 'icon' => 'fas fa-comments' ],
				false
			);
		}
	}
}

function wpforo_fix_wp_permalink_structure() {
	$permalink_structure = get_option( 'permalink_structure' );
	if( ! $permalink_structure ) {
		global $wp_rewrite;
		$wp_rewrite->set_permalink_structure( '/%postname%/' );
	}
}

function wpforo_fix_installed_options() {
	/**
	 * in the update process, using old features settings set the right profile setting for the new option
	 */
	if( $features = wpforo_get_option( 'features', [], false ) ) {
		if( ! (int) wpfval( $features, 'profile' ) ) {
			if( (int) wpfval( $features, 'bp_profile' ) && class_exists( 'BP_Component' ) ) {
				$features['profile'] = 3;
			} elseif( (int) wpfval( $features, 'um_profile' ) && function_exists( 'UM' ) ) {
				$features['profile'] = 4;
			} elseif( (int) wpfval( $features, 'comment-author-link' ) ) {
				$features['profile'] = 2;
			} else {
				$features['profile'] = 1;
			}
			wpforo_update_option( 'features', array_map( 'intval', $features ) );
		}
	}

	#################################################################
	// CHECK Addon Notice /////////////////////////////////////////
	$lastHash = get_option( 'wpforo_addon_note_dismissed' );
	$first    = get_option( 'wpforo_addon_note_first' );
	if( $lastHash && $first === 'true' ) {
		update_option( 'wpforo_addon_note_first', 'false' );
	}

	#################################################################
	// AVOID PLUGIN CONFLICTS ///////////////////////////////////////
	/* Autoptimize *************************************************/
	$autopt = get_option( 'autoptimize_js_exclude' );
	if( $autopt && strpos( (string) $autopt, 'wp-includes/js/tinymce' ) === false ) {
		$autopt = $autopt . ', wp-includes/js/tinymce';
		update_option( 'autoptimize_js_exclude', $autopt );
		if( class_exists( 'autoptimizeCache' ) && is_callable( [ 'autoptimizeCache', 'clearall' ] ) ) {
			autoptimizeCache::clearall();
		}
	}

	#################################################################
	// Adding #wpforo to custom css /////////////////////////////////
	if( $style_options = wpforo_get_option( 'style_options', [], false ) ) {
		$custom_css = wpfval( $style_options, 'custom_css' );
		if( $custom_css && strpos( (string) $custom_css, '#wpforo #wpforo-wrap' ) === false ) {
			$style_options['custom_css'] = str_replace( '#wpforo-wrap', '#wpforo #wpforo-wrap', $style_options['custom_css'] );
			wpforo_update_option( 'style_options', $style_options );
		}
	}
}

function wpforo_update_theme_options() {
	if( $current_theme = wpforo_get_option( 'theme_options_' . WPF()->tpl->theme, [], false ) ) {
		$theme = WPF()->tpl->find_theme( '2026' );
		if( wpfval( $theme, 'layouts' ) ) {
			$current_theme['layouts'] = $theme['layouts'];
			$theme                    = wpforo_deep_merge( $theme, $current_theme );
			wpforo_update_option( 'theme_options_' . WPF()->tpl->theme, $theme );
		}
	}
}

function wpforo_clean_up() {
	WPF()->db->delete( WPF()->tables->topics, [ 'first_postid' => 0 ], [ '%d' ] );
}

// wpforo  database checker fixer tools
function wpforo_update_db() {
	$problems = wpforo_database_check();
	if( ! empty( $problems ) ) {
		$SQL = wpforo_database_fixer( $problems );
		if( wpfval( $SQL, 'fields' ) ) {
			foreach( $SQL['fields'] as $query ) WPF()->db->query( $query );
		}
		if( wpfval( $SQL, 'keys' ) ) {
			foreach( $SQL['keys'] as $query ) WPF()->db->query( $query );
		}
		if( wpfval( $SQL, 'tables' ) ) {
			foreach( $SQL['tables'] as $query ) {
				if( false === WPF()->db->query( $query ) ) {
					WPF()->db->query( preg_replace( '#\)[\r\n\t\s]*ENGINE.*$#isu', ')', $query ) );
				}
			}
		}
		if( wpfval( $SQL, 'data' ) ) {
			foreach( $SQL['data'] as $query ) {
				WPF()->db->query( $query );
			}
		}
	}
	wpforo_update_option( 'version_db', WPFORO_VERSION );
}

