class Program
{
	private static IMqttClient mqttClient = null;
	private static IMqttClientOptions mqttOptions = null;
	private static string server;
	private static string username;
	private static string apiKey;
	private static string clientID;

	static void Main(string[] args)
	{
		MqttFactory factory = new MqttFactory();
		mqttClient = factory.CreateMqttClient();
		bool heatPumpOn = false;

		if (args.Length != 4)
		{
			Console.WriteLine("[MQTT Server] [UserName] [APIKey] [ClientID]");
			Console.WriteLine("Press <enter> to exit");
			Console.ReadLine();
			return;
		}

		server = args[0];
		username = args[1];
		apiKey = args[2];
		clientID = args[3];

		Console.WriteLine($"MQTT Server:{server} Username:{username} ClientID:{clientID}");

		mqttOptions = new MqttClientOptionsBuilder()
			.WithTcpServer(server)
			.WithCredentials(username, "")
			.WithClientId(clientID)
			//.WithTls() // This is a bit of a worry
			.Build();

		mqttClient.ApplicationMessageReceived += MqttClient_ApplicationMessageReceived;
		mqttClient.Disconnected += MqttClient_Disconnected;
		mqttClient.ConnectAsync(mqttOptions).Wait();

		// AskSensors formatted client state update topic
		string stateTopic = $"{username}/{apiKey}";

		while (true)
		{
			string payloadText;
			double temperature = 22.0 + (DateTime.UtcNow.Millisecond / 1000.0);
			double humidity = 50 + (DateTime.UtcNow.Millisecond / 100.0);
			double speed = 10 + (DateTime.UtcNow.Millisecond / 100.0);
			Console.WriteLine($"Topic:{stateTopic} Temperature:{temperature:0.00} Humidity:{humidity:0} HeatPumpOn:{heatPumpOn}");

			// First JSON attempt didn't work
			payloadText = @"{""Humidity"":55}";

            // Second attempt worked
            payloadText = $"module1=22";

            // Third attempt with "real" values injected
            payloadText = $"module1={temperature}&m2={humidity}";

            var message = new MqttApplicationMessageBuilder()
					.WithTopic(stateTopic)
					.WithPayload(payloadText)
					.WithQualityOfServiceLevel(global::MQTTnet.Protocol.MqttQualityOfServiceLevel.AtLeastOnce)
				   .WithExactlyOnceQoS()
				   //.WithAtLeastOnceQoS()
				   //.WithRetainFlag()
				   .Build();

				Console.WriteLine("PublishAsync start");
				mqttClient.PublishAsync(message).Wait();
				Console.WriteLine("PublishAsync finish");

				Thread.Sleep(30100);
			}
		}

	private static async void MqttClient_Disconnected(object sender, MqttClientDisconnectedEventArgs e)
	{
		Debug.WriteLine("Disconnected");
		await Task.Delay(TimeSpan.FromSeconds(5));

		try
		{
			await mqttClient.ConnectAsync(mqttOptions);
		}
		catch (Exception ex)
		{
			Debug.WriteLine("Reconnect failed {0}", ex.Message);
		}
	}