e_created',
				'date_paid'      => 'date_paid',
				'date_completed' => 'date_completed',
			),
		);
		return $settings;
	}

	/**
	 * Gets custom settings used for WC Admin.
	 *
	 * @param array $settings Array of settings to merge into.
	 * @return array
	 */
	private function get_custom_settings( $settings ) {
		$wc_rest_settings_options_controller = new \WC_REST_Setting_Options_Controller();
		$wc_admin_group_settings             = $wc_rest_settings_options_controller->get_group_settings( 'wc_admin' );
		$settings['wcAdminSettings']         = array();

		foreach ( $wc_admin_group_settings as $setting ) {
			if ( ! empty( $setting['id'] ) ) {
				$settings['wcAdminSettings'][ $setting['id'] ] = $setting['value'];
			}
		}
		return $settings;
	}
}