<?php
if( class_exists('Optimisationio_Dashboard') ){ return; }

class Optimisationio_Dashboard {

	private static $instance = null;

	private static $str_i18n = array();

	public static $addons_slug = array( 'wp-disable', 'cache-performance', 'wp-image-compression' );

	public static $addons = null;

	function __construct() {

		self::$str_i18n = array(
			"n/a"	=> __( "n/a", "optimisationio" ),
			"install" => __( "Install", "optimisationio" ),
			"activate" => __( "Activate", "optimisationio" ),
			"deactivate" => __( "Deactivate", "optimisationio" ),
			"changes_may_not_saved" => __("Changes you made may not be saved.", "optimisationio")
		);

		add_action( 'admin_menu', array( $this, 'statistics_menu' ), 8 );
		add_action( 'admin_enqueue_scripts', array( $this, 'addons_pages_styles' ) );
		add_action( 'admin_enqueue_scripts', array( $this, 'addons_pages_scripts' ) );
		add_action( 'wp_ajax_optimisationio_install_addon', array( $this, 'ajax_install_addon' ) );
		add_action( 'wp_ajax_optimisationio_deactivate_addon', array( $this, 'ajax_deactivate_addon' ) );
		add_action( 'wp_ajax_optimisationio_activate_addon', array( $this, 'ajax_activate_addon' ) );
		add_action( 'wp_ajax_optimisationio_import_addons_settings', array( $this, 'ajax_import_addons_settings' ) );
		add_action( 'wp_ajax_optimisationio_export_addons_settings', array( $this, 'ajax_export_addons_settings' ) );
	}

	public static function init(){
		if( null === self::$instance ){
			self::$instance = new self();
		}
	}

	public function statistics_menu() {
		add_menu_page( __( 'Optimisation.io', 'optimisationio' ), __( 'Optimisation.io', 'optimisationio' ), 'manage_options', 'optimisationio-dashboard', array( $this, 'dashboard_page' ), 'dashicons-dashboard' );
	}

	public function dashboard_page() {
		if( null === self::$addons ){
			self::init_addons();
		}
		require_once( plugin_dir_path( dirname( __FILE__ ) ) . 'views/optimisationio-dashboard.php' );
	}

	public function addons_pages_styles($hook){
		if ( 'toplevel_page_optimisationio-dashboard' === $hook ) {
			wp_enqueue_style( 'optimisationio-dashboard', plugin_dir_url( dirname( __FILE__ ) ) . 'css/optimisationio-dashboard.css' );
		}
	}

	public function addons_pages_scripts($hook){
		if ( 'toplevel_page_optimisationio-dashboard' === $hook ) {
			wp_enqueue_script( 'optimisationio-import-export', plugin_dir_url( dirname( __FILE__ ) ) . 'js/clipboard.min.js' );
			wp_enqueue_script( 'optimisationio-dashboard', plugin_dir_url( dirname( __FILE__ ) ) . 'js/optimisationio-dashboard.js' );
		}
	}

	private function wp_verify_nonce($nonce, $type){
		return wp_verify_nonce( $nonce, $type );
	}

	public function ajax_install_addon(){

		$post_req = $_POST;	// Input var okay.

		$ret = array( 'error'	=> 1 );

		if( $this->wp_verify_nonce( $post_req['nonce'], 'optimisationio-addons-nonce' ) ){

			if( isset( $post_req['link'] ) && $post_req['link'] ){

				global $wp_filesystem;

				if ( ! $wp_filesystem ) {
					if ( ! function_exists( 'WP_Filesystem' ) ) {
						require_once( ABSPATH . 'wp-admin/includes/file.php' );
					}
					WP_Filesystem();
				}

				// @note: Check if plugins root folder is writable.
				if ( ! WP_Filesystem( false, WP_PLUGIN_DIR ) || 'direct' !== $wp_filesystem->method ) {
					$ret['msg'] = 'You are not allowed to edt folders/files on this site';
				}
				else {

					ob_start();
					require_once( ABSPATH . 'wp-admin/includes/file.php' );
					require_once( ABSPATH . 'wp-admin/includes/misc.php' );
					require_once( ABSPATH . 'wp-admin/includes/class-wp-upgrader.php' );
					require_once( 'class-optimisationio-upgrader-skin.php' );
					$upgrader = new Plugin_Upgrader( new Optimisationio_Upgrader_Skin() );
					$install = $upgrader->install( $post_req['link'] );
					ob_end_clean();

					if( null === $install ){
						$ret['msg'] = 'Could not complete add-on installation';
					}
					else{
						$ret['error'] = 0;
					}

				}

			}
			else{
				$ret['msg'] = "Invalid addon";
			}
		}
		else{
			$ret['msg'] = "Invalid user";
		}

		wp_send_json( $ret );
	}

	public function ajax_activate_addon(){

		$post_req = $_POST;	// Input var okay.

