<?php

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namespace WPForms\Integrations\Gutenberg;

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use WPForms\Helpers\File;

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/**

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* Rest API for Gutenberg block.

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*

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* @since 1.8.8

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*/

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abstract class ThemesData {

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/**

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* Custom themes JSON file path.

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*

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* Relative to `wp-content/uploads/wpforms` directory.

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*

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* @since 1.8.8

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*

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* @var string

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*/

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const THEMES_CUSTOM_JSON_PATH = 'themes/themes-custom.json';

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/**

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* WPForms themes JSON file path for lite version.

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*

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* Relative to WPForms plugin directory.

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*

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* @since 1.8.8

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*

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* @var string

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*/

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const THEMES_WPFORMS_JSON_PATH_LITE = 'assets/lite/js/integrations/gutenberg/themes.json';

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/**

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* Custom themes file path.

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*

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* @since 1.8.8

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*

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* @var string

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*/

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private $custom_themes_file_path;

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/**

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* WPForms themes data.

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*

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* @since 1.8.8

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*

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* @var array

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*/

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protected $wpforms_themes;

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/**

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* Custom themes data.

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*

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* @since 1.8.8

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*

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* @var array

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*/

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private $custom_themes;

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/**

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* Return WPForms themes.

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*

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* @since 1.8.8

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*

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* @return array

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*/

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public function get_wpforms_themes(): array {

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if ( $this->wpforms_themes !== null ) {

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return $this->wpforms_themes;

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}

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$themes_json = File::get_contents( WPFORMS_PLUGIN_DIR . static::THEMES_WPFORMS_JSON_PATH ) ?? '{}';

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$themes = json_decode( $themes_json, true );

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$this->wpforms_themes = ! empty( $themes ) ? $themes : [];

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return $this->wpforms_themes;

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}

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/**

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* Return custom themes.

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*

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* @since 1.8.8

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*

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* @return array

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*/

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public function get_custom_themes(): array {

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if ( $this->custom_themes !== null ) {

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return $this->custom_themes;

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}

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$themes_json = File::get_contents( $this->get_custom_themes_file_path() ) ?? '{}';

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$themes = json_decode( $themes_json, true );

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$this->custom_themes = ! empty( $themes ) ? $themes : [];

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return $this->custom_themes;

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}

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/**

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* Return theme data.

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*

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* @since 1.8.8

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*

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* @param string $slug Theme slug.

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*

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* @return array|null

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*/

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public function get_theme( string $slug ) {

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$wpforms = $this->get_wpforms_themes();

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

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return $wpforms[ $slug ];

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}

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$custom = $this->get_custom_themes();

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

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return $custom[ $slug ];

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}

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return null;

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}

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/**

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* Get custom themes json file path.

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*

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* @since 1.8.8

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*

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* @return string|bool File path OR false in the case of permissions error.

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*/

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public function get_custom_themes_file_path() {

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// Caching the file path in the class property.

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if ( $this->custom_themes_file_path !== null ) {

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return $this->custom_themes_file_path;

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}

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// Determine custom themes file path.

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$upload_dir = wpforms_upload_dir();

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$upload_path = ! empty( $upload_dir['path'] ) ? $upload_dir['path'] : WP_CONTENT_DIR . 'uploads/wpforms/';

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$upload_path = trailingslashit( wp_normalize_path( $upload_path ) );

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$file_path = $upload_path . self::THEMES_CUSTOM_JSON_PATH;

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$dirname = dirname( $file_path );

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// If the directory doesn't exist, create it. Also, check for permissions.

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if ( ! wp_mkdir_p( $dirname ) ) {

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$file_path = false;

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}

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$this->custom_themes_file_path = $file_path;

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return $file_path;

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}

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/**

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* Sanitize custom themes data.

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*

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* @since 1.8.8

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*

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* @param array $custom_themes Custom themes data.

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*

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* @return array

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*/

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private function sanitize_custom_themes_data( array $custom_themes ): array {

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$wpforms = $this->get_wpforms_themes();

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$sanitized_themes = [];

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// Get the default theme settings.

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// If there are no default settings, use an empty array. This should never happen, but just in case.

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$default_theme = $wpforms['default'] ?? [];

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$default_theme['settings'] = $default_theme['settings'] ?? [];

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foreach ( $custom_themes as $slug => $theme ) {

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$slug = sanitize_key( $slug );

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$sanitized_themes[ $slug ]['name'] = sanitize_text_field( $theme['name'] ?? 'Copy of ' . $default_theme['name'] );

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// Fill in missed settings keys with default values.

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$settings = wp_parse_args( $theme['settings'] ?? [], $default_theme['settings'] );

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// Make sure we will save only settings that are present in the default theme.

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$settings = array_intersect_key( $settings, $default_theme['settings'] );

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// Sanitize settings.

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$sanitized_themes[ $slug ]['settings'] = array_map( 'sanitize_text_field', $settings );

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}

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return $sanitized_themes;

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}

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/**

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* Update custom themes data.

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*

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* @since 1.8.8

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*

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* @param array $custom_themes Custom themes data.

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*

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* @return bool

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*/

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public function update_custom_themes_file( array $custom_themes ): bool {

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// Sanitize custom themes data to be saved.

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$sanitized_themes = $this->sanitize_custom_themes_data( $custom_themes );

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// Determine custom themes file path.

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$themes_file = $this->get_custom_themes_file_path();

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$json_data = ! empty( $sanitized_themes ) ? wp_json_encode( $sanitized_themes ) : '{}';

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// Save custom themes data and return the result.

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return File::put_contents( $themes_file, $json_data );

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}

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}

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