<?php

/**
 * The admin-panel specific functionality of the plugin.
 *
 *
 * @since      1.0.0
 * @package    LiteSpeed
 * @subpackage LiteSpeed/admin
 * @author     LiteSpeed Technologies <[email protected]>
 */

namespace LiteSpeed;

defined('WPINC') || exit();

class Admin_Display extends Base
{
	const LOG_TAG = '👮‍♀️';

	const NOTICE_BLUE = 'notice notice-info';
	const NOTICE_GREEN = 'notice notice-success';
	const NOTICE_RED = 'notice notice-error';
	const NOTICE_YELLOW = 'notice notice-warning';
	const DB_MSG = 'messages';
	const DB_MSG_PIN = 'msg_pin';

	const PURGEBY_CAT = '0';
	const PURGEBY_PID = '1';
	const PURGEBY_TAG = '2';
	const PURGEBY_URL = '3';

	const PURGEBYOPT_SELECT = 'purgeby';
	const PURGEBYOPT_LIST = 'purgebylist';

	const DB_DISMISS_MSG = 'dismiss';
	const RULECONFLICT_ON = 'ExpiresDefault_1';
	const RULECONFLICT_DISMISSED = 'ExpiresDefault_0';

	protected $messages = array();
	protected $default_settings = array();
	protected $_is_network_admin = false;
	protected $_is_multisite = false;

	private $_btn_i = 0;

	/**
	 * Initialize the class and set its properties.
	 *
	 * @since    1.0.7
	 */
	public function __construct()
	{
		// main css
		add_action('admin_enqueue_scripts', array($this, 'enqueue_style'));
		// Main js
		add_action('admin_enqueue_scripts', array($this, 'enqueue_scripts'));

		$this->_is_network_admin = is_network_admin();
		$this->_is_multisite = is_multisite();

		// Quick access menu
		if (is_multisite() && $this->_is_network_admin) {
			$manage = 'manage_network_options';
		} else {
			$manage = 'manage_options';
		}
		if (current_user_can($manage)) {
			if (!defined('LITESPEED_DISABLE_ALL')) {
				add_action('wp_before_admin_bar_render', array(GUI::cls(), 'backend_shortcut'));
			}

			// `admin_notices` is after `admin_enqueue_scripts`
			// @see wp-admin/admin-header.php
			add_action($this->_is_network_admin ? 'network_admin_notices' : 'admin_notices', array($this, 'display_messages'));
		}

		/**
		 * In case this is called outside the admin page
		 * @see  https://codex.wordpress.org/Function_Reference/is_plugin_active_for_network
		 * @since  2.0
		 */
		if (!function_exists('is_plugin_active_for_network')) {
			require_once ABSPATH . '/wp-admin/includes/plugin.php';
		}

		// add menus ( Also check for mu-plugins)
		if ($this->_is_network_admin && (is_plugin_active_for_network(LSCWP_BASENAME) || defined('LSCWP_MU_PLUGIN'))) {
			add_action('network_admin_menu', array($this, 'register_admin_menu'));
		} else {
			add_action('admin_menu', array($this, 'register_admin_menu'));
		}

		$this->cls('Metabox')->register_settings();
	}

	/**
	 * Show the title of one line
	 *
	 * @since  3.0
	 * @access public
	 */
	public function title($id)
	{
		echo Lang::title($id);
	}

	/**
	 * Register the admin menu display.
	 *
	 * @since    1.0.0
	 * @access public
	 */
	public function register_admin_menu()
	{
		$capability = $this->_is_network_admin ? 'manage_network_options' : 'manage_options';
		if (current_user_can($capability)) {
			// root menu
			add_menu_page('LiteSpeed Cache', 'LiteSpeed Cache', 'manage_options', 'litespeed');

			// sub menus
			$this->_add_submenu(__('Dashboard', 'litespeed-cache'), 'litespeed', 'show_menu_dash');

			!$this->_is_network_admin && $this->_add_submenu(__('Presets', 'litespeed-cache'), 'litespeed-presets', 'show_menu_presets');

			$this->_add_submenu(__('General', 'litespeed-cache'), 'litespeed-general', 'show_menu_general');

			$this->_add_submenu(__('Cache', 'litespeed-cache'), 'litespeed-cache', 'show_menu_cache');

			!$this->_is_network_admin && $this->_add_submenu(__('CDN', 'litespeed-cache'), 'litespeed-cdn', 'show_menu_cdn');

			$this->_add_submenu(__('Image Optimization', 'litespeed-cache'), 'litespeed-img_optm', 'show_img_optm');

			!$this->_is_network_admin && $this->_add_submenu(__('Page Optimization', 'litespeed-cache'), 'litespeed-page_optm', 'show_page_optm');

			$this->_add_submenu(__('Database', 'litespeed-cache'), 'litespeed-db_optm', 'show_db_optm');

			!$this->_is_network_admin && $this->_add_submenu(__('Crawler', 'litespeed-cache'), 'litespeed-crawler', 'show_crawler');

			$this->_add_submenu(__('Toolbox', 'litespeed-cache'), 'litespeed-toolbox', 'show_toolbox');

