Auto deduct wallet balance while creating orders from backend.

wallet-payment-for-manual-orders.php

add_action( 'woocommerce_update_order', 'woocommerce_update_order_callback' );
if ( ! function_exists( 'woocommerce_update_order_callback' ) ) {
	/**
	 * Auto deduct wallet balance while creating orders from backend.
	 *
	 * @param integer $order_id Order ID.
	 * @return void
	 */
	function woocommerce_update_order_callback( $order_id ) {
		$order = wc_get_order( $order_id );
		if ( 'wallet' === $order->get_payment_method( 'edit' ) && ! $order->get_transaction_id( 'edit' ) && $order->has_status( apply_filters( 'woocommerce_valid_order_statuses_for_payment_complete', array( 'on-hold', 'pending', 'failed', 'cancelled' ), $order ) ) ) {
			if ( woo_wallet()->wallet->get_wallet_balance( $order->get_customer_id( 'edit' ), 'edit' ) >= $order->get_total( 'edit' ) ) {
				$wallet_response = woo_wallet()->wallet->debit( $order->get_customer_id( 'edit' ), $order->get_total( 'edit' ), apply_filters( 'woo_wallet_order_payment_description', __( 'For order payment #', 'woo-wallet' ) . $order->get_order_number(), $order ) );
				if ( $wallet_response ) {
					$order->set_transaction_id( $wallet_response );
					do_action( 'woo_wallet_payment_processed', $order_id, $wallet_response );
					$order->save();
				} else {
					$order->add_order_note( __( 'Something went wrong with processing payment please try again.', 'woo-wallet' ) );
				}
			} else {
				$order->add_order_note( __( 'Insufficient wallet balance', 'woo-wallet' ) );
			}
		}
	}
}