import socket
import threading
import select

class Connection:
    sock=""
    addr=0

if 1:
    HOST = "0.0.0.0"  # open to network
else:
    HOST = "127.0.0.1"  # Standard loopback interface address (localhost)
PORT = 65432  # Port to listen on (non-privileged ports are > 1023)
clients=0
run = True
connections=[]

def send_message(conn, data):
    for i in connections:
        if i != conn:
            i.sock.send(data)

def handle_connection(conn):
    with conn.sock:
        while run:
            ready_to_read, _, _ = select.select([conn.sock], [], [], 1.0)
            if ready_to_read:
                data = conn.sock.recv(1024)
                if data:
                    send_message(conn, data)
                else:
                    print(f"Disconnected: {conn.addr}")
                    connections.remove(conn)
                    break


if __name__ == "__main__":
    hostname = socket.gethostname()
    IPAddr = socket.gethostbyname(hostname)

    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
        try:
            s.bind((HOST, PORT))
            print(f"Server {hostname} on ip {IPAddr}")
            while run:
                conn=Connection()
                s.listen()
                conn.sock, conn.addr = s.accept()
                connections.append(conn)
                threading.Thread(target=handle_connection, args=(conn,)).start()
        except KeyboardInterrupt:
            run = False
            print("Shutdown server")
        finally:
            s.close()