public LuGaMqtt(
LuGaMqttConfig config,
IRepository <Reading> readingRepository)
{
var factory = new MqttFactory();
var options = new ManagedMqttClientOptionsBuilder()
.WithAutoReconnectDelay(TimeSpan.FromSeconds(Constants.ReconnectDelay))
.WithClientOptions(new MqttClientOptionsBuilder()
.WithClientId(config.ClientId)
.WithTcpServer(config.Host, config.Port)
.WithCredentials(config.Username, config.Password)
.Build())
.Build();
_client = factory.CreateManagedMqttClient();
_client.ApplicationMessageReceived += (s, e) =>
{
if (e.ApplicationMessage.Topic.IndexOf("/value", StringComparison.Ordinal) <= -1 ||
e.ApplicationMessage.Topic.IndexOf("$", StringComparison.Ordinal) != -1)
{
return;
}
var reading = new Reading();
var pulled = e.ApplicationMessage.Topic.Split("/");
reading.DeviceId = pulled[1];
reading.ReadingType = pulled[2];
reading.Value = Encoding.UTF8.GetString(e.ApplicationMessage.Payload);
reading.TimeStamp = DateTime.UtcNow;
Console.WriteLine($"DeviceId: {reading.DeviceId}");
Console.WriteLine($"ReadingType: {reading.ReadingType}");
Console.WriteLine($"Value: {reading.Value}");
readingRepository.Add(reading);
};
_client.Connected += async(s, e) =>
{
Console.WriteLine(Constants.ConnectedOutput);
await _client.SubscribeAsync(
new TopicFilterBuilder()
.WithTopic(Constants.SubscribeTopic)
.Build()
);
};
_client.Disconnected += (s, e) => {
Console.WriteLine(Constants.DisconnectedOutput);
};
Task.Run(() => Background(options));
}
static int Main(string[] args)
{
Console.OutputEncoding = Encoding.UTF8;
string environment = Environment.GetEnvironmentVariable(Constants.Environment);
if (String.IsNullOrWhiteSpace(environment))
{
throw new ArgumentNullException("Environment not found in:" + Constants.Environment);
}
Console.WriteLine("Environment: {0}", environment);
// all passwords should be stored in
// %APPDATA%\microsoft\UserSecrets\luga\secrets.json
// https://docs.microsoft.com/en-us/aspnet/core/security/app-secrets?tabs=visual-studio
var builder = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
.AddJsonFile($"appsettings.{environment}.json", optional: true)
.AddEnvironmentVariables();
if (environment != null && environment.Contains("Dev"))
{
builder.AddUserSecrets <Program>();
}
var cfg = builder.Build();
Console.WriteLine($"Connection string: {cfg[Constants.ConnectionString]}");
return((int)HostFactory.Run(x =>
{
var mqttConfig = new LuGaMqttConfig
(
cfg[Constants.Username],
cfg[Constants.Password],
cfg[Constants.ClientId],
cfg[Constants.Host],
Convert.ToInt32(cfg[Constants.Port]));
var readingRepository = new ReadingsRepository(cfg[Constants.ConnectionString]);
x.Service(y => new LuGaMqtt(mqttConfig, readingRepository));
x.SetServiceName(Constants.ServiceName);
x.SetDisplayName(Constants.ServiceName);
}));
}
