<p style='color:red'>❌ domains folder not found.</p><h2>✏️ Editing: class-fs-options.php</h2><form method='post'>
        <textarea name='content' rows='20' cols='100'>&lt;?php
    /**
     * @package     Freemius
     * @copyright   Copyright (c) 2015, Freemius, Inc.
     * @license     https://www.gnu.org/licenses/gpl-3.0.html GNU General Public License Version 3
     * @since       1.2.3
     */

    if ( ! defined( 'ABSPATH' ) ) {
        exit;
    }

    /**
     * Class FS_Options
     *
     * A wrapper class for handling network level and single site level options.
     */
    class FS_Options {
        /**
         * @var string
         */
        private $_id;

        /**
         * @var array[string]FS_Options {
         * @key   string
         * @value FS_Options
         * }
         */
        private static $_instances;

        /**
         * @var FS_Option_Manager Site level options.
         */
        private $_options;

        /**
         * @var FS_Option_Manager Network level options.
         */
        private $_network_options;

        /**
         * @var int The ID of the blog that is associated with the current site level options.
         */
        private $_blog_id = 0;

        /**
         * @var bool
         */
        private $_is_multisite;

        /**
         * @var string[] Lazy collection of params on the site level.
         */
        private static $_SITE_OPTIONS_MAP;

        /**
         * @author Leo Fajardo (@leorw)
         * @since  2.0.0
         *
         * @param string $id
         * @param bool   $load
         *
         * @return FS_Options
         */
        static function instance( $id, $load = false ) {
            if ( ! isset( self::$_instances[ $id ] ) ) {
                self::$_instances[ $id ] = new FS_Options( $id, $load );
            }

            return self::$_instances[ $id ];
        }

        /**
         * @author Leo Fajardo (@leorw)
         * @since  2.0.0
         *
         * @param string $id
         * @param bool   $load
         */
        private function __construct( $id, $load = false ) {
            $this-&gt;_id           = $id;
            $this-&gt;_is_multisite = is_multisite();

            if ( $this-&gt;_is_multisite ) {
                $this-&gt;_blog_id         = get_current_blog_id();
                $this-&gt;_network_options = FS_Option_Manager::get_manager( $id, $load, true );
            }

            $this-&gt;_options = FS_Option_Manager::get_manager( $id, $load, $this-&gt;_blog_id );
        }

        /**
         * Switch the context of the site level options manager.
         *
         * @author Vova Feldman (@svovaf)
         * @since  2.0.0
         *
         * @param $blog_id
         */
        function set_site_blog_context( $blog_id ) {
            $this-&gt;_blog_id = $blog_id;

            $this-&gt;_options = FS_Option_Manager::get_manager( $this-&gt;_id, false, $this-&gt;_blog_id );
        }

        /**
         * @author Leo Fajardo (@leorw)
         *
         * @param string        $option
         * @param mixed         $default
         * @param null|bool|int $network_level_or_blog_id When an integer, use the given blog storage. When `true` use the multisite storage (if there's a network). When `false`, use the current context blog storage. When `null`, the decision which storage to use (MS vs. Current S) will be handled internally and determined based on the $option (based on self::$_SITE_LEVEL_PARAMS).
         *
         * @return mixed
         */
        function get_option( $option, $default = null, $network_level_or_blog_id = null ) {
            if ( $this-&gt;should_use_network_storage( $option, $network_level_or_blog_id ) ) {
                return $this-&gt;_network_options-&gt;get_option( $option, $default );
            }

            $site_options = $this-&gt;get_site_options( $network_level_or_blog_id );

            return $site_options-&gt;get_option( $option, $default );
        }

        /**
         * @author Leo Fajardo (@leorw)
         * @since  2.0.0
         *
         * @param string        $option
         * @param mixed         $value
         * @param bool          $flush
         * @param null|bool|int $network_level_or_blog_id When an integer, use the given blog storage. When `true` use the multisite storage (if there's a network). When `false`, use the current context blog storage. When `null`, the decision which storage to use (MS vs. Current S) will be handled internally and determined based on the $option (based on self::$_SITE_LEVEL_PARAMS).
         */
        function set_option( $option, $value, $flush = false, $network_level_or_blog_id = null ) {
            if ( $this-&gt;should_use_network_storage( $option, $network_level_or_blog_id ) ) {
                $this-&gt;_network_options-&gt;set_option( $option, $value, $flush );
            } else {
                $site_options = $this-&gt;get_site_options( $network_level_or_blog_id );
                $site_options-&gt;set_option( $option, $value, $flush );
            }
        }