/**
 * @param array $args
 *
 * @return bool|string|null
 */
function wpforo_db_check( $args = [] ) {
	$key = [ 'wpforo_db_check', $args ];
	if( WPF()->ram_cache->exists( $key ) ) return WPF()->ram_cache->get( $key );

	global $wpdb;

	$col   = esc_sql( trim( (string) wpfval( $args, 'col' ) ) );
	$table = esc_sql( trim( (string) wpfval( $args, 'table' ) ) );

	$result = null;
	switch( trim( (string) wpfval( $args, 'check' ) ) ) {
		case 'table_exists':
			$result = (bool) $wpdb->get_var( "SHOW TABLES LIKE '$table'" );
		break;
		case 'col_exists':
			$result = (bool) $wpdb->get_var( "SHOW COLUMNS FROM `$table` LIKE '$col'" );
		break;
		case 'key_exists':
			$result = (bool) $wpdb->get_var( "SHOW KEYS FROM `$table` WHERE `Key_name` = '$col'" );
		break;
		case 'default_value':
			$c      = (array) $wpdb->get_row( "SHOW COLUMNS FROM `$table` LIKE '$col'", ARRAY_A );
			$result = wpfval( $c, 'Default' );
		break;
		case 'col_type':
			$c      = (array) $wpdb->get_row( "SHOW COLUMNS FROM `$table` LIKE '$col'", ARRAY_A );
			$result = wpfval( $c, 'Type' );
		break;
	}

	WPF()->ram_cache->set( $key, $result );

	return $result;
}

function wpforo_database_check() {
	$_tables      = [];
	$_table_diffs = [];
	require_once( WPFORO_DIR . '/includes/install-sql.php' );
	$wpforo_sql = wpforo_get_install_sqls();
	if( ! empty( $wpforo_sql ) ) {
		foreach( $wpforo_sql as $sql ) {
			if( preg_match( '|EXISTS \`([^\(]+)\`\s*\((.+)(PRIMARY.+)\)\s*ENGINE|is', $sql, $table ) ) {
				if( wpfval( $table, 1 ) ) {
					if( wpfval( $table, 2 ) ) {
						if( preg_match_all( '|\`([^\`]+)\`|is', $table[2], $fields, PREG_SET_ORDER ) ) {
							foreach( $fields as $field ) {
								if( wpfval( $field, 1 ) ) $_tables[ $table[1] ]['fields'][] = $field[1];
							}
						}
					}
					if( wpfval( $table, 3 ) ) {
						if( preg_match( '|PRIMARY KEY \(\`([^\`]+)\`\)|is', $table[3], $primary_key ) ) {
							$_tables[ $table[1] ]['keys'][] = $primary_key[1];
						}
						if( preg_match_all( '|KEY \`([^\`]+)\`|is', $table[3], $keys, PREG_SET_ORDER ) ) {
							foreach( $keys as $key ) {
								if( wpfval( $key, 1 ) ) $_tables[ $table[1] ]['keys'][] = $key[1];
							}
						}
					}
				}
			}
		}
		if( ! empty( $_tables ) ) {
			foreach( $_tables as $_name => $_structure ) {
				$_table_fields = [];
				$_table_keys   = [];
				$_table_exists = WPF()->db->get_var( "SHOW TABLES LIKE '" . esc_sql( $_name ) . "'" );
				if( $_table_exists ) {
					//Problems - Missing Field
					if( wpfval( $_structure, 'fields' ) ) {
						$_fields = WPF()->db->get_results( "SHOW FULL COLUMNS FROM " . esc_sql( $_name ), ARRAY_A );
						foreach( $_fields as $_field ) $_table_fields[] = $_field['Field'];
						$_count_orig = count( $_structure['fields'] );
						$_count_curr = count( $_table_fields );
						if( $_count_curr < $_count_orig ) {
							$diff = array_diff( $_structure['fields'], $_table_fields );
							if( ! empty( $diff ) ) $_table_diffs[ $_name ]['fields'][ $_name ] = $diff;
						}
					}
					//Problems - Missing Key
					if( wpfval( $_structure, 'keys' ) ) {
						$_keys = WPF()->db->get_results( "SHOW KEYS FROM " . esc_sql( $_name ), ARRAY_A );
						foreach( $_keys as $_key ) {
							if( strpos( (string) $_key['Key_name'], 'PRIMARY' ) !== false ) {
								$_table_keys[] = $_key['Column_name'];
							} else {
								$_table_keys[] = $_key['Key_name'];
							}
						}
						$_table_keys = array_unique( $_table_keys );
						$_table_keys = array_values( $_table_keys );
						$_count_orig = count( $_structure['keys'] );
						$_count_curr = count( $_table_keys );
						if( $_count_curr < $_count_orig ) {
							$diff_keys = array_diff( $_structure['keys'], $_table_keys );
							if( ! empty( $diff_keys ) ) $_table_diffs[ $_name ]['keys'][ $_name ] = $diff_keys;
						}
					}
				} else {
					//Problems - Missing Table
					$_table_diffs[ $_name ]['exists'] = 'no';
				}
			}
		}
	}