		$ret = array( 'error'	=> 1 );

		if( $this->wp_verify_nonce( $post_req['nonce'], 'optimisationio-addons-nonce' ) ){

			if( isset( $post_req['file'] ) && $post_req['file'] ){

				self::$addons = null;

				$ret['addons_number'] = self::active_addons_number();

				$result = activate_plugin( $post_req['file'] );

				if ( ! is_wp_error( $result ) ) {
					$ret['error'] = 0;
					$ret['msg'] = "Successful activation";

					switch( $post_req['slug'] ){
						case 'wp-disable':
						case 'wp-image-compression':
						case 'cache-performance':
							ob_start();
							self::display_stats__measurements();
							$ret['measurements_content_replace'] = ob_get_contents();
							ob_end_clean();
							break;
					}

					switch( $post_req['slug'] ){
						case 'wp-disable':
							ob_start();
							self::display_addons__settings('wp-disable');
							$ret['plugin_settings_content'] = ob_get_contents();
							ob_end_clean();

							ob_start();
							self::sidebar_tabs_section_content();
							$ret['sidebar_tabs_content'] = ob_get_contents();
							ob_end_clean();
							break;
						case 'cache-performance':
							ob_start();
							self::display_addons__settings('cache-performance');
							$ret['plugin_settings_content'] = ob_get_contents();
							ob_end_clean();
							break;
						case 'wp-image-compression':
							ob_start();
							self::display_addons__settings('wp-image-compression');
							$ret['plugin_settings_content'] = ob_get_contents();
							ob_end_clean();
							$ret['cloudinary_api_settings_content'] = self::display_cloudinary_api__settings(false, false);
							break;
					}
				}
				else{
					$ret['msg'] = "Activation error";
				}
			}
			else{
				$ret['msg'] = "Invalid addon";
			}
		}
		else{
			$ret['msg'] = "Invalid user";
		}

		wp_send_json( $ret );
	}

	public function ajax_deactivate_addon(){

		$post_req = $_POST;	// Input var okay.

		$ret = array( 'error' => 1 );

		if( $this->wp_verify_nonce( $post_req['nonce'], 'optimisationio-addons-nonce' ) ){

			if( isset( $post_req['file'] ) && $post_req['file'] ){

				self::$addons = null;

				$ret['addons_number'] = self::active_addons_number();

				if( 1 < self::active_addons_number() ){

					$result = deactivate_plugins( $post_req['file'] );

					if ( ! is_wp_error( $result ) ) {
						$ret['error'] = 0;
						$ret['msg'] = "Successful deactivation";

						switch( $post_req['slug'] ){
							case 'wp-disable':
							case 'wp-image-compression':
							case 'cache-performance':
								ob_start();
								self::display_stats__measurements();
								$ret['measurements_content_replace'] = ob_get_contents();
								ob_end_clean();
								break;
						}

						switch( $post_req['slug'] ){
							case 'wp-disable':
								ob_start();
								self::display_addons__settings('wp-disable');
								$ret['plugin_settings_content'] = ob_get_contents();
								ob_end_clean();

								ob_start();
								self::sidebar_tabs_section_content();
								$ret['sidebar_tabs_content'] = ob_get_contents();
								ob_end_clean();
								break;
							case 'cache-performance':
								ob_start();
								self::display_addons__settings('cache-performance');
								$ret['plugin_settings_content'] = ob_get_contents();
								ob_end_clean();
								break;
							case 'wp-image-compression':
								ob_start();
								self::display_addons__settings('wp-image-compression');
								$ret['plugin_settings_content'] = ob_get_contents();
								ob_end_clean();
								break;
						}
					}
					else{
						$ret['msg'] = "Dectivation error";
					}
				}
				else{
					$ret['type'] = "deny-disable";
					$ret['msg'] = "Can not disable all addons.";
				}
			}
			else{
				$ret['msg'] = "Invalid addon";
			}
		}
		else{
			$ret['msg'] = "Invalid user";
		}

		wp_send_json( $ret );
	}

	public function ajax_import_addons_settings(){

		$post_req = $_POST;	// Input var okay.

