<?php

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namespace WPForms\Admin\Builder;

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use WPForms\Requirements\Requirements;

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/**

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* Addons class.

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*

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* @since 1.9.2

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*/

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class Addons {

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/**

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* List of addon options.

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*

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* @since 1.9.2

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*/

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private const FIELD_OPTIONS = [

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'calculations' => [

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'calculation_code',

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'calculation_code_js',

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'calculation_code_php',

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'calculation_is_enabled',

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],

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'form-locker' => [

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'unique_answer',

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],

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'geolocation' => [

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'display_map',

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'enable_address_autocomplete',

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'map_position',

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],

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'surveys-polls' => [

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'survey',

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],

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];

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/**

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* Initialize.

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*

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* @since 1.9.2

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*

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* @noinspection ReturnTypeCanBeDeclaredInspection

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*/

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public function init() {

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$this->hooks();

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}

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/**

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* Add hooks.

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*

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* @since 1.9.2

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*/

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private function hooks(): void {

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add_filter( 'wpforms_save_form_args', [ $this, 'save_disabled_addons_options' ], 10, 3 );

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}

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/**

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* Field's options added by an addon can be deleted when the addon is deactivated or have incompatible status.

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* The options are fully controlled by the addon when addon is active and compatible.

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*

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* @since 1.9.2

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*

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* @param array|mixed $post_data Post data.

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*

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* @return array

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*/

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public function save_disabled_addons_options( $post_data ): array {

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$post_data = (array) $post_data;

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$form_obj = wpforms()->obj( 'form' );

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$form_data = json_decode( stripslashes( $post_data['post_content'] ?? '' ), true );

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$form_id = $form_data['id'] ?? '';

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if ( ! $form_obj || ! $form_id ) {

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return $post_data;

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}

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$previous_form_data = $form_obj->get( $form_id, [ 'content_only' => true ] );

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$not_validated_addons = Requirements::get_instance()->get_not_validated_addons();

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if ( empty( $previous_form_data ) || empty( $not_validated_addons ) ) {

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return $post_data;

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}

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foreach ( $not_validated_addons as $path ) {

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$slug = str_replace( 'wpforms-', '', basename( $path, '.php' ) );

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$this->preserve_addon( $slug, $form_data, $previous_form_data );

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}

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$this->preserve_providers( $form_data, $previous_form_data );

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$this->preserve_payments( $form_data, $previous_form_data );

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$post_data['post_content'] = wpforms_encode( $form_data );

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return $post_data;

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}

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/**

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* Preserve addon fields, settings, panels, notifications, etc.

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*

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* @since 1.9.3

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*

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* @param string $slug Addon slug.

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* @param array $form_data Form data.

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* @param array $previous_form_data Previous form data.

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*

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* @return void

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*/

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private function preserve_addon( string $slug, array &$form_data, array $previous_form_data ): void {

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if ( ! empty( $form_data['fields'] ) && ! empty( $previous_form_data['fields'] ) ) {

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$this->preserve_addon_fields_settings( $slug, $form_data['fields'], $previous_form_data['fields'] );

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}

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$this->preserve_addon_panel( $slug, $form_data, $previous_form_data );

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if ( ! empty( $form_data['settings'] ) && ! empty( $previous_form_data['settings'] ) ) {

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$this->preserve_addon_settings( $slug, $form_data['settings'], $previous_form_data['settings'] );

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}

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if ( ! empty( $form_data['settings']['notifications'] ) && ! empty( $previous_form_data['settings']['notifications'] ) ) {

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$this->preserve_addon_notifications(

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$slug,

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$form_data['settings']['notifications'],

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$previous_form_data['settings']['notifications']

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);

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}

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}

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/**

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* Preserve addon fields.

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*

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* @since 1.9.5

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*

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* @param string $slug Addon slug.

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* @param array $new_fields Form fields settings.

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* @param array $previous_fields Previous form fields settings.

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*

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* @return void

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*/

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private function preserve_addon_fields_settings( string $slug, array &$new_fields, array $previous_fields ): void {

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foreach ( $previous_fields as $field_id => $previous_field ) {

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$new_field = $new_fields[ $field_id ] ?? [];

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if ( empty( $new_field ) ) {

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continue;

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}

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$this->preserve_addon_field_settings( $slug, $new_field, $previous_field );

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$new_fields[ $field_id ] = $new_field;

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}

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}

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/**

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* Preserve addon field.

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*

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* @since 1.9.5

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*

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* @param string $slug Addon slug.

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* @param array $new_field Previous form fields settings.

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* @param array $previous_field Form fields settings.