	$first_board = WPF()->db->get_row( "SELECT `boardid` FROM `" . WPF()->tables->boards . "` WHERE `boardid` = 0", ARRAY_A );
	if( empty( $first_board ) ) {
		$_table_diffs['data']['default_board'] = 'no';
	}

	return $_table_diffs;
}

function wpforo_database_parse() {
	$_tables      = [];
	$_table_diffs = [];
	require_once( WPFORO_DIR . '/includes/install-sql.php' );
	$wpforo_sql = wpforo_get_install_sqls();
	if( ! empty( $wpforo_sql ) ) {
		foreach( $wpforo_sql as $sql ) {
			if( preg_match( '|EXISTS \`([^\(]+)\`\s*\((.+)(PRIMARY.+)\)\s*ENGINE|is', $sql, $table ) ) {
				if( wpfval( $table, 1 ) ) {
					if( wpfval( $table, 2 ) ) {
						$_tables[ $table[1] ]['fields'] = array_map( 'trim', explode( ',', $table[2] ) );
					}
					if( wpfval( $table, 3 ) ) {
						$_tables[ $table[1] ]['keys'] = array_map( 'trim', explode( PHP_EOL, $table[3] ) );
					}
				}
			}
		}
	}

	return $_tables;
}

function wpforo_database_fixer( $problems ) {
	$SQL = [];
	if( ! empty( $problems ) ) {
		require_once( WPFORO_DIR . '/includes/install-sql.php' );
		$table_structure = wpforo_database_parse();
		if( ! empty( $table_structure ) ) {
			foreach( $problems as $table_name => $problem ) {
				if( wpfval( $problem, 'fields' ) ) {
					foreach( $problem['fields'] as $problem_fields ) {
						if( ! empty( $problem_fields ) ) {
							foreach( $problem_fields as $problem_field ) {
								if( wpfval( $table_structure, $table_name, 'fields' ) ) {
									foreach( $table_structure[ $table_name ]['fields'] as $field_sql ) {
										if( strpos( (string) $field_sql, '`' . $problem_field . '`' ) !== false ) {
											$SQL['fields'][] = 'ALTER TABLE `' . $table_name . '` ADD ' . $field_sql . ';';
										}
									}
								}
							}
						}
					}
				}
				if( wpfval( $problem, 'keys' ) ) {
					foreach( $problem['keys'] as $problem_keys ) {
						if( ! empty( $problem_keys ) ) {
							foreach( $problem_keys as $problem_key ) {
								if( wpfval( $table_structure, $table_name, 'keys' ) ) {
									foreach( $table_structure[ $table_name ]['keys'] as $key_sql ) {
										if( preg_match( '|KEY \`' . $problem_key . '\`|is', (string) $key_sql ) ) {
											$SQL['keys'][] = 'ALTER TABLE `' . $table_name . '` ADD ' . trim( (string) $key_sql, ',' ) . ';';
										}
									}
								}
							}
						}
					}
				}
				if( wpfval( $problem, 'exists' ) ) {
					$wpforo_sql = wpforo_get_install_sqls();
					if( wpfval( $wpforo_sql, $table_name ) ) {
						$SQL['tables'][] = preg_replace( '|\t+|', ' ', $wpforo_sql[ $table_name ] );
					}
				}
			}
		}
		if( wpfval( $problems, 'data' ) ) {
			if( wpfval( $problems, 'data', 'default_board' ) ) {
				// Missing default board (ID:0)
				$board                      = [];
				$blogname                   = get_option( 'blogname', '' );