		$ret = array( 'error' => 1 );

		if( $this->wp_verify_nonce( $post_req['nonce'], 'optimisationio-import-export-nonce' ) ){

			if( ! isset( $post_req['data'] ) || ! is_string( $post_req['data'] ) ){
				$ret['msg'] = __("Invalid import arguments", "optimisationio");
				$ret['type'] = 'invalid_arguments';
			}
			else{

				$decoded_data = json_decode( base64_decode( $post_req['data'] ), true );

				if( $decoded_data ){
					foreach( self::$addons_slug as $key => $slug ){
						if( isset( $decoded_data[$slug] ) ){
							switch( $slug ){
								case self::$addons_slug[0]:	// 'wp-disable'.
									update_option( 'wpperformance_rev3a_settings', $decoded_data[$slug] );
									if( self::addon_activated($slug) ){
										WpPerformance::synchronize_discussion_data( $decoded_data[$slug] );
									}
									break;
								case self::$addons_slug[1]:	// 'cache-performance'.

									if( isset( $decoded_data[$slug]['cdn_sett'] ) ){
										update_option( 'Optimisationio_rev3a_cdnsettings', $decoded_data[$slug]['cdn_sett'] );
									}

									if( isset( $decoded_data[$slug]['general_sett'] ) ){
										update_option( 'Optimisationio_rev3a_settings', $decoded_data[$slug]['general_sett'] );
									}

									if( isset( $decoded_data[$slug]['db_opt_sett'] ) ){
										update_option( 'Optimisationio_rev3a_dboptimisesetting', $decoded_data[$slug]['db_opt_sett'] );
									}

									if( isset( $decoded_data[$slug]['gravatar_cache_sett'] ) ){
										update_option( 'Optimisationio_rev3a_gravatar_cache_settings', $decoded_data[$slug]['gravatar_cache_sett'] );
									}
									break;
								case self::$addons_slug[2]:	// 'wp-image-compression'.

									if( isset( $decoded_data[$slug]['general_sett'] ) ){
										update_option( '_wpimage_options', $decoded_data[$slug]['general_sett'] );
									}

									if( isset( $decoded_data[$slug]['cloudinary_sett'] ) ){
										update_option( '_wpimage_options_cloudinary', $decoded_data[$slug]['cloudinary_sett'] );
									}

									if( isset( $decoded_data[$slug]['lazy_load_sett'] ) ){
										update_option( '_wpimage_lazyload_options', $decoded_data[$slug]['lazy_load_sett'] );
									}

									if( isset( $decoded_data[$slug]['max_width'] ) ){
										update_option( 'wpimages_max_width', $decoded_data[$slug]['max_width'] );
									}

									if( isset( $decoded_data[$slug]['max_height'] ) ){
										update_option( 'wpimages_max_height', $decoded_data[$slug]['max_height'] );
									}

									if( isset( $decoded_data[$slug]['quality'] ) ){
										update_option( 'wpimages_quality', $decoded_data[$slug]['quality'] );
									}

									if( isset( $decoded_data[$slug]['quality_auto'] ) ){
										update_option( 'wpimages_quality_auto', $decoded_data[$slug]['quality_auto'] );
									}

									if( isset( $decoded_data[$slug]['max_width_library'] ) ){
										update_option( 'wpimages_max_width_library', $decoded_data[$slug]['max_width_library'] );
									}

									if( isset( $decoded_data[$slug]['max_height_library'] ) ){
										update_option( 'wpimages_max_height_library', $decoded_data[$slug]['max_height_library'] );
									}

									if( isset( $decoded_data[$slug]['max_width_other'] ) ){
										update_option( 'wpimages_max_width_other', $decoded_data[$slug]['max_width_other'] );
									}

									if( isset( $decoded_data[$slug]['max_height_other'] ) ){
										update_option( 'wpimages_max_height_other', $decoded_data[$slug]['max_height_other'] );
									}

									if( isset( $decoded_data[$slug]['bmp_to_jpg'] ) ){
										update_option( 'wpimages_bmp_to_jpg', $decoded_data[$slug]['bmp_to_jpg'] );
									}

									if( isset( $decoded_data[$slug]['png_to_jpg'] ) ){
										update_option( 'wpimages_png_to_jpg', $decoded_data[$slug]['png_to_jpg'] );
									}
									break;
							}
						}
					}

					$ret['msg'] = __("Settings imported successfully", "optimisationio");
					$ret['error'] = 0;
				}
				else{
					$ret['msg'] = __("Imported invalid data", "optimisationio");
					$ret['type'] = 'invalid_data';
				}
			}
		}

		wp_send_json($ret);
	}

	public function ajax_export_addons_settings(){

		$post_req = $_POST;	// Input var okay.

