#!/usr/bin/env -S python3
import sys
import struct
import subprocess

# Read a message from stdin and decode it.
rawLength = sys.stdin.buffer.read(4)
if len(rawLength) == 0:
    sys.exit(0)

# Read the length of the message
messageLength: int = struct.unpack("@I", rawLength)[0]

# Decode the message
message = sys.stdin.buffer.read(messageLength).decode("utf-8")

# Run the background setting with a link to the image
_ = subprocess.run(["setbg", "-tw", message.replace('"', "")])