			// sub menus under options
			add_options_page('LiteSpeed Cache', 'LiteSpeed Cache', $capability, 'litespeed-cache-options', array($this, 'show_menu_cache'));
		}
	}

	/**
	 * Helper function to set up a submenu page.
	 *
	 * @since 1.0.4
	 * @access private
	 * @param string $menu_title The title that appears on the menu.
	 * @param string $menu_slug The slug of the page.
	 * @param string $callback The callback to call if selected.
	 */
	private function _add_submenu($menu_title, $menu_slug, $callback)
	{
		add_submenu_page('litespeed', $menu_title, $menu_title, 'manage_options', $menu_slug, array($this, $callback));
	}

	/**
	 * Register the stylesheets for the admin area.
	 *
	 * @since    1.0.14
	 * @access public
	 */
	public function enqueue_style()
	{
		wp_enqueue_style(Core::PLUGIN_NAME, LSWCP_PLUGIN_URL . 'assets/css/litespeed.css', array(), Core::VER, 'all');
	}

	/**
	 * Register the JavaScript for the admin area.
	 *
	 * @since    1.0.0
	 * @access public
	 */
	public function enqueue_scripts()
	{
		wp_register_script(Core::PLUGIN_NAME, LSWCP_PLUGIN_URL . 'assets/js/litespeed-cache-admin.js', array(), Core::VER, false);

		$localize_data = array();
		if (GUI::has_whm_msg()) {
			$ajax_url_dismiss_whm = Utility::build_url(Core::ACTION_DISMISS, GUI::TYPE_DISMISS_WHM, true);
			$localize_data['ajax_url_dismiss_whm'] = $ajax_url_dismiss_whm;
		}

		if (GUI::has_msg_ruleconflict()) {
			$ajax_url = Utility::build_url(Core::ACTION_DISMISS, GUI::TYPE_DISMISS_EXPIRESDEFAULT, true);
			$localize_data['ajax_url_dismiss_ruleconflict'] = $ajax_url;
		}

		$promo_tag = GUI::cls()->show_promo(true);
		if ($promo_tag) {
			$ajax_url_promo = Utility::build_url(Core::ACTION_DISMISS, GUI::TYPE_DISMISS_PROMO, true, null, array('promo_tag' => $promo_tag));
			$localize_data['ajax_url_promo'] = $ajax_url_promo;
		}

		// Injection to LiteSpeed pages
		global $pagenow;
		if ($pagenow == 'admin.php' && !empty($_GET['page']) && (strpos($_GET['page'], 'litespeed-') === 0 || $_GET['page'] == 'litespeed')) {
			// Admin footer
			add_filter('admin_footer_text', array($this, 'admin_footer_text'), 1);

			if ($_GET['page'] == 'litespeed-crawler' || $_GET['page'] == 'litespeed-cdn') {
				// Babel JS type correction
				add_filter('script_loader_tag', array($this, 'babel_type'), 10, 3);

				wp_enqueue_script(Core::PLUGIN_NAME . '-lib-react', LSWCP_PLUGIN_URL . 'assets/js/react.min.js', array(), Core::VER, false);
				wp_enqueue_script(Core::PLUGIN_NAME . '-lib-babel', LSWCP_PLUGIN_URL . 'assets/js/babel.min.js', array(), Core::VER, false);
			}

			// Crawler Cookie Simulation
			if ($_GET['page'] == 'litespeed-crawler') {
				wp_enqueue_script(Core::PLUGIN_NAME . '-crawler', LSWCP_PLUGIN_URL . 'assets/js/component.crawler.js', array(), Core::VER, false);
				$localize_data['lang'] = array();
				$localize_data['lang']['cookie_name'] = __('Cookie Name', 'litespeed-cache');
				$localize_data['lang']['cookie_value'] = __('Cookie Values', 'litespeed-cache');
				$localize_data['lang']['one_per_line'] = Doc::one_per_line(true);
				$localize_data['lang']['remove_cookie_simulation'] = __('Remove cookie simulation', 'litespeed-cache');
				$localize_data['lang']['add_cookie_simulation_row'] = __('Add new cookie to simulate', 'litespeed-cache');
				empty($localize_data['ids']) && ($localize_data['ids'] = array());
				$localize_data['ids']['crawler_cookies'] = self::O_CRAWLER_COOKIES;
			}

			// CDN mapping
			if ($_GET['page'] == 'litespeed-cdn') {
				$home_url = home_url('/');
				$parsed = parse_url($home_url);
				$home_url = str_replace($parsed['scheme'] . ':', '', $home_url);
				$cdn_url = 'https://cdn.' . substr($home_url, 2);