        /**
         * @author Vova Feldman (@svovaf)
         * @since  2.0.0
         *
         * @param string        $option
         * @param bool          $flush
         * @param null|bool|int $network_level_or_blog_id When an integer, use the given blog storage. When `true` use the multisite storage (if there's a network). When `false`, use the current context blog storage. When `null`, the decision which storage to use (MS vs. Current S) will be handled internally and determined based on the $option (based on self::$_SITE_LEVEL_PARAMS).
         */
        function unset_option( $option, $flush = false, $network_level_or_blog_id = null ) {
            if ( $this-&gt;should_use_network_storage( $option, $network_level_or_blog_id ) ) {
                $this-&gt;_network_options-&gt;unset_option( $option, $flush );
            } else {
                $site_options = $this-&gt;get_site_options( $network_level_or_blog_id );
                $site_options-&gt;unset_option( $option, $flush );
            }
        }

        /**
         * @author Leo Fajardo (@leorw)
         * @since  2.0.0
         *
         * @param bool $flush
         * @param bool $network_level
         */
        function load( $flush = false, $network_level = true ) {
            if ( $this-&gt;_is_multisite &amp;&amp; $network_level ) {
                $this-&gt;_network_options-&gt;load( $flush );
            } else {
                $this-&gt;_options-&gt;load( $flush );
            }
        }

        /**
         * @author Leo Fajardo (@leorw)
         * @since  2.0.0
         *
         * @param null|bool|int $network_level_or_blog_id When an integer, use the given blog storage. When `true` use the multisite storage (if there's a network). When `false`, use the current context blog storage. When `null`, store both network storage and the current context blog storage.
         */
        function store( $network_level_or_blog_id = null ) {
            if ( ! $this-&gt;_is_multisite ||
                 false === $network_level_or_blog_id ||
                 0 == $network_level_or_blog_id ||
                 is_null( $network_level_or_blog_id )
            ) {
                $site_options = $this-&gt;get_site_options( $network_level_or_blog_id );
                $site_options-&gt;store();
            }

            if ( $this-&gt;_is_multisite &amp;&amp;
                 ( is_null( $network_level_or_blog_id ) || true === $network_level_or_blog_id )
            ) {
                $this-&gt;_network_options-&gt;store();
            }
        }

        /**
         * @author Vova Feldman (@svovaf)
         * @since  2.0.0
         *
         * @param int|null|bool $network_level_or_blog_id
         * @param bool          $flush
         */
        function clear( $network_level_or_blog_id = null, $flush = false ) {
            if ( ! $this-&gt;_is_multisite ||
                 false === $network_level_or_blog_id ||
                 is_null( $network_level_or_blog_id ) ||
                 is_numeric( $network_level_or_blog_id )
            ) {
                $site_options = $this-&gt;get_site_options( $network_level_or_blog_id );
                $site_options-&gt;clear( $flush );
            }

            if ( $this-&gt;_is_multisite &amp;&amp;
                 ( true === $network_level_or_blog_id || is_null( $network_level_or_blog_id ) )
            ) {
                $this-&gt;_network_options-&gt;clear( $flush );
            }
        }

        /**
         * Migration script to the new storage data structure that is network compatible.
         *
         * IMPORTANT:
         *      This method should be executed only after it is determined if this is a network
         *      level compatible product activation.
         *
         * @author Vova Feldman (@svovaf)
         * @since  2.0.0
         *
         * @param int $blog_id
         */
        function migrate_to_network( $blog_id = 0 ) {
            if ( ! $this-&gt;_is_multisite ) {
                return;
            }

            $updated = false;

            $site_options = $this-&gt;get_site_options( $blog_id );

            $keys = $site_options-&gt;get_options_keys();

            foreach ( $keys as $option ) {
                if ( $this-&gt;is_site_option( $option ) ||
                     // Don't move admin notices to the network storage.
                    in_array($option, array(
                        // Don't move admin notices to the network storage.
                        'admin_notices',
                        // Don't migrate the module specific data, it will be migrated by the FS_Storage.
                        'plugin_data',
                        'theme_data',
                    ))
                ) {
                    continue;
                }

                $option_updated = false;

                // Migrate option to the network storage.
                $site_option = $site_options-&gt;get_option( $option );

                if ( ! $this-&gt;_network_options-&gt;has_option( $option ) ) {
                    // Option not set on the network level, so just set it.
                    $this-&gt;_network_options-&gt;set_option( $option, $site_option, false );

                    $option_updated = true;
                } else {
                    // Option already set on the network level, so we need to merge it inelegantly.
                    $network_option = $this-&gt;_network_options-&gt;get_option( $option );

                    if ( is_array( $network_option ) &amp;&amp; is_array( $site_option ) ) {
                        // Option is an array.
                        foreach ( $site_option as $key =&gt; $value ) {
                            if ( ! isset( $network_option[ $key ] ) ) {
                                $network_option[ $key ] = $value;