		$ret = array( 'error' => null );

		if( $this->wp_verify_nonce( $post_req['nonce'], 'optimisationio-import-export-nonce' ) ){

			if( ! isset( $post_req['data'] ) || ! is_array( $post_req['data'] ) ){
				$ret['msg'] = __("Invalid export arguments", "optimisationio");
				$ret['type'] = 'invalid_arguments';
			}
			else{

				$export = array();

				foreach( $post_req['data'] as $key => $val ){
					if( self::addon_activated($val) ){
						switch( $val ){
							case self::$addons_slug[0]:	// 'wp-disable'.
								$export[$val] = get_option( 'wpperformance_rev3a_settings' );
								break;
							case self::$addons_slug[1]:	// 'cache-performance'.
								$export[$val] = array(
									'cdn_sett' => get_option( 'Optimisationio_rev3a_cdnsettings' ),
									'general_sett' => get_option( 'Optimisationio_rev3a_settings' ),
									'db_opt_sett' => get_option( 'Optimisationio_rev3a_dboptimisesetting' ),
									'gravatar_cache_sett' => get_option( 'Optimisationio_rev3a_gravatar_cache_settings' ),
								);
								break;
							case self::$addons_slug[2]:	// 'wp-image-compression'.
								$export[$val] = array(
									'general_sett' => get_option( '_wpimage_options' ),
									'cloudinary_sett' => get_option( '_wpimage_options_cloudinary' ),
									'lazy_load_sett' => get_option( '_wpimage_lazyload_options' ),
									'max_width' => get_option( 'wpimages_max_width' ),
									'max_height' => get_option( 'wpimages_max_height' ),
									'quality' => get_option( 'wpimages_quality' ),
									'quality_auto' => get_option( 'wpimages_quality_auto' ),
									'max_width_library' => get_option( 'wpimages_max_width_library' ),
									'max_height_library' => get_option( 'wpimages_max_height_library' ),
									'max_width_other' => get_option( 'wpimages_max_width_other' ),
									'max_height_other' => get_option( 'wpimages_max_height_other' ),
									'bmp_to_jpg' => get_option( 'wpimages_bmp_to_jpg' ),
									'png_to_jpg' => get_option( 'wpimages_png_to_jpg' ),
								);
								break;
						}
					}
				}

				$ret['decoded_export'] = $export;

				if( count( $export) ){
					$ret['export'] = base64_encode( json_encode( $export ) );
					$ret['error'] = 0;
				}
				else{
					$ret['msg'] = __("Can't find saved data to export", "optimisationio");
					$ret['type'] = 'not_saved_data';
				}
			}
		}
		else{
			$ret['msg'] = __("Failed data verification", "optimisationio");
			$ret['type'] = 'verification_fail';
		}

		wp_send_json($ret);
	}

	public static function init_addons(){

		$addon_homepage = array(
			self::$addons_slug[0] => 'https://wordpress.org/plugins/wp-disable/',
			self::$addons_slug[1] => 'https://wordpress.org/plugins/cache-performance/',
			self::$addons_slug[2] => 'https://wordpress.org/plugins/wp-image-compression/',
		);

		$addon_title = array(
			self::$addons_slug[0] => 'WP Disable',
			self::$addons_slug[1] => 'Cache for WordPress Performance',
			self::$addons_slug[2] => 'JPG, PNG Compression and Optimization',
		);

		$addon_file = array(
			self::$addons_slug[0] => 'wp-disable/wpperformance.php',
			self::$addons_slug[1] => 'cache-performance/optimisationio.php',
			self::$addons_slug[2] => 'wp-image-compression/wp-image-compression.php',
		);

		$addon_description = array(
			self::$addons_slug[0] => __( 'Improve WordPress performance by disabling unused items.', 'optimisationio' ),
			self::$addons_slug[1] => __( 'Simple efficient WordPress caching.', 'optimisationio' ),
			self::$addons_slug[2] => __( 'Image Compression and resizing - Setup under the Tools menu', 'optimisationio' ),
		);