				wp_enqueue_script(Core::PLUGIN_NAME . '-cdn', LSWCP_PLUGIN_URL . 'assets/js/component.cdn.js', array(), Core::VER, false);
				$localize_data['lang'] = array();
				$localize_data['lang']['cdn_mapping_url'] = Lang::title(self::CDN_MAPPING_URL);
				$localize_data['lang']['cdn_mapping_inc_img'] = Lang::title(self::CDN_MAPPING_INC_IMG);
				$localize_data['lang']['cdn_mapping_inc_css'] = Lang::title(self::CDN_MAPPING_INC_CSS);
				$localize_data['lang']['cdn_mapping_inc_js'] = Lang::title(self::CDN_MAPPING_INC_JS);
				$localize_data['lang']['cdn_mapping_filetype'] = Lang::title(self::CDN_MAPPING_FILETYPE);
				$localize_data['lang']['cdn_mapping_url_desc'] = sprintf(__('CDN URL to be used. For example, %s', 'litespeed-cache'), '<code>' . $cdn_url . '</code>');
				$localize_data['lang']['one_per_line'] = Doc::one_per_line(true);
				$localize_data['lang']['cdn_mapping_remove'] = __('Remove CDN URL', 'litespeed-cache');
				$localize_data['lang']['add_cdn_mapping_row'] = __('Add new CDN URL', 'litespeed-cache');
				$localize_data['lang']['on'] = __('ON', 'litespeed-cache');
				$localize_data['lang']['off'] = __('OFF', 'litespeed-cache');
				empty($localize_data['ids']) && ($localize_data['ids'] = array());
				$localize_data['ids']['cdn_mapping'] = self::O_CDN_MAPPING;
			}

			// If on Server IP setting page, append getIP link
			if ($_GET['page'] == 'litespeed-general') {
				$localize_data['ajax_url_getIP'] = function_exists('get_rest_url') ? get_rest_url(null, 'litespeed/v1/tool/check_ip') : '/';
				$localize_data['nonce'] = wp_create_nonce('wp_rest');
			}

			// Activate or deactivate a specific crawler
			if ($_GET['page'] == 'litespeed-crawler') {
				$localize_data['ajax_url_crawler_switch'] = function_exists('get_rest_url') ? get_rest_url(null, 'litespeed/v1/toggle_crawler_state') : '/';
				$localize_data['nonce'] = wp_create_nonce('wp_rest');
			}
		}

		if ($localize_data) {
			wp_localize_script(Core::PLUGIN_NAME, 'litespeed_data', $localize_data);
		}

		wp_enqueue_script(Core::PLUGIN_NAME);
	}

	/**
	 * Babel type for crawler
	 *
	 * @since  3.6
	 */
	public function babel_type($tag, $handle, $src)
	{
		if ($handle != Core::PLUGIN_NAME . '-crawler' && $handle != Core::PLUGIN_NAME . '-cdn') {
			return $tag;
		}

		return '<script src="' . $src . '" type="text/babel"></script>';
	}

	/**
	 * Callback that adds LiteSpeed Cache's action links.
	 *
	 * @since 1.0.0
	 * @access public
	 * @param array $links Previously added links from other plugins.
	 * @return array Links array with the litespeed cache one appended.
	 */
	public function add_plugin_links($links)
	{
		// $links[] = '<a href="' . admin_url('options-general.php?page=litespeed-cache') . '">' . __('Settings', 'litespeed-cache') . '</a>';
		$links[] = '<a href="' . admin_url('admin.php?page=litespeed-cache') . '">' . __('Settings', 'litespeed-cache') . '</a>';

		return $links;
	}

	/**
	 * Change the admin footer text on LiteSpeed Cache admin pages.
	 *
	 * @since  1.0.13
	 * @param  string $footer_text
	 * @return string
	 */
	public function admin_footer_text($footer_text)
	{
		require_once LSCWP_DIR . 'tpl/inc/admin_footer.php';

		return $footer_text;
	}

	/**
	 * Builds the html for a single notice.
	 *
	 * @since 1.0.7
	 * @access public
	 * @param string $color The color to use for the notice.
	 * @param string $str The notice message.
	 * @return string The built notice html.
	 */
	public static function build_notice($color, $str, $irremovable = false)
	{
		$cls = $color;
		if ($irremovable) {
			$cls .= ' litespeed-irremovable';
		} else {
			$cls .= ' is-dismissible';
		}

		// possible translation
		$str = Lang::maybe_translate($str);

		return '<div class="litespeed_icon ' . $cls . '"><p>' . wp_kses_post($str) . '</p></div>';
	}

	/**
	 * Display info notice
	 *
	 * @since 1.6.5
	 * @access public
	 */
	public static function info($msg, $echo = false, $irremovable = false)
	{
		self::add_notice(self::NOTICE_BLUE, $msg, $echo, $irremovable);
	}

	/**
	 * Display note notice
	 *
	 * @since 1.6.5
	 * @access public
	 */
	public static function note($msg, $echo = false, $irremovable = false)
	{
		self::add_notice(self::NOTICE_YELLOW, $msg, $echo, $irremovable);
	}

	/**
	 * Display success notice
	 *
	 * @since 1.6
	 * @access public
	 */
	public static function success($msg, $echo = false, $irremovable = false)
	{
		self::add_notice(self::NOTICE_GREEN, $msg, $echo, $irremovable);
	}
	/** @deprecated 4.7 */
	public static function succeed($msg, $echo = false, $irremovable = false)
	{
		self::success($msg, $echo, $irremovable);
	}

