package mqttClient

import com.hivemq.client.mqtt.mqtt5.{Mqtt5AsyncClient, Mqtt5Client}
import play.api.Configuration

import java.nio.charset.StandardCharsets

object MqttClientFactory {
  def createClient(configuration: Configuration, suffix: String = ""): Mqtt5AsyncClient = {
    val mqttConfig = configuration.get[Configuration]("mqtt")

    var builder = Mqtt5Client.builder()
      .identifier(mqttConfig.get[String]("clientId") + suffix)
      .serverHost(mqttConfig.get[String]("host"))
      .serverPort(mqttConfig.get("port"))

    mqttConfig.getOptional[String]("username").foreach { username =>
      val password = mqttConfig.get[String]("password").getBytes(StandardCharsets.US_ASCII)
      builder = builder.simpleAuth()
        .username(username)
        .password(password)
        .applySimpleAuth()
    }

    builder.buildAsync()
  }
}