		$addon_image = array(
			self::$addons_slug[0] => plugin_dir_url( dirname( __FILE__ ) ) . 'images/wp-disable.jpg',
			self::$addons_slug[1] => plugin_dir_url( dirname( __FILE__ ) ) . 'images/optimisation-1.jpg',
			self::$addons_slug[2] => plugin_dir_url( dirname( __FILE__ ) ) . 'images/wp-image-compression.jpg',
		);

		foreach (self::$addons_slug as $slug) {
			self::$addons[$slug] = array(
				'slug' => $slug,
				'title' => $addon_title[$slug],
				'file' => $addon_file[$slug],
				'thumb'	=> $addon_image[$slug],
				'homepage'	=> $addon_homepage[$slug],
				'download_link'	=> self::addon_download_link($slug),
				'installed' => self::addon_installed($slug, $addon_file[$slug]),
				'activated' => self::addon_activated($slug, $addon_file[$slug]),
				'description' => $addon_description[$slug],
			);
		}
	}

	public static function addon_installed( $slug, $file = false ){
		if($file){
			return file_exists( WP_PLUGIN_DIR . '/' . $file );
		}
		if( null === self::$addons ){
			self::init_addons();
		}
		return file_exists( WP_PLUGIN_DIR . '/' . self::$addons[$slug]['file'] );
	}

	public static function addon_activated( $slug, $file = false ){
		if($file){
			return self::addon_installed( $slug, $file ) && in_array( $file, apply_filters( 'active_plugins', get_option( 'active_plugins' ) ), true );
		}
		if( null === self::$addons ){
			self::init_addons();
		}

		return self::addon_installed( $slug, $file ) && in_array( self::$addons[$slug]['file'], apply_filters( 'active_plugins', get_option( 'active_plugins' ) ), true );
	}

	public static function active_addons_number(){
		if( null === self::$addons ){
			self::init_addons();
		}
		return ( defined('OPTIMISATIONIO_WP_DISABLE_ADDON') && (int) self::$addons['wp-disable']['activated'] ? 1 : 0 ) +
			   ( defined('OPTIMISATIONIO_CACHE_ADDON') && (int) self::$addons['cache-performance']['activated'] ? 1 : 0 ) +
			   ( defined('OPTIMISATIONIO_IMAGE_COMPRESSION_ADDON') && self::$addons['wp-image-compression']['activated'] ? 1 : 0 );
	}

	public static function addon_download_link($plugin_slug){

		$transient_id = 'optimisaitionio_addon_download_link[' . $plugin_slug . ']';

		$link = get_transient( $transient_id );

		if( false === $link ){

			if( ! function_exists('plugins_api') ){
				include_once( ABSPATH . 'wp-admin/includes/plugin-install.php' );
			}

			$plugin_info = plugins_api( 'plugin_information', array(
				'slug' => $plugin_slug,
				'fields' => array(
					'short_description' => false,
					'sections' => false,
					'requires' => false,
					'rating' => false,
					'ratings' => false,
					'downloaded' => false,
					'last_updated' => false,
					'added' => false,
					'tags' => false,
					'compatibility' => false,
					'homepage' => false,
					'donate_link' => false,
				),
			) );

			if ( ! is_wp_error( $plugin_info ) ) {
				$link = isset( $plugin_info->download_link ) ? $plugin_info->download_link : false;
			}

			if( $link ){
				set_transient( $transient_id, $link, DAY_IN_SECONDS );
			}
		}

		return $link;
	}

	public static function echo_stats_size( $valid, $size ){
		$e = '<i class="n_a">' . __( 'n/a', 'optimisationio' ) . '</i>';
		if( $valid ){
			$size = size_format( $size, 2 );
			$e = $size ? $size : '0 B';
		}
		echo $e;
	}

	public static function echo_addon_state_color( $activated, $installed ){
		echo $installed ? ( $activated ? 'green' : 'orange' ) : 'red';
	}

	public static function delete_transients(){
		foreach (self::$addons_slug as $slug) {
			delete_transient('optimisaitionio_addon_download_link[' . $slug . ']');
		}
	}