	/**
	 * Display error notice
	 *
	 * @since 1.6
	 * @access public
	 */
	public static function error($msg, $echo = false, $irremovable = false)
	{
		self::add_notice(self::NOTICE_RED, $msg, $echo, $irremovable);
	}

	/**
	 * Add irremovable msg
	 * @since 4.7
	 */
	public static function add_unique_notice($color_mode, $msgs, $irremovable = false)
	{
		if (!is_array($msgs)) {
			$msgs = array($msgs);
		}

		$color_map = array(
			'info' => self::NOTICE_BLUE,
			'note' => self::NOTICE_YELLOW,
			'success' => self::NOTICE_GREEN,
			'error' => self::NOTICE_RED,
		);
		if (empty($color_map[$color_mode])) {
			self::debug('Wrong admin display color mode!');
			return;
		}
		$color = $color_map[$color_mode];

		// Go through to make sure unique
		$filtered_msgs = array();
		foreach ($msgs as $k => $str) {
			if (is_numeric($k)) {
				$k = md5($str);
			} // Use key to make it overwritable to previous same msg
			$filtered_msgs[$k] = $str;
		}

		self::add_notice($color, $filtered_msgs, false, $irremovable);
	}

	/**
	 * Adds a notice to display on the admin page
	 *
	 * @since 1.0.7
	 * @access public
	 */
	public static function add_notice($color, $msg, $echo = false, $irremovable = false)
	{
		// self::debug("add_notice msg", $msg);
		// Bypass adding for CLI or cron
		if (defined('LITESPEED_CLI') || defined('DOING_CRON')) {
			// WP CLI will show the info directly
			if (defined('WP_CLI') && WP_CLI) {
				if (!is_array($msg)) {
					$msg = array($msg);
				}
				foreach ($msg as $v) {
					$v = strip_tags($v);
					if ($color == self::NOTICE_RED) {
						\WP_CLI::error($v, false);
					} else {
						\WP_CLI::success($v);
					}
				}
			}
			return;
		}

		if ($echo) {
			echo self::build_notice($color, $msg);
			return;
		}

		$msg_name = $irremovable ? self::DB_MSG_PIN : self::DB_MSG;

		$messages = self::get_option($msg_name, array());
		if (!is_array($messages)) {
			$messages = array();
		}

		if (is_array($msg)) {
			foreach ($msg as $k => $str) {
				$messages[$k] = self::build_notice($color, $str, $irremovable);
			}
		} else {
			$messages[] = self::build_notice($color, $msg, $irremovable);
		}
		$messages = array_unique($messages);
		self::update_option($msg_name, $messages);
	}

	/**
	 * Display notices and errors in dashboard
	 *
	 * @since 1.1.0
	 * @access public
	 */
	public function display_messages()
	{
		if (!defined('LITESPEED_CONF_LOADED')) {
			$this->_in_upgrading();
		}

		if (GUI::has_whm_msg()) {
			$this->show_display_installed();
		}

		Data::cls()->check_upgrading_msg();

		// If is in dev version, always check latest update
		Cloud::cls()->check_dev_version();

		// One time msg
		$messages = self::get_option(self::DB_MSG, array());
		$added_thickbox = false;
		if (is_array($messages)) {
			foreach ($messages as $msg) {
				// Added for popup links
				if (strpos($msg, 'TB_iframe') && !$added_thickbox) {
					add_thickbox();
					$added_thickbox = true;
				}
				echo wp_kses_post($msg);
			}
		}
		if ($messages != -1) {
			self::update_option(self::DB_MSG, -1);
		}

		// Pinned msg
		$messages = self::get_option(self::DB_MSG_PIN, array());
		if (is_array($messages)) {
			foreach ($messages as $k => $msg) {
				// Added for popup links
				if (strpos($msg, 'TB_iframe') && !$added_thickbox) {
					add_thickbox();
					$added_thickbox = true;
				}

				// Append close btn
				if (substr($msg, -6) == '</div>') {
					$link = Utility::build_url(Core::ACTION_DISMISS, GUI::TYPE_DISMISS_PIN, false, null, array('msgid' => $k));
					$msg =
						substr($msg, 0, -6) .
						'<p><a href="' .
						$link .
						'" class="button litespeed-btn-primary litespeed-btn-mini">' .
						__('Dismiss', 'litespeed-cache') .
						'</a>' .
						'</p></div>';
				}
				echo wp_kses_post($msg);
			}
		}
		// if ( $messages != -1 ) {
		// 	self::update_option( self::DB_MSG_PIN, -1 );
		// }

		if (empty($_GET['page']) || strpos($_GET['page'], 'litespeed') !== 0) {
			global $pagenow;
			if ($pagenow != 'plugins.php') {
				// && $pagenow != 'index.php'
				return;
			}
		}

		// Show disable all warning
		if (defined('LITESPEED_DISABLE_ALL')) {
			Admin_Display::error(Error::msg('disabled_all'), true);
		}

		if (!$this->conf(self::O_NEWS)) {
			return;
		}

		// Show promo from cloud
		Cloud::cls()->show_promo();

		/**
		 * Check promo msg first
		 * @since 2.9
		 */
		GUI::cls()->show_promo();

