'name'    => 'fuzziness_enabled_demo',
                'label'   => __( 'Fuzzy matching', 'ajax-search-for-woocommerce' ),
                'desc'    => $fuzzinesText1 . ' ' . $fuzzinesText2,
                'class'   => 'dgwt-wcas-premium-only',
                'type'    => 'select',
                'options' => array(
                    'off'    => __( '-- Disabled', 'ajax-search-for-woocommerce' ),
                    'soft'   => __( 'Soft', 'ajax-search-for-woocommerce' ),
                    'normal' => __( 'Normal', 'ajax-search-for-woocommerce' ),
                    'hard'   => __( 'Hard', 'ajax-search-for-woocommerce' ),
                ),
                'default' => 'off',
            );
            // Indexer feature preview
            $settingsFields['dgwt_wcas_performance'][11] = array(
                'name'  => 'search_engine_build',
                'label' => __( 'Index status', 'ajax-search-for-woocommerce' ),
                'type'  => 'desc',
                'desc'  => Helpers::indexerDemoHtml(),
                'class' => 'dgwt-wcas-premium-only wcas-opt-tntsearch',
            );
        }
        // Show "Search in GUID" option if there are products with these values.
        if ( Helpers::isSettingsPage() && Helpers::productsUseGlobalUniqueId() ) {
            $settingsFields['dgwt_wcas_search'][160]['class'] = str_replace( 'dgwt-wcas-hidden', '', $settingsFields['dgwt_wcas_search'][160]['class'] );
        }
        if ( !dgoraAsfwFs()->is_premium() ) {
            foreach ( $settingsFields as $key => $sections ) {
                foreach ( $sections as $keyl2 => $option ) {
                    if ( self::isOptionPremium( $option ) ) {
                        $settingsFields[$key][$keyl2]['label'] = Helpers::getSettingsProLabel( $option['label'], 'option-label' );
                    }
                }
            }
        }
        $settingsFields = apply_filters( 'dgwt/wcas/settings', $settingsFields );
        // Set defaults
        foreach ( $settingsFields as $sections ) {
            foreach ( $sections as $option ) {
                if ( !empty( $option['name'] ) ) {
                    $this->defaults[$option['name']] = ( isset( $option['default'] ) ? $option['default'] : '' );
                }
            }
        }
        foreach ( $settingsFields as $key => $sections ) {
            ksort( $settingsFields[$key] );
        }
        return $settingsFields;
    }

    /*
     * Option value
     *
     * @param string $option_key
     * @param string $default default value if option not exist
     *
     * @return string
     */
    public function getOption( $option_key, $default = '' ) {
        $value = '';
        if ( is_string( $option_key ) && !empty( $option_key ) ) {
            if ( !empty( $this->settingsCache ) ) {
                $settings = $this->settingsCache;
            } else {
                $settings = get_option( $this->settingSlug );
            }
            if ( !empty( $settings ) && is_array( $settings ) ) {
                $this->settingsCache = $settings;
                if ( array_key_exists( $option_key, $settings ) ) {
                    $value = $settings[$option_key];
                } else {
                    // Catch default
                    if ( empty( $default ) ) {
                        foreach ( $this->defaults as $key => $defaultValue ) {
                            if ( $key === $option_key ) {
                                $value = $defaultValue;
                            }
                        }
                    }
                }
            }
        }
        if ( $value === '' && !empty( $default ) ) {
            $value = $default;
        }
        $value = apply_filters( 'dgwt/wcas/settings/load_value', $value, $option_key );
        $value = apply_filters( 'dgwt/wcas/settings/load_value/key=' . $option_key, $value );
        return $value;
    }

    /**
     * Update option
     *
     * @param string $optionKey
     * @param string $value
     *
     * @return bool
     */
    public function updateOpt( $optionKey, $value = '' ) {
        $updated = false;
        if ( is_string( $optionKey ) && !empty( $optionKey ) ) {
            $settings = get_option( $this->settingSlug );
            $value = apply_filters( 'dgwt/wcas/settings/update_value', $value, $optionKey );
            $value = apply_filters( 'dgwt/wcas/settings/update_value/key=' . $optionKey, $value );
            $canUpdate = false;
            if ( array_key_exists( $optionKey, $this->defaults ) ) {
                $settings[$optionKey] = $value;
                $canUpdate = true;
            }
            if ( $canUpdate ) {
                $updated = update_option( $this->settingSlug, $settings );
                if ( $updated ) {
                    $this->settingsCache = array();
                    do_action( 'dgwt/wcas/settings/option_updated', $optionKey, $value );
                }
            }
        }
        return $updated;
    }

