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File: /home/honghock/www/wp-content/plugins/admin-notices-manager/includes/classes/class-settings.php
<?php
/**
 * Contains class Settings.
 *
 * @package AdminNoticesManager
 */

declare(strict_types=1);

namespace AdminNoticesManager;

use AdminNoticesManager\Select2_WPWS;
use AdminNoticesManager\Rational_Option_Pages;

if ( ! class_exists( '\AdminNoticesManager\Settings' ) ) {
	/**
	 * Takes care of the admin notices content capture.
	 *
	 * @package AdminNoticesManager
	 * @since   1.0.0
	 */
	class Settings {

		/**
		 * Name of the option storing the plugin settings.
		 *
		 * @var string
		 */
		private static $option_name = 'anm_settings';

		/**
		 * Holds the array with the plugin options
		 *
		 * @var array
		 *
		 * @since latest
		 */
		private static $options = array();

		/**
		 * Settings constructor.
		 */
		public static function init() {

			\add_filter( 'plugin_action_links', array( __CLASS__, 'add_settings_link' ), 10, 2 );

			$options = self::get_settings();

			$notice_handling_options = array(
				'popup-only' => esc_html__( 'Hide from the WordPress dashboard and show them in the plugin\'s popup', 'admin-notices-manager' ),
				'hide'       => esc_html__( 'Hide them completely (do not show in the WordPress dashboard or in the plugin\'s popup)', 'admin-notices-manager' ),
				'leave'      => esc_html__( 'Do not do anything (they will appear on the WordPress dashboard as per usual)', 'admin-notices-manager' ),
			);

			$system_notices_options = $notice_handling_options;
			unset( $system_notices_options['hide'] );

			$standard_notices = array(
				'success' => esc_html__( 'Success level notices', 'admin-notices-manager' ),
				'error'   => esc_html__( 'Error level notices', 'admin-notices-manager' ),
				'warning' => esc_html__( 'Warning level notices', 'admin-notices-manager' ),
				'info'    => esc_html__( 'Information level notices', 'admin-notices-manager' ),
			);

			$standard_notices_section_fields = array();
			foreach ( $standard_notices as $notice_type => $notice_field_title ) {
				$field_name                                     = $notice_type . '-notices';
				$standard_notices_section_fields[ $field_name ] = array(
					'title'   => $notice_field_title,
					'type'    => 'radio',
					'value'   => array_key_exists( $field_name, $options ) ? $options[ $field_name ] : 'popup-only',
					'choices' => $notice_handling_options,
				);
			}

			$popup_style_options = array(
				'slide-in' => esc_html__( 'Slide in from the right', 'admin-notices-manager' ),
				'popup'    => esc_html__( 'Popup', 'admin-notices-manager' ),
			);

			$notification_count = ( get_site_option( 'anm_update_notice_needed', false ) ) ? 1 : 0;

