ray of settings.
	 *
	 *     @type string $code       Currency code.
	 *     @type string $precision  Number of decimals.
	 *     @type string $symbol     Symbol for currency.
	 * }
	 */
	public static function get_currency_settings() {
		$code = get_woocommerce_currency();

		return apply_filters(
			'wc_currency_settings',
			array(
				'code'              => $code,
				'precision'         => wc_get_price_decimals(),
				'symbol'            => html_entity_decode( get_woocommerce_currency_symbol( $code ) ),
				'symbolPosition'    => get_option( 'woocommerce_currency_pos' ),
				'decimalSeparator'  => wc_get_price_decimal_separator(),
				'thousandSeparator' => wc_get_price_thousand_separator(),
				'priceFormat'       => html_entity_decode( get_woocommerce_price_format() ),
			)
		);
	}

	/**
	 * Registers WooCommerce specific user data to the WordPress user API.
	 */
	public static function register_user_data() {
		register_rest_field(
			'user',
			'is_super_admin',
			array(
				'get_callback' => function() {
					return is_super_admin();
				},
				'schema'       => null,
			)
		);
		register_rest_field(
			'user',
			'woocommerce_meta',
			array(
				'get_callback'    => array( __CLASS__, 'get_user_data_values' ),
				'update_callback' => array( __CLASS__, 'update_user_data_values' ),
				'schema'          => null,
			)
		);
	}

	/**
	 * For all the registered user data fields (  Loader::get_user_data_fields ), fetch the data
	 * for returning via the REST API.
	 *
	 * @param WP_User $user Current user.
	 */
	public static function get_user_data_values( $user ) {
		$values = array();
		foreach ( self::get_user_data_fields() as $field ) {
			$values[ $field ] = self::get_user_data_field( $user['id'], $field );
		}
		return $values;
	}

	/**
	 * For all the registered user data fields ( Loader::get_user_data_fields ), update the data
	 * for the REST API.
	 *
	 * @param array   $values   The new values for the meta.
	 * @param WP_User $user     The current user.
	 * @param string  $field_id The field id for the user meta.
	 */
	public static function update_user_data_values( $values, $user, $field_id ) {
		if ( empty( $values ) || ! is_array( $values ) || 'woocommerce_meta' !== $field_id ) {
			return;
		}
		$fields  = self::get_user_data_fields();
		$updates = array();
		foreach ( $values as $field => $value ) {
			if ( in_array( $field, $fields, true ) ) {
				$updates[ $field ] = $value;
				self::update_user_data_field( $user->ID, $field, $value );
			}
		}
		return $updates;
	}

	/**
	 * We store some WooCommerce specific user meta attached to users endpoint,
	 * so that we can track certain preferences or values such as the inbox activity panel last open time.
	 * Additional fields can be added in the function below, and then used via wc-admin's currentUser data.
	 *
	 * @return array Fields to expose over the WP user endpoint.
	 */
	public static function get_user_data_fields() {
		return apply_filters( 'woocommerce_admin_get_user_data_fields', array() );
	}

	/**
	 * Helper to update user data fields.
	 *
	 * @param int    $user_id  User ID.
	 * @param string $field Field name.
	 * @param mixed  $value  Field value.
	 */
	public static function update_user_data_field( $user_id, $field, $value ) {
		update_user_meta( $user_id, 'woocommerce_admin_' . $field, $value );
	}

	/**
	 * Helper to retrive user data fields.
	 *
	 * Migrates old key prefixes as well.
	 *
	 * @param int    $user_id  User ID.
	 * @param string $field Field name.
	 * @return mixed The user field value.
	 */
	public static function get_user_data_field( $user_id, $field ) {
		$meta_value = get_user_meta( $user_id, 'woocommerce_admin_' . $field, true );

		// Migrate old meta values (prefix changed from `wc_admin_` to `woocommerce_admin_`).
		if ( '' === $meta_value ) {
			$old_meta_value = get_user_meta( $user_id, 'wc_admin_' . $field, true );

			if ( '' !== $old_meta_value ) {
				self::update_user_data_field( $user_id, $field, $old_meta_value );
				delete_user_meta( $user_id, 'wc_admin_' . $field );

				$meta_value = $old_meta_value;
			}
		}

		return $meta_value;
	}

	/**
	 * Injects wp-shared-settings as a dependency if it's present.
	 */
	public static function inject_wc_settings_dependencies() {
		if ( wp_script_is( 'wc-settings', 'registered' ) ) {
			$handles_for_injection = [
				'wc-csv',
				'wc-currency',
				'wc-customer-effort-score',
				'wc-navigation',
				// NOTE: This should be removed when Gutenberg is updated and
				// the notices package is removed from WooCommerce Admin.
				'wc-notices',
				'wc-number',
				'wc-date',
				'wc-components',
				'wc-tracks',
			];
			foreach ( $handles_for_injection as $handle ) {
				$script = wp_scripts()->query( $handle, 'registered' );
				if ( $script instanceof _WP_Dependency ) {
					$script->deps[] = 'wc-settings';
				}
			}
		}
	}

	/**
	 * Delete woocommerce_onboarding_homepage_post_id field when the homepage is deleted
	 *
	 * @param int $post_id The deleted post id.
	 */
	public static function delete_homepage( $post_id ) {
		if ( 'page' !== get_post_type( $post_id ) ) {
			return;
		}
		$homepage_id = intval( get_option( 'woocommerce_onboarding_homepage_post_id', false ) );
		if ( $homepage_id === $post_id ) {
			delete_option( 'woocommerce_onboarding_homepage_post_id' );
		}
	}
}