from wsgiref.simple_server import make_server
import random


def application(env, start_response):
    """
    A basic WSGI application
    """

    if random.random() < 0.5:
        status = "200 OK"
    else:
        status = "502 Bad Gateway"

    headers = [
        ('Content-Type', 'application/json'),
        ('X-WP-TotalPages', '0'),
        ('X-WP-Total', '0'),
    ]

    start_response(status, headers)

    return ["[]".encode('utf-8')]


if __name__ == "__main__":
    make_server('', 80, application).serve_forever()