				$_general                   = wpforo_get_option( 'wpforo_general_options', [
					'title'       => $blogname . ' ' . __( 'Forum', 'wpforo' ),
					'description' => $blogname . ' ' . __( 'Discussion Board', 'wpforo' ),
				],                                               false );
				$board['title']             = ( wpfval( $_general, 'title' ) ) ?: 'Forum';
				$board['settings']['title'] = ( wpfval( $_general, 'title' ) ) ?: 'Forum';
				$board['settings']['desc']  = ( wpfval( $_general, 'description' ) ) ?: 'Discussion Board';
				$settings                   = wp_json_encode( $board['settings'] );
				WPF()->db->query( "UPDATE `" . WPF()->tables->boards . "` SET `slug` = CONCAT('community-', `boardid`) WHERE `slug` = 'community' AND `boardid` != 0" );
				$slug                         = basename( trim( (string) wpforo_get_option( 'wpforo_permastruct', 'community', false ), '/' ) );
				$board['slug']                = ( $slug ) ?: 'community';
				$board['locale']              = wpforo_get_site_default_locale();
				$board['pageid']              = wpforo_get_option( 'wpforo_pageid', 0 );
				$all_modules                  = array_map( '__return_true', wpforo_get_modules_info() );
				$all_addons                   = array_map( '__return_true', wpforo_get_addons_info() );
				$modules                      = array_merge( $all_modules, $all_addons );
				$board['modules']             = wp_json_encode( array_map( function( $a ) { return (bool) intval( $a ); }, $modules ) );
				$SQL['data']['pre_board']     = "SET sql_mode='NO_AUTO_VALUE_ON_ZERO';";
				$SQL['data']['default_board'] = "INSERT INTO `" . WPF()->tables->boards . "` (`boardid`, `title`, `slug`, `pageid`, `modules`, `locale`, `is_standalone`, `excld_urls`, `status`, `settings`)
                VALUES(0, '" . esc_sql( $board['title'] ) . "', '" . esc_sql( $board['slug'] ) . "', " . intval( $board['pageid'] ) . ",
                    '" . esc_sql( $board['modules'] ) . "',
                        '" . esc_sql( $board['locale'] ) . "', 0, '[]', 1, '" . esc_sql( $settings ) . "');";
			}
			//Other data checking here...
		}
	}

	return $SQL;
}

function wpforo_add_unique_key( $table, $primary_key, $unique_key_name = '', $unique_fields = '' ) {

	$table               = esc_sql( trim( (string) $table ) );
	$primary_key         = esc_sql( trim( (string) $primary_key ) );
	$unique_fields       = esc_sql( trim( (string) $unique_fields, ',' ) );
	$unique_fields_clean = preg_replace( '|\([^()]+\)|', '', (string) $unique_fields );
	$remove_rows         = '';
	$sql                 = "SELECT GROUP_CONCAT(`$primary_key`) duplicated_row_ids,
                COUNT(*) duplication_count FROM
                    `$table` GROUP BY $unique_fields_clean HAVING  duplication_count > 1";