    /**
     * Handles output of the settings
     */
    public static function output() {
        $settings = DGWT_WCAS()->settings->settingsApi;
        include_once DGWT_WCAS_DIR . 'partials/admin/settings.php';
    }

    /**
     * Restore default option value
     *
     * @param mixed $value
     * @param mixed $default
     * @param array $option
     *
     * @return mixed
     */
    public function restoreDefaultValueForFreePlan( $value, $default, $option ) {
        if ( !dgoraAsfwFs()->is_premium() ) {
            if ( self::isOptionPremium( $option ) ) {
                $value = $default;
            }
        }
        return $value;
    }

    /**
     * Check if user can see advanced settings
     *
     * @return bool
     */
    public function canSeeAdvSettings() {
        $canSee = false;
        if ( is_bool( $this->canSeeAdvSettings ) ) {
            $canSee = $this->canSeeAdvSettings;
        } else {
            $settings = get_option( 'dgwt_wcas_settings_show_advanced' );
            if ( !empty( $settings ) ) {
                if ( $settings === 'on' ) {
                    $canSee = true;
                } elseif ( $settings === 'off' ) {
                    $canSee = false;
                }
                $this->canSeeAdvSettings = $canSee;
            }
        }
        return $canSee;
    }

    /**
     * Toggle visibility of advanced settings
     * Ajax endpoint
     *
     * @return void
     */
    public function toggleAdvancedSettings() {
        if ( !current_user_can( ( Helpers::shopManagerHasAccess() ? 'manage_woocommerce' : 'manage_options' ) ) ) {
            wp_die( -1, 403 );
        }
        check_ajax_referer( 'dgwt_wcas_advanced_options_switch' );
        $show = ( !empty( $_GET['adv_settings_value'] ) && $_GET['adv_settings_value'] === 'show' ? 'on' : 'off' );
        update_option( 'dgwt_wcas_settings_show_advanced', $show );
        wp_send_json_success();
    }

    /**
     * Check if a option is premium
     *
     * @param array $option
     *
     * @return bool
     */
    public static function isOptionPremium( $option ) {
        $is_premium = false;
        if ( !empty( $option['class'] ) && strpos( $option['class'], 'dgwt-wcas-premium-only' ) !== false ) {
            $is_premium = true;
        }
        return $is_premium;
    }

    /**
     * Force values of some settings if they depend on other settings
     *
     * @return void
     */
    private function dependentOptions() {
        add_filter( 'dgwt/wcas/settings/section=form', function ( $settings ) {
            $text = __( "You have selected the <b>Appearance -> Style -> Pirx</b> option. Pirx style forces a submit button to be enabled. You can find this option a few rows below. That's why this option is blocked.", 'ajax-search-for-woocommerce' );
            $settings[400]['label'] = Helpers::createOverrideTooltip( 'ovtt-pirx-submit-button', '<p>' . $text . '</p>' ) . $settings[400]['label'];
            return $settings;
        } );
        // Pirx or Pirx compact style - force options for submit button.
        // Mark that the value of the option "mobile overlay" is forced.
        if ( in_array( $this->getOption( 'search_style' ), array('pirx', 'pirx-compact') ) ) {
            //Submit button
            add_filter( 'dgwt/wcas/settings/load_value/key=show_submit_button', function () {
                return 'on';
            } );
            add_filter( 'dgwt/wcas/settings/section=form', function ( $settings ) {
                $settings[400]['disabled'] = true;
                return $settings;
            } );
            // Value of submit button
            add_filter( 'dgwt/wcas/settings/load_value/key=search_submit_text', function () {
                return '';
            } );
            add_filter( 'dgwt/wcas/settings/section=form', function ( $settings ) {
                $settings[500]['disabled'] = true;
                $settings[500]['class'] = $settings[500]['class'] . ' dgwt-wcas-hidden';
                return $settings;
            } );
            // Submit background color
            add_filter( 'dgwt/wcas/settings/load_value/key=bg_submit_color', function () {
                return '';
            } );
            add_filter( 'dgwt/wcas/settings/section=form', function ( $settings ) {
                $settings[510]['disabled'] = true;
                $settings[510]['class'] = $settings[510]['class'] . ' dgwt-wcas-hidden';
                return $settings;
            } );
        }
    }

    /**
     * Clear settings cache
     */
    public function clearCache() {
        $this->settingsCache = array();
    }

}