		// Show version news
		Cloud::cls()->news();
	}

	/**
	 * Dismiss pinned msg
	 *
	 * @since 3.5.2
	 * @access public
	 */
	public static function dismiss_pin()
	{
		if (!isset($_GET['msgid'])) {
			return;
		}

		$messages = self::get_option(self::DB_MSG_PIN, array());
		if (!is_array($messages) || empty($messages[$_GET['msgid']])) {
			return;
		}

		unset($messages[$_GET['msgid']]);
		if (!$messages) {
			$messages = -1;
		}
		self::update_option(self::DB_MSG_PIN, $messages);
	}

	/**
	 * Hooked to the in_widget_form action.
	 * Appends LiteSpeed Cache settings to the widget edit settings screen.
	 * This will append the esi on/off selector and ttl text.
	 *
	 * @since 1.1.0
	 * @access public
	 */
	public function show_widget_edit($widget, $return, $instance)
	{
		require LSCWP_DIR . 'tpl/esi_widget_edit.php';
	}

	/**
	 * Displays the dashboard page.
	 *
	 * @since 3.0
	 * @access public
	 */
	public function show_menu_dash()
	{
		require_once LSCWP_DIR . 'tpl/dash/entry.tpl.php';
	}

	/**
	 * Displays the General page.
	 *
	 * @since 5.3
	 * @access public
	 */
	public function show_menu_presets()
	{
		require_once LSCWP_DIR . 'tpl/presets/entry.tpl.php';
	}

	/**
	 * Displays the General page.
	 *
	 * @since 3.0
	 * @access public
	 */
	public function show_menu_general()
	{
		require_once LSCWP_DIR . 'tpl/general/entry.tpl.php';
	}

	/**
	 * Displays the CDN page.
	 *
	 * @since 3.0
	 * @access public
	 */
	public function show_menu_cdn()
	{
		require_once LSCWP_DIR . 'tpl/cdn/entry.tpl.php';
	}

	/**
	 * Displays the CDN page.
	 *
	 * @since 3.0
	 * @access public
	 */
	public function show_menu_auto_cdn_setup()
	{
		require_once LSCWP_DIR . 'tpl/auto_cdn_setup/entry.tpl.php';
	}

	/**
	 * Outputs the LiteSpeed Cache settings page.
	 *
	 * @since 1.0.0
	 * @access public
	 */
	public function show_menu_cache()
	{
		if ($this->_is_network_admin) {
			require_once LSCWP_DIR . 'tpl/cache/entry_network.tpl.php';
		} else {
			require_once LSCWP_DIR . 'tpl/cache/entry.tpl.php';
		}
	}

	/**
	 * Tools page
	 *
	 * @since 3.0
	 * @access public
	 */
	public function show_toolbox()
	{
		require_once LSCWP_DIR . 'tpl/toolbox/entry.tpl.php';
	}

	/**
	 * Outputs the crawler operation page.
	 *
	 * @since 1.1.0
	 * @access public
	 */
	public function show_crawler()
	{
		require_once LSCWP_DIR . 'tpl/crawler/entry.tpl.php';
	}

	/**
	 * Outputs the optimization operation page.
	 *
	 * @since 1.6
	 * @access public
	 */
	public function show_img_optm()
	{
		require_once LSCWP_DIR . 'tpl/img_optm/entry.tpl.php';
	}

	/**
	 * Page optm page.
	 *
	 * @since 3.0
	 * @access public
	 */
	public function show_page_optm()
	{
		require_once LSCWP_DIR . 'tpl/page_optm/entry.tpl.php';
	}

	/**
	 * DB optm page.
	 *
	 * @since 3.0
	 * @access public
	 */
	public function show_db_optm()
	{
		require_once LSCWP_DIR . 'tpl/db_optm/entry.tpl.php';
	}

	/**
	 * Outputs a notice to the admin panel when the plugin is installed
	 * via the WHM plugin.
	 *
	 * @since 1.0.12
	 * @access public
	 */
	public function show_display_installed()
	{
		require_once LSCWP_DIR . 'tpl/inc/show_display_installed.php';
	}

	/**
	 * Display error cookie msg.
	 *
	 * @since 1.0.12
	 * @access public
	 */
	public static function show_error_cookie()
	{
		require_once LSCWP_DIR . 'tpl/inc/show_error_cookie.php';
	}

	/**
	 * Display warning if lscache is disabled
	 *
	 * @since 2.1
	 * @access public
	 */
	public function cache_disabled_warning()
	{
		include LSCWP_DIR . 'tpl/inc/check_cache_disabled.php';
	}

	/**
	 * Display conf data upgrading banner
	 *
	 * @since 2.1
	 * @access private
	 */
	private function _in_upgrading()
	{
		include LSCWP_DIR . 'tpl/inc/in_upgrading.php';
	}

	/**
	 * Output litespeed form info
	 *
	 * @since    3.0
	 * @access public
	 */
	public function form_action($action = false, $type = false, $has_upload = false)
	{
		if (!$action) {
			$action = Router::ACTION_SAVE_SETTINGS;
		}