	$rows = WPF()->db->get_results( $sql, ARRAY_A );
	if( ! empty( $rows ) ) {
		foreach( $rows as $row ) {
			$ids         = explode( ',', $row['duplicated_row_ids'] );
			$ids         = array_reverse( $ids );
			$ids         = array_slice( $ids, 1 );
			$remove_rows .= trim( implode( ',', $ids ), ',' ) . ',';
		}
		$remove_rows = esc_sql( trim( $remove_rows, ',' ) );
		if( $remove_rows ) {
			WPF()->db->query( "DELETE FROM `$table` WHERE `$primary_key` IN($remove_rows)" );
		}
	}
	$sql = "ALTER TABLE `$table` ADD UNIQUE KEY `$unique_key_name`( $unique_fields )";
	WPF()->db->query( $sql );
}

/**
 * Add What’s New menu item on plugin update (2.x to 3.x migration only)
 * Adds "What’s New" right after the first [Forums] menu item.
 * This only runs once during the 2.x to 3.x update.
 *
 * @since 3.0.0
 */
function wpforo_migrate_recent_activity_menu() {
	// Only run this migration once (2.x to 3.x update)
	if( get_option( 'wpforo_recent_activity_menu_migrated' ) ) {
		return;
	}

	// Get all boards to migrate menus for each
	$boards = [];
	if( isset( WPF()->board ) && method_exists( WPF()->board, 'get_boards' ) ) {
		$boards = WPF()->board->get_boards();
	}

	// If no boards found or multi-board not initialized, just migrate default board
	if( empty( $boards ) ) {
		$boards = [ [ 'boardid' => 0 ] ];
	}

	foreach( $boards as $board ) {
		$boardid   = intval( wpfval( $board, 'boardid' ) );
		$menu_name = wpforo_phrase( 'wpForo Navigation', false, 'orig' ) . ( $boardid ? ' #' . $boardid : '' );
		$menu_obj  = wp_get_nav_menu_object( $menu_name );

		if( ! $menu_obj ) {
			continue; // Skip boards without a menu (fresh install will create menu with What's New)
		}

		$menu_id    = $menu_obj->term_id;
		$menu_items = wp_get_nav_menu_items( $menu_id );

		if( empty( $menu_items ) ) {
			continue;
		}

		// Check if "What's New" already exists (check both old and new CSS class names)
		$has_whats_new = false;
		foreach( $menu_items as $item ) {
			if( is_array( $item->classes ) && ( in_array( 'wpforo-whats-new', $item->classes ) || in_array( 'wpforo-recent-activity', $item->classes ) ) ) {
				$has_whats_new = true;
				break;
			}
		}

		if( $has_whats_new ) {
			continue; // What's New already exists for this board, skip
		}

		// Find the first [Forums] menu item (wpforo-home) to get its position
		$forums_position = 1;
		foreach( $menu_items as $item ) {
			if( is_array( $item->classes ) && in_array( 'wpforo-home', $item->classes ) ) {
				$forums_position = $item->menu_order;
				break;
			}
		}

		// Shift all menu items after [Forums] by 1 position
		foreach( $menu_items as $item ) {
			if( $item->menu_order > $forums_position ) {
				wp_update_nav_menu_item( $menu_id, $item->db_id, [
					'menu-item-title'     => $item->title,
					'menu-item-classes'   => implode( ' ', (array) $item->classes ),
					'menu-item-url'       => $item->url,
					'menu-item-status'    => 'publish',
					'menu-item-parent-id' => $item->menu_item_parent,
					'menu-item-position'  => $item->menu_order + 1,
				] );
			}
		}

		// Add "What's New" right after [Forums]
		wp_update_nav_menu_item( $menu_id, 0, [
			'menu-item-title'     => wpforo_phrase( 'What\'s New', false ),
			'menu-item-classes'   => 'wpforo-whats-new',
			'menu-item-url'       => '/%wpforo-recent-activity%/',
			'menu-item-status'    => 'publish',
			'menu-item-parent-id' => 0,
			'menu-item-position'  => $forums_position + 1,
		] );
	}

	// Mark migration as complete - won't run again on future updates
	update_option( 'wpforo_recent_activity_menu_migrated', 1 );
}