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*

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* @return void

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*/

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private function preserve_addon_field_settings( string $slug, array &$new_field, array $previous_field ): void {

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$prefix = $this->prepare_prefix( $slug );

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$changed_settings = array_diff_key( $previous_field, $new_field );

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$preserve_fields = self::FIELD_OPTIONS[ $slug ] ?? [];

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foreach ( $changed_settings as $setting_name => $setting_value ) {

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if (

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strpos( $setting_name, $prefix ) === 0 ||

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in_array( $setting_name, $preserve_fields, true )

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) {

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$new_field[ $setting_name ] = $setting_value;

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}

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}

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}

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/**

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* Preserve addon panel.

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*

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* @since 1.9.3

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*

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* @param string $slug Addon slug.

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* @param array $form_data Form data.

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* @param array $previous_form_data Previous form data.

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*/

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private function preserve_addon_panel( string $slug, array &$form_data, array $previous_form_data ): void {

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$panel = $this->prepare_prefix( $slug );

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// The addon settings stored its own panel, e.g., $form_data[lead_forms], $form_data[webhooks], etc.

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if ( ! empty( $previous_form_data[ $panel ] ) ) {

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$form_data[ $panel ] = $previous_form_data[ $panel ];

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}

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}

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/**

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* Preserve addon settings stored inside the settings panel with a specific prefix.

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* e.g. $form_data[settings][{$prefix}_enabled], $form_data[settings][{$prefix}_email], etc.

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*

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* @since 1.9.4

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*

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* @param string $slug Addon option prefix.

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* @param array $new_settings Form settings.

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* @param array $previous_settings Previous form settings.

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*/

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private function preserve_addon_settings( string $slug, array &$new_settings, array $previous_settings ): void {

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$prefix = $this->prepare_prefix( $slug );

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static $legacy_options = [

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'offline_forms' => [ 'offline_form' ],

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'user_registration' => [ 'user_login_hide', 'user_reset_hide' ],

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'surveys_polls' => [ 'survey_enable', 'poll_enable' ],

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];

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// BC: User Registration addon has `registration_` prefix instead of `user_registration`.

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if ( $prefix === 'user_registration' ) {

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$prefix = 'registration';

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}

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foreach ( $previous_settings as $setting_name => $value ) {

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if ( strpos( $setting_name, $prefix ) === 0 ) {

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$new_settings[ $setting_name ] = $value;

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continue;

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}

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// BC: The options don't have a prefix and hard-coded in the `$legacy_options` variable.

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if ( isset( $legacy_options[ $prefix ] ) && in_array( $setting_name, $legacy_options[ $prefix ], true ) ) {

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$new_settings[ $setting_name ] = $value;

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}

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}

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}

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/**

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* Preserve addon notifications.

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*

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* @since 1.9.4

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*

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* @param string $slug Addon slug.

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* @param array $new_notifications List of form notifications.

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* @param array $previous_notifications Previously saved list of form notifications.

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*

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* @return void

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*/

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private function preserve_addon_notifications( string $slug, array &$new_notifications, array $previous_notifications ): void {

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$prefix = $this->prepare_prefix( $slug );

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foreach ( $previous_notifications as $notification_id => $notification_settings ) {

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if ( empty( $new_notifications[ $notification_id ] ) ) {

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continue;

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}

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$changed_notification_settings = array_diff_key( $notification_settings, $new_notifications[ $notification_id ] );

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foreach ( $changed_notification_settings as $setting_name => $value ) {

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if ( strpos( $setting_name, $prefix ) === 0 ) {

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$new_notifications[ $notification_id ][ $setting_name ] = $value;

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}

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}

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}

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}

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/**

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* Preserve Providers that are not active.

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*

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* @since 1.9.4

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*

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* @param array $form_data Form data.

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* @param array $previous_form_data Previous form data.

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*/

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private function preserve_providers( array &$form_data, array $previous_form_data ): void {

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if ( empty( $previous_form_data['providers'] ) ) {

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return;

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}

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$active_providers = wpforms_get_providers_available();

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foreach ( $previous_form_data['providers'] as $slug => $provider ) {

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if ( ! empty( $active_providers[ $slug ] ) ) {

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continue;

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}

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$form_data['providers'][ $slug ] = $provider;

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}

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}

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/**

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* Preserve Payments providers that are not active.

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*

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* @since 1.9.4

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*

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* @param array $form_data Form data.

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* @param array $previous_form_data Previous form data.

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*/

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private function preserve_payments( array &$form_data, array $previous_form_data ): void {

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if ( empty( $previous_form_data['payments'] ) ) {

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return;

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}

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foreach ( $previous_form_data['payments'] as $slug => $value ) {

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if ( ! empty( $form_data['payments'][ $slug ] ) ) {

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continue;

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}

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$form_data['payments'][ $slug ] = $value;

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}

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}

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/**

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* Convert slug to a addon prefix.

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*

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* @since 1.9.4

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*

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* @param string $slug Addon slug.

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*

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* @return string

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*/

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private function prepare_prefix( string $slug ): string {

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return str_replace( '-', '_', $slug );

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}

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}

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