		$has_upload = $has_upload ? 'enctype="multipart/form-data"' : '';

		if (!defined('LITESPEED_CONF_LOADED')) {
			echo '<div class="litespeed-relative"';
		} else {
			echo '<form method="post" action="' . wp_unslash($_SERVER['REQUEST_URI']) . '" class="litespeed-relative" ' . $has_upload . '>';
		}

		echo '<input type="hidden" name="' . Router::ACTION . '" value="' . $action . '" />';
		if ($type) {
			echo '<input type="hidden" name="' . Router::TYPE . '" value="' . $type . '" />';
		}
		wp_nonce_field($action, Router::NONCE);
	}

	/**
	 * Output litespeed form info END
	 *
	 * @since    3.0
	 * @access public
	 */
	public function form_end($disable_reset = false)
	{
		echo "<div class='litespeed-top20'></div>";

		if (!defined('LITESPEED_CONF_LOADED')) {
			submit_button(__('Save Changes', 'litespeed-cache'), 'secondary litespeed-duplicate-float', 'litespeed-submit', true, array('disabled' => 'disabled'));

			echo '</div>';
		} else {
			submit_button(__('Save Changes', 'litespeed-cache'), 'primary litespeed-duplicate-float', 'litespeed-submit', true, array(
				'id' => 'litespeed-submit-' . $this->_btn_i++,
			));

			echo '</form>';
		}
	}

	/**
	 * Register this setting to save
	 *
	 * @since  3.0
	 * @access public
	 */
	public function enroll($id)
	{
		echo '<input type="hidden" name="' . Admin_Settings::ENROLL . '[]" value="' . $id . '" />';
	}

	/**
	 * Build a textarea
	 *
	 * @since 1.1.0
	 * @access public
	 */
	public function build_textarea($id, $cols = false, $val = null)
	{
		if ($val === null) {
			$val = $this->conf($id, true);

			if (is_array($val)) {
				$val = implode("\n", $val);
			}
		}

		if (!$cols) {
			$cols = 80;
		}

		$rows = 5;
		$lines = substr_count($val, "\n") + 2;
		if ($lines > $rows) {
			$rows = $lines;
		}
		if ($rows > 40) {
			$rows = 40;
		}

		$this->enroll($id);

		echo "<textarea name='$id' rows='$rows' cols='$cols'>" . esc_textarea($val) . '</textarea>';

		$this->_check_overwritten($id);
	}

	/**
	 * Build a text input field
	 *
	 * @since 1.1.0
	 * @access public
	 */
	public function build_input($id, $cls = null, $val = null, $type = 'text', $disabled = false)
	{
		if ($val === null) {
			$val = $this->conf($id, true);

			// Mask pswds
			if ($this->_conf_pswd($id) && $val) {
				$val = str_repeat('*', strlen($val));
			}
		}

		$label_id = preg_replace('/\W/', '', $id);

		if ($type == 'text') {
			$cls = "regular-text $cls";
		}

		if ($disabled) {
			echo "<input type='$type' class='$cls' value='" . esc_textarea($val) . "' id='input_$label_id' disabled /> ";
		} else {
			$this->enroll($id);
			echo "<input type='$type' class='$cls' name='$id' value='" . esc_textarea($val) . "' id='input_$label_id' /> ";
		}

		$this->_check_overwritten($id);
	}

	/**
	 * Build a checkbox html snippet
	 *
	 * @since 1.1.0
	 * @access public
	 * @param  string $id
	 * @param  string $title
	 * @param  bool $checked
	 */
	public function build_checkbox($id, $title, $checked = null, $value = 1)
	{
		if ($checked === null && $this->conf($id, true)) {
			$checked = true;
		}
		$checked = $checked ? ' checked ' : '';

		$label_id = preg_replace('/\W/', '', $id);

		if ($value !== 1) {
			$label_id .= '_' . $value;
		}

		$this->enroll($id);

		echo "<div class='litespeed-tick'>
			<input type='checkbox' name='$id' id='input_checkbox_$label_id' value='$value' $checked />
			<label for='input_checkbox_$label_id'>$title</label>
		</div>";

		$this->_check_overwritten($id);
	}

	/**
	 * Build a toggle checkbox html snippet
	 *
	 * @since 1.7
	 */
	public function build_toggle($id, $checked = null, $title_on = null, $title_off = null)
	{
		if ($checked === null && $this->conf($id, true)) {
			$checked = true;
		}
		if ($title_on === null) {
			$title_on = __('ON', 'litespeed-cache');
			$title_off = __('OFF', 'litespeed-cache');
		}
		$cls = $checked ? 'primary' : 'default litespeed-toggleoff';
		echo "<div class='litespeed-toggle litespeed-toggle-btn litespeed-toggle-btn-$cls' data-litespeed-toggle-on='primary' data-litespeed-toggle-off='default' data-litespeed_toggle_id='$id' >
				<input name='$id' type='hidden' value='$checked' />
				<div class='litespeed-toggle-group'>
					<label class='litespeed-toggle-btn litespeed-toggle-btn-primary litespeed-toggle-on'>$title_on</label>
					<label class='litespeed-toggle-btn litespeed-toggle-btn-default litespeed-toggle-active litespeed-toggle-off'>$title_off</label>
					<span class='litespeed-toggle-handle litespeed-toggle-btn litespeed-toggle-btn-default'></span>
				</div>
			</div>";
	}

