"""
Microservice for Fibonacci
"""

from fib import fib
from socket import *
from threading import Thread


def fib_server(address):
    sock = socket(AF_INET, SOCK_STREAM)
    sock.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
    sock.bind(('', address))
    sock.listen(5)

    while True:
        client, addr = sock.accept()
        print("Connected on {}", addr)
        Thread(target=fib_handler, args=(client,)).start()


def fib_handler(client):
    while True:
        req = client.recv(100)
        if not req:
            break
        n = int(req)
        result = fib(n)
        resp = str(result).encode('ascii') + b'\n'
        client.send(resp)

    print("Closed")


fib_server(25000)