			$pages = array(
				self::$option_name => array(
					'menu_title'  => esc_html__( 'Admin notices settings', 'admin-notices-manager' ),
					'parent_slug' => 'options-general.php',
					'page_title'  => esc_html__( 'Admin notices settings', 'admin-notices-manager' ),
					'text'        => 'Use the settings in this page to configure how the plugin should handle different types of admin notices. Refer to the introduction to admin notices for a detailed explanation about the different types of admin notices available in WordPress.',
					'sections'    => array(
						'standard-notices'     => array(
							'title'  => esc_html__( 'Standard admin notices', 'admin-notices-manager' ),
							'fields' => $standard_notices_section_fields,
						),
						'non-standard-notices' => array(
							'title'  => esc_html__( 'Non-Standard admin notices', 'admin-notices-manager' ),
							'text'   => esc_html__( 'These type of admin notices are typically created by third party plugins and themes and do not have any severity level. Use the below settings to configure how the plugin should handle these type of admin notices.', 'admin-notices-manager' ),
							'fields' => array(
								'no-level-notices' => array(
									'title'   => esc_html__( 'No level notices', 'admin-notices-manager' ),
									'type'    => 'radio',
									'value'   => array_key_exists( 'no-level-notices', $options ) ? $options['no-level-notices'] : 'popup-only',
									'choices' => $notice_handling_options,
								),
								'exceptions'       => array(
									'title' => esc_html__( 'CSS selector', 'admin-notices-manager' ),
									'type'  => 'text',
									'value' => array_key_exists( 'exceptions-css-selector', $options ) ? $options['exceptions-css-selector'] : '',
									'text'  => esc_html__( 'Plugin will ignore all notices matching this CSS selector. Use jQuery compatible CSS selector. You can specify multiple selectors and comma separate them.', 'admin-notices-manager' ),
								),
							),
						),
						'system-notices'       => array(
							'title'  => esc_html__( 'WordPress system admin notices', 'admin-notices-manager' ),
							'text'   => esc_html__( 'These type of admin notices are used by WordPress to advise you about the status of specific actions, for example to confirm that the changed settings were saved, or that a plugin was successfully installed. It is recommended to let these admin notices appear in the WordPress dashboard.', 'admin-notices-manager' ),
							'fields' => array(
								'system-level-notices' => array(
									'title'   => esc_html__( 'WordPress system admin notices', 'admin-notices-manager' ),
									'type'    => 'radio',
									'value'   => array_key_exists( 'system-level-notices', $options ) ? $options['system-level-notices'] : 'leave',
									'choices' => $system_notices_options,
								),
							),
						),
						'user-visibility'      => array(
							'title'  => esc_html__( 'Hiding notifications', 'admin-notices-manager' ),
							'text'   => esc_html__( 'Plugin can hide the notifications from specific users or display them only to certain selected users. Use the below settings to configure this behaviour.', 'admin-notices-manager' ),
							'fields' => array(
								'user-visibility' => array(
									'title'    => esc_html__( 'Visibility', 'admin-notices-manager' ),
									'type'     => 'radio',
									'custom'   => true,
									'callback' => array( __CLASS__, 'render_user_visibility_field' ),
									'value'    => array_key_exists( 'user-visibility', $options ) ? $options['user-visibility'] : 'all',
									'choices'  => array(
										'all' => esc_html__( 'Hide notifications from all users', 'admin-notices-manager' ),
										'hide-for-selected' => esc_html__( 'Hide notifications only from these users', 'admin-notices-manager' ),
										'show-for-selected' => esc_html__( 'Hide notifications to all users but not these', 'admin-notices-manager' ),
									),
									'sanitize' => false, // Stops default sanitization. It would break the data.
								),
							),
						),
						'styling'              => array(
							'title'  => esc_html__( 'Admin notices popup styling', 'admin-notices-manager' ),
							'text'   => esc_html__( 'How do you want ANM to look?', 'admin-notices-manager' ),
							'fields' => array(
								'popup-style'         => array(
									'title'   => esc_html__( 'Popup style', 'admin-notices-manager' ),
									'type'    => 'radio',
									'value'   => array_key_exists( 'popup-style', $options ) ? $options['popup-style'] : 'slide-in',
									'choices' => $popup_style_options,
								),
								'slide_in_background' => array(
									'title' => esc_html__( 'Slide in background colour', 'admin-notices-manager' ),
									'type'  => 'color',
									'value' => array_key_exists( 'popup-style', $options ) ? $options['popup-style'] : '#1d2327',
								),
							),
						),
						'purge'                => array(
							'title'  => esc_html__( 'Restore hidden admin notices', 'admin-notices-manager' ),
							'text'   => esc_html__( 'Reset the current list of hidden admin notices from the database so they are displayed again.', 'admin-notices-manager' ),
							'fields' => array(
								'purge_now' => array(
									'title'    => esc_html__( 'Reset list now', 'admin-notices-manager' ),
									'type'     => 'text',
									'value'    => '',
									'custom'   => true,
									'callback' => array( __CLASS__, 'render_purge_field' ),
									'text'     => '',
									'sanitize' => false,
								),
							),
						),
					),
				),
			);

			new Rational_Option_Pages( $pages );
		}

		/**
		 * Retrieve plugin settings.
		 *
		 * @return array
		 */
		public static function get_settings() {
			return \wp_parse_args(
				\get_option( self::$option_name, array() ),
				array(
					'success_level_notices'          => 'popup-only',
					'error_level_notices'            => 'popup-only',
					'warning_level_notices'          => 'popup-only',
					'information_level_notices'      => 'popup-only',
					'no_level_notices'               => 'popup-only',
					'wordpress_system_admin_notices' => 'leave',
					'popup_style'                    => 'slide-in',
					'slide_in_background'            => '#1d2327',
					'css_selector'                   => '',
					'visibility'                     => array( 'choice' => 'all' ),
				)
			);
		}

		/**
		 * Checks if hiding of notices is allowed according to the plugin settings.
		 *
		 * @return bool True if notices' hiding is allowed for current user.
		 *
		 * @since latest
		 */
		public static function notice_hiding_allowed_for_current_user() {
			if ( ! is_user_logged_in() ) {
				return false;
			}

			$settings = self::get_settings();
			if ( ! array_key_exists( 'visibility', $settings ) || ! array_key_exists( 'choice', $settings['visibility'] ) ) {
				return true;
			}

			if ( 'all' === $settings['visibility']['choice'] ) {
				return true;
			}

			if ( 'hide-for-selected' === $settings['visibility']['choice']
			&& array_key_exists( 'hide-users', $settings['visibility'] )
			&& is_array( $settings['visibility']['hide-users'] )
			&& in_array( get_current_user_id(), $settings['visibility']['hide-users'] ) ) {
				return false;
			}

			if ( 'show-for-selected' === $settings['visibility']['choice']
			&& array_key_exists( 'show-users', $settings['visibility'] )
			&& is_array( $settings['visibility']['show-users'] )
			&& ! in_array( get_current_user_id(), $settings['visibility']['show-users'] ) ) {
				return false;
			}

			return true;
		}

		/**
		 * Renders custom user visibility field(s).
		 *
		 * @param array               $field        Field data.
		 * @param string              $page_key     Settings page key.
		 * @param string              $section_key  Settings section key.
		 * @param string              $field_key    Field key.
		 * @param RationalOptionPages $option_pages Rational option pages object.
		 *
		 * @since latest
		 *
		 * phpcs:disable WordPress.Security.EscapeOutput.OutputNotEscaped
		 */
		public static function render_user_visibility_field( $field, $page_key = '', $section_key = '', $field_key = '', $option_pages = '' ) {
			if ( ! class_exists( Select2_WPWS::class, false ) ) {
				return;
			}

			echo '<fieldset><legend class="screen-reader-text">' . $field['title'] . '</legend>';