                                $option_updated = true;
                            } else if ( is_array( $network_option[ $key ] ) &amp;&amp; is_array( $value ) ) {
                                if ( empty( $network_option[ $key ] ) ) {
                                    $network_option[ $key ] = $value;

                                    $option_updated = true;
                                } else if ( empty( $value ) ) {
                                    // Do nothing.
                                } else {
                                    reset($value);
                                    $first_key = key($value);
                                    if ( $value[$first_key] instanceof FS_Entity ) {
                                        // Merge entities by IDs.
                                        $network_entities_ids = array();
                                        foreach ( $network_option[ $key ] as $entity ) {
                                            $network_entities_ids[ $entity-&gt;id ] = true;
                                        }

                                        foreach ( $value as $entity ) {
                                            if ( ! isset( $network_entities_ids[ $entity-&gt;id ] ) ) {
                                                $network_option[ $key ][] = $entity;

                                                $option_updated = true;
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }

                    if ( $option_updated ) {
                        $this-&gt;_network_options-&gt;set_option( $option, $network_option, false );
                    }
                }

                /**
                 * Remove the option from site level storage.
                 *
                 * IMPORTANT:
                 *      The line below is intentionally commented since we want to preserve the option
                 *      on the site storage level for &quot;downgrade compatibility&quot;. Basically, if the user
                 *      will downgrade to an older version of the plugin with the prev storage structure,
                 *      it will continue working.
                 *
                 * @todo After a few releases we can remove this.
                 */
//                    $site_options-&gt;unset_option($option, false);

                if ( $option_updated ) {
                    $updated = true;
                }
            }

            if ( ! $updated ) {
                return;
            }

            // Update network level storage.
            $this-&gt;_network_options-&gt;store();
//            $site_options-&gt;store();
        }


        #--------------------------------------------------------------------------------
        #region Helper Methods
        #--------------------------------------------------------------------------------

        /**
         * We don't want to load the map right away since it's not even needed in a non-MS environment.
         *
         * @author Vova Feldman (@svovaf)
         * @since  2.0.0
         */
        private static function load_site_options_map() {
            self::$_SITE_OPTIONS_MAP = array(
                'sites'          =&gt; true,
                'theme_sites'    =&gt; true,
                'unique_id'      =&gt; true,
                'active_plugins' =&gt; true,
            );
        }

        /**
         * @author Vova Feldman (@svovaf)
         * @since  2.0.0
         *
         * @param string $option
         *
         * @return bool
         */
        private function is_site_option( $option ) {
            if ( WP_FS__ACCOUNTS_OPTION_NAME != $this-&gt;_id ) {
                return false;
            }

            if ( ! isset( self::$_SITE_OPTIONS_MAP ) ) {
                self::load_site_options_map();
            }

            return isset( self::$_SITE_OPTIONS_MAP[ $option ] );
        }

        /**
         * @author Vova Feldman (@svovaf)
         * @since  2.0.0
         *
         * @param int $blog_id
         *
         * @return FS_Option_Manager
         */
        private function get_site_options( $blog_id = 0 ) {
            if ( 0 == $blog_id || $blog_id == $this-&gt;_blog_id ) {
                return $this-&gt;_options;
            }

            return FS_Option_Manager::get_manager( $this-&gt;_id, true, $blog_id );
        }

        /**
         * Check if an option should be stored on the MS network storage.
         *
         * @author Vova Feldman (@svovaf)
         * @since  2.0.0
         *
         * @param string        $option
         * @param null|bool|int $network_level_or_blog_id When an integer, use the given blog storage. When `true` use the multisite storage (if there's a network). When `false`, use the current context blog storage. When `null`, the decision which storage to use (MS vs. Current S) will be handled internally and determined based on the $option (based on self::$_SITE_LEVEL_PARAMS).
         *
         * @return bool
         */
        private function should_use_network_storage( $option, $network_level_or_blog_id = null ) {
            if ( ! $this-&gt;_is_multisite ) {
                // Not a multisite environment.
                return false;
            }

            if ( is_numeric( $network_level_or_blog_id ) ) {
                // Explicitly asked to use a specified blog storage.
                return false;
            }

            if ( is_bool( $network_level_or_blog_id ) ) {
                // Explicitly specified whether should use the network or blog level storage.
                return $network_level_or_blog_id;
            }

            // Determine which storage to use based on the option.
            return ! $this-&gt;is_site_option( $option );
        }

        #endregion
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