import socket
import sys

# Create a UDP socket
udp_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

def send_file_contents(filename):
    try:
        print(f"reading {filename}...")
        with open(filename, 'rb') as file:
            file_contents = file.read()
    except FileNotFoundError:
        print(f"File '{filename}' not found.")
        return

    print(f"sending content len: {len(file_contents)}...")
    # Send the file contents to the UDP socket
    udp_socket.sendto(file_contents, ('0.0.0.0', 4480))

    print("waiting for response...")
    # Receive and display the response
    response, server_address = udp_socket.recvfrom(1024)
    print(f"Received response from {server_address}:")
    print(response.hex())

if __name__ == "__main__":
    try:
        while True:
            filename = input("Enter a file name (or 'exit' to quit): ")
            if filename == 'exit':
                break
            send_file_contents(filename)
    except KeyboardInterrupt:
        print("\nExiting the program.")
    finally:
        udp_socket.close()