import json
import ssl
import unittest
from datetime import datetime

import paho.mqtt.client as mqtt

from torch_sub import torch_sub

host = "mqtt.example.com"
port = 8883
config_path = "agent-config/"
mqtt_ca_file = config_path + "ca.crt"
mqtt_cert_file = config_path + "vagrant.crt"
mqtt_key_file = config_path + "vagrant.key"


def agent_connect():
    client = mqtt.Client()
    client.tls_set(
        ca_certs=mqtt_ca_file,
        certfile=mqtt_cert_file,
        keyfile=mqtt_key_file,
        cert_reqs=ssl.CERT_REQUIRED)
    client.connect(host, port, 60)
    return client


def agent_publish(client_id, onion_hostname):
    payload = {
        'clientId': client_id,
        'timestamp': datetime.now().strftime("%d-%b-%Y (%H:%M:%S.%f)"),
        'onionAddress': onion_hostname,
        'sshPort': 22
    }

    client = agent_connect()

    topic = "torch/" + client_id + "/wake"

    client.publish(topic, json.dumps(payload))
    print("Debug: Connected to MQTT Broker at %s://%s:%s/%s" % ("mqtts", host, port, topic))
    print("Debug: Published payload: " + json.dumps(payload))

    client.disconnect()
    print("Debug: Disconnected from MQTT Broker")

    pass


class GivenBrokerAndTorchAgent(unittest.TestCase):
    def test_when_agent_publishes_should_get_hostname_from_subscriber(self):

        clients_json = "clients.json"

        torch_sub.attach(host, port, clients_json)

        agent_publish("client1", "crazyonion.onion")

        file = open(clients_json, "r")
        response = json.load(file)

        self.assertEqual(response['results']['client1']['onionAddress'], "crazyonion.onion")


if __name__ == '__main__':
    unittest.main()