	/**
	 * Build a switch div html snippet
	 *
	 * @since 1.1.0
	 * @since 1.7 removed param $disable
	 * @access public
	 */
	public function build_switch($id, $title_list = false)
	{
		$this->enroll($id);

		echo '<div class="litespeed-switch">';

		if (!$title_list) {
			$title_list = array(__('OFF', 'litespeed-cache'), __('ON', 'litespeed-cache'));
		}

		foreach ($title_list as $k => $v) {
			$this->_build_radio($id, $k, $v);
		}

		echo '</div>';

		$this->_check_overwritten($id);
	}

	/**
	 * Build a radio input html codes and output
	 *
	 * @since 1.1.0
	 * @access private
	 */
	private function _build_radio($id, $val, $txt)
	{
		$id_attr = 'input_radio_' . preg_replace('/\W/', '', $id) . '_' . $val;

		$default = isset(self::$_default_options[$id]) ? self::$_default_options[$id] : self::$_default_site_options[$id];

		if (!is_string($default)) {
			$checked = (int) $this->conf($id, true) === (int) $val ? ' checked ' : '';
		} else {
			$checked = $this->conf($id, true) === $val ? ' checked ' : '';
		}

		echo "<input type='radio' autocomplete='off' name='$id' id='$id_attr' value='$val' $checked /> <label for='$id_attr'>$txt</label>";
	}

	/**
	 * Show overwritten msg if there is a const defined
	 *
	 * @since  3.0
	 */
	protected function _check_overwritten($id)
	{
		$const_val = $this->const_overwritten($id);
		$primary_val = $this->primary_overwritten($id);
		if ($const_val === null && $primary_val === null) {
			return;
		}

		$val = $const_val !== null ? $const_val : $primary_val;

		$default = isset(self::$_default_options[$id]) ? self::$_default_options[$id] : self::$_default_site_options[$id];

		if (is_bool($default)) {
			$val = $val ? __('ON', 'litespeed-cache') : __('OFF', 'litespeed-cache');
		} else {
			if (is_array($default)) {
				$val = implode("\n", $val);
			}
			$val = esc_textarea($val);
		}

		echo '<div class="litespeed-desc litespeed-warning">⚠️ ';

		if ($const_val !== null) {
			echo sprintf(__('This setting is overwritten by the PHP constant %s', 'litespeed-cache'), '<code>' . Base::conf_const($id) . '</code>');
		} else {
			if (get_current_blog_id() != BLOG_ID_CURRENT_SITE && $this->conf(self::NETWORK_O_USE_PRIMARY)) {
				echo __('This setting is overwritten by the primary site setting', 'litespeed-cache');
			} else {
				echo __('This setting is overwritten by the Network setting', 'litespeed-cache');
			}
		}

		echo ', ' . sprintf(__('currently set to %s', 'litespeed-cache'), "<code>$val</code>") . '</div>';
	}

	/**
	 * Display seconds text and readable layout
	 *
	 * @since 3.0
	 * @access public
	 */
	public function readable_seconds()
	{
		echo __('seconds', 'litespeed-cache');
		echo ' <span data-litespeed-readable=""></span>';
	}

	/**
	 * Display default value
	 *
	 * @since  1.1.1
	 * @access public
	 */
	public function recommended($id)
	{
		if (!$this->default_settings) {
			$this->default_settings = $this->load_default_vals();
		}

		$val = $this->default_settings[$id];

		if ($val) {
			if (is_array($val)) {
				$rows = 5;
				$cols = 30;
				// Flexible rows/cols
				$lines = count($val) + 1;
				$rows = min(max($lines, $rows), 40);
				foreach ($val as $v) {
					$cols = max(strlen($v), $cols);
				}
				$cols = min($cols, 150);

				$val = implode("\n", $val);
				$val = esc_textarea($val);
				$val = '<div class="litespeed-desc">' . __('Default value', 'litespeed-cache') . ':</div>' . "<textarea readonly rows='$rows' cols='$cols'>$val</textarea>";
			} else {
				$val = esc_textarea($val);
				$val = "<code>$val</code>";
				$val = __('Default value', 'litespeed-cache') . ': ' . $val;
			}
			echo $val;
		}
	}

	/**
	 * Validate rewrite rules regex syntax
	 *
	 * @since  3.0
	 */
	protected function _validate_syntax($id)
	{
		$val = $this->conf($id, true);

		if (!$val) {
			return;
		}

		if (!is_array($val)) {
			$val = array($val);
		}

		foreach ($val as $v) {
			if (!Utility::syntax_checker($v)) {
				echo '<br /><font class="litespeed-warning"> ❌ ' . __('Invalid rewrite rule', 'litespeed-cache') . ': <code>' . $v . '</code></font>';
			}
		}
	}

	/**
	 * Validate if the htaccess path is valid
	 *
	 * @since  3.0
	 */
	protected function _validate_htaccess_path($id)
	{
		$val = $this->conf($id, true);
		if (!$val) {
			return;
		}

		if (substr($val, -10) !== '/.htaccess') {
			echo '<br /><font class="litespeed-warning"> ❌ ' . sprintf(__('Path must end with %s', 'litespeed-cache'), '<code>/.htaccess</code>') . '</font>';
		}
	}