	private static function display_stats__compress_images(){
		$active_addon = self::addon_activated('wp-image-compression');
		if ( $active_addon ) {
			global $wpdb;
			$image_compress_info = $wpdb->get_row("SELECT * FROM " . $wpdb->prefix . "image_compression_settings", ARRAY_A);
		}
		?>
		<div class="addon-stats">
			<div class="compress-image-saved">
				<div>
					<div>
						<div>
							<span><?php Optimisationio_Dashboard::echo_stats_size( $active_addon, $active_addon ? 1000 * $image_compress_info['total_size_optimized'] : 0 ); ?></span>
							<?php esc_html_e('Saved', 'optimisationio'); ?>
						</div>
					</div>
				</div>
			</div>
			<br/>
			<br/>
			<div class="total-image-compress"><span><?php echo $active_addon ? $image_compress_info['total_image_optimized'] : '<i class="n_a">' . self::$str_i18n['n/a'] . '</i>'; ?></span> &nbsp;<?php echo sprintf( 'Total Images %sCompressed', '<br/>' ); ?></div>
			<br/>
		</div> <?php
	}

	private static function display_stats__cache_and_database_and_wp_disable(){
		$active_addon = self::addon_activated('cache-performance');
		$cache_info = $active_addon ? Optimisationio_CacheEnabler::get_optimisation_info() : null;
		$wp_disable_active_addon = self::addon_activated('wp-disable');
		?>
		<div class="addon-stats">
			<ul class="cache-and-database-list">
				<li><?php esc_html_e( 'Original DB', 'optimisationio' ); ?><span><?php Optimisationio_Dashboard::echo_stats_size( $active_addon, $active_addon ? $cache_info->size : 0 ); ?></span></li>
				<li><?php esc_html_e( 'New DB', 'optimisationio' ); ?><span><?php Optimisationio_Dashboard::echo_stats_size( $active_addon, $active_addon ? $cache_info->optimised_size : 0 ); ?></span></li>
				<li><?php esc_html_e( 'Savings', 'optimisationio' ); ?><span><?php Optimisationio_Dashboard::echo_stats_size( $active_addon, $active_addon ? $cache_info->saving : 0 ); ?></span></li>
			</ul>
			<ul class="cache-and-database-list">
				<li><?php esc_html_e('Pages average load time', 'optimisationio'); ?><span><?php echo $active_addon ? Optimisationio::average_pages_load_time() : '<i class="n_a">' . self::$str_i18n['n/a'] . '</i>'; ?></span></li>
			</ul>
			<ul class="cache-and-database-list">
				<li><?php esc_html_e( 'Cache', 'optimisationio' ); ?><span><?php Optimisationio_Dashboard::echo_stats_size( $active_addon, $active_addon ? Optimisationio_CacheEnabler::get_cache_size() : 0 ); ?></span></li>
				<li><?php esc_html_e( 'Gravatars Cache', 'optimisationio' ); ?><span><?php echo $active_addon ? Optimisationio_Admin::cache_gravatars_number() : '<i class="n_a">' . self::$str_i18n['n/a'] . '</i>'; ?></span></li>
			</ul>
		</div>
		<?php
	}

	private static function display_stats__activation_buttons( $addon_slug, $addon_data ){
		$loading_gif = '<img src="' . admin_url('images/wpspin_light.gif') . '" alt="" />';
		?>
		<div class="addon-buttons"
			 data-slug="<?php echo esc_attr($addon_slug); ?>"
			 data-file="<?php echo esc_attr($addon_data['file']); ?>"
			 data-link="<?php echo esc_attr($addon_data['download_link']); ?>">
			<button class="install-addon <?php echo ! $addon_data['installed'] ? '' : 'hidden'; ?>"><?php echo self::$str_i18n['install'] ?></button>
			<button class="activate-addon <?php echo $addon_data['installed'] && ! $addon_data['activated'] ? '' : 'hidden'; ?>"><?php echo self::$str_i18n['activate'] ?></button>
			<?php $cn = $addon_data['installed'] && $addon_data['activated'] ? "" : "hidden"; ?>
			<button class="deactivate-addon <?php echo $cn; ?>"><?php echo self::$str_i18n['deactivate'] ?></button>
		</div>
		<span class="on-process hidden"><?php echo $loading_gif; ?></span>
		<?php
	}

	public static function display_stats__measurements(){ ?>
		<div class="statistics-measurements">
			<div class="stats-section">
				<div class="stats-part">
					<?php self::display_stats__compress_images(); ?>
				</div>
				<div class="stats-part">
					<?php self::display_stats__cache_and_database_and_wp_disable(); ?>
				</div>
			</div>
		</div><?php
	}

