import socket
import threading

HOST = ''
PORT = 2005
MAX_CONNECTIONS = 3
MAX_DINERO = 120000
connections = 0
max_connections_reached = False  # Add a flag for max connections reached

def handle_client(client_socket, addr):
    global connections
    global MAX_DINERO
    global max_connections_reached  # Access the global flag
    print(f"cliente conectado {addr})")
    connections += 1
    if connections < MAX_CONNECTIONS:
        max_connections_reached = False  # Reset the flag when connections drop below max
    print(f"Conexiones activas: {connections}")
    client_socket.settimeout(60)  # Set a timeout of 60 seconds
    while True:
        try:
            datos = client_socket.recv(1024)
            if not datos:
                print("No data received from client. Closing connection.")
                break  # Close the connection when no data is received
            decoded_data = datos.decode('utf-8')
            if ' ' in decoded_data:
                command, amount = decoded_data.split()
                amount = int(amount)
                if command.lower() == 'retirar':
                    if amount <= MAX_DINERO:
                        MAX_DINERO -= amount
                        response = f"Retiro Existoso."
                        print("Retiro Existoso.")
                        print(f"Saldo restante: {MAX_DINERO}")
                    else:
                        response = "Saldo insuficiente por favor intente mas tarde."
                    client_socket.sendall(response.encode('utf-8'))
            else:
                print(f"Received unexpected data: {decoded_data}")
        except socket.timeout:
            print("Client did not send data within the timeout period.")
    connections -= 1
    print(f"Conexiones activas: {connections}")
    client_socket.close()

with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
    s_addr = (HOST, PORT)
    s.bind(s_addr)
    s.listen(MAX_CONNECTIONS)
    while True:
        if connections >= MAX_CONNECTIONS:
            if not max_connections_reached:  # Only print the message if the flag is False
                print('Maximo de conexiones alcanzado, esperando a que se libere una conexion.')
                max_connections_reached = True  # Set the flag to True after printing the message
            continue
        client_socket, addr = s.accept()
        client_thread = threading.Thread(target=handle_client, args=(client_socket, addr))
        client_thread.daemon = True
        client_thread.start()