	/**
	 * Check ttl instead of error when saving
	 *
	 * @since  3.0
	 */
	protected function _validate_ttl($id, $min = false, $max = false, $allow_zero = false)
	{
		$val = $this->conf($id, true);

		if ($allow_zero && !$val) {
			// return;
		}

		$tip = array();
		if ($min && $val < $min && (!$allow_zero || $val != 0)) {
			$tip[] = __('Minimum value', 'litespeed-cache') . ': <code>' . $min . '</code>.';
		}
		if ($max && $val > $max) {
			$tip[] = __('Maximum value', 'litespeed-cache') . ': <code>' . $max . '</code>.';
		}

		echo '<br />';

		if ($tip) {
			echo '<font class="litespeed-warning"> ❌ ' . implode(' ', $tip) . '</font>';
		}

		$range = '';

		if ($allow_zero) {
			$range .= __('Zero, or', 'litespeed-cache') . ' ';
		}

		if ($min && $max) {
			$range .= $min . ' - ' . $max;
		} elseif ($min) {
			$range .= __('Larger than', 'litespeed-cache') . ' ' . $min;
		} elseif ($max) {
			$range .= __('Smaller than', 'litespeed-cache') . ' ' . $max;
		}

		echo __('Value range', 'litespeed-cache') . ': <code>' . $range . '</code>';
	}

	/**
	 * Check if ip is valid
	 *
	 * @since  3.0
	 */
	protected function _validate_ip($id)
	{
		$val = $this->conf($id, true);
		if (!$val) {
			return;
		}

		if (!is_array($val)) {
			$val = array($val);
		}

		$tip = array();
		foreach ($val as $v) {
			if (!$v) {
				continue;
			}

			if (!\WP_Http::is_ip_address($v)) {
				$tip[] = __('Invalid IP', 'litespeed-cache') . ': <code>' . esc_textarea($v) . '</code>.';
			}
		}

		if ($tip) {
			echo '<br /><font class="litespeed-warning"> ❌ ' . implode(' ', $tip) . '</font>';
		}
	}

	/**
	 * Display API environment variable support
	 *
	 * @since  1.8.3
	 * @access protected
	 */
	protected function _api_env_var()
	{
		$args = func_get_args();
		$s = '<code>' . implode('</code>, <code>', $args) . '</code>';

		echo '<font class="litespeed-success"> ' .
			__('API', 'litespeed-cache') .
			': ' .
			sprintf(__('Server variable(s) %s available to override this setting.', 'litespeed-cache'), $s);

		Doc::learn_more('https://docs.litespeedtech.com/lscache/lscwp/admin/#limiting-the-crawler');
	}

	/**
	 * Display URI setting example
	 *
	 * @since  2.6.1
	 * @access protected
	 */
	protected function _uri_usage_example()
	{
		echo __('The URLs will be compared to the REQUEST_URI server variable.', 'litespeed-cache');
		echo ' ' . sprintf(__('For example, for %s, %s can be used here.', 'litespeed-cache'), '<code>/mypath/mypage?aa=bb</code>', '<code>mypage?aa=</code>');
		echo '<br /><i>';
		echo sprintf(__('To match the beginning, add %s to the beginning of the item.', 'litespeed-cache'), '<code>^</code>');
		echo ' ' . sprintf(__('To do an exact match, add %s to the end of the URL.', 'litespeed-cache'), '<code>$</code>');
		echo ' ' . __('One per line.', 'litespeed-cache');
		echo '</i>';
	}

	/**
	 * Return groups string
	 *
	 * @since  2.0
	 * @access public
	 */
	public static function print_plural($num, $kind = 'group')
	{
		if ($num > 1) {
			switch ($kind) {
				case 'group':
					return sprintf(__('%s groups', 'litespeed-cache'), $num);

				case 'image':
					return sprintf(__('%s images', 'litespeed-cache'), $num);

				default:
					return $num;
			}
		}

		switch ($kind) {
			case 'group':
				return sprintf(__('%s group', 'litespeed-cache'), $num);

			case 'image':
				return sprintf(__('%s image', 'litespeed-cache'), $num);

			default:
				return $num;
		}
	}

	/**
	 * Return guidance html
	 *
	 * @since  2.0
	 * @access public
	 */
	public static function guidance($title, $steps, $current_step)
	{
		if ($current_step === 'done') {
			$current_step = count($steps) + 1;
		}

		$percentage = ' (' . floor((($current_step - 1) * 100) / count($steps)) . '%)';

		$html = '<div class="litespeed-guide">' . '<h2>' . $title . $percentage . '</h2>' . '<ol>';
		foreach ($steps as $k => $v) {
			$step = $k + 1;
			if ($current_step > $step) {
				$html .= '<li class="litespeed-guide-done">';
			} else {
				$html .= '<li>';
			}
			$html .= $v . '</li>';
		}

		$html .= '</ol></div>';

		return $html;
	}
}