	public static function display_addons__activation_section($slug){
		$addons = self::$addons;
		if( isset( $addons[$slug] ) ){ ?>
			<div class="addon-activation">
				<a href="<?php echo esc_url( $addons[$slug]['homepage'] ); ?>" title="" target="_blank"><?php echo $addons[$slug]['title'] ?></a>
				<p><?php echo $addons[$slug]['description'] ?></p>
				<br/>
				<?php self::display_stats__activation_buttons($slug, $addons[$slug]); ?>
			</div> <?php
		}
	}

	public static function display_addons__settings($slug){
		switch($slug){
			case 'wp-disable':
				WpPerformance_Admin::addon_settings();
				break;
			case 'cache-performance':
				Optimisationio_Admin::addon_settings();
				break;
			case 'wp-image-compression':
				Wp_Image_compression::addon_settings();
				break;
		}
	}

	public static function display_cloudinary_api__settings( $echo = true, $include_upgrade = true ){
		if( $echo ){
			Wp_Image_compression::cloudinary_settings($include_upgrade);
			return true;
		}
		else{
			ob_start();
			Wp_Image_compression::cloudinary_settings($include_upgrade);
			$ret = ob_get_contents();
			ob_end_clean();
		}
		return $ret;
	}

	public static function checkbox_component($name='', $checked=false){
		$id = '' !== $name ? 'id-' . $name : 'tmp-id-' . substr(uniqid(), -4);
		?>
		<div class="optio-check-component">
			<input id="<?php echo esc_attr($id); ?>" class="optio-check optio-check-light" type="checkbox" name="<?php echo esc_attr($name); ?>" <?php echo $checked ? 'checked' : ''; ?> value="1"/>
			<label for="<?php echo esc_attr($id); ?>" class="optio-check-btn"></label>
		</div> <?php
	}

	public static function sidebar_tabs_section_content(){
		if( null === self::$addons ){
			self::init_addons();
		}
		$addons = self::$addons;
		?>
		<div class="sidebar-tabs-nav">
			<ul>
				<?php if( self::addon_activated('wp-disable') ){ ?>
					<li data-tab-id="ga"><?php esc_html_e('Offload Google Analytics', 'optimisationio'); ?></li>
				<?php } ?>
				<li data-tab-id="imp"><?php esc_html_e('Import', 'optimisationio'); ?></li>
				<li data-tab-id="exp"><?php esc_html_e('Export', 'optimisationio'); ?></li>
			</ul>
		</div>

		<div class="sidebar-tabs-content">
			<ul>
				<?php if( self::addon_activated('wp-disable') ){ ?>
					<li data-tab-id="ga">
						<?php WpPerformance_Admin::offload_google_analytics_settings(); ?>
					</li>
				<?php } ?>
				<li data-tab-id="imp">
					<p><?php esc_html_e("Copy into textarea the encoded string of add-ons settings you have exported", "optimisationio"); ?></p>
					<div class="textarea-wrap">
						<textarea id="import_settings_tarea"></textarea>
					</div>

					<button class="import-btn button button-primary button-large" disabled><?php esc_html_e( "Import settings", "optimisationio" ); ?></button>

					<button class="clear-import-btn button button-large hidden"><?php esc_html_e( "Clear", "optimisationio" ); ?></button>
				</li>
				<li data-tab-id="exp">

					<p><?php esc_html_e("Select the add-οns whose settings you want to include in the exported data", "optimisationio"); ?></p>

					<div class="export-addons-list-options">
						<?php foreach ($addons as $key => $val) {
							if( self::addon_activated($key) ){ ?>
							<label><input type="checkbox" name="export_addons[]" value="<?php echo $val['slug']; ?>" checked /><?php echo $val['title']; ?></label>
						<?php }
						} ?>
					</div>

					<div class="textarea-wrap">
						<textarea id="export_settings_tarea" readonly></textarea>
					</div>

					<button class="export-btn button button-primary button-large"><?php esc_html_e( "Export current settings", "optimisationio" ); ?></button>

					<button class="copy-export-btn button button-large hidden"><?php esc_html_e( "Copy to clipboard", "optimisationio" ); ?></button>
				</li>
			</ul>
		</div>
		<?php
	}
}