/**
 * Migrate theme styles from 2022 to 2026 theme on plugin update (2.x to 3.x migration)
 * Preserves user's custom colors and CSS when the default theme changes from 2022 to 2026.
 * Supports multi-board installations.
 * This only runs once during the 2.x to 3.x update.
 *
 * @since 3.0.0
 */
function wpforo_migrate_theme_styles() {
	// Only run this migration once
	if( get_option( 'wpforo_theme_styles_migrated' ) ) {
		return;
	}

	// Get all boards to migrate styles for each
	$boards = [];
	if( isset( WPF()->board ) && method_exists( WPF()->board, 'get_boards' ) ) {
		$boards = WPF()->board->get_boards();
	}

	// If no boards found or multi-board not initialized, just migrate default board
	if( empty( $boards ) ) {
		$boards = [ [ 'boardid' => 0 ] ];
	}

	foreach( $boards as $board ) {
		$boardid = intval( wpfval( $board, 'boardid' ) );
		$prefix  = WPF()->generate_prefix( $boardid );

		// Get the old 2022 theme styles for this board
		$styles_2022 = get_option( $prefix . 'styles_2022', [] );

		// If user had 2022 styles, copy them to 2026 theme
		if( ! empty( $styles_2022 ) && ! get_option( $prefix . 'styles_2026', [] ) ) {
			update_option( $prefix . 'styles_2026', $styles_2022 );
		}
	}

	// Mark migration as complete
	update_option( 'wpforo_theme_styles_migrated', 1 );
}

/**
 * Migrate AI quality settings to optimized defaults for better performance.
 * Changes quality tiers from 'advanced' to 'fast'/'balanced' to reduce API timeouts.
 * This only runs once during plugin update.
 *
 * New defaults (3.0.3+):
 * - search_quality: 'fast' (was 'balanced')
 * - search_enhance_quality: 'balanced' (was 'advanced')
 * - translation_quality: 'fast' (was 'advanced')
 * - topic_summary_quality: 'balanced' (was 'advanced')
 * - moderation_spam_quality: 'balanced' (was 'advanced')
 * - chatbot_quality: 'balanced' (was 'fast')
 *
 * @since 3.0.3
 */
function wpforo_migrate_ai_quality_defaults() {
	// Only run this migration once
	if( get_option( 'wpforo_ai_quality_defaults_migrated' ) ) {
		return;
	}

	// Define quality settings to update (old_value => new_value)
	$quality_changes = [
		'search_quality'         => 'fast',
		'search_enhance_quality' => 'balanced',
		'translation_quality'    => 'fast',
		'topic_summary_quality'  => 'balanced',
		'moderation_spam_quality' => 'balanced',
		'chatbot_quality'        => 'balanced',
	];

	// Get all board IDs (including default board 0)
	$boardids = [ 0 ];
	if( class_exists( 'wpforo\\classes\\Board' ) && method_exists( WPF()->board, 'get_active_boardids' ) ) {
		$boardids = array_unique( array_merge( $boardids, (array) WPF()->board->get_active_boardids() ) );
	}

	foreach( $boardids as $boardid ) {
		// Build option name: wpforo_ai (board 0) or wpforo_{boardid}_ai (other boards)
		$option_name = 'wpforo_' . ( $boardid ? $boardid . '_' : '' ) . 'ai';
		$ai_settings = get_option( $option_name, [] );

		// Skip if no settings saved (new install, will use new defaults)
		if( empty( $ai_settings ) ) {
			continue;
		}

		// Update only the quality settings
		$updated = false;
		foreach( $quality_changes as $key => $new_value ) {
			// Only update if the key exists (user has this setting saved)
			if( isset( $ai_settings[ $key ] ) ) {
				$ai_settings[ $key ] = $new_value;
				$updated = true;
			}
		}

		// Save updated settings
		if( $updated ) {
			update_option( $option_name, $ai_settings );
		}
	}

	// Mark migration as complete
	update_option( 'wpforo_ai_quality_defaults_migrated', 1 );
}

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