			$options        = $option_pages->get_options();
			$field['value'] = isset( $options[ $field['id'] ]['choice'] ) ? $options[ $field['id'] ]['choice'] : 'all';

			$counter = 0;
			foreach ( $field['choices'] as $value => $label ) {
				$checked = 0 === strlen( $value ) || $value === $field['value'];
				if ( isset( self::$options[ $field['id'] ] ) ) {
					$checked = $value === self::$options[ $field['id'] ];
				}

				if ( is_null( $field['value'] ) && 'all' === $value ) {
					$checked = true;
				}

				$field_name = "{$page_key}[{$field['id']}]";
				printf(
					'<label><input %s %s id="%s" name="%s" type="radio" title="%s" value="%s">&nbsp; %s</label>',
					checked( $checked, true, false ),
					! empty( $field['class'] ) ? "class='{$field['class']}'" : '',
					$field['id'] . '-' . $value,
					$field_name . '[choice]',
					$label,
					$value,
					$label
				);

				echo '<br />';

				if ( 'all' === $value ) {
					continue;
				}

				if ( 'hide-for-selected' === $value ) {
					Select2_WPWS::insert(
						self::build_user_select_params(
							$options,
							$field_name,
							$field,
							$checked,
							'hide-users'
						)
					);
				} elseif ( 'show-for-selected' === $value ) {
					Select2_WPWS::insert(
						self::build_user_select_params(
							$options,
							$field_name,
							$field,
							$checked,
							'show-users'
						)
					);
				}

				echo $counter < count( $field['choices'] ) - 1 ? '<br>' : '';
				++$counter;
			}
			echo '</fieldset>';
		}

		/**
		 * Renders custom user visibility field(s).
		 *
		 * @param array               $field        Field data.
		 * @param string              $page_key     Settings page key.
		 * @param string              $section_key  Settings section key.
		 * @param string              $field_key    Field key.
		 * @param RationalOptionPages $option_pages Rational option pages object.
		 *
		 * @since latest
		 *
		 * phpcs:disable WordPress.Security.EscapeOutput.OutputNotEscaped
		 */
		public static function render_purge_field( $field, $page_key, $section_key, $field_key, $option_pages ) {
			$nonce = wp_create_nonce( 'anm_purge_notices_nonce' );
			echo '<a href="#" class="button button-secondary" id="anm-purge-btn" data-nonce="' . esc_attr( $nonce ) . '">' . esc_html__( 'Reset', 'admin-notices-manager' ) . '</a> <span id="anm-notice-purged-text">' . esc_html__( 'Notices restored', 'admin-notices-manager' ) . '</span>';
		}

		/**
		 * Add Settings link to plugin list
		 *
		 * Add a Settings link to the options listed against this plugin
		 *
		 * @param array  $links  Current links.
		 * @param string $file   File in use.
		 *
		 * @return string          Links, now with settings added.
		 *
		 * @since 1.5.0
		 */
		public static function add_settings_link( $links, $file ) {

			if ( ADMIN_NOTICES_BASENAME === $file ) {
				$settings_link = '<a href="' . \add_query_arg(
					array(
						'page' => 'admin_notices_settings',
					),
					\admin_url( 'options-general.php' )
				) . '">' . __( 'Settings', 'admin-notices-manager' ) . '</a>';
				array_unshift( $links, $settings_link );
			}

			return $links;
		}

		/**
		 * Builds an array of parameters for the user selection form control.
		 *
		 * @param array  $options      Fields options.
		 * @param string $field_name   Field name.
		 * @param array  $field        Field data.
		 * @param bool   $checked      True if the field is checked.
		 * @param mixes  $option_value Option value.
		 *
		 * @return array
		 *
		 * @since latest.
		 */
		private static function build_user_select_params( $options, $field_name, $field, $checked, $option_value ) {
			$result = array(
				'placeholder'       => esc_html__( 'select user(s)', 'admin-notices-manager' ),
				'name'              => $field_name . '[' . $option_value . '][]',
				'width'             => 500,
				'data-type'         => 'user',
				'multiple'          => true,
				'extra_js_callback' => function ( $element_id ) {
					echo 'window.anm_settings.append_select2_events( s2 );';
				},
			);

			if ( $checked ) {
				$result['selected'] = $options[ $field['id'] ][ $option_value ];
			}

			return $result;
		}
	}
}