import socket


URLS = {
    '/': 'hello index',
    '/blog': 'hello blog'
}


def generate_content(code, url):
    if code == 404:
        return '<ht>404</h1><p>Not found</p>'
    if code == 405:
        return '<ht>405</h1><p>Method not allowed</p>'
    return '<ht>{}</h1>'.format(URLS)


def  generate_headers(method, url):
    if not method == 'GET':
        return ('HTTP/1.1 405 Method not allowed\n\n', 405)

    if not url in URLS:
        return ('HTTP/1.1 404 Not found\n\n', 404)

    return ('HTTP/1.1 200 OK\n\n', 200)


def parse_request(request):
    parsed = request.split(' ')

    method = parsed[0]
    url = parsed[1]

    return (method, url)


def generate_response(request):
    method, url = parse_request(request)
    headers, code = generate_headers(method, url)
    body = generate_content(code, url)

    return (headers + body).encode()


def run():
    server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
    server_socket.bind(('localhost', 5000))
    server_socket.listen()

    while True:
        client_socket, addr = server_socket.accept()
        request = client_socket.recv(1024)
        print(request)
        print()
        print(addr)

        response = generate_response(request.decode('utf-8'))

        client_socket.sendall(response)
        client_socket.close()


if __name__ == '__main__':
    run()

server_socket.bind(('localhost', 5000))